Redmi K90 Ultra vs Vivo iQOO Z9 (India)
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO Z9 (India) (2024) runs on the MediaTek Dimensity 7200. By overall MobileRank rating, the Redmi K90 Ultra leads — 61/100 vs 30/100 (a 31-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra has NFC for contactless payments, the Vivo iQOO Z9 (India) doesn't; the Vivo iQOO Z9 (India) is noticeably lighter (188g vs 227g).
Redmi K90 Ultra
Vivo iQOO Z9 (India)
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (65/100 vs 0/100)
- Better camera (32/100 vs 27/100)
- Longer battery life (77/100 vs 42/100)
- Better value for money (81/100 vs 55/100)
- Lighter: 188g vs 227g
- Better design/ergonomics (65/100 vs 16/100)
Comparing the Redmi K90 Ultra vs the Vivo iQOO Z9 (India), the Redmi K90 Ultra scores 31 points higher (61/100 vs 30/100). 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 42/100). 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 Z9 (India) (65/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi K90 Ultra is a bit better (32/100 vs 27/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z9 (India) (77/100 vs 42/100). In the "design" category, the Vivo iQOO Z9 (India) significantly outperforms the Redmi K90 Ultra (65/100 vs 16/100). In the "value for money" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z9 (India) (81/100 vs 55/100).
| Specification | Redmi K90 Ultra | Vivo iQOO Z9 (India) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 7200 | |
| AnTuTu | 2760000 | — | |
| Geekbench Single | 3050 | — | |
| Geekbench Multi | 9300 | — | |
| Display | 6.8" AMOLED | 6.7" AMOLED | |
| Resolution | 1280x2772 | 1080x2400 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 14, Funtouch 14 | |
| Brightness (peak) | 3500 nits | 1800 nits | |
| NFC | yes | no | |
| Protection | IP68/IP69 | IP54 | |
| Dimensions | 162.9×77.9×8.2 mm | 163.2×75.8×7.8 mm | |
| Weight | 227 g | 188 g | |
| Price | $420 | — |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO Z9 (India)
- Main: 50MP f/f/1.8
- Front: 16MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo iQOO Z9 (India)
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO Z9 (India)
- 5000 mAh
- Wired: 44W
- No wireless charging
Vivo iQOO Z9 (India)
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z9 (India) (65/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (32/100 vs 27/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Vivo iQOO Z9 (India) (77/100 vs 42/100).
design
In the "design" category, the Vivo iQOO Z9 (India) significantly outperforms the Redmi K90 Ultra (65/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 Ultra notably outperforms the Vivo iQOO Z9 (India) (81/100 vs 55/100).
Which is better: the Redmi K90 Ultra or the Vivo iQOO Z9 (India)?
The Redmi K90 Ultra significantly outperforms the Vivo iQOO Z9 (India) by 31 points (61/100 vs 30/100).
What is the rating of the Redmi K90 Ultra and the Vivo iQOO Z9 (India)?
The Redmi K90 Ultra has a MobileRank rating of 61/100, the Vivo iQOO Z9 (India) — 30/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo iQOO Z9 (India)?
The Redmi K90 Ultra leads on camera score (32/100 vs 27/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo iQOO Z9 (India)?
The Redmi K90 Ultra leads on performance (65/100 vs 0/100).
Should you choose the Redmi K90 Ultra over the Vivo iQOO Z9 (India)?
The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers. The Vivo iQOO Z9 (India) is a better fit for everyday use.