Redmi K90 Ultra vs Vivo iQOO Z7
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO Z7 (2023) runs on the MediaTek Dimensity 920. By overall MobileRank rating, the Redmi K90 Ultra leads — 61/100 vs 26/100 (a 35-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4500); the main camera is 50 MP vs 64 MP; the Redmi K90 Ultra has NFC for contactless payments, the Vivo iQOO Z7 doesn't; the Vivo iQOO Z7 is noticeably lighter (173g vs 227g).
Redmi K90 Ultra
Vivo iQOO Z7
- Bigger battery: 8550 vs 4500 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 165Hz vs 90Hz
- Higher performance (65/100 vs 0/100)
- Longer battery life (77/100 vs 30/100)
- Better display (100/100 vs 50/100)
- Better value for money (81/100 vs 55/100)
- Better main camera: 64MP vs 50MP
- Lighter: 173g vs 227g
- Better camera (37/100 vs 32/100)
- Better design/ergonomics (83/100 vs 16/100)
Comparing the Redmi K90 Ultra vs the Vivo iQOO Z7, the Redmi K90 Ultra scores 35 points higher (61/100 vs 26/100). In the "performance" category, the Redmi K90 Ultra leads (65/100 vs 0/100). In the "battery" category, the Redmi K90 Ultra leads (77/100 vs 30/100). In the "value for money" category, the Redmi K90 Ultra leads (81/100 vs 55/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (65/100 vs 0/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (100/100 vs 50/100). In the "camera" category, the Vivo iQOO Z7 is a bit better (37/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (77/100 vs 30/100). In the "design" category, the Vivo iQOO Z7 significantly outperforms the Redmi K90 Ultra (83/100 vs 16/100). In the "value for money" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z7 (81/100 vs 55/100).
| Specification | Redmi K90 Ultra | Vivo iQOO Z7 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 920 | |
| AnTuTu | 2760000 | — | |
| Geekbench Single | 3050 | — | |
| Geekbench Multi | 9300 | — | |
| Display | 6.8" AMOLED | 6.4" AMOLED | |
| Resolution | 1280x2772 | 1080x2400 | |
| Refresh rate | 165 Hz | 90 Hz | |
| Battery | 8550 mAh | 4500 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB | 128GB | |
| OS | Android 16 | Android 13, Funtouch 13 | |
| Brightness (peak) | 3500 nits | 1300 nits | |
| NFC | yes | no | |
| Protection | IP68/IP69 | IP54 | |
| Dimensions | 162.9×77.9×8.2 mm | 158.9×73.5×7.8 mm | |
| Weight | 227 g | 173 g | |
| Price | $420 | — |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO Z7
- Main: 64MP
- Front: 16MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo iQOO Z7
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO Z7
- 4500 mAh
- Wired: 44W
- No wireless charging
Vivo iQOO Z7
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (65/100 vs 0/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (100/100 vs 50/100).
camera
In the "camera" category, the Vivo iQOO Z7 is a bit better (37/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 (77/100 vs 30/100).
design
In the "design" category, the Vivo iQOO Z7 significantly outperforms the Redmi K90 Ultra (83/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z7 (81/100 vs 55/100).
Which is better: the Redmi K90 Ultra or the Vivo iQOO Z7?
The Redmi K90 Ultra significantly outperforms the Vivo iQOO Z7 by 35 points (61/100 vs 26/100).
What is the rating of the Redmi K90 Ultra and the Vivo iQOO Z7?
The Redmi K90 Ultra has a MobileRank rating of 61/100, the Vivo iQOO Z7 — 26/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo iQOO Z7?
The Vivo iQOO Z7 leads on camera score (37/100 vs 32/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo iQOO Z7?
The Redmi K90 Ultra leads on performance (65/100 vs 0/100).
Should you choose the Redmi K90 Ultra over the Vivo iQOO Z7?
The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers. The Vivo iQOO Z7 is a better fit for everyday use.