Acer K137 vs Asus P3B vs Philips PPX4935 vs Viewsonic PJD7830HDL
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Top Prices Reasons For Reasons Against Reviews & Awards Date Released Key Features Energy Efficiency Price Trend Specification
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Acer K137vsAsus P3BvsPhilips PPX4935vsViewsonic PJD7830HDL

Acer K137

74

Overall Score

74

Overall Score

Acer K137

$549.99
Our Verdict:
An spectacularly economical to run and award winning moderate noise level 1280 x 800 resolution data projector, with good features
92
Reviews
27 Reviews + 1 Award
78
Features
Good Features
97
Running Costs
$17 Over 5 Years
74
Overall Score
Very Good
31dB 1280 X 800 10000:1 Yes Feb 2015
Noise Level Projector Native Resolution Contrast Ratio 3D Release Date
Noise Level 31dB
Projector Native Resolution 1280 X 800
Contrast Ratio 10000:1
3D Yes
Release Date Feb 2015
Asus P3B

85

Overall Score

85

Overall Score

Asus P3B

$595.24
Our Verdict:
An award winning and sensationally economical to run moderate noise level 1280 x 800 resolution projector, with a very affordable price and one of the highest contrast ratios around
92
Reviews
22 Reviews + 3 Awards
91
Value for Money
Excellent
81
Features
Fully-Featured
97
Running Costs
$16 Over 5 Years
85
Overall Score
Excellent
32dB 1280 X 800 100000:1 Yes Oct 2015
Noise Level Projector Native Resolution Contrast Ratio 3D Release Date
Noise Level 32dB
Projector Native Resolution 1280 X 800
Contrast Ratio 100000:1
3D Yes
Release Date Oct 2015
Philips PPX4935

82

Overall Score

82

Overall Score

Philips PPX4935

$811.59
Our Verdict:
An astonishingly high contrast ratio and very good value for money 720p projector, with great features and an amazingly quiet 28dB noise level
88
Reviews
4 Reviews
94
Value for Money
Excellent
80
Features
Fully-Featured
82
Overall Score
Excellent
28dB 1280 X 720 (720p) 100000:1 No Apr 2016
Noise Level Projector Native Resolution Contrast Ratio 3D Release Date
Noise Level 28dB
Projector Native Resolution 1280 X 720 (720p)
Contrast Ratio 100000:1
3D No
Release Date Apr 2016
Viewsonic PJD7830HDL

77

Overall Score

77

Overall Score

Viewsonic PJD7830HDL

$1,134.98
$278.56
Our Verdict:
An award winning and good spec moderate noise level 1080p projector, with low running costs and a fair price
94
Reviews
68 Reviews + 3 Awards
70
Value for Money
Good
79
Features
Good Features
78
Running Costs
$64 Over 5 Years
77
Overall Score
Very Good
32dB 1920 X 1080 (1080p) 22000:1 No Jul 2015
Noise Level Projector Native Resolution Contrast Ratio 3D Release Date
Noise Level 32dB
Projector Native Resolution 1920 X 1080 (1080p)
Contrast Ratio 22000:1
3D No
Release Date Jul 2015
Acer K137

74

Overall Score

74

Overall Score

Acer K137

$549.99
Our Verdict:
An spectacularly economical to run and award winning moderate noise level 1280 x 800 resolution data projector, with good features
92
Reviews
27 Reviews + 1 Award
78
Features
Good Features
97
Running Costs
$17 Over 5 Years
74
Overall Score
Very Good
31dB 1280 X 800 10000:1 Yes Feb 2015
Noise Level Projector Native Resolution Contrast Ratio 3D Release Date
Noise Level 31dB
Projector Native Resolution 1280 X 800
Contrast Ratio 10000:1
3D Yes
Release Date Feb 2015
Asus P3B

85

Overall Score

85

Overall Score

Asus P3B

$595.24
Our Verdict:
An award winning and sensationally economical to run moderate noise level 1280 x 800 resolution projector, with a very affordable price and one of the highest contrast ratios around
92
Reviews
22 Reviews + 3 Awards
91
Value for Money
Excellent
81
Features
Fully-Featured
97
Running Costs
$16 Over 5 Years
85
Overall Score
Excellent
32dB 1280 X 800 100000:1 Yes Oct 2015
Noise Level Projector Native Resolution Contrast Ratio 3D Release Date
Noise Level 32dB
Projector Native Resolution 1280 X 800
Contrast Ratio 100000:1
3D Yes
Release Date Oct 2015
Philips PPX4935

