Buying Guides · Updated 2026-10-16

Best Upgradeable Gaming Laptops in the UK (2026)

The GPU and CPU are fixed forever — but RAM and storage do not have to be. Upgradeable gaming laptops let you buy sensibly now and expand later, extending the machine's life by years.

These are the most upgradeable gaming laptops for UK buyers in 2026.

Best Upgradeable Gaming Laptops in the UK (2026)

Illustrative stock photo (Pexels / Unsplash)

The upgradeability landscape in 2026

Upgradeability in 2026 is a spectrum. At one end: full-size 16-inch machines (Legion Pro 7/5i, Strix G16, Raider, Vector) with two SODIMM slots and two M.2 slots — buy 16GB/1TB now, add more later. At the other: thin models (Zephyrus G14/G16, Blade 14/16) with soldered RAM and sometimes a single SSD slot — what you buy is what you keep.

The trend is towards soldered RAM in thin machines (for LPDDR5X efficiency), while SSDs remain upgradeable almost everywhere. The practical rule: if you buy thin, max the RAM at purchase; if you buy full-size, buy the base RAM and upgrade it yourself for less.

Lenovo Legion Pro: the upgrade-friendly pick

The Legion Pro 7 and Pro 5i are upgradeability champions: two SODIMM slots (up to 64GB), two M.2 slots, and Lenovo's service manual makes access straightforward. Typical UK prices: £1,300–£2,700.

Lenovo's approach is buyer-friendly — upgrading is expected, not punished. Buy the base 16GB configuration and add RAM yourself: you will save significantly versus Lenovo's upgrade pricing.

ASUS Strix G16 and MSI Raider/Vector

The ROG Strix G16 and MSI Raider/Vector lines offer similar upgradeability: dual SODIMM and dual M.2 slots behind easily-removed bottom panels. Typical UK prices: £1,100–£3,400.

MSI is particularly upgrade-friendly — the Vector and Raider are designed with access in mind. ASUS's Strix G16 is straightforward too, though the exact slot configuration varies by SKU — verify before buying RAM.

The thin trade-off: soldered RAM

The thin premium machines — Zephyrus G14/G16, Razer Blade 14/16 — trade upgradeability for thinness: soldered LPDDR5X RAM (fast and efficient, but fixed), usually one accessible M.2 slot. Buy these with the RAM you will need in four years, not the RAM you need today.

This is not a flaw — it is the price of portability. But it changes the buying calculus: the 16GB thin machine is a worse long-term buy than the 16GB full-size machine, because only one of them can grow.

The service manual: your upgrade bible

The service manual is the upgrader's bible: manufacturer-provided PDFs detailing every screw, cable, and component — the authorised disassembly guide. Finding them: Lenovo's support site (the best — detailed manuals for every Legion/LOQ); Dell's support site (excellent — Alienware manuals are thorough); ASUS's site (adequate — ROG manuals exist but vary); HP's site (functional — Omen manuals available); MSI's site (basic — the community fills the gaps).

Using the manual: the FRU list (field-replaceable units — what you are allowed to touch); the screw maps (positions, sizes, types — photograph anyway); the cable routing (the fragile bit — follow exactly); and the torque specs (for the meticulous — overtightening cracks boards). The manual transforms upgrading from bravery to procedure. Download it before buying the RAM — the slot count, supported capacities, and access method are all specified. The upgrader who reads the manual succeeds; the one who wings it strips screws.

What else is upgradeable: the full list

Beyond RAM and SSD, the upgradeable: Wi-Fi cards (M.2 2230 slots — Intel AX210/BE200 upgrades for £15–£30 — the connectivity refresh); thermal paste (repasting at year 3–4 — the maintenance upgrade); thermal pads (replacement when crumbled — the overlooked refresh); and batteries (internal but replaceable — £50–£100 at year 4–5 — the second life).

The not-upgradeable (accept it): CPU and GPU (soldered — forever); soldered RAM (LPDDR5X — the thin tax); displays (panel swaps are theoretically possible, practically insane); and motherboards (the laptop is the motherboard). The upgrade philosophy: maximise what is accessible (RAM, SSD, Wi-Fi, paste, battery — the five refresh points); accept what is fixed (the silicon is the laptop's identity). A fully-refreshed 4-year-old laptop (32GB RAM, 2TB SSD, new paste, new battery, Wi-Fi 7 card) performs like a new mid-range machine — the upgrade path is the longevity path.

