Redmi K90 Max vs Xiaomi 12S Ultra
The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Xiaomi 12S Ultra (2022) runs on the Qualcomm Snapdragon 8+ Gen 1. By overall MobileRank rating, the Redmi K90 Max leads — 67/100 vs 49/100 (a 18-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 4800); the main camera is 50 MP vs 3 MP; the Redmi K90 Max is faster in AnTuTu (3,803,420 vs 1,627,862); the Redmi K90 Max is thinner (8.1mm vs 9.1mm).
Redmi K90 Max
Xiaomi 12S Ultra
- Higher AnTuTu: 3803420 vs 1627862
- Better Geekbench Single: 3228 vs 1761
- Better Geekbench Multi: 9553 vs 4688
- Bigger battery: 8550 vs 4800 mAh
- Faster charging: 100W vs 67W
- Better main camera: 50MP vs 3MP
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (82/100 vs 24/100)
- Longer battery life (77/100 vs 43/100)
- Better value for money (75/100 vs 55/100)
- Lighter: 225g vs 227g
- Better camera (70/100 vs 32/100)
- Better design/ergonomics (18/100 vs 16/100)
Comparing the Redmi K90 Max vs the Xiaomi 12S Ultra, the Redmi K90 Max scores 18 points higher (67/100 vs 49/100). In the "performance" category, the Redmi K90 Max leads (82/100 vs 24/100). In the "camera" category, the Xiaomi 12S Ultra leads (70/100 vs 32/100). In the "battery" category, the Redmi K90 Max leads (77/100 vs 43/100). In the "value for money" category, the Redmi K90 Max leads (75/100 vs 55/100). In the "performance" category, the Redmi K90 Max significantly outperforms the Xiaomi 12S Ultra (82/100 vs 24/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Xiaomi 12S Ultra significantly outperforms the Redmi K90 Max (70/100 vs 32/100). In the "battery" category, the Redmi K90 Max significantly outperforms the Xiaomi 12S Ultra (77/100 vs 43/100). In the "design" category, the Xiaomi 12S Ultra and the Redmi K90 Max are nearly equal (18/100 vs 16/100). In the "value for money" category, the Redmi K90 Max notably outperforms the Xiaomi 12S Ultra (75/100 vs 55/100).
| Specification | Redmi K90 Max | Xiaomi 12S Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8+ Gen 1 | |
| AnTuTu | 3803420 | 1627862 | |
| Geekbench Single | 3228 | 1761 | |
| Geekbench Multi | 9553 | 4688 | |
| Display | 6.8" AMOLED | 6.7" LTPO2 AMOLED | |
| Resolution | 2772x1280 | 1440x3200 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 4800 mAh | |
| Charging | 100W | 67W | |
| DXOMark (camera) | — | 136 | |
| Main camera | 50 MP | 3 MP | |
| Ultrawide | 8 MP | 48 MP | |
| Telephoto | 0 MP | 48 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 12, MIUI 13 | |
| Brightness (peak) | 3500 nits | 1500 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP68 | |
| Dimensions | 162.9×77.9×8.1 mm | 163.2×75.0×9.1 mm | |
| Weight | 227 g | 225 g | |
| Price | $504 | — |
Redmi K90 Max
- Main: 50MP f/f/1.68
- Ultrawide: 8MP
- Front: 20MP
Xiaomi 12S Ultra
- Main: 3MP f/f/1.9
- Ultrawide: 48MP
- Telephoto: 48MP
- Front: 32MP
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Xiaomi 12S Ultra
- 6.7" LTPO2 AMOLED
- Resolution: 1440x3200
- Refresh rate: 120 Hz
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Xiaomi 12S Ultra
- 4800 mAh
- Wired: 67W
- No wireless charging
We compared Redmi K90 Max and Xiaomi 12S Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Max leads Xiaomi 12S Ultra by 133.6% in our overall performance rating.
Xiaomi 12S Ultra
Price unknownperformance
In the "performance" category, the Redmi K90 Max significantly outperforms the Xiaomi 12S Ultra (82/100 vs 24/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Xiaomi 12S Ultra significantly outperforms the Redmi K90 Max (70/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Max significantly outperforms the Xiaomi 12S Ultra (77/100 vs 43/100).
design
In the "design" category, the Xiaomi 12S Ultra and the Redmi K90 Max are nearly equal (18/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 Max notably outperforms the Xiaomi 12S Ultra (75/100 vs 55/100).
Which is better: the Redmi K90 Max or the Xiaomi 12S Ultra?
The Redmi K90 Max is noticeably better than the Xiaomi 12S Ultra — the overall rating gap is 18 points.
What is the rating of the Redmi K90 Max and the Xiaomi 12S Ultra?
The Redmi K90 Max has a MobileRank rating of 67/100, the Xiaomi 12S Ultra — 49/100.
Which has the better camera: the Redmi K90 Max or the Xiaomi 12S Ultra?
The Xiaomi 12S Ultra leads on camera score (70/100 vs 32/100).
Which is more powerful: the Redmi K90 Max or the Xiaomi 12S Ultra?
The Redmi K90 Max leads on performance (82/100 vs 24/100).
Should you choose the Redmi K90 Max over the Xiaomi 12S Ultra?
The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Xiaomi 12S Ultra is a better fit for everyday use.