82

Overall Score

82

Overall Score

Philips PPX4935

$811.59
Our Verdict:
An astonishingly high contrast ratio and very good value for money 720p projector, with great features and an amazingly quiet 28dB noise level
88
Reviews
4 Reviews
94
Value for Money
Excellent
80
Features
Fully-Featured
82
Overall Score
Excellent
28dB 1280 X 720 (720p) 100000:1 No Apr 2016
Noise Level Projector Native Resolution Contrast Ratio 3D Release Date
Noise Level 28dB
Projector Native Resolution 1280 X 720 (720p)
Contrast Ratio 100000:1
3D No
Release Date Apr 2016
Viewsonic PJD7830HDL

77

Overall Score

77

Overall Score

Viewsonic PJD7830HDL

$1,134.98
$278.56
Our Verdict:
An award winning and good spec moderate noise level 1080p projector, with low running costs and a fair price
94
Reviews
68 Reviews + 3 Awards
70
Value for Money
Good
79
Features
Good Features
78
Running Costs
$64 Over 5 Years
77
Overall Score
Very Good
32dB 1920 X 1080 (1080p) 22000:1 No Jul 2015
Noise Level Projector Native Resolution Contrast Ratio 3D Release Date
Noise Level 32dB
Projector Native Resolution 1920 X 1080 (1080p)
Contrast Ratio 22000:1
3D No
Release Date Jul 2015

Top Prices

Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Amazon US
Acer K137 Portable Home Theater Projector (White)
$549.99
Go to Store
1 Price from 1 Store | $549.99
PCNation-Outlet
New Asus P3b 3d Ready Dlp Projector - 16_10 (Brand new, unopened) - on
$595.24
Go to Store
Antonline
Asus P3B 3D Ready DLP Projector - 16_10 (Brand new, unopened) - on
$600.36
Go to Store
Target PC Inc 1-888-311-4455
NEW ASUS P3B DLP Projector Proj WXGA 1280x800 (Brand new, unopened) - on
$609.98
Go to Store
StyleTechGroup
ASUS P3B 16_10 WXGA 1280 x 800 800 lm HDMI USB 3D Ready DLP Projector (Brand new, unopened) - on
$620.61
Go to Store
eBay
ASUS P3B Portable LED Projector, 800 Lumens, WXGA (1280*800), Built-in 12000mAh (Brand new, unopened)
$986.48
Go to Store
5 Prices from 5 Stores | $595.24-$986.48
eBay
Philips PPX4935 Pocket Smart Projector, 350 Lumens, LED, 720p, HDMI, Wifi, (Brand new, unopened)
$811.59
Go to Store
Amazon US
Philips PPX4935 Pocket Smart Projector, 350 Lumens, LED, 720p, HDMI, Wifi, Bluetooth, 120 Inches Display
$859.99
Go to Store
2 Prices from 2 Stores | $811.59-$859.99
Amazon US
ViewSonic PJD7830HDL 3200 Lumens 1080p HDMI Projector (Discontinued by Manufacturer)
$1,134.98
Go to Store
eBay
ViewSonic PJD7830HDL 3200 Lumens 1080p HDMI Projector Discontinued by (Brand new, unopened)
$1,516.18
Go to Store
eBay
ViewSonic PJD7830HDL 3200 Lumens 1080p HDMI Projector (Discontinued by... (Brand new, unopened)
$1,587.07
Go to Store
eBay
ViewSonic PJD7830HDL 3200 Lumens 1080p HDMI Projector Discontinued by (Brand new, unopened)
$1,608.04
Go to Store
- Show less prices from eBay
goHastings
ViewSonic PJD7830HDL 3200 Lumens 1080p HDMI Projector (Discontinued by... (Brand new, unopened) - on
$2,012.44
Go to Store
Super Store 2017
ViewSonic PJD7830HDL 3200 Lumens 1080p HDMI Projector (Discontinued by... (Brand new, unopened) - on
$2,576.99
Go to Store
6 Prices from 4 Stores | $1,134.98-$2,576.99
Report an incorrect price | Found it cheaper elsewhere?

Reasons For

Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
3 Reasons For
3D
The Acer K137 supports 3D, and so does the Asus P3B, but the Philips PPX4935 and the Viewsonic PJD7830HDL do not support 3D.

3D compatible projectors are able to display 3D content. Most projectors will require you to wear special glasses in order to view the 3D effect.

A 3D projector allows you to view the huge range of 3D films and content that is now available.

Read more Read less | Edit
Ceiling Mountable
The Acer K137 is a ceiling mountable projector (as are the Asus P3B and the Viewsonic PJD7830HDL), whereas the Philips PPX4935 is not ceiling mountable.

This indicates whether the projector is capable of being mounted to the ceiling or not.

Ceiling mounting is the best way of assuring the projector always has a clear line of sight to the projecting surface.

