OnePlus 13T vs OnePlus 15T

OnePlus 13T

A 6.32-inch 1.5K 120Hz LTPO flat AMOLED with over 90% screen-to-body ratio and 2,160Hz PWM dimming below 50 nits. It's smooth and well-rounded for a compact phone, but its ~800-nit typical / 1,600-nit HBM brightness is modest next to flagship rivals.

• A 6.32-inch AMOLED with 1.5K resolution and 120Hz adaptive LTPO refresh — buttery-smooth scrolling with excellent battery optimisation.
• OnePlus claims peak brightness over 800 nits for typical content with a high-brightness mode up to 1,600 nits for HDR or direct sunlight; it defaults to 2,160Hz PWM dimming below 50 nits to ease eye strain.
• It's a 6.32-inch 120Hz AMOLED with 1,600 nits of peak brightness and over 90% screen-to-body ratio.
• Measured manual brightness can go over 800 nits — plenty bright in practice even if the headline numbers are modest.
• There's also a DC dimming option alongside the 2,160Hz PWM, useful for flicker-sensitive users.
• It has a killer display for the size that holds up for gaming and streaming day to day.

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.

OnePlus 13T

Flagship Snapdragon 8 Elite with up to 16GB RAM and 512GB UFS 4.0 — it posted an AnTuTu over 3,000,000 (beating the standard OnePlus 13 and even the vivo X200 Pro) and handles top games well. The caveat is sustained thermals: ~52% stress-test stability and benchmark peak temps near 68°C.

• Powered by the Snapdragon 8 Elite on TSMC's 3nm node — one of the most efficient and powerful chipsets right now.
• Its AnTuTu score of 3,006,913 beats the current leader, the vivo X200 Pro, and is higher than the flagship OnePlus 13, paired with 16GB RAM and 512GB storage.
• Geekbench 6 returned ~3,080 single-core and ~9,829 multi-core; in 3DMark Steel Nomad Light it scored 2,513 with 52% stability after 20 rounds, holding ~59fps with power under 4W and body below 40°C.
• It opens apps in a blink, switches between games and socials seamlessly, and runs cool doing it — a genuine compact powerhouse.
• Genshin Impact runs ~60fps (max 61, lows to 48) at max ~39°C; PUBG is officially capped at 40fps on highest settings but very-high runs up to 80fps.
• In a sustained multi-phone benchmark drain it got the hottest of the group, with a peak around 68°C.

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.

OnePlus 13T

The headline feature: a 6,260mAh silicon-carbon 'Glacier Battery' — the largest in any OnePlus and, per a multi-phone drain test, the best battery life of any premium phone, beating the iPhone 16 Pro Max, S25 Ultra, Pixel 9 Pro XL and OnePlus 13. 80W SUPERVOOC wired tops it up in ~52–62 minutes; there's no wireless charging.

• The 6,260mAh silicon-carbon cell took the OnePlus 13T to a record-breaking 13 hours 42 minutes in a drain test, beating the iPhone 16 Pro Max (13h10m), Xiaomi 15 Pro, S25 Ultra and OnePlus 13.
• The OnePlus 13T dethroned the iPhone 16 Pro Max as battery champion — it can be considered to have the best battery life of all premium smartphones on the market right now.
• A 5-hour heavy-usage test left 46% battery; it charged to 56% in 25 minutes and a full charge in about 62 minutes (200 nits, 25°C).
• A 10-minute charge got 0–28% and a full 100% charge took about 52 minutes on 80W, powering the colossal 6,260mAh cell.
• One full day of heavy real-world use (gaming, podcasts, workout, calls) gave 12 hours of use and 5h14m of screen-on time before hitting 2%, with a 12%→100% charge in ~34 minutes.
• There is no wireless charging — one of the OnePlus 13 features sacrificed alongside IP68 and USB 3.0 to hit the price.

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.