How much laptop storage?
512GB suits most laptop buyers; 256GB works only with the cloud, and 1TB is for games and video. The 256GB to 512GB step costs £99.01 on a Lenovo IdeaPad.
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512GB is the right amount of laptop storage for most buyers in 2026; 256GB works only for a Chromebook or a laptop that keeps files in the cloud, and 1TB is for PC games, video editing and large photo libraries. Storage on most thin laptops cannot be added later, and the 256GB to 512GB step costs £99.01 on the same Lenovo IdeaPad on Amazon UK at the time of writing (October 2026).
The picks match Best laptop under £500 UK 2026 and Best student laptop UK 2026. Memory is a separate question, answered in Is 8GB RAM enough in 2026?
| Buyer | Storage to buy | Example |
|---|---|---|
| Chromebook, browser and cloud apps | 128GB to 256GB | Acer Chromebook Plus 514 (512GB), £414.00 |
| Windows laptop, Office and cloud photos | 512GB (256GB at a push) | Lenovo IdeaPad Slim 3 15 (512GB), £499 |
| Student keeping it through a degree | 512GB | Lenovo IdeaPad Slim 3 15, £499 |
| Mac for study, photos and Apple Intelligence | 512GB | MacBook Air 15-inch M5 (512GB), £1,349.97 |
| PC games, video editing, big photo library | 1TB | Acer Swift Go 14 (1TB), £899.98 |
| Laptop already full | Add 1TB externally | Samsung T7 Portable SSD 1TB, £184.00 |
How much storage do Windows 11 and macOS use?
Windows 11 needs at least 64GB to install, and Microsoft says its reserved storage for updates starts at about 7GB and grows with optional features and languages. Microsoft sets 256GB as the minimum for a Copilot+ PC. Apple says Apple Intelligence takes up to 14GB on Macs with an M3 or later and at least 12GB of memory, and up to 8GB on other Macs.
| Item | Storage | Source |
|---|---|---|
| Windows 11 (minimum to install) | 64GB | Microsoft |
| Windows reserved storage for updates | About 7GB to start, varies | Microsoft |
| Copilot+ PC | 256GB minimum | Microsoft |
| Apple Intelligence, M3 or later with 12GB+ memory | Up to 14GB | Apple |
| Apple Intelligence, other Macs | Up to 8GB | Apple |
| Chromebook Plus | 128GB minimum |
Those figures leave room on 256GB for documents and apps, but not for growth. Photos and video fill the rest: Apple's figures put 4K video at more than 10.5GB an hour, as covered in How much phone storage do I need?. A phone that syncs its camera roll to the laptop brings that library with it.
Chromebooks are the exception to the 512GB rule. ChromeOS keeps documents in Google Drive and runs most apps in the browser, so the 128GB floor Google sets for Chromebook Plus is workable, and every Google account includes 15GB of free storage. Budget buyers weighing the extra £99.01 against other upgrades should read How much should I spend on a laptop?
How much does more laptop storage cost?
Doubling from 256GB to 512GB costs about £100 in matched listings: £99.01 on the Lenovo IdeaPad Slim 3 15 Gen 10 on Amazon UK and £100 on the MacBook Neo at Apple UK, about 39p per extra gigabyte. Doubling from 512GB to 1TB costs £325.00 on the Apple MacBook Air 15-inch M5, about 63p per extra gigabyte.
| Laptop | Step | Prices | Extra | Premium | Where |
|---|---|---|---|---|---|
| Lenovo IdeaPad Slim 3 15 Gen 10 (Snapdragon X, 16GB) | 256GB to 512GB | £399.99 to £499.00 | £99.01 | 24.8% | Amazon UK |
| Apple MacBook Neo (8GB) | 256GB to 512GB | £699 to £799 | £100.00 | 14.3% | Apple UK; adds Touch ID |
| Apple MacBook Air 15-inch M5 (16GB) | 512GB to 1TB | £1,349.97 to £1,674.97 | £325.00 | 24.1% | Amazon UK |
Switching model is often cheaper than upgrading the same one. The Acer Swift Go 14 SFG14-64 ships with 1TB, 16GB and an OLED screen for £899.98, and the ASUS Zenbook A14 OLED UX3407NA has 1TB for £1,199, £150.97 less than the 512GB 15-inch MacBook Air.
The storage bought on day one is usually the storage kept. MacBook storage is soldered to the board, and Apple ties 1TB on the 13-inch MacBook Air M5 to the 10-core GPU chip, so the step also buys graphics. Many Windows laptops use a replaceable M.2 SSD, but swapping it means cloning the drive, so buying the right size at the start is cheaper in time and money. A laptop kept five years, as How long does a laptop last? recommends planning for, spreads a £99.01 storage step to under £20 a year.
Is cloud storage or an external SSD cheaper than a bigger SSD?