Read more Read less | Edit
$45 Cheaper
The Acer K137 costs $45.25 less than the Asus P3B, costs $261.60 less than the Philips PPX4935 and costs $584.99 less than the Viewsonic PJD7830HDL.
6 Reasons For
Longer Service Life of Lamp
The Asus P3B is a 30,000h lamp service life projector. That's 10,000h longer than the Acer K137 (20,000h) and 26,500h longer than the Viewsonic PJD7830HDL (3,500h).

This indicates how long the lamp in the projector will last before it needs to be replaced, measured in hours.

A longer life lamp means you'll need to replace it far less frequently, saving you money.

Read more Read less | Edit
3D
The Asus P3B supports 3D, and so does the Acer K137, but the Philips PPX4935 and the Viewsonic PJD7830HDL do not support 3D.

3D compatible projectors are able to display 3D content. Most projectors will require you to wear special glasses in order to view the 3D effect.

A 3D projector allows you to view the huge range of 3D films and content that is now available.

Read more Read less | Edit
Ceiling Mountable
The Asus P3B is a ceiling mountable projector (as are the Acer K137 and the Viewsonic PJD7830HDL), whereas the Philips PPX4935 is not ceiling mountable.

This indicates whether the projector is capable of being mounted to the ceiling or not.

Ceiling mounting is the best way of assuring the projector always has a clear line of sight to the projecting surface.

Read more Read less | Edit
More Shops Are Selling it
A greater number of stores increases the chances of this projector remaining in stock and also increases the price competition amongst retailers for the product.
75% Cheaper to Run Over Five Years
The Asus P3B only costs $16 to run over five years but the Acer K137 costs $17 to run (11% more) and the Viewsonic PJD7830HDL costs $64 to run (307% more).
Read more Read less
Two More Awards
The Asus P3B has 3 awards, whereas the Acer K137 has 1 award.
2 Reasons For
15% Quieter Noise Level
The Philips PPX4935 has a noise level of 28dB, however the Acer K137 is a 31dB projector (3dB louder) and the Asus P3B and the Viewsonic PJD7830HDL are both 32dB projectors (4dB louder).

The noise level of the projector is the amount of noise that the projector makes (caused by the cooling fan inside the projector) when it is running.

A lower noise level means that the projector will be quieter when it is running. This means that you will be able to appreciate the quieter parts of films better without the background noise of the projector running.

Read more Read less | Edit
Wi-Fi
The Philips PPX4935 supports Wi-Fi, whereas the Acer K137 does not support Wi-Fi.

Wi-Fi projectors can connect to your local WiFi network which means that you display content from other devices connected to the same network.

Wi-Fi projectors allow you display content from other devices connected to the same network without the need to use a cable.

Read more Read less | Edit
7 Reasons For
Hugely Brighter Projector Brightness
Viewsonic PJD7830HDL is 3,200 ANSI lumens brightness, but the Acer K137 is only a 700 ANSI lumens brightness projector (2,500 ANSI lumens dimmer), the Asus P3B is only an 800 ANSI lumens brightness projector (2,400 ANSI lumens dimmer) and the Philips PPX4935 is only a 350 ANSI lumens brightness projector (2,850 ANSI lumens dimmer).

This is how bright the bulb in the projector is, measured in 'lumens'.

A brighter bulb means that the projector will be seen clearer, and can project to surfaces father away without appearing too dark.

Read more Read less | Edit
Full HD
The Viewsonic PJD7830HDL supports full HD, however the Acer K137, the Asus P3B and the Philips PPX4935 do not support full HD.

Full HD projectors can display full HD content such as films and HD TV.

Full HD projectors can display full HD content such as films and HD TV.

Read more Read less | Edit
Ceiling Mountable
The Viewsonic PJD7830HDL is ceiling mountable, and so are the Acer K137 and the Asus P3B, however the Philips PPX4935 is not.

This indicates whether the projector is capable of being mounted to the ceiling or not.

Ceiling mounting is the best way of assuring the projector always has a clear line of sight to the projecting surface.

Read more Read less | Edit
Two More Awards
The Viewsonic PJD7830HDL has 3 awards from expert review sites, however the Acer K137 has 1 award.
A Little Better Expert Reviews
The Viewsonic PJD7830HDL has an average expert review score of 77% based on 13 reviews, but the Acer K137 has an average rating of 75% (based on 7 reviews), the Asus P3B has an average rating of 75% (based on 10 reviews) and the Philips PPX4935 has an average rating of 60% (based on 5 reviews).
A Little Better User Reviews
The Viewsonic PJD7830HDL has an average user review score of 97% based on 52 reviews, but the Acer K137 has an average rating of 94% (based on 14 reviews), the Asus P3B has an average rating of 83% (based on 16 reviews) and the Philips PPX4935 has an average rating of 87% (based on 3 reviews).
Better Brand
Viewsonic projectors have an average rating of 88.7%, however Acer has an average rating of 80.9%, Asus has an average rating of 79% and Philips has an average rating of 69%.

