OnePlus 15T vs Samsung Galaxy Z Flip 7

OnePlus 15T

Snapdragon 8 Elite Gen 5 paired with 12-16GB LPDDR5X Ultra Pro RAM delivers flagship synthetic scores — Notebookcheck recorded Geekbench multi-core 10,976 and 3DMark Wild Life Unlimited 29,901, on par with the larger Xiaomi 17 and Honor Magic8 Pro Air. The problem is sustained: in the 3DMark Wild Life stress test the GPU drops over 50% and the back of the phone hits 50 °C, which both Notebookcheck and SuperSaf flag as a deal-breaker for long gaming sessions.

• Geekbench 6 multi-core hits 10,976 — flagship-tier and within 1% of the average 8 Elite Gen 5 result, so there is no compromise on the chipset versus larger phones.
• 3DMark Wild Life Unlimited hits 29,901 — 5% above the 8 Elite Gen 5 average and ahead of the Xiaomi 17 with the same chip.
• In the 3DMark stress tests the OnePlus 15T shows a sharp drop in performance of over 50%, which significantly lowers our rating.
• Wildlife Extreme stress test scores swung from 6,990 best loop to 3,743 worst loop in a single run — the chart is 'quite a bit of a bumpy ride' and performance mode did nothing to stabilize it.
• Surface temperatures hit 48.3 °C on the back during stress testing and continued climbing to 50 °C near the camera bump — about 45 °C internal — which seems to be the phone's thermal limit.
• Genshin Impact averaged 60.3 fps over 30 minutes at just 3.2 W power draw, with the phone staying cool to the touch — and Peacekeeper Elite pushed 164.5 fps thanks to native 165 Hz support.
• r/Android's reviewer thread flags the same thermal issue directly: 'Gets kinda hot, over 50 degrees in the corner. This is with its very heavy throttling.'

Samsung Galaxy Z Flip 7

The Flip 7 ditches Qualcomm for Samsung's in-house Exynos 2500 — a 3 nm 10-core chip with the new Xclipse 950 GPU and 12 GB of RAM. It's faster than the Flip 6's Snapdragon 8 Gen 3 in everyday use, but reviewers agree it doesn't reach Snapdragon 8 Elite levels, and Notebookcheck logged pronounced thermal throttling under sustained load. Trusted Reviews argues that's the right trade-off for a thermally constrained clamshell; Notebookcheck and MKBHD say it's a step backwards versus the Fold 7's Snapdragon 8 Elite for Galaxy.

• The Exynos 2500 has more power than last year's top Snapdragon 8 Gen 3, but doesn't reach the levels of the Snapdragon 8 Elite — so there's a real performance gap between the Flip and Fold range this year.
• Geekbench 6 multi-core lands at 7,584 and single-core at 2,251 — fast enough for everyday use but visibly trailing this year's Snapdragon 8 Elite flagships.
• The new chip never felt particularly sluggish during gaming, Galaxy AI features or other taxing activities, though the phone would get warm during camera testing or sustained Google Maps use.
• Throttling is once again a major issue with the latest Flip generation, including at times a very pronounced reduction in performance under sustained load.

OnePlus 15T

OnePlus has dropped the Hasselblad partnership (now Oppo-exclusive) and built the 15T camera around two 50MP sensors — a main with a 1/1.56-inch Sony IMX906 and OIS, plus a new 3.5x periscope telephoto with OIS at the classic 85mm portrait focal length. There is no ultrawide. Notebookcheck still rates the system 'a class above' the iPhone 17, but reviewers agree this is the area where the 15T's compact-and-cheap positioning is most visible — sensor sizes are small, sharpness and dynamic range trail genuine top-tier flagships, and the OnePlus 15 / Oppo Find X9 Pro siblings keep the better imaging.

• The new 3.5x periscope telephoto delivers a classic 85 mm focal length perfect for portraits — a huge step forward from the OnePlus 13T's limited 2x zoom.
• OnePlus has confirmed the headline upgrade is a LUMO periscope telephoto with both improved hardware and improved algorithms, focused on stronger zoom and better atmospheric portraits.
• Despite the small 1/1.56-inch main sensor, the 15T's daylight and low-light photos are 'still a class above' the iPhone 17 in side-by-side comparison.
• The 50MP main sensor lacks sharpness and dynamics — good photos are possible in both daylight and dark, but top quality looks different.
• There is no ultra-wide-angle camera at all — the omission is partly excused by the new periscope, but it's a meaningful downgrade versus the OnePlus 15's triple-camera system.
• The telephoto produces unstable results inconsistent with the main sensor — at night the camera struggles with depth perception and doesn't always switch to the periscope when it should.
• The cooperation with Hasselblad is now Oppo-exclusive, and the OnePlus 15T's built-in image sensors are quite small and therefore not very bright.
• The selfie camera drops from 32MP on the OnePlus 15 to 16MP on the 15T — a small but real downgrade for anyone who shoots a lot of front-facing video.

