Redmi K90 Ultra vs Xiaomi 12
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 12 (2022) runs on the Qualcomm Snapdragon 8 Gen 1; launch prices were $420 and $750. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 64/100 (a 9-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4500); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 1,322,176); the Xiaomi 12 is noticeably lighter (180g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Xiaomi 12
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 1322176
- Better Geekbench Single: 3013 vs 1662
- Better Geekbench Multi: 9287 vs 4188
- Bigger battery: 8550 vs 4500 mAh
- Faster charging: 100W vs 67W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper at launch: $420 vs $750
- Higher performance (92/100 vs 68/100)
- Longer battery life (78/100 vs 57/100)
- Better display (94/100 vs 82/100)
What makes Xiaomi 12 better?
- Lighter: 180g vs 227g
- Better camera (52/100 vs 37/100)
- Better portability (69/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Xiaomi 12, the Redmi K90 Ultra scores 9 points higher (73/100 vs 64/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 68/100). In the "camera" category, the Xiaomi 12 leads (52/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 57/100). Value score: Redmi K90 Ultra — 72/100, Xiaomi 12 — 42/100; 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 Ultra notably outperforms the Xiaomi 12 (92/100 vs 68/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 82/100). In the "camera" category, the Xiaomi 12 notably outperforms the Redmi K90 Ultra (52/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Xiaomi 12 (78/100 vs 57/100). In the "portability" category, the Xiaomi 12 notably outperforms the Redmi K90 Ultra (69/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Xiaomi 12 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Gen 1 | |
| AnTuTu | 3233695 | 1322176 | |
| Geekbench Single | 3013 | 1662 | |
| Geekbench Multi | 9287 | 4188 | |
| Display | 6.8" AMOLED | 6.3" AMOLED | |
| Resolution | 1280x2772 | 2400x1080 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 4500 mAh | |
| Charging | 100W | 67W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 113 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 13 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 12 | |
| Brightness (peak) | 3500 nits | 1100 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 152.7×69.9×8.2 mm | |
| Weight | 227 g | 180 g | |
| Launch price | $420 | $750 |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Xiaomi 12
- Main: 50MP f/1.88
- Ultrawide: 13MP
- Front: 32MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Xiaomi 12
- 6.3" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Xiaomi 12
- 4500 mAh
- Wired: 67W
- Wireless: 50W
Overall performance score
We compared Redmi K90 Ultra and Xiaomi 12, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Xiaomi 12 by 144.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $330. Redmi K90 Ultra was $330 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra notably outperforms the Xiaomi 12 (92/100 vs 68/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 82/100).
camera
In the "camera" category, the Xiaomi 12 notably outperforms the Redmi K90 Ultra (52/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Xiaomi 12 (78/100 vs 57/100).
portability
In the "portability" category, the Xiaomi 12 notably outperforms the Redmi K90 Ultra (69/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Xiaomi 12?
The Redmi K90 Ultra edges out the Xiaomi 12 by just 9 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Xiaomi 12?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Xiaomi 12 — 64/100.
Which has the better camera: the Redmi K90 Ultra or the Xiaomi 12?
The Xiaomi 12 leads on camera score (52/100 vs 37/100).
Which is more powerful: the Redmi K90 Ultra or the Xiaomi 12?
The Redmi K90 Ultra leads on performance (92/100 vs 68/100).
Should you choose the Redmi K90 Ultra over the Xiaomi 12?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Xiaomi 12 is a better fit for active users.