Reasons Against

Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
11 Reasons Against
Moderately Louder Noise Level
The Acer K137 has a noise level of 31dB, however the Asus P3B and the Viewsonic PJD7830HDL are both 32dB projectors (1dB louder) and the Philips PPX4935 is a 28dB projector (3dB quieter).

The noise level of the projector is the amount of noise that the projector makes (caused by the cooling fan inside the projector) when it is running.

A lower noise level means that the projector will be quieter when it is running. This means that you will be able to appreciate the quieter parts of films better without the background noise of the projector running.

Read more Read less | Edit
4x Dimmer Projector Brightness
The Acer K137 has a projector brightness of 700 ANSI lumens. That's 100 ANSI lumens dimmer than the Asus P3B (800 ANSI lumens), 350 ANSI lumens brighter than the Philips PPX4935 (350 ANSI lumens) and 2,500 ANSI lumens dimmer than the Viewsonic PJD7830HDL (3,200 ANSI lumens).

This is how bright the bulb in the projector is, measured in 'lumens'.

A brighter bulb means that the projector will be seen clearer, and can project to surfaces father away without appearing too dark.

Read more Read less | Edit
Shorter Service Life of Lamp
The Acer K137 is a 20,000h lamp service life projector. That's 10,000h shorter than the Asus P3B (30,000h) and 16,500h longer than the Viewsonic PJD7830HDL (3,500h).

This indicates how long the lamp in the projector will last before it needs to be replaced, measured in hours.

A longer life lamp means you'll need to replace it far less frequently, saving you money.

Read more Read less | Edit
Does Not Support Full HD
The Acer K137 does not support full HD (As do the the Asus P3B and the Philips PPX4935), however the Viewsonic PJD7830HDL supports full HD.

Full HD projectors can display full HD content such as films and HD TV.

Full HD projectors can display full HD content such as films and HD TV.

Read more Read less | Edit
Less Retailers
Only 1 shop sell the Acer K137, whereas 5 shops sell the Asus P3B, 2 retailers sell the Philips PPX4935 and 4 shops sell the Viewsonic PJD7830HDL.
Smaller numbers of stores reduces the price competition amongst retailers for this projector and also reduces the chances of the product remaining in stock.
Read more Read less
Over One Year Older
The Acer K137 is older than the Asus P3B by eight months, older than the Philips PPX4935 by 14 months and older than the Viewsonic PJD7830HDL by five months.
More Expensive to Run Over Five Years by 11%
The running costs of the Acer K137 are $17 which is $2 more than the Asus P3B over five years. Show assumptions.
Fewer Awards
Whilst the Acer K137 has received 1 award, the Asus P3B has received 3 awards and the Viewsonic PJD7830HDL has received 3 awards.
Marginally Lower Expert Review Score
The Acer K137's average expert rating is only 75%, however the Viewsonic PJD7830HDL's is 77% (based on 13 reviews).
Marginally Lower User Review Score
The Acer K137's average user rating is 94%, however the Viewsonic PJD7830HDL's is 97% (based on 52 reviews).
Worse Brand
Acer projectors have an average rating of only 80.9%, whereas Viewsonic has an average rating of 88.7%.
8 Reasons Against
13% Louder Noise Level
The Asus P3B has a noise level of 32dB (as does the Viewsonic PJD7830HDL), however the Acer K137 is a 31dB projector (1dB quieter) and the Philips PPX4935 is a 28dB projector (4dB quieter).

The noise level of the projector is the amount of noise that the projector makes (caused by the cooling fan inside the projector) when it is running.

A lower noise level means that the projector will be quieter when it is running. This means that you will be able to appreciate the quieter parts of films better without the background noise of the projector running.

Read more Read less | Edit
Vastly Dimmer Projector Brightness
The Asus P3B has a projector brightness of 800 ANSI lumens. That's 100 ANSI lumens brighter than the Acer K137 (700 ANSI lumens), 450 ANSI lumens brighter than the Philips PPX4935 (350 ANSI lumens) and 2,400 ANSI lumens dimmer than the Viewsonic PJD7830HDL (3,200 ANSI lumens).

This is how bright the bulb in the projector is, measured in 'lumens'.

A brighter bulb means that the projector will be seen clearer, and can project to surfaces father away without appearing too dark.

Read more Read less | Edit
Does Not Support Full HD
The Asus P3B does not support full HD (As do the the Acer K137 and the Philips PPX4935), however the Viewsonic PJD7830HDL supports full HD.

Full HD projectors can display full HD content such as films and HD TV.

Full HD projectors can display full HD content such as films and HD TV.

