Nubia Flip3 vs Redmi K90 Ultra
The Nubia Flip3 (2026) runs on the MediaTek Dimensity 7400X, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $450 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 54/100 (a 19-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4610); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 953,150); the Nubia Flip3 is noticeably lighter (187g vs 227g).
Profile comparison
Category scores
Nubia Flip3
Redmi K90 Ultra
What makes Nubia Flip3 better?
- Lighter: 187g vs 227g
- Better camera (42/100 vs 37/100)
- Better portability (72/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 953150
- Better Geekbench Single: 3013 vs 1061
- Better Geekbench Multi: 9287 vs 3185
- Bigger battery: 8550 vs 4610 mAh
- Faster charging: 100W vs 33W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper at launch: $420 vs $450
- Higher performance (92/100 vs 57/100)
- Longer battery life (78/100 vs 38/100)
- Better display (94/100 vs 83/100)
Comparison verdict
Comparing the Nubia Flip3 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 19 points higher (73/100 vs 54/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 57/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 38/100). Value score: Nubia Flip3 — 32/100, Redmi K90 Ultra — 72/100; 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 significantly outperforms the Nubia Flip3 (92/100 vs 57/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 83/100). In the "camera" category, the Nubia Flip3 is a bit better (42/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Nubia Flip3 (78/100 vs 38/100). In the "portability" category, the Nubia Flip3 significantly outperforms the Redmi K90 Ultra (72/100 vs 40/100).
Specs comparison
| Specification | Nubia Flip3 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 7400X | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 953150 | 3233695 | |
| Geekbench Single | 1061 | 3013 | |
| Geekbench Multi | 3185 | 9287 | |
| Display | 6.9" Foldable OLED | 6.8" AMOLED | |
| Resolution | 1188x2790 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 4610 mAh | 8550 mAh | |
| Charging | 33W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 12 MP | 8 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP54 | IP68/IP69 | |
| Dimensions | 170.0×76.0×7.5 mm | 162.9×77.9×8.2 mm | |
| Weight | 187 g | 227 g | |
| Launch price | $450 | $420 |
Camera comparison
Nubia Flip3
- Main: 50MP f/1.6
- Ultrawide: 12MP
- Front: 32MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Nubia Flip3
- 6.9" Foldable OLED
- Resolution: 1188x2790
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Nubia Flip3
- 4610 mAh
- Wired: 33W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Nubia Flip3 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Nubia Flip3 by 70.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $30. Redmi K90 Ultra was $30 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Nubia Flip3 (92/100 vs 57/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 83/100).
camera
In the "camera" category, the Nubia Flip3 is a bit better (42/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Nubia Flip3 (78/100 vs 38/100).
portability
In the "portability" category, the Nubia Flip3 significantly outperforms the Redmi K90 Ultra (72/100 vs 40/100).
Frequently asked questions
Which is better: the Nubia Flip3 or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the Nubia Flip3 — the overall rating gap is 19 points.
What is the rating of the Nubia Flip3 and the Redmi K90 Ultra?
The Nubia Flip3 has a MobileRank rating of 54/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Nubia Flip3 or the Redmi K90 Ultra?
The Nubia Flip3 leads on camera score (42/100 vs 37/100).
Which is more powerful: the Nubia Flip3 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 57/100).
Should you choose the Nubia Flip3 over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.