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; launch prices were $729 and $401. By overall MobileRank rating, the Nubia Z70 Ultra leads — 80/100 vs 76/100 (a 4-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 3,077,585); the Redmi K90 is noticeably lighter (206g vs 227g).
Profile comparison
Category scores
Nubia Z70 Ultra
Redmi K90
What makes Nubia Z70 Ultra better?
- Higher AnTuTu: 3126402 vs 3077585
- Higher refresh rate: 144Hz vs 120Hz
- Better camera (79/100 vs 58/100)
- Better display (92/100 vs 82/100)
What makes Redmi K90 better?
- Bigger battery: 7100 vs 6150 mAh
- Faster charging: 100W vs 80W
- Lighter: 206g vs 227g
- Cheaper at launch: $401 vs $729
- Longer battery life (72/100 vs 64/100)
- Better portability (55/100 vs 36/100)
Comparison verdict
Comparing the Nubia Z70 Ultra vs the Redmi K90, the Nubia Z70 Ultra scores 4 points higher (80/100 vs 76/100). In the "camera" category, the Nubia Z70 Ultra leads (79/100 vs 58/100). Value score: Nubia Z70 Ultra — 74/100, Redmi K90 — 80/100; 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, both devices are on the same level — 91/100. In the "display" category, the Nubia Z70 Ultra is a bit better (92/100 vs 82/100). In the "camera" category, the Nubia Z70 Ultra notably outperforms the Redmi K90 (79/100 vs 58/100). In the "battery" category, the Redmi K90 is a bit better (72/100 vs 64/100). In the "portability" category, the Redmi K90 notably outperforms the Nubia Z70 Ultra (55/100 vs 36/100).
Specs comparison
| Specification | Nubia Z70 Ultra | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3126402 | 3077585 | |
| Geekbench Single | 3013 | 3013 | |
| Geekbench Multi | 9287 | 9287 | |
| 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 | |
| Launch price | $729 | $401 |
Camera comparison
Nubia Z70 Ultra
- Main: 50MP f/1.59
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 16MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Nubia Z70 Ultra
- 6.8" AMOLED
- Resolution: 2668x1216
- Refresh rate: 144 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
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
Overall performance score
We compared Nubia Z70 Ultra and Redmi K90, covering their specs and all relevant benchmarks.
Nubia Z70 Ultra leads Redmi K90 by 1.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $328. Redmi K90 was $328 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, both devices are on the same level — 91/100.
display
In the "display" category, the Nubia Z70 Ultra is a bit better (92/100 vs 82/100).
camera
In the "camera" category, the Nubia Z70 Ultra notably outperforms the Redmi K90 (79/100 vs 58/100).
battery
In the "battery" category, the Redmi K90 is a bit better (72/100 vs 64/100).
portability
In the "portability" category, the Redmi K90 notably outperforms the Nubia Z70 Ultra (55/100 vs 36/100).
Frequently asked questions
Which is better: the Nubia Z70 Ultra or the Redmi K90?
The Nubia Z70 Ultra edges out the Redmi K90 by just 4 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 80/100, the Redmi K90 — 76/100.
Which has the better camera: the Nubia Z70 Ultra or the Redmi K90?
The Nubia Z70 Ultra leads on camera score (79/100 vs 58/100).
Should you choose the Nubia Z70 Ultra over the Redmi K90?
The Nubia Z70 Ultra is a better fit for gamers and power users. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.