Read more Read less | Edit
$45 More Expensive
The Asus P3B is more expensive than the Acer K137 by $45.
Six Months Older
The Asus P3B is older than the Philips PPX4935 by six months.
A Little Lower Expert Review Score
The Asus P3B's average expert rating is only 75%, however the Viewsonic PJD7830HDL's is 77% (based on 13 reviews).
A Lot Lower User Review Score
The Asus P3B's average user rating is 83%, however the Acer K137's is 94% (based on 14 reviews), the Philips PPX4935's is 87% (based on 3 reviews) and the Viewsonic PJD7830HDL's is 97% (based on 52 reviews).
Worse Brand
Asus projectors have an average rating of only 79%, whereas Acer has an average rating of 80.9% and Viewsonic has an average rating of 88.7%.
7 Reasons Against
2,850 ANSI Lumens Dimmer Projector Brightness
The Philips PPX4935 has a projector brightness of 350 ANSI lumens. That's 350 ANSI lumens dimmer than the Acer K137 (700 ANSI lumens), 450 ANSI lumens dimmer than the Asus P3B (800 ANSI lumens) and 2,850 ANSI lumens dimmer than the Viewsonic PJD7830HDL (3,200 ANSI lumens).

This is how bright the bulb in the projector is, measured in 'lumens'.

A brighter bulb means that the projector will be seen clearer, and can project to surfaces father away without appearing too dark.

Read more Read less | Edit
Does Not Support Full HD
The Philips PPX4935 does not support full HD (As do the the Acer K137 and the Asus P3B), however the Viewsonic PJD7830HDL supports full HD.

Full HD projectors can display full HD content such as films and HD TV.

Full HD projectors can display full HD content such as films and HD TV.

Read more Read less | Edit
$262 More Expensive
The Philips PPX4935 is more expensive than the Acer K137 by $262 and more expensive than the Asus P3B by $216.
Less Retailers
Only 2 retailers sells the Philips PPX4935, whereas 5 retailers sell the Asus P3B and 4 shops sell the Viewsonic PJD7830HDL.
Smaller numbers of stores reduces the price competition amongst retailers for this projector and also reduces the chances of the product remaining in stock.
Read more Read less
A Lot Lower Expert Review Score
The Philips PPX4935's average expert rating is only 60%, however the Acer K137's is 75% (based on 7 reviews), the Asus P3B's is 75% (based on 10 reviews) and the Viewsonic PJD7830HDL's is 77% (based on 13 reviews).
A Lot Lower User Review Score
The Philips PPX4935's average user rating is 87%, however the Acer K137's is 94% (based on 14 reviews) and the Viewsonic PJD7830HDL's is 97% (based on 52 reviews).
Worse Brand
Philips projectors have an average rating of only 69%, whereas Acer has an average rating of 80.9%, Asus has an average rating of 79% and Viewsonic has an average rating of 88.7%.
6 Reasons Against
Louder Noise Level
The Viewsonic PJD7830HDL is a 32dB projector, and so does the Asus P3B. That's 1dB louder than the Acer K137 (31dB) and 4dB louder than the Philips PPX4935 (28dB).

The noise level of the projector is the amount of noise that the projector makes (caused by the cooling fan inside the projector) when it is running.

A lower noise level means that the projector will be quieter when it is running. This means that you will be able to appreciate the quieter parts of films better without the background noise of the projector running.

Read more Read less | Edit
Eight Times Shorter Service Life of Lamp
The Viewsonic PJD7830HDL has a service life of lamp of 3,500h, however the Acer K137 is a 20,000h lamp service life projector (16,500h longer) and the Asus P3B is a 30,000h lamp service life projector (26,500h longer).

This indicates how long the lamp in the projector will last before it needs to be replaced, measured in hours.

A longer life lamp means you'll need to replace it far less frequently, saving you money.

Read more Read less | Edit
More Expensive by $585
The Viewsonic PJD7830HDL is $585 more expensive than the Acer K137, $540 more expensive than the Asus P3B and $323 more expensive than the Philips PPX4935.
Not As Many Stockists
The Viewsonic PJD7830HDL is only stocked by 4 retailers, however the Asus P3B is stocked by 5 sellers.
Fewer numbers of sellers reduces the chances of the product remaining in stock and also reduces the price competition amongst retailers for this projector.
Read more Read less
Older by Nine Months
The Viewsonic PJD7830HDL is three months older than the Asus P3B and nine months older than the Philips PPX4935.
$49 More Expensive to Run Over Five Years
Over five years the running costs of the Viewsonic PJD7830HDL are $64 which is $47 more than the Acer K137 and $49 more than the Asus P3B. Show assumptions.

