Xiaomi 15 Ultra 12GB 256GB - 6.73-Inch AMOLED Display

Xiaomi 15 Ultra 12GB 256GB is a global-market camera phone built around a 6.73-inch WQHD+ AMOLED display, Qualcomm's Snapdragon 8 Elite platform, and a Leica-branded quad-camera system. The 256GB configuration pairs 12GB of RAM with UFS 4.1 storage, according to published specifications.

Display And Core Hardware

The phone uses a 6.73-inch WQHD+ AMOLED display with a 3200 x 1440 resolution, 1-120Hz refresh rate, and up to 3200 nits of multi-scenario peak brightness. Xiaomi also lists 68 billion colors, Dolby Vision, HDR10+, and 1920Hz PWM dimming.

The 256GB version is listed with 12GB of RAM and UFS 4.1 storage. Its Snapdragon 8 Elite processor uses a 3nm manufacturing process, with a prime-core frequency of up to 4.32GHz. Wi-Fi 7 capability, Bluetooth 6.0, NFC, an infrared blaster, and USB-C connectivity are part of the published feature set.

Leica Camera System

The rear array combines a 50MP 23mm main camera with a 1-inch sensor, a 50MP 70mm floating telephoto camera, a 50MP 14mm ultra-wide camera, and a 200MP 100mm ultra-telephoto camera. Optical image stabilization is listed for the main camera and telephoto units, while the 200MP sensor targets distant subjects.

GSMArena's review specifications list 8K video recording at 30 frames per second, 4K recording at up to 120 frames per second, and a 32MP front camera. Xiaomi's own specification sheet also lists Dolby Vision recording and 4K capture from the front camera.

Battery And Regional Context

The phone carries a 5410mAh battery and supports 90W wired charging, 80W wireless charging, and 10W reverse wireless charging. Xiaomi states that the power adapter and wireless charger are sold separately, so the charging figures describe phone capability rather than guaranteed box contents.

The published global specification page lists IP68 dust and water resistance under specified laboratory conditions, dual-SIM configurations, and an ultrasonic in-screen fingerprint sensor. Network support includes 5G bands, but carrier compatibility depends on the regional model and the operator's bands.

US buyers face a key distinction: the 12GB and 256GB configuration is documented in international listings, while Xiaomi's official US site does not present the model as a standard US-market phone. Independent coverage describes US access as unofficial, with international purchasing and carrier compatibility requiring extra scrutiny. A listed international price of $849.00 for the 12GB and 256GB configuration was shown by Giztop on 03/28/2026, while a separate US price listing gave an expected $1,499.00 figure on 03/04/2025.

Verdict For Camera Buyers

Xiaomi 15 Ultra 12GB 256GB is aimed at users who want extensive focal-length coverage, a large main sensor, and high-end display hardware in one phone. Compared with the Galaxy S25 Ultra, the Xiaomi has a 5410mAh battery versus 5000mAh in the comparison listing, while the Samsung model offers a larger 6.9-inch display. The 256GB capacity also leaves less room for large video libraries than the 512GB and 1TB versions.