Compare the Best External Hard DrivesAugust 2020

External hard drives are portable and used to backup files and data from your computer, so they’re safeguarded in case of accident or for retrieval at a later date. While Cloud-based backups are being used more and more for backups, external hard drives still have several important benefits compared to online backups:

Capacity

The main important consideration when choosing an external hard drive is the capacity. This Is a measure of how much data the drive can hold, and is measured in gigabytes (Gb) or terrabytes (Tb) . A gigabyte is 1000 megabytes, and a terabyte is 1000 gigabytes. Our drives range from relatively small portable 120gig drives to enormous 5Tb drives, which can safely hold all the data from multiple machines at once. Generally speaking the higher the capacity the better, but it does depend on what you’re going to be backing up. If you only use your computer to store documents, low-res photos and the like, a 2-500 gig drive should be enough. On the other hand, large capacity drives are useful for storing RAW photos, video editing or Photoshop files.

Size & Portability

Hand in hand with the capacity of the drive is its size. Generally speaking, the larger the capacity of a drive, the bigger it is. Small-capacity drives are extremely portable, being no larger than a mobile phone, so can be transported very easily. On the other end of the scale, the very large capacity drives are not meant to be portable, and usually sit in or under your desk as a safe deposit for all your data. Portability and weight will only become a real issue when choosing the very high-capacity drives, but it is worth paying attention to if you plan on transporting the drive frequently.

Read/Write Speeds

Read & write speeds measure how quickly data can be written from & to the external hard drive. This is measures in bytes per second - the higher the speed, the faster large files (such as movies) will be transferred onto or from the drive. The read-write speeds are also affected by the USB version supported - USB 3.0 supported drives allow far higher transfer rates than USB 2 drives, so it is worth seeking out the newest drive you can for the fastest data transfer speeds.

Power

On the subject of USBs, external hard drives are powered by 2 main methods: via USB or externally power lead. Smaller drives will be powered via USB - this means that the same lead that transfers the data also powers the device. This means no battery, no extra leads, and they are far more portable. Larger drives may be so big and powerful that USB alone can’t provide enough power - in which case they may need an external power connection to properly function. This means that extra consideration has to be made for a spare power socket and the required leads - making them less use when on the go.

Extras

Finally, there are a wealth of extras that can be found in more advanced models of external hard drives. Some of these may only be useful in specific situations, and you will usually pay more for them, but the utility may well be worth the extra cost. Some examples of extra features include:

External Hard Drive Prices

In total we found 139 external hard disk ranging from $40 to $780. A new external hard drive costs on average $184 and 80% of external hard disk are priced between $75 and $349. The LaCie Rugged Mini - 500GB is the cheapest external hard drive at only $40, and G-Technology G-Raid - 12Tb is the most expensive at $780.

External Hard Drive Brands - Price Range

IoSafe external harddisks start at $413 and their most expensive external hard drive costs $702. The average price of ioSafe external harddisks is $519 which is the highest average price of all external hard drive brands.

The average price of DataLocker external hard drives is $469 which is the second highest average price of all external hard drive brands. DataLocker external hard drives start at $394 and their most expensive external hard drive costs $562.

The average price of OWC external hard drive is $311 which is the third highest average price of all external hard drive brands. OWC external hard drive range in price from $155 to $500.

External Hard Drive Brands - Average Ratings

We have analysed 150 expert reviews and 1,650 user reviews for external hard disk and used this data to determine the average rating for each brand of external hard drive. The top three external hard drive brands are Western Digital, Seagate and Buffalo. Western Digital has an average rating of 90%, Seagate has an average rating of 84% and Buffalo has an average rating of 75%.

Biggest External Hard Drive Retailers

We found 56 current offers for external harddisks from Adorama making it the biggest external hard drive retailer. That is slightly bigger than the second biggest retailer, Overstock for whom we found 50 current offers for external harddisks. The third biggest retailer is Target with 1 current external hard drive offers.

When Are Most New External Hard Drives Released?

The most common period for new external harddisk to be released in is between June and July. That means that most of the latest external hard drive technology was released in within the last 3 months, and now is good time to buy. Last year most new external hard drive were released in July, with seven new external hard drive released that month. In June 2018, 59 new external hard drives were released making it the biggest month that year for new external hard drive releases. April was the biggest month in 2017 for new external hard disk, with 28 new external hard disk released that month.

How Fast Do External Hard Drive Prices Drop After Release?

New external hard disk drives drop in price by an average of 1% in the first 6 months after they were first released.

If you are prepared to wait then you could save an average of $3 on a typical $184 new external hard drive by waiting 6 months before buying.

Weights

'Weight' denotes the weight of the external hard drive, measured in grams (g).

Comparing all external harddisk, the weights range from 41g to 11.4kg. The weights of the majority of external hard drives range from 0g to 300g. The ioSafe SoloPRO - 3Tb, which is priced at $701.99, has the heaviest weight and is a 6.8kg external hard drive. The external hard drive with the lightest weight is the LaCie Rugged Triple - 1Tb, which is a 100g external hard drive and can be purchased for $149.99.

USB Powered

Whether the hard drive is powered by USB or not.

The vast majority of the 800 new external hard disk drives currently listed on Kagoo are USB powered external hard drive. 666 out of 800 are USB powered external hard drive.

Hard Drive Capacities

'Hard Drive Capacity' denotes how much data the hard drive can hold, measured in gigabytes (GB).

Across the range of external hard disk drives, the hard drive capacities range from 1GB to 64TB. The hard drive capacities of most external hard drive range from 0GB to 1.5TB. The external hard drive with the biggest hard drive capacity is the Western Digital My Book Duo - 16Tb, which is a 16TB external hard drive and is priced at $349.00. The external hard drive with the smallest hard drive capacity is the Western Digital WD My Passport Wireless - 1TB, which is a 1GB external hard drive and currently retails for $164.27.

Which Are the Cheapest Retailers for External Hard Drive?

The chart below helps you decide which retailer is normally cheapest for buying external hard disks. For each retailer it shows the total number of external hard disks where they currently have a market leading price. The chart below helps you decide which retailer is normally cheapest for buying external hard disk drive. For each retailer we took all of their prices and looked at what proportion of those prices where the cheapest on the market. The cheapest retailer that we found was Overstock. 44 of their external hard drive prices were the cheapest that could be found anywhere.

Proportion of External Hard Disks for Which Each Retailer is Cheapest?

Assessing how cheap each retailer is for external hard drives by counting the number of cheapest prices for that retailer, makes the retailers that offer the greatest number of external hard drive prices more likely to offer the greatest number of cheapest prices. The chart below considers the proportion of each retailer's external hard drive prices that are the cheapest compared to other retailers. The cheapest retailer that we found using this approach was Overstock. 88% of their external hard drive prices were the cheapest that could be found anywhere.