Nothing Phone (3) vs OnePlus 15T

Nothing Phone (3)

A bright, fluid 6.67-inch AMOLED that's excellent in practice, even if the 4,500-nit headline figure is HDR-only and it lacks full LTPO.

• The 2800×1260 30–120Hz AMOLED cranks to a claimed 4,500-nit peak (1,600 nits full-screen outdoors), great for outdoor visibility.
• Despite being FHD+, the display is excellent both indoors and in bright summer daylight, with a delightful tap-origin light-up animation.
• Independent measurement found real-world brightness around 700 nits SDR and ~1,550–1,600 nits HDR despite the 4,500-nit HDR headline.
• It switches only between 60 and 120Hz rather than true LTPO, so static content drains more battery — a downside at this price.
• The screen is crisp and vibrant and holds up really well both indoors and in direct sunlight.

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.

Nothing Phone (3)

The Snapdragon 8s Gen 4 is fast and butter-smooth in daily use and gaming, but it's flagship-lite — the most-repeated criticism at a $799 flagship price — and it runs warm under sustained load.

• It runs a 4nm Snapdragon 8s Gen 4 — on paper underwhelming for a flagship, but in practice everything is absolutely butter.
• 8s Gen 4 is not the 8 Elite — at $799 the manufacturer arguably should have offered the flagship chip.
• Geekbench scores well — better than 86–96% of devices on the market depending on the test — and it beats Google's Tensor G5 in multi-core and every 3DMark graphics benchmark.
• Gaming is strong — BGMI holds a stable 120fps and Genshin runs at 60fps on max settings — but Genshin pushes the surface past 45°C.
• It doesn't do a particularly good job of cooling the chip under sustained load.
• With 16GB RAM (on the $899 model) it keeps everything open and launches apps faster than an iPhone 16 in lab tests.

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.

Nothing Phone (3)

A reliable all-day 5,150mAh silicon-carbon cell (5,500mAh in India) with fast 65W wired plus 15W wireless and reverse charging — strong in tests, though one heavy user found it disappointing.

• The 5,150mAh silicon-carbon cell easily lasts all day — a typical day dips only into the upper-60s/low-70s%, one of the most reliable batteries in recent phones.
• Battery beat any Pixel tested and even the Galaxy S25 Ultra — heavy 5G days still ended as high as 45%.
• In an extreme drain test it ran 9h34m of screen-on time before dying — impressive even though it was first to die against 6,000mAh+ rivals, with a cool 53°C peak.
• 65W wired charging takes it 1–50% in about 19–20 minutes; there's also 15W wireless and reverse wireless charging (India gets a larger 5,500mAh cell).
• Despite the largest battery in any Nothing phone, one long-term reviewer calls it the worst battery life he's experienced on a Nothing Phone.
• The new silicon-carbon battery doesn't pack as big a capacity boost as expected from the technology.

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.

Nothing Phone (3)

Nothing OS is the phone's defining strength — clean, distinctive and best-in-class outside a Pixel — backed by an exceptional 5-year/7-year support promise, with Essential Space the standout AI.

• Nothing OS is one of the best ways to experience Android — reviewers' favourite part of the phone.
• It's promised 5 years of major Android updates and 7 years of security patches — a class-leading commitment.
• After a week of meetings, Essential Space replaced juggling half a dozen note apps — a genuinely useful AI feature.
• Nothing OS 4.0 (Android 16) might be one of the best experiences outside of the Pixel, getting the fundamentals absolutely right.
• Real bugs persist — a dual-SIM recognition issue causing missed calls, and the easily-triggered Essential Key recording everything on an accidental touch.

OnePlus 15T

The OnePlus 15T ships with ColorOS 16 on Android 16 in China rather than the global OxygenOS, though the two skins are now nearly identical in feel. Update commitments are unclear — OnePlus doesn't publish a timeline for Chinese-market hardware, and even the global OnePlus 15 only commits to 4 years of major Android upgrades. Mind Space (AI-powered productivity vault) and Gemini integration are the headline software features.

• ColorOS 16 comes pre-installed on the 15T instead of OxygenOS — but the differences are minor overall, with German language and Android Auto supported, though no WearOS watches or eSIMs.
• There are question marks over the duration of the updates provided — the manufacturer does not usually provide any information on this for China, though typically a OnePlus 15-class phone should receive security updates for six years.
• OxygenOS 16 (and ColorOS 16 by extension) integrates Gemini with Mind Space — you can ask Gemini about any saved memory and it accesses local content to perform tasks, making it the best on-phone AI integration we have seen.
• Mind Space is the headline AI feature — a digital vault that takes a screenshot of important content and saves it as a card with URL, summary, title and hashtags for contextual search.
• The system feels incredibly smooth — arguably one of the best experiences you can get on Android right now, with useful features for students like meeting summaries and lecture transcription.