Xiaomi 15T vs Xiaomi 17 Ultra
The Xiaomi 15T (2025) runs on the MediaTek Dimensity 8400 Ultra, while the Xiaomi 17 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $449 and $999. By overall MobileRank rating, the Xiaomi 17 Ultra leads — 89/100 vs 69/100 (a 20-point difference). Key differences: the Xiaomi 17 Ultra has the bigger battery (6000 mAh vs 5500); the Xiaomi 17 Ultra is faster in AnTuTu (3,600,724 vs 1,915,524); the Xiaomi 15T is noticeably lighter (194g vs 226g).
Profile comparison
Category scores
Xiaomi 15T
Xiaomi 17 Ultra
What makes Xiaomi 15T better?
- Lighter: 194g vs 226g
- Cheaper at launch: $449 vs $999
- Better portability (67/100 vs 40/100)
What makes Xiaomi 17 Ultra better?
- Higher AnTuTu: 3600724 vs 1915524
- Better Geekbench Single: 3639 vs 1579
- Better Geekbench Multi: 11047 vs 6100
- Bigger battery: 6000 vs 5500 mAh
- Faster charging: 90W vs 67W
- Higher performance (97/100 vs 76/100)
- Better camera (93/100 vs 59/100)
- Longer battery life (80/100 vs 59/100)
- Better display (89/100 vs 83/100)
Comparison verdict
Comparing the Xiaomi 15T vs the Xiaomi 17 Ultra, the Xiaomi 17 Ultra scores 20 points higher (89/100 vs 69/100). In the "performance" category, the Xiaomi 17 Ultra leads (97/100 vs 76/100). In the "camera" category, the Xiaomi 17 Ultra leads (93/100 vs 59/100). In the "battery" category, the Xiaomi 17 Ultra leads (80/100 vs 59/100). Value score: Xiaomi 15T — 62/100, Xiaomi 17 Ultra — 88/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Xiaomi 17 Ultra notably outperforms the Xiaomi 15T (97/100 vs 76/100). In the "display" category, the Xiaomi 17 Ultra is a bit better (89/100 vs 83/100). In the "camera" category, the Xiaomi 17 Ultra significantly outperforms the Xiaomi 15T (93/100 vs 59/100). In the "battery" category, the Xiaomi 17 Ultra notably outperforms the Xiaomi 15T (80/100 vs 59/100). In the "portability" category, the Xiaomi 15T notably outperforms the Xiaomi 17 Ultra (67/100 vs 40/100).
Specs comparison
| Specification | Xiaomi 15T | Xiaomi 17 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 8400 Ultra | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 1915524 | 3600724 | |
| Geekbench Single | 1579 | 3639 | |
| Geekbench Multi | 6100 | 11047 | |
| Display | 6.8" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 2712x1220 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5500 mAh | 6000 mAh | |
| Charging | 67W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 166 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 50 MP | 200 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 3200 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.2×78.0×7.5 mm | 162.9×77.6×8.3 mm | |
| Weight | 194 g | 226 g | |
| Launch price | $449 | $999 |
Camera comparison
Xiaomi 15T
- Main: 50MP f/1.6
- Ultrawide: 12MP
- Telephoto: 50MP
- Front: 20MP
Xiaomi 17 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
Xiaomi 15T
- 6.8" AMOLED
- Resolution: 2712x1220
- Refresh rate: 120 Hz
Xiaomi 17 Ultra
- 6.8" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Xiaomi 15T
- 5500 mAh
- Wired: 67W
- No wireless charging
Xiaomi 17 Ultra
- 6000 mAh
- NanoReview test: web browsing 16:09 hrs, total 33:23 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Xiaomi 15T and Xiaomi 17 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 17 Ultra leads Xiaomi 15T by 46.8% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $550. Xiaomi 15T was $550 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Xiaomi 17 Ultra notably outperforms the Xiaomi 15T (97/100 vs 76/100).
display
In the "display" category, the Xiaomi 17 Ultra is a bit better (89/100 vs 83/100).
camera
In the "camera" category, the Xiaomi 17 Ultra significantly outperforms the Xiaomi 15T (93/100 vs 59/100).
battery
In the "battery" category, the Xiaomi 17 Ultra notably outperforms the Xiaomi 15T (80/100 vs 59/100).
portability
In the "portability" category, the Xiaomi 15T notably outperforms the Xiaomi 17 Ultra (67/100 vs 40/100).
Frequently asked questions
Which is better: the Xiaomi 15T or the Xiaomi 17 Ultra?
The Xiaomi 17 Ultra significantly outperforms the Xiaomi 15T by 20 points (89/100 vs 69/100).
What is the rating of the Xiaomi 15T and the Xiaomi 17 Ultra?
The Xiaomi 15T has a MobileRank rating of 69/100, the Xiaomi 17 Ultra — 89/100.
Which has the better camera: the Xiaomi 15T or the Xiaomi 17 Ultra?
The Xiaomi 17 Ultra leads on camera score (93/100 vs 59/100).
Which is more powerful: the Xiaomi 15T or the Xiaomi 17 Ultra?
The Xiaomi 17 Ultra leads on performance (97/100 vs 76/100).
Should you choose the Xiaomi 15T over the Xiaomi 17 Ultra?
The Xiaomi 15T is a better fit for active users. The Xiaomi 17 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.