Redmi K90 Pro Max vs Xiaomi 15 Ultra
The Redmi K90 Pro Max (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $561 and $999. By overall MobileRank rating, the Redmi K90 Pro Max leads — 86/100 vs 85/100 (a 1-point difference). Key differences: the Redmi K90 Pro Max has the bigger battery (7560 mAh vs 6000); the Redmi K90 Pro Max is faster in AnTuTu (4,119,955 vs 3,030,376); the Redmi K90 Pro Max is noticeably lighter (210g vs 225g).
Redmi K90 Pro Max
Xiaomi 15 Ultra
- Higher AnTuTu: 4119955 vs 3030376
- Better Geekbench Single: 3640 vs 3050
- Better Geekbench Multi: 11033 vs 10200
- Bigger battery: 7560 vs 6000 mAh
- Faster charging: 100W vs 90W
- Lighter: 210g vs 225g
- Cheaper: $561 vs $999
- Higher performance (98/100 vs 92/100)
- Longer battery life (89/100 vs 80/100)
- Better portability (54/100 vs 29/100)
- Better value for money (90/100 vs 82/100)
- Better camera (87/100 vs 78/100)
- Better display (90/100 vs 81/100)
Comparing the Redmi K90 Pro Max vs the Xiaomi 15 Ultra, the Redmi K90 Pro Max scores 1 points higher (86/100 vs 85/100). In the "performance" category, the Redmi K90 Pro Max is a bit better (98/100 vs 92/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 81/100). In the "camera" category, the Xiaomi 15 Ultra is a bit better (87/100 vs 78/100). In the "battery" category, the Redmi K90 Pro Max is a bit better (89/100 vs 80/100). In the "portability" category, the Redmi K90 Pro Max notably outperforms the Xiaomi 15 Ultra (54/100 vs 29/100). In the "value for money" category, the Redmi K90 Pro Max is a bit better (90/100 vs 82/100).
| Specification | Redmi K90 Pro Max | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 4119955 | 3030376 | |
| Geekbench Single | 3640 | 3050 | |
| Geekbench Multi | 11033 | 10200 | |
| Display | 6.9" OLED | 6.7" LTPO AMOLED | |
| Resolution | 2608x1200 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7560 mAh | 6000 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | 50W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 3500 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.3×77.8×7.9 mm | 161.3×75.3×9.4 mm | |
| Weight | 210 g | 225 g | |
| Price | $561 | $999 |
Redmi K90 Pro Max
- Main: 50MP f/f/1.88
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K90 Pro Max
- 6.9" OLED
- Resolution: 2608x1200
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Redmi K90 Pro Max
- 7560 mAh
- Wired: 100W
- Wireless: 50W
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Redmi K90 Pro Max and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Pro Max leads Xiaomi 15 Ultra by 36.0% in our overall performance rating.
Price difference: $438. Redmi K90 Pro Max is cheaper by $438.
performance
In the "performance" category, the Redmi K90 Pro Max is a bit better (98/100 vs 92/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 81/100).
camera
In the "camera" category, the Xiaomi 15 Ultra is a bit better (87/100 vs 78/100).
battery
In the "battery" category, the Redmi K90 Pro Max is a bit better (89/100 vs 80/100).
portability
In the "portability" category, the Redmi K90 Pro Max notably outperforms the Xiaomi 15 Ultra (54/100 vs 29/100).
value for money
In the "value for money" category, the Redmi K90 Pro Max is a bit better (90/100 vs 82/100).
Which is better: the Redmi K90 Pro Max or the Xiaomi 15 Ultra?
The Redmi K90 Pro Max edges out the Xiaomi 15 Ultra by just 1 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Pro Max and the Xiaomi 15 Ultra?
The Redmi K90 Pro Max has a MobileRank rating of 86/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Redmi K90 Pro Max or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 78/100).
Which is more powerful: the Redmi K90 Pro Max or the Xiaomi 15 Ultra?
The Redmi K90 Pro Max leads on performance (98/100 vs 92/100).
Should you choose the Redmi K90 Pro Max over the Xiaomi 15 Ultra?
The Redmi K90 Pro Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.