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; estimated prices are $570 and $401. By overall MobileRank rating, the Redmi K90 leads — 68/100 vs 57/100 (a 11-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 (3,088,357 vs 1,842,269); the Redmi K90 is noticeably lighter (206g vs 228g).
Nubia Z50 Ultra
Redmi K90
- Better main camera: 64MP vs 50MP
- Better camera (83/100 vs 53/100)
- Higher AnTuTu: 3088357 vs 1842269
- Better Geekbench Single: 3050 vs 2004
- Better Geekbench Multi: 9300 vs 5311
- Bigger battery: 7100 vs 5000 mAh
- Faster charging: 100W vs 80W
- Lighter: 206g vs 228g
- Cheaper: $401 vs $570
- Higher performance (69/100 vs 31/100)
- Longer battery life (71/100 vs 51/100)
- Better design/ergonomics (42/100 vs 15/100)
- Better value for money (82/100 vs 71/100)
Comparing the Nubia Z50 Ultra vs the Redmi K90, the Redmi K90 scores 11 points higher (68/100 vs 57/100). In the "performance" category, the Redmi K90 leads (69/100 vs 31/100). In the "camera" category, the Nubia Z50 Ultra leads (83/100 vs 53/100). In the "battery" category, the Redmi K90 leads (71/100 vs 51/100). In the "value for money" category, the Redmi K90 leads (82/100 vs 71/100). In the "performance" category, the Redmi K90 significantly outperforms the Nubia Z50 Ultra (69/100 vs 31/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Nubia Z50 Ultra significantly outperforms the Redmi K90 (83/100 vs 53/100). In the "battery" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (71/100 vs 51/100). In the "design" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (42/100 vs 15/100). In the "value for money" category, the Redmi K90 is a bit better (82/100 vs 71/100).
| Specification | Nubia Z50 Ultra | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 2 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1842269 | 3088357 | |
| Geekbench Single | 2004 | 3050 | |
| Geekbench Multi | 5311 | 9300 | |
| 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 | |
| Price | $570 | $401 |
Nubia Z50 Ultra
- Main: 64MP f/f/1.6
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 16MP
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Nubia Z50 Ultra
- 6.8" AMOLED
- Resolution: 1116x2480
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Nubia Z50 Ultra
- 5000 mAh
- Wired: 80W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
We compared Nubia Z50 Ultra and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Nubia Z50 Ultra by 40.3% in our overall performance rating.
Price difference: $169. Redmi K90 is cheaper by $169.
performance
In the "performance" category, the Redmi K90 significantly outperforms the Nubia Z50 Ultra (69/100 vs 31/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Nubia Z50 Ultra significantly outperforms the Redmi K90 (83/100 vs 53/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (71/100 vs 51/100).
design
In the "design" category, the Redmi K90 notably outperforms the Nubia Z50 Ultra (42/100 vs 15/100).
value for money
In the "value for money" category, the Redmi K90 is a bit better (82/100 vs 71/100).
Which is better: the Nubia Z50 Ultra or the Redmi K90?
The Redmi K90 is noticeably better than the Nubia Z50 Ultra — the overall rating gap is 11 points.
What is the rating of the Nubia Z50 Ultra and the Redmi K90?
The Nubia Z50 Ultra has a MobileRank rating of 57/100, the Redmi K90 — 68/100.
Which has the better camera: the Nubia Z50 Ultra or the Redmi K90?
The Nubia Z50 Ultra leads on camera score (83/100 vs 53/100).
Which is more powerful: the Nubia Z50 Ultra or the Redmi K90?
The Redmi K90 leads on performance (69/100 vs 31/100).
Should you choose the Nubia Z50 Ultra over the Redmi K90?
The Nubia Z50 Ultra is a better fit for mobile photography enthusiasts. The Redmi K90 is a better fit for active users, budget-conscious buyers.