Redmi K90 Ultra vs Xiaomi Mix Flip 2
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Mix Flip 2 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $420 and $830. By overall MobileRank rating, the Xiaomi Mix Flip 2 leads — 74/100 vs 73/100 (a 1-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5165); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 3,126,402); the Xiaomi Mix Flip 2 is noticeably lighter (199g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Xiaomi Mix Flip 2
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 3126402
- Bigger battery: 8550 vs 5165 mAh
- Faster charging: 100W vs 67W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper at launch: $420 vs $830
- Higher performance (92/100 vs 91/100)
- Longer battery life (78/100 vs 56/100)
- Better display (94/100 vs 85/100)
What makes Xiaomi Mix Flip 2 better?
- Lighter: 199g vs 227g
- Better camera (57/100 vs 37/100)
- Better portability (64/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Xiaomi Mix Flip 2, the Xiaomi Mix Flip 2 scores 1 points higher (74/100 vs 73/100). In the "camera" category, the Xiaomi Mix Flip 2 leads (57/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 56/100). Value score: Redmi K90 Ultra — 72/100, Xiaomi Mix Flip 2 — 62/100; 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 and the Xiaomi Mix Flip 2 are nearly equal (92/100 vs 91/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 85/100). In the "camera" category, the Xiaomi Mix Flip 2 notably outperforms the Redmi K90 Ultra (57/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Xiaomi Mix Flip 2 (78/100 vs 56/100). In the "portability" category, the Xiaomi Mix Flip 2 notably outperforms the Redmi K90 Ultra (64/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Xiaomi Mix Flip 2 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3233695 | 3126402 | |
| Geekbench Single | 3013 | 3013 | |
| Geekbench Multi | 9287 | 9287 | |
| Display | 6.8" AMOLED | 6.9" Foldable LTPO AMOLED | |
| Resolution | 1280x2772 | 1224x2912 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5165 mAh | |
| Charging | 100W | 67W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 | |
| Brightness (peak) | 3500 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 166.9×73.8×7.6 mm | |
| Weight | 227 g | 199 g | |
| Launch price | $420 | $830 |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Xiaomi Mix Flip 2
- Main: 50MP
- Ultrawide: 50MP
- Front: 32MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Xiaomi Mix Flip 2
- 6.9" Foldable LTPO AMOLED
- Resolution: 1224x2912
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Xiaomi Mix Flip 2
- 5165 mAh
- Wired: 67W
- No wireless charging
Overall performance score
We compared Redmi K90 Ultra and Xiaomi Mix Flip 2, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Xiaomi Mix Flip 2 by 3.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $410. Redmi K90 Ultra was $410 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra and the Xiaomi Mix Flip 2 are nearly equal (92/100 vs 91/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 85/100).
camera
In the "camera" category, the Xiaomi Mix Flip 2 notably outperforms the Redmi K90 Ultra (57/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Xiaomi Mix Flip 2 (78/100 vs 56/100).
portability
In the "portability" category, the Xiaomi Mix Flip 2 notably outperforms the Redmi K90 Ultra (64/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Xiaomi Mix Flip 2?
The Xiaomi Mix Flip 2 edges out the Redmi K90 Ultra by just 1 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Xiaomi Mix Flip 2?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Xiaomi Mix Flip 2 — 74/100.
Which has the better camera: the Redmi K90 Ultra or the Xiaomi Mix Flip 2?
The Xiaomi Mix Flip 2 leads on camera score (57/100 vs 37/100).
Should you choose the Redmi K90 Ultra over the Xiaomi Mix Flip 2?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Xiaomi Mix Flip 2 is a better fit for gamers and power users.