For 100GB, cloud storage is cheaper over three years than the £99.01 step to 512GB: Google One's 100GB plan costs £57.24, while iCloud+ at 200GB costs £107.64. For 1TB, an external SSD is cheapest. The Samsung T7 Portable SSD 1TB costs £184.00 on Amazon UK, £141.00 less than Apple's 512GB to 1TB step on the MacBook Air 15-inch M5.
| Option | Storage | Price | Cost over 3 years |
|---|---|---|---|
| Google One Basic | 100GB | £1.59 a month | £57.24 |
| iCloud+ | 200GB | £2.99 a month | £107.64 |
| Microsoft 365 Personal (OneDrive) | 1TB | £84.99 a year | £254.97 |
| Google One 2TB | 2TB | £7.99 a month | £287.64 |
| iCloud+ | 2TB | £8.99 a month | £323.64 |
| SanDisk Extreme Portable SSD | 1TB | £175.49 once | £175.49 |
| Samsung T7 Portable SSD | 1TB | £184.00 once | £184.00 |
Cloud storage depends on a connection and counts against a monthly plan forever; an external SSD is a one-off cost but has to be carried. Microsoft 365 Personal at £84.99 a year is the best value for Windows owners who also need Word and Excel.
Which laptop has the right amount of storage?
The Lenovo IdeaPad Slim 3 15 Gen 10 (Snapdragon X) is the laptop to buy for storage value, at £499 on Amazon UK at the time of writing (October 2026) with 512GB and 16GB of memory. Lenovo makes it a Copilot+ PC and rates it at up to 18.5 hours of video playback.
Lenovo IdeaPad Slim 3 15 Gen 10 (Snapdragon X) specifications
- Processor: Snapdragon X X1-26-100 (8 cores), 45 TOPS NPU
- Memory: 16 GB LPDDR5X
- Storage: 512 GB SSD
- Display: 15.3 inch IPS, 1920x1200
- Battery: up to 18.5 hours video playback (Lenovo)
- Weight: 1.55 kg
- Card reader: Yes
The memory card reader gives cheap extra space for photos, and two USB-A ports suit an external SSD. Windows on Arm cannot run games with kernel-level anti-cheat such as Valorant; gamers should buy 1TB on an x86 laptop.
Lenovo IdeaPad Slim 3 15 Gen 10 (Snapdragon X) - pros and cons
Where to buy
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At a glance
Radar · 0-100 scores
- IdeaPad Slim 3 15 Gen 10 (Snapdragon X, 16GB, 512GB)
- Chromebook Plus 514 CB514-5H
- Swift Go 14 AI SFG14-64
- Zenbook A14 OLED UX3407NA
Verdict
Buy 512GB: it covers Windows 11 or macOS, Office, photos and a few games for the life of the laptop, and the step from 256GB costs about £100. Buy 1TB only for games and video, or add a £184.00 external SSD later. The Lenovo IdeaPad Slim 3 15 Gen 10 (Snapdragon X) at £499 is the pick; the rest are in Best laptop under £500 UK 2026 and Best student laptop UK 2026.
Frequently asked questions
Is 256GB enough for a laptop?
256GB is enough for a Chromebook or a laptop used for a browser, Office and cloud-stored photos, but tight for Windows 11 kept four years or more. Microsoft sets 256GB as the minimum for a Copilot+ PC. On the Lenovo IdeaPad Slim 3 15 Gen 10 (Snapdragon X), the 512GB model costs £99.01 more than the 256GB model on Amazon UK in October 2026.
Is 512GB enough for a laptop in 2026?
Yes. 512GB is the right amount for most laptop buyers in 2026, including students keeping a laptop through a degree. It holds Windows 11 or macOS, Office, a photo library and a few games. The Lenovo IdeaPad Slim 3 15 Gen 10 (Snapdragon X) has 512GB and 16GB of memory for £499 on Amazon UK at the time of writing (October 2026).
Do I need 1TB of storage on a laptop?
Only for PC games, video editing or a large photo library kept on the laptop. On Amazon UK in October 2026, the 1TB Apple MacBook Air 15-inch M5 costs £325.00 more than the 512GB model, while a 1TB Samsung T7 Portable SSD costs £184.00. The Acer Swift Go 14 SFG14-64 ships with 1TB for £899.98.
How much storage does Windows 11 take?
Microsoft lists 64GB as the minimum storage for Windows 11 and says its reserved storage for updates starts at about 7GB, rising with optional features and languages. A Copilot+ PC needs at least 256GB under Microsoft's rules. Apple Intelligence takes up to 14GB on Macs with an M3 or later and at least 12GB of memory, and up to 8GB on other Macs.
Is cloud storage cheaper than a bigger laptop SSD?
For small amounts, yes. Three years of Google One's 100GB plan at £1.59 a month costs £57.24, less than the £99.01 step from 256GB to 512GB on the Lenovo IdeaPad Slim 3 15 Gen 10. For 1TB, Microsoft 365 Personal costs £254.97 over three years at £84.99 a year, and adds Word, Excel and Outlook.
Is 256GB enough on a MacBook?
For light use only. The 256GB Apple MacBook Neo costs £699 at Apple UK and the 512GB model £799, a £100 step that also adds Touch ID. Apple's storage needs grow with Apple Intelligence and photo libraries, and Mac storage cannot be upgraded. The Apple MacBook Air 15-inch M5 starts at 512GB for £1,349.97 on Amazon UK.