Planning upgrades: the 4-year roadmap

The 4-year upgrade roadmap: day one (buy base RAM/SSD on upgradeable machines — the manufacturer's premiums are the worst value); year 1 (add the second SSD when storage fills — prices fall, needs clarify); year 2 (RAM to 32GB if not already — the multitasking sweet spot; Wi-Fi card if the original is troublesome); year 3 (repaste — the thermal refresh; thermal pads if needed; assess the battery); year 4 (battery replacement if portable use matters; final SSD expansion — the machine's last refresh).

The roadmap economics: £150–£250 in upgrades over 4 years (RAM, SSD, paste, battery) keeps a £1,500 machine current — versus £1,500 for replacement. The upgraded machine at year 4 outperforms the year's £1,000 new machines — the upgrade path beats the replacement cycle on value. Plan the upgrades at purchase (verify the slots, the manual, the compatibility); execute them on schedule (the calendar reminder). The upgradeable laptop is the gift that keeps giving — if you give it.

The first upgrade: the SSD win

The upgradeable buyer's first upgrade is the SSD: the second slot (the empty — the waiting — the filled); the 2TB (the £100 — the Gen4 — the sweet); and the cloning (the Macrium — the free — the migrated). The 512GB to the 2.5TB — the £100 transformation. The SSD is the easiest win — the 15 minutes, the screwdriver, the space.

The SSD method: the compatibility (the Gen4 — the 2280 — the verified); the heatsink (the transferred — the remembered — the cooled); and the old (the enclosure — the £15 — the repurposed). The first upgrade is the SSD — the space, the speed, the simplicity. The upgradeable laptop's promise begins with the storage.

The 4-year refresh: the upgrade endgame

The upgradeable buyer's endgame is the 4-year refresh: the RAM to 32GB (the £50 — the year 2 — the multitasking); the repaste (the year 3 — the temperatures — the renewed); and the battery (the year 4 — the £60 — the portable again). The £160 total keeps the £1,500 machine current — the 4-year-old upgraded beats the new £1,000. The upgrade path is the value path.

The refresh method: the scheduled (the calendar — the reminded — the done); the documented (the manual — the followed — the safe); and the enjoyed (the renewed — the fast — the satisfying). The upgradeable laptop is the gift that keeps giving — the 4-year refresh is the giving. The £160 is the 4 years — the cheapest computing.

How to upgrade smartly

Upgrade strategy: buy base RAM (16GB) on upgradeable machines and add a matching stick yourself — it is a 10-minute job with a screwdriver. Buy storage base (512GB–1TB) and add a second SSD when you need it; SSD prices fall over time.

UK buyers: RAM and SSD upgrades do not void your warranty provided you do not cause damage. Keep original parts, ground yourself against static, and follow the manufacturer's service manual. Check the live price of upgrade components — they are often far cheaper than manufacturer upgrade options.

Frequently Asked Questions

Which gaming laptops are most upgradeable?

The most upgradeable gaming laptops in 2026 are the full-size 16-inch models: Lenovo Legion Pro 7/5i, MSI Raider/Vector, ASUS ROG Strix G16 — all typically offer two SODIMM RAM slots and two M.2 SSD slots. Thin models (Zephyrus, Blade) increasingly use soldered RAM.

Is RAM soldered on modern gaming laptops?

Increasingly, yes — thin gaming laptops (Zephyrus G14/G16, Razer Blade) use soldered LPDDR5X for thinness and efficiency. Full-size models (Legion Pro, Strix G16, Raider) usually retain SODIMM slots. Check the spec sheet: "soldered" means no upgrades.

Can I add a second SSD?

Usually yes — a second M.2 slot is standard on 16-inch gaming laptops, and adding a 1–2TB SSD is one of the cheapest meaningful upgrades. Check the slot count and supported sizes before buying the drive.

Does upgrading void the warranty?

RAM and SSD upgrades do not void the warranty in the UK (the Consumer Rights Act protects you), provided you do not damage anything. Keep the original parts in case of a warranty claim.