Reviews & Awards

Awards

The Viewsonic PJD7830HDL and Asus P3B have the most awards out of the four projectors with 3 awards each. The Acer K137 has the second most awards with 1 award. Compare all award winning projectors.
Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
1 Award
01net.com: 4 Star
3 Awards Best
ddworld.cz: Recommended Award profesionalreview.com: Gold vido.com.ua: Recommended
No awards found
3 Awards Best
crowdedbrain.co.uk: Recommended itwriter.ru: Recommended technopat.net: Patented Design

Average Expert Rating

The Viewsonic PJD7830HDL has the best expert reviews out of the four projectors with an average review score of 77% based on 13 reviews. The Acer K137 and Asus P3B have the second best expert reviews each with an average review score of 75%. The Philips PPX4935 has the third best expert reviews with an average review score of 60% based on 5 reviews.
Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
5 stars
0 reviews
4 stars
4 reviews
3 stars
0 reviews
2 stars
0 reviews
1 star
0 reviews
5 stars
1 review
4 stars
1 review
3 stars
1 review
2 stars
0 reviews
1 star
0 reviews
5 stars
0 reviews
4 stars
0 reviews
3 stars
1 review
2 stars
0 reviews
1 star
0 reviews
Best
5 stars
0 reviews
4 stars
3 reviews
3 stars
0 reviews
2 stars
0 reviews
1 star
0 reviews

Average User Rating

The Viewsonic PJD7830HDL has the best user reviews out of the four projectors with an average review score of 97% based on 52 reviews. The Acer K137 has the second best user reviews with an average review score of 94% based on 14 reviews. The Philips PPX4935 has the third best user reviews with an average review score of 87% based on 3 reviews. The Asus P3B has the fourth best user reviews with an average review score of 83% based on 16 reviews.
Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
5 stars
10 reviews
4 stars
4 reviews
3 stars
0 reviews
2 stars
0 reviews
1 star
0 reviews
5 stars
8 reviews
4 stars
4 reviews
3 stars
3 reviews
2 stars
0 reviews
1 star
1 review
5 stars
1 review
4 stars
2 reviews
3 stars
0 reviews
2 stars
0 reviews
1 star
0 reviews
Best
5 stars
43 reviews
4 stars
9 reviews
3 stars
0 reviews
2 stars
0 reviews
1 star
0 reviews

Average Brand Rating

Viewsonic has the best brand rating with an average brand rating of 88% based on 1,027 reviews. Acer has the second best brand rating with an average brand rating of 80% based on 1,643 reviews. Asus has the third best brand rating with an average brand rating of 78% based on 380 reviews. Philips has the fourth best brand rating with an average brand rating of 69% based on 334 reviews.
Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Acer

81

81

Based on 1,643 reviews
Asus

79

79

Based on 380 reviews
Philips

69

69

Based on 334 reviews
Viewsonic

89

89

Based on 1,027 reviews

Trusted Reviews Review Score

Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Trusted Reviews logo
What is the Acer K137? The K137 is an ultra-small ?travel' projector that uses DLP technology and offers such surprisingly strong features as a 1280x800 native resolution, 3D playback, a built-in USB card reader, and most startlingly of all for a ?po...
Acer is to be commended on trying to do something different with the K137. In fact, its audio performance is so strong versus its rivals that for some people it will be enough in itself to justify a purchase.Its lack of black level response and sligh...
May 2014
No data No data
Trusted Reviews logo
What is the ViewSonic LightStream PJD7830HDL? The LightStream PJD7830HDL is a single-chip DLP projector that distinguishes itself from the crowd by offering high brightness, a SonicExpert sound system, a proprietary "true to life" colour system ? at...
...
Oct 2015

Date Released

Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
36 months old 28 months old 22 months old Best 32 months old

Key Features

Noise Level

The noise level of the projector is the amount of noise that the projector makes (caused by the cooling fan inside the projector) when it is running.

A lower noise level means that the projector will be quieter when it is running. This means that you will be able to appreciate the quieter parts of films better without the background noise of the projector running.

Projector Brightness

This is how bright the bulb in the projector is, measured in 'lumens'.

A brighter bulb means that the projector will be seen clearer, and can project to surfaces father away without appearing too dark.

Service Life Of Lamp

This indicates how long the lamp in the projector will last before it needs to be replaced, measured in hours.

A longer life lamp means you'll need to replace it far less frequently, saving you money.

3D

3D compatible projectors are able to display 3D content. Most projectors will require you to wear special glasses in order to view the 3D effect.

A 3D projector allows you to view the huge range of 3D films and content that is now available.

Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Best
Yes
Best
Yes
No
No

Full HD

Full HD projectors can display full HD content such as films and HD TV.

Full HD projectors can display full HD content such as films and HD TV.

Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Best
No
Best
No
Best
No
Yes

Wi-Fi

Wi-Fi projectors can connect to your local WiFi network which means that you display content from other devices connected to the same network.

Wi-Fi projectors allow you display content from other devices connected to the same network without the need to use a cable.

Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Best
No
unknown
Yes
unknown

Energy Efficiency

Running Costs Over 5 Years

Projector running costs calculated based on an average of 5 hours of use per week. The running cost comprises the electricity cost when using the projector and the electricity standby cost. Compare all energy saving projectors.

Environmental Impact

We have calculated the amount of CO2 that will be generated by running each of these projectors for 5 years. We have then converted that into the number of tree seedlings that you would need to plant and grow for 10 years in order to offset that amount of CO2.
Acer K137
Acer
K137
3 trees 0.1 tonnes CO2
Asus P3B
Asus
P3B
2 trees 0.092 tonnes CO2 (Best)
Viewsonic PJD7830HDL
Viewsonic
PJD7830HDL
10 trees 0.38 tonnes CO2

Specification

 
 
 
Performance Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Noise Level 31dB 32dB 28dB
BEST
32dB
Noise Level (economic Mode) 29dB Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Operating System Installed Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Operating System Version Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Internal Memory Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
 
 
 
Projector Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Projector Native Resolution
1920 x 1080 (1080p)
 1920 x 1080 (1080p)
1920 x 1080 (1080p)
 1920 x 1080 (1080p)
1920 x 1080 (1080p)
 1920 x 1080 (1080p)
1920 x 1080 (1080p)
 1920 x 1080 (1080p)
Contrast Ratio
100000:1
 100000:1
100000:1
 100000:1
100000:1
 100000:1
100000:1
 100000:1
Projector Brightness 700 ANSI Lumens 800 ANSI Lumens
BEST
350 ANSI Lumens 3,200 ANSI Lumens
Keystone Correction, Horizontal Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Maximum Digital Resolution
1920 x 1200
 1920 x 1200
1920 x 1200
 1920 x 1200
1920 x 1200
 1920 x 1200
1920 x 1200
 1920 x 1200
Keystone Correction, Vertical Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Matrix Size Unknown - Click to provide data 0.45" Unknown - Click to provide data Unknown - Click to provide data
Minimum Vertical Synchronization 0.05kHz Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Maximum Horizontal Synchronization 0.1kHz Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Maximum Vertical Synchronization 120kHz Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Minimum Horizontal Synchronization 0.03kHz Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Zoom Ratio
1.7:1
 1.7:1
1.7:1
 1.7:1
1.7:1
 1.7:1
1.7:1
 1.7:1
Projection Distance
Screen Size Compatibility Unknown - Click to provide data
 
 
 
Lamps Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Lamp 1lamp(s) Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Service Life of Lamp (economic Mode) 30,000h Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Bulb Power Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data 220W
Service Life of Lamp 20,000h 30,000h
BEST
Unknown - Click to provide data 3,500h
 
 
 
Lens System Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Digital Zoom 1.7x Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
 
 
 
Video Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Supported Graphics Resolutions
1920 x 1080 (HD 1080) 1280 x 800 (WXGA)
1280 x 800
 1920 x 1080 (HD 1080)
 1280 x 800 (WXGA)
 1280 x 800
1920 x 1080 (HD 1080) 1280 x 800 (WXGA)
1280 x 800
 1920 x 1080 (HD 1080)
 1280 x 800 (WXGA)
 1280 x 800
1920 x 1080 (HD 1080) 1280 x 800 (WXGA)
1280 x 800
 1920 x 1080 (HD 1080)
 1280 x 800 (WXGA)
 1280 x 800
1920 x 1080 (HD 1080) 1280 x 800 (WXGA)
1280 x 800
 1920 x 1080 (HD 1080)
 1280 x 800 (WXGA)
 1280 x 800
 
 
 
Ports & Interfaces Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Headphone Outputs Unknown - Click to provide data 1 1 Unknown - Click to provide data
Audio (L,R) Out Unknown - Click to provide data Unknown - Click to provide data 1 Unknown - Click to provide data
Audio (L,R) in Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data 1
Composite Video in Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data 1
USB 2.0 Port 1 3
BEST
2 2
HDMI Port 1 1 1 2
BEST
VGA (D-Sub) Port Unknown - Click to provide data 1 Unknown - Click to provide data 1
 
 
 
Storage Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Internal Storage Capacity Unknown - Click to provide data 2GB 4GB
BEST
Unknown - Click to provide data
 
 
 
