OnePlus 15T vs Xiaomi 15 Pro

OnePlus 15T

The 6.32-inch 165 Hz 1.5K AMOLED panel is the only true 165 Hz compact-flagship display on the market and pairs that refresh rate with a measured 1,800 nits brightness, 460 ppi pixel density, Crystal Shield Glass, and HDR10+/Dolby Vision support. Native 165 Hz support in popular FPS games is a real differentiator. Notebookcheck flags 120.7 Hz PWM dimming that can cause eyestrain for sensitive users.

• The 6.32-inch 165 Hz AMOLED panel achieves a very good 460 ppi pixel density and the advertised maximum brightness of 1,800 nits in standard measurement.
• Display sharpness is plenty competent — sharp, smooth, and easily one of the strongest spec sheets you can get on a compact phone.
• Native 165 Hz support in COD, Delta Force and Peacekeeper Elite makes this the only small-screen flagship pushing a full 165 Hz gaming experience.
• OnePlus claims up to 3,600 nits peak brightness — even on a playground in direct sunlight you can still see everything clearly, no squinting required.
• Specifications confirm a 6.32-inch 1.5K (1216 × 2640) resolution with 165 Hz refresh — a configuration unique to the 15T in the compact class.
• Display backlight flickers at just 120.7 Hz under PWM dimming — low enough that the flickering may cause eyestrain and headaches for sensitive users after extended use.

Xiaomi 15 Pro

The 6.73-inch 2K LTPO AMOLED is a technical marvel, hitting 3,200 nits peak brightness while consuming 24% less power than the Xiaomi 14 Pro's display. The 1920Hz PWM dimming reduces eye strain, though some users report OLED smear at low brightness levels.

• 3,200 nits peak brightness with 24% lower power consumption than the predecessor — outstanding efficiency
• 2K resolution (2670x1200) with 120Hz LTPO and 1920Hz PWM dimming for reduced eye strain
• Reports of OLED smear/ghosting at lower brightness levels when scrolling dark content

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.'

Xiaomi 15 Pro

The Snapdragon 8 Elite (3nm) delivers a 44% single-core improvement over the previous generation and manages thermals better than most competitors. NotebookCheck awarded a 99% application performance score, placing it among the fastest phones available.

• Snapdragon 8 Elite achieves Geekbench 6 single-core of 3,157 — a 44.4% leap over Snapdragon 8 Gen 3
• Better thermal management and sustained performance than competitors like the Oppo Find X8 Pro
• Some throttling under prolonged heavy gaming loads, though managed better than peers

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.

Xiaomi 15 Pro

The triple 50MP Leica Summilux system delivers solid results with a standout 5x periscope telephoto. The main sensor with f/1.44 aperture handles most scenarios well, and AI Zoom makes 20x digital shots usable. However, the ultrawide is the clear weak link, and the system can't quite match the Vivo X200 Pro's imaging prowess.

• 5x periscope telephoto (120mm) delivers sharp, detailed results up to 10x — AI Zoom usable at 20x
• Main 50MP sensor with f/1.44 aperture and Leica color science produces pleasing, natural-looking images
• Ultrawide camera (50MP JN1) is the weakest lens — frequently criticized by users as noticeably below main and telephoto quality
• Camera scored 82% on NotebookCheck — the lowest individual category score, behind the Vivo X200 Pro