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Home External hard drives High Capacity Hard Drives

Compare the Best High Capacity Hard DrivesApril 2019

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What is the Kagoo Score? Our unique external hard drives rating which considers: 2,300 UK prices • 3,700 expert & user reviews • 1,000 product comparisons • 43 industry awards • Score breakdown
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Save Up To £80 on External Hard Drives View Today's Best Deals
Rank
Kagoo Score
Average Review Rating
Price
USB Powered
Weight
Hard Drive Capacity
Available Colours
Release Date

73

 Compare  Shortlisted
ioSafe logo

ioSafe SoloPRO ‑ 3Tb

£446.35

Info
6.8kg
Info
3TB
Info
Info
Apr 2015

81

 Compare  Shortlisted
Toshiba logo

Toshiba Canvio ‑ 3Tb

£98.98

Info
210g
Info
3TB
Info
Info
Feb 2018

73

 Compare  Shortlisted
G-Technology logo

G‑Technology G‑DRIVE ‑ 4Tb

£121.94

Info
1.3kg
Info
4TB
Info
Info
Sep 2017

84

 Compare  Shortlisted
Western Digital logo

Western Digital My Book ‑ 3Tb

£80.80

Info
960g
Info
3TB
Info
Info
Oct 2016

84

 Compare  Shortlisted
Western Digital logo

Western Digital My Book ‑ 4Tb

£86.78

Info
1kg
Info
4TB
Info
Info
Oct 2016

73

 Compare  Shortlisted
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Verbatim Store n Go ‑ 2Tb

£71.12

Info
150g
Info
2TB
Info
Info
Jan 2015

76

 Compare  Shortlisted
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Western Digital My Book Duo ‑ 8Tb

£264.63

Info
2.2kg
Info
8TB
Info
Info
Sep 2017

83

 Compare  Shortlisted
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Western Digital My Book ‑ 6Tb

£101.27

Info
1.1kg
Info
6TB
Info
Info
Oct 2016

67

 Compare  Shortlisted
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Toshiba Canvio Connect II ‑ 3Tb

£105.51

Info
230g
Info
3TB
Info
Info
Apr 2015

75

 Compare  Shortlisted
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Toshiba Canvio Basics USB 3.0 ‑ 3Tb

£83.57

Info
230g
Info
3TB
Info
Info
Mar 2015

75

 Compare  Shortlisted
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Seagate Backup Plus Mac 4TB

£234.73

Info
860g
Info
4TB
Info
Info
Apr 2015

84

 Compare  Shortlisted
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Seagate STEB3000200 ‑ 3TB

£70.53

Info
950g
Info
3TB
Info
Info
Mar 2015

80

 Compare  Shortlisted
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Seagate STEB5000200 ‑ 5TB

£110.97

Info
950g
Info
5TB
Info
Info
Mar 2015

85

 Compare  Shortlisted
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Seagate Expansion Desktop ‑ 4TB

£91.72

Info
950g
Info
4TB
Info
Info
Mar 2013

81

 Compare  Shortlisted
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Seagate Backup Plus 8TB

£189.00

Info
860g
Info
8TB
Info
Info
Jan 2015

83

 Compare  Shortlisted
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Western Digital My Passport Ultra ‑ 3Tb

£113.00

Info
230g
Info
3TB
Info
Info
May 2017

85

 Compare  Shortlisted
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Seagate Backup Plus ‑ 6Tb

£115.78

Info
860g
Info
6TB
Info
Info
Jan 2015

76

 Compare  Shortlisted
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Toshiba Canvio ‑ 4Tb

£85.99

Info
1kg
Info
4TB
Info
Info
May 2016

79

 Compare  Shortlisted
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Seagate Backup Plus STDR4000200 ‑ 4TB

£108.52

Info
246g
Info
4TB
Info
Info
Jul 2015

64

 Compare  Shortlisted
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Transcend StoreJet 35T3 ‑ 8TB

£179.20

Info
1kg
Info
8TB
Info
Info
Jul 2015

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Today's Best External Hard Drive Deals

£6 Price Drop
1TB
5,000 MBIT/S
DATA TRANSFER
149G
£6 Price Drop
2TB
5,000 MBIT/S
DATA TRANSFER
295G
£3 Price Drop
1TB
5,000 MBIT/S
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240G
£25 Price Drop
8TB
950G
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Trending External Hard Drive Comparisons

