Acer K138ST vs Philips HDP1690

(3)
Acer K138ST
Philips HDP1690

Top Prices

Newegg UK
MacMall
Delivery unknown
In stock
pricebreak-deals
Delivery unknown
In stock, only 2 left!
Best Buy
FREE Standard delivery
In stock
BrandsMart USA
Out of stock

Reasons For

2 Reasons For
$582 cheaper
The Acer K138ST is $582 cheaper than the Philips HDP1690.
Available from 4 shops
A greater number of retailers increases the price competition amongst retailers for this projector and also increases the chances of the product remaining in stock.
5 Reasons For
10h longer lamp service life Edit
The Philips HDP1690 has a lamp service life of 30,000hh, but the Acer K138ST is only a 20,000hh lamp service life projector (10h shorter).
Two more USB 2.0 ports Edit
The Philips HDP1690 has three USB 2.0 ports, however the Acer K138ST only has one USB 2.0 port.
Three HDMI ports Edit
The Philips HDP1690 has three HDMI ports, however the Acer K138ST only has one HDMI port.
Quieter noise level Edit
The Philips HDP1690 is a 25dBdB noise level projector. That's 8dB quieter than the Acer K138ST (25dBdB). Read more

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.

Significantly better user reviews
The average user review score of the Philips HDP1690 is 73% based on 3 reviews, whereas the average rating of the Acer K138ST is 20% (based on 1 review).

Reasons Against

6 Reasons Against
50% shorter lamp service life Edit
The Acer K138ST is a 20,000hh lamp service life projector. That's 10h shorter than the Philips HDP1690 (30,000hh).
Only one USB 2.0 port Edit
The Acer K138ST has one USB 2.0 port, however the Philips HDP1690 only has three USB 2.0 ports.
Two less HDMI ports Edit
The Acer K138ST has one HDMI port, however the Philips HDP1690 only has three HDMI ports.
8dB louder noise level Edit
The Acer K138ST has a noise level of 33dBdB, whereas the Philips HDP1690 is a 25dBdB noise level projector (8dB quieter). Read more

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.

Over one year older
The Acer K138ST is older than the Philips HDP1690 by 14 months.
Significantly Lower user review Score
The average user rating of the Acer K138ST is only 20%, whereas the average user rating of the Philips HDP1690 is 73% (based on 3 reviews).
2 Reasons Against
More expensive by $582
The Philips HDP1690 is $582 more expensive than the Acer K138ST.
Fewer sellers
The Philips HDP1690 is only stocked by 2 retailers, but the Acer K138ST is stocked by 6 sellers. Read more
The fewer the number of shops that stock the product, the lower the competition amongst shops to keep prices low.

Average Expert Rating

No reviews found

Average User Rating

Date Released

19 months Ago 6 months Ago

Projector

Contrast Ratio
 100000:1
 100000:1
Native Projector Resolution
 WXGA (1280x800)
 WXGA (1280x800)
Projector Brightness
800 ANSI lumens Unknown - Click to provide data
Maximum Digital Resolution
 1920 x 1080
BEST
 1920 x 1080
Vertical Keystone Correction
-20 - 20 Unknown - Click to provide data
Minimum Vertical Synchronization
0.05kHz Unknown - Click to provide data
Maximum Horizontal Synchronization
100kHz Unknown - Click to provide data
Maximum Vertical Synchronization
0.12kHz Unknown - Click to provide data
Minimum Horizontal Synchronization
30kHz Unknown - Click to provide data
Number of Colours
1,070M Unknown - Click to provide data
Projection Distance
0.4 - 1.7 0.1 - 0.44
Supported Aspect Ratio
 16:10
 16:9
 4:3
 16:10
 16:9
 4:3
Compatible Screen Size
25 - 100 50 - 100
Projection Technology
 DLP
 DLP
Supported Number of Colours Display
 1.073 billion colours
 1.073 billion colours

Lamps

Lamp
1 1
Service Life of Lamp in Economic Mode
30,000h Unknown - Click to provide data
Lamp Type
 LED
 LED
Lamp Service Life
20,000h 30,000h
BEST

