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; launch prices were $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 (3,622,315 vs 3,030,376); the Redmi K90 Pro Max is noticeably lighter (210g vs 225g).
Profile comparison
Category scores
Redmi K90 Pro Max
Xiaomi 15 Ultra
What makes Redmi K90 Pro Max better?
- Higher AnTuTu: 3622315 vs 3030376
- Better Geekbench Single: 3639 vs 3050
- Better Geekbench Multi: 11047 vs 10200
- Bigger battery: 7560 vs 6000 mAh
- Faster charging: 100W vs 90W
- Lighter: 210g vs 225g
- Cheaper at launch: $561 vs $999
- Higher performance (97/100 vs 92/100)
- Longer battery life (89/100 vs 80/100)
- Better portability (54/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Better camera (87/100 vs 78/100)
- Better display (90/100 vs 81/100)
Comparison verdict
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). Value score: Redmi K90 Pro Max — 90/100, Xiaomi 15 Ultra — 80/100; 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 Redmi K90 Pro Max is a bit better (97/100 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).
Specs comparison
| Specification | Redmi K90 Pro Max | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3622315 | 3030376 | |
| Geekbench Single | 3639 | 3050 | |
| Geekbench Multi | 11047 | 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 | |
| Launch price | $561 | $999 |
Camera comparison
Redmi K90 Pro Max
- Main: 50MP f/1.88
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
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
Battery and charging
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
Overall performance score
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 19.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $438. Redmi K90 Pro Max was $438 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Pro Max is a bit better (97/100 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).
Frequently asked questions
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 (97/100 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.