Nubia Z70 Ultra vs Redmi K90
The Nubia Z70 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $729 and $401. By overall MobileRank rating, the Nubia Z70 Ultra leads — 70/100 vs 68/100 (a 2-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 6150); the Nubia Z70 Ultra is faster in AnTuTu (3,126,402 vs 3,088,357); the Redmi K90 is noticeably lighter (206g vs 227g).
Nubia Z70 Ultra
Redmi K90
- Higher AnTuTu: 3126402 vs 3088357
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (70/100 vs 69/100)
- Better camera (74/100 vs 53/100)
- Bigger battery: 7100 vs 6150 mAh
- Faster charging: 100W vs 80W
- Lighter: 206g vs 227g
- Cheaper: $401 vs $729
- Longer battery life (71/100 vs 61/100)
- Better design/ergonomics (42/100 vs 16/100)
- Better value for money (82/100 vs 60/100)
Comparing the Nubia Z70 Ultra vs the Redmi K90, the Nubia Z70 Ultra scores 2 points higher (70/100 vs 68/100). In the "camera" category, the Nubia Z70 Ultra leads (74/100 vs 53/100). In the "battery" category, the Redmi K90 leads (71/100 vs 61/100). In the "value for money" category, the Redmi K90 leads (82/100 vs 60/100). In the "performance" category, the Nubia Z70 Ultra and the Redmi K90 are nearly equal (70/100 vs 69/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Nubia Z70 Ultra notably outperforms the Redmi K90 (74/100 vs 53/100). In the "battery" category, the Redmi K90 is a bit better (71/100 vs 61/100). In the "design" category, the Redmi K90 notably outperforms the Nubia Z70 Ultra (42/100 vs 16/100). In the "value for money" category, the Redmi K90 notably outperforms the Nubia Z70 Ultra (82/100 vs 60/100).
| Specification | Nubia Z70 Ultra | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3126402 | 3088357 | |
| Geekbench Single | 3050 | 3050 | |
| Geekbench Multi | 9300 | 9300 | |
| Display | 6.8" AMOLED | 6.6" AMOLED | |
| Resolution | 2668x1216 | 2510x1156 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 6150 mAh | 7100 mAh | |
| Charging | 80W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 64 MP | 50 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 | |
| Dimensions | 164.3×77.1×8.6 mm | 157.5×75.3×8.0 mm | |
| Weight | 227 g | 206 g | |
| Price | $729 | $401 |
Nubia Z70 Ultra
- Main: 50MP f/1.59
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 16MP
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Nubia Z70 Ultra
- 6.8" AMOLED
- Resolution: 2668x1216
- Refresh rate: 144 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Nubia Z70 Ultra
- 6150 mAh
- NanoReview test: web browsing 8:27 hrs, total 20:13 hrs
- Wired: 80W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
We compared Nubia Z70 Ultra and Redmi K90, covering their specs and all relevant benchmarks.
Nubia Z70 Ultra leads Redmi K90 by 1.2% in our overall performance rating.
Price difference: $328. Redmi K90 is cheaper by $328.
performance
In the "performance" category, the Nubia Z70 Ultra and the Redmi K90 are nearly equal (70/100 vs 69/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Nubia Z70 Ultra notably outperforms the Redmi K90 (74/100 vs 53/100).
battery
In the "battery" category, the Redmi K90 is a bit better (71/100 vs 61/100).
design
In the "design" category, the Redmi K90 notably outperforms the Nubia Z70 Ultra (42/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 notably outperforms the Nubia Z70 Ultra (82/100 vs 60/100).
Which is better: the Nubia Z70 Ultra or the Redmi K90?
The Nubia Z70 Ultra edges out the Redmi K90 by just 2 points — the two devices are very close in overall level.
What is the rating of the Nubia Z70 Ultra and the Redmi K90?
The Nubia Z70 Ultra has a MobileRank rating of 70/100, the Redmi K90 — 68/100.
Which has the better camera: the Nubia Z70 Ultra or the Redmi K90?
The Nubia Z70 Ultra leads on camera score (74/100 vs 53/100).
Should you choose the Nubia Z70 Ultra over the Redmi K90?
The Nubia Z70 Ultra is a better fit for active users. The Redmi K90 is a better fit for active users, budget-conscious buyers.