Nubia Z50 Ultra vs Redmi K90
The Nubia Z50 Ultra (2023) runs on the Qualcomm Snapdragon 8 Gen 2, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 73/100 (a 3-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5000); the main camera is 64 MP vs 50 MP; the Redmi K90 is faster in AnTuTu (3,077,585 vs 1,842,269); the Redmi K90 is noticeably lighter (206g vs 228g).
Profile comparison
Category scores
Nubia Z50 Ultra
Redmi K90
What makes Nubia Z50 Ultra better?
- Better main camera: 64MP vs 50MP
- Better camera (86/100 vs 58/100)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 1842269
- Better Geekbench Single: 3013 vs 2004
- Better Geekbench Multi: 9287 vs 5311
- Bigger battery: 7100 vs 5000 mAh
- Faster charging: 100W vs 80W
- Lighter: 206g vs 228g
- Higher performance (91/100 vs 76/100)
- Longer battery life (72/100 vs 56/100)
- Better display (82/100 vs 80/100)
- Better portability (55/100 vs 40/100)
Comparison verdict
Comparing the Nubia Z50 Ultra vs the Redmi K90, the Redmi K90 scores 3 points higher (76/100 vs 73/100). In the "performance" category, the Redmi K90 leads (91/100 vs 76/100). In the "camera" category, the Nubia Z50 Ultra leads (86/100 vs 58/100). In the "battery" category, the Redmi K90 leads (72/100 vs 56/100). In the "performance" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (91/100 vs 76/100). In the "display" category, the Redmi K90 and the Nubia Z50 Ultra are nearly equal (82/100 vs 80/100). In the "camera" category, the Nubia Z50 Ultra notably outperforms the Redmi K90 (86/100 vs 58/100). In the "battery" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (72/100 vs 56/100). In the "portability" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (55/100 vs 40/100).
Specs comparison
| Specification | Nubia Z50 Ultra | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 2 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1842269 | 3077585 | |
| Geekbench Single | 2004 | 3013 | |
| Geekbench Multi | 5311 | 9287 | |
| Display | 6.8" AMOLED | 6.6" AMOLED | |
| Resolution | 1116x2480 | 2510x1156 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5000 mAh | 7100 mAh | |
| Charging | 80W | 100W | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 64 MP | 50 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 8GB / 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 13, MyOS 13 | Android 16 | |
| Brightness (peak) | 1500 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 163.9×76.3×8.3 mm | 157.5×75.3×8.0 mm | |
| Weight | 228 g | 206 g | |
| Launch price | — | $401 |
Camera comparison
Nubia Z50 Ultra
- Main: 64MP f/1.6
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 16MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Nubia Z50 Ultra
- 6.8" AMOLED
- Resolution: 1116x2480
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Nubia Z50 Ultra
- 5000 mAh
- Wired: 80W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Nubia Z50 Ultra and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Nubia Z50 Ultra by 40.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Nubia Z50 Ultra
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (91/100 vs 76/100).
display
In the "display" category, the Redmi K90 and the Nubia Z50 Ultra are nearly equal (82/100 vs 80/100).
camera
In the "camera" category, the Nubia Z50 Ultra notably outperforms the Redmi K90 (86/100 vs 58/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (72/100 vs 56/100).
portability
In the "portability" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (55/100 vs 40/100).
Frequently asked questions
Which is better: the Nubia Z50 Ultra or the Redmi K90?
The Redmi K90 edges out the Nubia Z50 Ultra by just 3 points — the two devices are very close in overall level.
What is the rating of the Nubia Z50 Ultra and the Redmi K90?
The Nubia Z50 Ultra has a MobileRank rating of 73/100, the Redmi K90 — 76/100.
Which has the better camera: the Nubia Z50 Ultra or the Redmi K90?
The Nubia Z50 Ultra leads on camera score (86/100 vs 58/100).
Which is more powerful: the Nubia Z50 Ultra or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 76/100).
Should you choose the Nubia Z50 Ultra over the Redmi K90?
The Nubia Z50 Ultra is a better fit for active users, mobile photography enthusiasts. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.