Nubia Z70 Ultra vs Redmi K90 Ultra
The Nubia Z70 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $729 and $420. By overall MobileRank rating, the Nubia Z70 Ultra leads — 81/100 vs 75/100 (a 6-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6150); the Nubia Z70 Ultra is faster in AnTuTu (3,126,402 vs 3,119,308).
Nubia Z70 Ultra
Redmi K90 Ultra
- Higher AnTuTu: 3126402 vs 3119308
- Better camera (79/100 vs 37/100)
- Bigger battery: 8550 vs 6150 mAh
- Faster charging: 100W vs 80W
- Higher refresh rate: 165Hz vs 144Hz
- Cheaper: $420 vs $729
- Longer battery life (92/100 vs 64/100)
- Better display (94/100 vs 92/100)
- Better portability (40/100 vs 36/100)
- Better value for money (86/100 vs 74/100)
Comparing the Nubia Z70 Ultra vs the Redmi K90 Ultra, the Nubia Z70 Ultra scores 6 points higher (81/100 vs 75/100). In the "camera" category, the Nubia Z70 Ultra leads (79/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 64/100). In the "value for money" category, the Redmi K90 Ultra leads (86/100 vs 74/100). In the "performance" category, both devices are on the same level — 92/100. In the "display" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (94/100 vs 92/100). In the "camera" category, the Nubia Z70 Ultra significantly outperforms the Redmi K90 Ultra (79/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Nubia Z70 Ultra (92/100 vs 64/100). In the "portability" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (40/100 vs 36/100). In the "value for money" category, the Redmi K90 Ultra is a bit better (86/100 vs 74/100).
| Specification | Nubia Z70 Ultra | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3126402 | 3119308 | |
| Geekbench Single | 3041 | 3041 | |
| Geekbench Multi | 9494 | 9494 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 2668x1216 | 1280x2772 | |
| Refresh rate | 144 Hz | 165 Hz | |
| Battery | 6150 mAh | 8550 mAh | |
| Charging | 80W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 64 MP | 0 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 2000 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 164.3×77.1×8.6 mm | 162.9×77.9×8.2 mm | |
| Weight | 227 g | 227 g | |
| Price | $729 | $420 |
Nubia Z70 Ultra
- Main: 50MP f/1.59
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Nubia Z70 Ultra
- 6.8" AMOLED
- Resolution: 2668x1216
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Nubia Z70 Ultra
- 6150 mAh
- NanoReview test: web browsing 8:27 hrs, total 20:13 hrs
- Wired: 80W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- Wireless charging: no data
We compared Nubia Z70 Ultra and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Nubia Z70 Ultra leads Redmi K90 Ultra by 0.2% in our overall performance rating.
Price difference: $309. Redmi K90 Ultra is cheaper by $309.
performance
In the "performance" category, both devices are on the same level — 92/100.
display
In the "display" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (94/100 vs 92/100).
camera
In the "camera" category, the Nubia Z70 Ultra significantly outperforms the Redmi K90 Ultra (79/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Nubia Z70 Ultra (92/100 vs 64/100).
portability
In the "portability" category, the Redmi K90 Ultra and the Nubia Z70 Ultra are nearly equal (40/100 vs 36/100).
value for money
In the "value for money" category, the Redmi K90 Ultra is a bit better (86/100 vs 74/100).
Which is better: the Nubia Z70 Ultra or the Redmi K90 Ultra?
The Nubia Z70 Ultra edges out the Redmi K90 Ultra by just 6 points — the two devices are very close in overall level.
What is the rating of the Nubia Z70 Ultra and the Redmi K90 Ultra?
The Nubia Z70 Ultra has a MobileRank rating of 81/100, the Redmi K90 Ultra — 75/100.
Which has the better camera: the Nubia Z70 Ultra or the Redmi K90 Ultra?
The Nubia Z70 Ultra leads on camera score (79/100 vs 37/100).
Should you choose the Nubia Z70 Ultra over the Redmi K90 Ultra?
The Nubia Z70 Ultra is a better fit for gamers and power users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.