Samsung Galaxy Z Flip 7

The Flip 7's rear camera hardware is identical to the Flip 6's: a 50 MP f/1.8 main with OIS, a 12 MP f/2.2 ultrawide, and a 10 MP selfie camera on the inner display. There's still no telephoto — zoom tops out at a 2x crop from the main sensor. Reviewers agree the dual-camera setup is good for the form factor and that color processing is calmer than past Flips, but Engadget, Wired and The Verge all say image quality is now visibly behind both traditional flagships and the Z Fold 7. The form factor's party trick — using the rear camera for selfies and shooting from low/odd angles in flex mode — still works brilliantly.

• The cameras are unchanged from the Flip 6 — same 50 MP main with 2x crop, 12 MP ultrawide, and 10 MP inner selfie camera — and Samsung continues to deliver a stunning portrait mode when paired with the 2x zoom.
• Default image processing can be a little crunchy with Samsung's well-documented tendency to pump up saturation on reds and blues.
• The cameras are dated and there's no dedicated telephoto — if you want a foldable with the best cameras, you'll have to go with the Fold series.
• Video gets a real upgrade with 10-bit HDR recording (up from 8-bit), giving more color accuracy and detail than the Flip 6 — and holding the Flip 7 like a retro camcorder remains more fun than it should be.

OnePlus 15T

This is the section the OnePlus 15T was built to win. The 7,500 mAh silicon-carbon 'Glacier' cell is the largest ever fitted to a true compact phone — 50% bigger than the iPhone 17's pack in a similar footprint. Notebookcheck measured roughly 1.5 days of real-world endurance at 150 cd/m². Wired charging tops out at 100 W, wireless at 50 W. The only friction points are the missing built-in magnets for MagSafe-style alignment and the still-USB-2.0 port.

• OnePlus relies on a silicon-carbon-based battery with a large capacity of 7,500 mAh for its mini flagship — in our practical battery test at 150 cd/m² brightness, the 15T achieved an excellent battery life of nearly 1.5 days.
• 9to5Google's preview confirms the 7,500 mAh cell carries the same 'Glacier' moniker as the OnePlus 15's battery, so the silicon-carbon structure is here too — 200 mAh more than the larger sibling.
• Even though the phone keeps the same compact size, it now packs a massive 7,500 mAh battery — to put that into perspective, the iPhone 17 Pro Max only has around 5,000 mAh, and this is a 6.32-inch phone.
• Battery life is wild for a phone this size and is actually a hair bigger than the one in the OnePlus 15, which has a noticeably larger footprint.
• 100W SuperVOOC wired charging and 50W wireless mean even the huge cell refills fast — getting through two full days on a single charge feels totally realistic.
• There is no native magnetic Qi alignment — wireless charging works, but accessories require a separate magnetic case for MagSafe-style snap-on functionality.
• r/Android's reaction to the battery is unambiguous — 'Incredible battery life makes the compact smartphone competition pale in comparison' is the actual review-thread headline.

Samsung Galaxy Z Flip 7

Samsung shoehorned a 4,300 mAh cell into a slimmer body (up from 4,000 mAh on the Flip 6) and the more efficient Exynos 2500 turns that into a real endurance gain — Engadget's video rundown jumped from 13 to 18.5 hours. Most reviewers easily get a full day, with light users pushing into a second. Charging is where Samsung has not moved at all: 25W wired (same as Flip 6, ~89 minutes to full), 15W wireless. On a $1,099 phone in 2025 with rivals doing 45–80W, every reviewer flags this as the biggest miss.

• The 4,300 mAh battery gives 'battery performance a little worse than your average slab-style phone, but not by much' — moderate use ended most days with 40–50% remaining.
• Engadget's standard video rundown jumped from 13 hours on the Flip 6 to 18.5 hours on the Flip 7 — a result so unexpectedly good they ran the test two more times to confirm.
• Light usage days easily push into a second day — about 3 hours of mixed use (social, messaging, video, gaming) ended the day at 11pm with over 40% left.
• Wired charging tops out at 25W — the same as the Flip 6 and the base S25 — and Samsung still has the gall to call it 'Super Fast Charging' when rivals are at 45W or higher.