Xiaomi 15T review – GSMArena.com tests | Infinium-tech

Introduction

The Xiaomi 15T is here to carry the T-series torch in late 2025, and while it’s technically the “vanilla” entry of the pair, it’s anything but stripped down. Xiaomi’s T-models have long been about offering a balance of performance and features that approach flagship territory without demanding full flagship pricing, and the 15T follows that formula closely.

At first glance, you might struggle to tell the 15T apart from its Pro sibling. Both have the same slim 7.5mm profile, IP68 protection (now rated for 3m submersion), and a 6.83-inch AMOLED display capable of 3,200 nits of peak brightness with Dolby Vision and HDR10+ support. The refresh rate is capped at 120Hz rather than the Pro’s higher limit, but for most use cases and games, that’s hardly a practical degradation. Gorilla Glass 7i on the front and a reinforced glass fiber back keep things sharp and durable, even if the frame is plastic.

Under the hood, Xiaomi chose MediaTek’s Dimensity 8400 Ultra, paired with 12GB of LPDDR5X RAM and fast UFS 4.1 storage. It may not have the Snapdragon 8 Elite found in Xiaomi’s top flagships, but it promises plenty of horsepower and comes with a new Astral Communication feature that enables offline device-to-device messaging at distances of up to 1.3 km. On the other hand, Xiaomi’s IceLoop cooling technology should maintain high sustained performance.

Xiaomi 15T specifications at a glance:

• Body: 163.2×78.0x7.5mm, 194g; Glass front (Gorilla Glass 7i), plastic frame, glass fiber back; IP68 dust-proof and water-resistant (submersible up to 3 meters for 30 minutes).
• Display: 6.83″ AMOLED, 68B colors, 120Hz, 3840Hz PWM, Dolby Vision, HDR10+, 3200 nits (peak), 1280x2772px resolution, 19.49:9 aspect ratio, 447ppi.
• Chipset: MediaTek Dimensity 8400 Ultra (4 nm): Octa-core (1×3.25 GHz Cortex-A725 & 3×3.0 GHz Cortex-A725 & 4×2.1 GHz Cortex-A725); Mali-G720 MC7.
• Memory: 256GB 12GB RAM, 512GB 12GB RAM; UFS 4.1.
• OS/Software: Android 15, HyperOS 2.
• rear camera: wide (main): 50 MP, f/1.7, 23mm, 1/1.55″, 1.0µm, PDAF, OIS; telephoto: 50 MP, f/1.9, 46 mm, 1/2.76″, 0.64µm, PDAF, 2x optical zoom; ultra wide angle: 12 MP, f/2.2, 15mm, 120-degree, 1/3.06″, 1.12μm.
• Front Camera: 32 MP, f/2.2, 21mm (wide), 1/3.44″, 0.64µm.
• video capture: rear camera:4K@30/60fps, 1080p@30/60/120/240/960fps, Gyro-EIS, 10-bit Rec. 2020, HDR10+; front camera: 4K@30fps, 1080p@30/60fps, HDR10+.
• Battery: 5500mAh; 67W wired, PD3.0, 100% in 50 minutes.
• Connectivity: 5G; é SIM; Wi-Fi 6E; BT 6.0; NFC; Infrared port.
• various: Fingerprint reader (under the display, optical); stereo speakers (with Dolby Atmos); Circle to search.

The camera setup mirrors what we saw in the previous generation: a 50MP wide, a 50MP 2x telephoto, and a 12MP ultrawide – all enhanced by Leica Summilux optics and Xiaomi’s new AISP 2.0 computational pipeline. It doesn’t have 8K video capture, which remains a Pro-exclusive, but the 15T offers 4K60 HDR10+ and even 10-bit log recording, features that will satisfy most creators.

Battery life should be another strong suit thanks to the large 5,500mAh cell, although charging speeds top out at 67W. That’s slower than the Pro’s 90W and Xiaomi’s ultra-flagship, but still enough to fully recharge in less than an hour. Stereo speakers with Dolby Atmos, an IR blaster and the latest HyperOS 2 based on Android 15 complete a good offering.

The Xiaomi 15T may not grab headlines with bleeding-edge specs like 8K video or a 144Hz display, but it offers an upper-midrange experience at a low price. Despite a launch price of €650, the phone can already be found with third-party retailers for less than €500, presenting itself as a strong value alternative to the Pro and Xiaomi’s expensive Number-series flagships, with very few compromises along the way.

unbox

The Xiaomi 15T comes in a simple white two-piece cardboard box. It feels quite sturdy and protects the phone well during transit. There’s a cardboard cradle for the phone, and from what we can tell, there’s essentially no plastic in the packaging, which is great to see.

Our European unit ships with the new EU energy label. This gives the Xiaomi 15T an A efficiency category, with an estimated battery capacity of 57:44 hours. The device also receives an “A” for drop resistance, “C” for repairability, an IP68 ingress protection rating, and a 1600 charge cycle rating for the battery.

Don’t expect an overly generous support package. Still, you get a nice, soft TPU case in the box along with a Type-C to Type-C USB cable. There was no charger included in our package, which is standard in the EU. However, it is best to check with your local retailer as you may be eligible.