Introduction – Why a Fold‑able Face‑off Matters
The foldable market is heating up. Samsung’s latest flagship, the Galaxy Z Fold 8, landed in the spring, while Apple is rumored to unveil its own foldable later this year and Motorola’s Razr Fold is also slated for release. For UK consumers hunting the best contract‑ready device, the question is simple: does the new Z Fold 8 justify its premium over the already‑excellent Z Fold 5?
Android Police’s tech writer James Miller set out to answer that by putting the two phones through a side‑by‑side lab test. Below is a distilled version of his findings, re‑framed for readers who care about specs, real‑world performance and value.
Design & Build – Subtle Evolution
Both models retain Samsung’s signature book‑like form factor, but the Z Fold 8 refines a few key areas:
- Dimensions & Weight – The Fold 8 measures 158.2 × 128.1 × 6.4 mm and weighs 263 g, a hair lighter than the Fold 5’s 268 g thanks to a slimmer hinge housing.
- Materials – Samsung upgraded the outer frame to a titanium‑reinforced alloy, while the inner chassis still uses aluminum. The protective Gorilla Glass Victus 2 on the cover screen is unchanged, but the main inner display now features Corning’s latest Ultra‑Clear glass, offering better scratch resistance.
- Hinge – The most talked‑about change is the new Flex‑Lock hinge. Miller notes that the mechanism feels tighter and eliminates the faint “click” that some users reported on the Fold 5. In durability tests, the hinge survived 100,000 open‑close cycles without noticeable looseness.
Overall, the design tweaks are evolutionary rather than revolutionary, but they address the most common complaints from early adopters of the Fold 5.
Display – Brightness Wins the Day
Samsung’s foldables are renowned for their large, high‑resolution screens. Here’s how the two compare:
| Feature | Z Fold 5 | Z Fold 8 |
|---|---|---|
| Main display size | 7.6‑inch QXGA+ (2208 × 1768) | 7.6‑inch QXGA+ (2208 × 1768) |
| Cover display size | 6.2‑inch HD+ (2316 × 904) | 6.2‑inch HD+ (2316 × 904) |
| Refresh rate | 120 Hz adaptive | 120 Hz adaptive |
| Peak brightness (outdoor) | 900 nits | 1,200 nits |
| HDR support | HDR10+ | HDR10+ |
Miller’s outdoor tests under direct sunlight showed the Fold 8’s main screen remained legible at 1,200 nits, a 33 % jump over the Fold 5. The cover display’s brightness also increased modestly, making it easier to read notifications on the go.
Performance – Snapdragon 8 Gen 3 Takes the Lead
Both phones run Android 15 with Samsung’s One UI 7, but the chipset difference is stark:
- Z Fold 5 – Snapdragon 8 Gen 2 (4 nm) with an octa‑core CPU (1×3.2 GHz, 3×2.8 GHz, 4×2.0 GHz) and Adreno 730 GPU.
- Z Fold 8 – Snapdragon 8 Gen 3 (4 nm) with an octa‑core CPU (1×3.4 GHz, 3×3.0 GHz, 4×2.2 GHz) and Adreno 750 GPU.
In benchmark suites, the Fold 8 posted 20 % faster Geekbench 6 single‑core scores and 15 % higher multi‑core results. Real‑world app launch times for heavy apps like Adobe Photoshop and Microsoft Teams dropped by roughly 0.8 seconds on average.
Miller also ran a multi‑tasking test, opening five apps simultaneously (Chrome, Instagram, YouTube, Gmail, and a game). The Fold 8 kept frame rates above 55 fps on the main screen, whereas the Fold 5 dipped to the low‑40s, indicating smoother multitasking.
Battery Life – A Small but Noticeable Gain
Battery capacity increased from 4,500 mAh in the Fold 5 to 5,200 mAh in the Fold 8. Coupled with the more efficient Gen 3 chipset, the newer model delivered about 30 minutes more screen‑on time in mixed‑usage tests (web browsing, video streaming, and gaming).
Charging speeds remain identical: 45 W wired, 15 W wireless, and 4.5 W reverse wireless. Miller’s fast‑charge test showed the Fold 8 reaching 50 % in 22 minutes, just a few seconds quicker than the Fold 5.
Camera System – Incremental Improvements
Both devices share a triple‑camera array on the back: 50 MP main sensor, 12 MP ultra‑wide, and 10 MP telephoto (3× optical). The Fold 8 adds a new image‑signal processor (ISP) that improves low‑light performance and reduces ghosting in multi‑exposure shots.
In side‑by‑side photo tests, the Fold 8 produced 1‑stop better noise reduction at ISO 3200 and delivered sharper details on the ultra‑wide lens. Video recording capabilities are unchanged (8K 30 fps, 4K 60 fps), but the newer ISP enables real‑time HDR video without a noticeable lag.
Software Features – One UI Gets Smarter
Samsung’s One UI 7 introduces a few fold‑specific enhancements that were absent on the Fold 5:
- Multi‑Window Plus – Allows three apps to run simultaneously on the main screen, with a new drag‑and‑drop interface.
- Flex‑Mode AI – The software now detects when the device is partially folded and automatically suggests relevant actions (e.g., turning the cover screen into a viewfinder for the rear camera).
- Secure Folder 2.0 – Adds biometric‑protected app containers that work even when the device is folded, a feature praised by Miller for business users.
Pricing & Availability in the UK
The Z Fold 8 launched with a starting price of £1,399 on a 24‑month contract with major carriers (EE, Vodafone, Three). The Fold 5, when it debuted in 2024, started at £1,299. The £100 premium reflects the brighter display, larger battery and newer chipset, but the price gap is modest compared with the performance uplift.
Miller points out that Samsung’s trade‑in programme offers up to £300 off the Fold 8 when swapping a recent flagship, effectively narrowing the cost difference for existing Samsung users.
Verdict – Does the Fold 8 Earn Its Place?
Android Police concludes that the Galaxy Z Fold 8 is a clear step forward. The brighter screen, more powerful processor, longer battery life and refined hinge make it a more compelling daily driver, especially for power users who rely on multitasking.
For UK contract shoppers, the modest price increase is justified if you:
- Frequently use the device for productivity (multiple apps, document editing).
- Need a reliable hinge for heavy folding/unfolding.
- Want the best possible outdoor visibility.
If you’re a casual user who mainly consumes media and doesn’t need the absolute latest chipset, the Fold 5 remains a solid, slightly cheaper alternative—particularly if you can find a good deal on the secondary market.
Bottom Line for Android‑Mobile Readers
- Performance: +20 % CPU, smoother multitasking.
- Display: 33 % brighter, better outdoor readability.
- Battery: +15 % capacity, ~30 min longer screen‑on.
- Durability: New Flex‑Lock hinge reduces wobble.
- Price: £1,399 on contract – only £100 more than the Fold 5 at launch.
If you’re hunting a foldable that can double as a portable workstation without sacrificing the premium feel, the Galaxy Z Fold 8 is the model to target in the coming months.