Lens System

Optical Zoom
1x Unknown - Click to provide data
Throw Ratio
 0.8:1
 0.8:1
Digital Zoom
1.7x Unknown - Click to provide data
Focus Mode
 Manual
 Manual

Video

Graphics Resolution
 1920 x 1080 (HD 1080)
BEST
 1920 x 1080 (HD 1080)
Analog Signal Format System
 PAL
 SECAM
 NTSC
 PAL
 SECAM
 NTSC
Colour Mode in 3D
 Dynamic
 Cinema
 Dynamic
 Cinema

Ports & Interfaces

Headphone Output
Unknown - Click to provide data 1
Composite Video in Port
Unknown - Click to provide data 1
USB 2.0 Port
1 3
BEST
Ethernet LAN (RJ-45) Port
Unknown - Click to provide data 1
HDMI Port
1 3
BEST
VGA (D-Sub) Port
1 1
HDMI Port
 Full-size
 Full-size

Networking

WiFi Standard
 IEEE 802.11b
 IEEE 802.11g
 IEEE 802.11n
 IEEE 802.11b
 IEEE 802.11g
 IEEE 802.11n

Storage

Memory Card
 SD
 SD
Internal Storage Capacity
Unknown - Click to provide data 4GB

Performance

Noise Level
33dB 25dB
BEST
Noise Level in Economy Mode
29dB Unknown - Click to provide data
Vertical Scan Range
50 - 120 Unknown - Click to provide data
Installed Operating System
Unknown - Click to provide data Android
Operating System Version
Unknown - Click to provide data 4.2

Multimedia

Supported Audio Format
Unknown - Click to provide data MP3,WAV
Image Format
 JPG
 PNG
 GIF
 BMP
 JPG
 PNG
 GIF
 BMP
BEST
Video Format
 MP4
 AVI
 FLV
 3GP
 MOV
 MKV
 M2TS
 TS
 M2T
 MP4
 AVI
 FLV
 3GP
 MOV
 MKV
 M2TS
 TS
 M2T
BEST
RMS Rated Power
3W
BEST
26W
Built-In Speaker
2 2

Design

Form Factor
 Portable
 Desktop
 Portable
 Desktop
Colour
 White
 Black
 White
 Black
Product Type
 Desktop projector
 Desktop projector

Power

Power Source
 AC
 AC
Typical Power Consumption
80W Unknown - Click to provide data
Power Consumption in Economy Mode
38W Unknown - Click to provide data
Input Frequency
 47/63
 47/63
Power Consumption During PowerSave
38W Unknown - Click to provide data
AC Adapter Frequency
 47/63
 47/63
AC Adapter Input Voltage
100 - 240 90 - 264
AC Input Frequency
 47/63
 47/63
AC Input Voltage
 100 - 240
 100
 90 - 264
 100 - 240
 100
 90 - 264

Operational Conditions

Relative Humidity Storage Range
Unknown - Click to provide data 15 - 85
Relative Humidity Operational Range
0 - 80 15 - 85
Storage Temperature Range
Unknown - Click to provide data 0 - 45
Operating Temperature Range
5 - 40 5 - 35

Weight & Dimensions

Packaging Height
Unknown - Click to provide data 277mm
Packaging Depth
Unknown - Click to provide data 389mm
Packaging Width
Unknown - Click to provide data 446mm
Weight
750g Unknown - Click to provide data
Height
Unknown - Click to provide data 148mm
Depth
Unknown - Click to provide data 287mm
Width
Unknown - Click to provide data 339mm

Packaging Content

Remote Control Type
 IR
 IR
Cable Included
 AC
 HDMI
 AC
 HDMI

Other Features

MP4 Player Integrated
Unknown - Click to provide data 1
Resolution
Unknown - Click to provide data 1280 x 800
Audio Input
1 Unknown - Click to provide data
Package Dimensions
Unknown - Click to provide data 339 x 287 x 148,446 x 389 x 277

Technical Details

Music Streaming Via Bluetooth
Unknown - Click to provide data 1
RMS Output Power (max)
Unknown - Click to provide data 26
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