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Western Digital
My Book - 8TB
£212.98
Lighter
VS
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Seagate
Backup Plus Hub - 8TB
£155.88
£57 cheaper
Better Kagoo
Score
Better brand
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Toshiba
Canvio Basics - 2Tb
£56.99
£8 cheaper
4g lighter
VS
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Western Digital
WD Elements - 2TB
£64.77
Better Kagoo
Score
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Toshiba
Canvio Basics - 1TB
£39.99
Better Kagoo
Score
Newer by three
years
VS
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Maxtor
M3 - 1TB
£38.39
A lot lighter
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Toshiba
Canvio Basics - 2Tb
£56.99
Newer by one
month
VS
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Maxtor
M3 - 2TB
£52.50
£4 cheaper
A lot lighter
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Western Digital
My Passport - 4Tb
£86.58
£7 cheaper
Better Kagoo
Score
Better brand
VS
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Seagate
Backup Plus Portable - 4Tb
£93.51
Newer by four
months
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Seagate
Backup Plus Slim - 1TB
£45.35
£23 cheaper
Better Kagoo
Score
76g lighter
VS
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Transcend
StoreJet 25M3 - 2Tb
£68.74
Three years
newer
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ADATA
HD720 - 1Tb
£70.20
Lighter
VS
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A-DATA
HD710 Pro - 1Tb
£48.00
£22 cheaper
Better Kagoo
Score
Newer by 20
months
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Maxtor
M3 - 2TB
£52.50
£8 cheaper
A bit lighter
VS
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Seagate
Expansion - 2TB
£60.88
Better Kagoo
Score
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Maxtor
M3 - 1TB
£38.39
£22 cheaper
19g lighter
VS
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Seagate
Expansion - 2TB
£60.88
Better Kagoo
Score
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Maxtor
M3 - 4TB
£87.75
£6 cheaper
5% lighter
VS
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Seagate
Backup Plus Portable - 4Tb
£93.51
Better Kagoo
Score
22 months newer
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Seagate
Backup Plus Hub - 4TB
£84.88
Better Kagoo
Score
Newer by 22
months
Better brand
VS
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Western Digital
WD Elements Desktop - 4TB
£78.53
£6 cheaper
Lighter
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Toshiba
Canvio Basics - 1TB
£39.99
Newer by 17
months
VS
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Western Digital
WD Elements Portable - 1Tb
£41.96
Better Kagoo
Score
100g lighter
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Toshiba
Canvio Basics - 1TB
£39.99
£5 cheaper
Newer by four
years
VS
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Seagate
Backup Plus Slim - 1TB
£45.35
Better Kagoo
Score
40% lighter
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Western Digital
My Passport - 4Tb
£86.58
£17 cheaper
Significantly
lighter
Better Kagoo
Score
VS
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LaCie
Porsche Design - 4TB
£103.97
Four months
newer
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Toshiba
Canvio Basics - 1TB
£39.99
£10 cheaper
Three months
newer
VS
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Seagate
Maxtor M3 - 1Tb
£49.99
Better Kagoo
Score
Lighter
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Western Digital
WD Elements - 2TB
£64.77
Better brand
VS
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Seagate
Expansion - 2TB
£60.88
£4 cheaper
Better Kagoo
Score
64g lighter
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Western Digital
WD Elements Desktop - 3tb
£81.50
£11 cheaper
5% lighter
VS
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Seagate
Expansion USB 3.0 - 4TB
£92.72
Better Kagoo
Score
Better brand
Newer by three
months
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Seagate
Expansion Portable 1TB
£44.98
Better Kagoo
Score
66g lighter
VS
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Maxtor
Maxtor M3
£37.36
£8 cheaper
Newer by 13
months
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Transcend
StoreJet 25C3 - 1Tb
£56.70
£14 cheaper
Better Kagoo
Score
40% lighter
VS
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ADATA
HD720 - 1Tb
£70.20
More popular
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Western Digital
My Passport - 4Tb
£86.58
Newer by 18
months
Better Kagoo
Score
VS
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Maxtor
M3 - 2TB
£52.50
£34 cheaper
Lighter
All External Hard Drive Comparisons

Frequently Asked Questions (FAQs)

QHow is the capacity of hard drives measures?
AModern external hard drives are measured in gigabytes (Gb), which equates to approximately 1,000 megabytes (Mb). A single mp3 takes up about 3-4Mb, while a single picture takes 1-2Mb. Larger capacity drives are measured in terrbytes (Tb), where 1Tb = 1,000Gb.
QWhat security is available for external hard drives?
AMost hard drives lack any serious security options - however some have password protection to only allow authorised access. This can be a software password, or an actual physical keypad on the drive itself. Heavier degrees of security are available - including biometric fingerprint scanners, which will only unlock the data to someone with authorised fingerprints.
QHow are external hard drives powered?
AMost external hard drives are powered via USB, meaning they can be plugged directly into the computer and used from there. However some very large/powerful drives need too much power for USB alone, and will also require am external power supply to function properly.

External Hard Drive Buying Guide

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:

  • Peace of mind: many people don’t 100% trust the Cloud yet, and having their data stored in some unknown, invisible server somewhere leaves them worried about the long-term safety of their data. External hard drives offer tangible, physical objects to safely backup your files, without having to rely on 3rd-party companies.
  • Backing up and restoring files is far faster, especially with newer models that use USB 3 for transferring data.
  • Data can be retrieved without needing a net connection, making them useful if travelling or if you find yourself somewhere without a solid net connection.
  • High-level security options - such as fingerprint scanners, palm vein scanners and number pads - offer vastly increased security and peace of mind when storing very important files. Moreover, there is the increased security of being able to physically lock away the hard drives away from prying eyes.
  • Finally, USB hard drives are still one of the best methods for quickly moving very large files between different computers. It is frequently easier (as long as the computers aren’t too far apart) to simply transfer the file to the drive, plug it in to the second computer, and transfer rather than having to deal with slower upload/download speeds from services such as Dropbox.
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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.

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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:

  • Integrated card reader: a built in card reader in the drive allows the device to also read/write to SD cards.
  • Fingerprint scanner: an optical fingerprint scanner drastically increases the security of your device, by meaning only specific fingerprints can unlock the device and access the files. For even greater security, a ‘palm vein’ scanner detects the blood pumping through the unique arrangement of veins in your hand, meaning that the scanner cannot be fooled by severed fingers - the owner has to be there in person and alive.
  • Ruggedized outer layer: for those who frequently take drives outdoors or in harsh conditions, a hefty rubber or metal basing protects the device from damage, keeping your files intact through even the worst conditions.

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