Multimedia Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Audio Formats Supported Unknown - Click to provide data
Image Formats Supported
JPG BMP
PNG JPEG XR
TIF
 JPG
 BMP
 PNG
 JPEG XR
 TIF
JPG BMP
PNG JPEG XR
TIF
 JPG
 BMP
 PNG
 JPEG XR
 TIF
JPG BMP
PNG JPEG XR
TIF
 JPG
 BMP
 PNG
 JPEG XR
 TIF
JPG BMP
PNG JPEG XR
TIF
 JPG
 BMP
 PNG
 JPEG XR
 TIF
Video Formats Supported
MPEG1 MPEG2
MPEG4 H.264
VC-1 WMV
3GP MOV
MKV VOB
M4V 3G2
M-JPEG H.263
AVCHD XVID
MTS H.265
 MPEG1
 MPEG2
 MPEG4
 H.264
 VC-1
 WMV
 3GP
 MOV
 MKV
 VOB
 M4V
 3G2
 M-JPEG
 H.263
 AVCHD
 XVID
 MTS
 H.265
MPEG1 MPEG2
MPEG4 H.264
VC-1 WMV
3GP MOV
MKV VOB
M4V 3G2
M-JPEG H.263
AVCHD XVID
MTS H.265
 MPEG1
 MPEG2
 MPEG4
 H.264
 VC-1
 WMV
 3GP
 MOV
 MKV
 VOB
 M4V
 3G2
 M-JPEG
 H.263
 AVCHD
 XVID
 MTS
 H.265
MPEG1 MPEG2
MPEG4 H.264
VC-1 WMV
3GP MOV
MKV VOB
M4V 3G2
M-JPEG H.263
AVCHD XVID
MTS H.265
 MPEG1
 MPEG2
 MPEG4
 H.264
 VC-1
 WMV
 3GP
 MOV
 MKV
 VOB
 M4V
 3G2
 M-JPEG
 H.263
 AVCHD
 XVID
 MTS
 H.265
MPEG1 MPEG2
MPEG4 H.264
VC-1 WMV
3GP MOV
MKV VOB
M4V 3G2
M-JPEG H.263
AVCHD XVID
MTS H.265
 MPEG1
 MPEG2
 MPEG4
 H.264
 VC-1
 WMV
 3GP
 MOV
 MKV
 VOB
 M4V
 3G2
 M-JPEG
 H.263
 AVCHD
 XVID
 MTS
 H.265
RMS Rated Power 6W
BEST
2W 3W 16W
Built-In Speaker 2
BEST
1 1 1
 
 
 
Display Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Display Diagonal Unknown - Click to provide data Unknown - Click to provide data 14.96" Unknown - Click to provide data
 
 
 
Power Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Power Consumption (standby) Unknown - Click to provide data 0.5W Unknown - Click to provide data 0.5W
Power Consumption (typical) 90W 65W Unknown - Click to provide data 315W
BEST
 
 
 
Battery Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Maximum Battery Life Unknown - Click to provide data 1.5h 2h
BEST
Unknown - Click to provide data
Battery Capacity Unknown - Click to provide data 12,000mAh 2,000mAh
BEST
Unknown - Click to provide data
 
 
 
Operational Conditions Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Storage Relative Humidity (H-H) Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Operating Relative Humidity (H-H) Unknown - Click to provide data
Storage Temperature (T-T) Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Operating Temperature (T-T) Unknown - Click to provide data
 
 
 
Certificates Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Certification Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
 
 
 
Weight & Dimensions Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Package Weight Unknown - Click to provide data 1.8kg 1.1kg
BEST
4.6kg
Package Height Unknown - Click to provide data 80mm 150.11mm 380mm
Package Depth Unknown - Click to provide data 255mm 104.9mm 165mm
Package Width Unknown - Click to provide data 298mm 150.11mm 520mm
Weight 510g 750g 351g 2.8kg
BEST
Height 41mm 43mm 115.06mm 109mm
Depth 116mm 131.2mm 32mm 231mm
Width 189mm 153.5mm 115.06mm 362mm
 
 
 
Packaging Content Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Cables Included
AC MHL
HDMI
 AC
 MHL
 HDMI
AC MHL
HDMI
 AC
 MHL
 HDMI
AC MHL
HDMI
 AC
 MHL
 HDMI
AC MHL
HDMI
 AC
 MHL
 HDMI
 
 
 
Other Features Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Resolution
1280 x 720 1280
720
 1280 x 720
 1280
 720
1280 x 720 1280
720
 1280 x 720
 1280
 720
1280 x 720 1280
720
 1280 x 720
 1280
 720
1280 x 720 1280
720
 1280 x 720
 1280
 720
Package Dimensions (WxDxH) Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data
Panel Brightness Unknown - Click to provide data Unknown - Click to provide data 350 Cd/m² Unknown - Click to provide data
USB Port Unknown - Click to provide data Unknown - Click to provide data 1 Unknown - Click to provide data
Weight (without Accesories) Unknown - Click to provide data Unknown - Click to provide data 351g Unknown - Click to provide data
 
 
 
Technical Details Acer K137 Asus P3B Philips PPX4935 Viewsonic PJD7830HDL
Micro-USB Port Unknown - Click to provide data Unknown - Click to provide data Unknown - Click to provide data

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