Infinix Zero Ultra vs Redmi K90 Ultra
The Infinix Zero Ultra (2022) runs on the MediaTek Dimensity 920, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 61/100 vs 37/100 (a 24-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4500); the main camera is 200 MP vs 50 MP; the Redmi K90 Ultra has NFC for contactless payments, the Infinix Zero Ultra doesn't.
Infinix Zero Ultra
Redmi K90 Ultra
- Faster charging: 180W vs 100W
- Better main camera: 200MP vs 50MP
- Lighter: 213g vs 227g
- Better camera (54/100 vs 32/100)
- Better design/ergonomics (33/100 vs 16/100)
- Bigger battery: 8550 vs 4500 mAh
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (65/100 vs 0/100)
- Longer battery life (77/100 vs 49/100)
- Better value for money (81/100 vs 55/100)
Comparing the Infinix Zero Ultra vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 24 points higher (61/100 vs 37/100). In the "performance" category, the Redmi K90 Ultra leads (65/100 vs 0/100). In the "camera" category, the Infinix Zero Ultra leads (54/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra leads (77/100 vs 49/100). 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 Infinix Zero Ultra (65/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Infinix Zero Ultra notably outperforms the Redmi K90 Ultra (54/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Infinix Zero Ultra (77/100 vs 49/100). In the "design" category, the Infinix Zero Ultra notably outperforms the Redmi K90 Ultra (33/100 vs 16/100). In the "value for money" category, the Redmi K90 Ultra notably outperforms the Infinix Zero Ultra (81/100 vs 55/100).
| Specification | Infinix Zero Ultra | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 920 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 2760000 | |
| Geekbench Single | — | 3050 | |
| Geekbench Multi | — | 9300 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2400 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 4500 mAh | 8550 mAh | |
| Charging | 180W | 100W | |
| Main camera | 200 MP | 50 MP | |
| Ultrawide | 13 MP | 8 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 256GB | 256GB / 512GB | |
| OS | Android 12, XOS 12 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | no | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 165.5×74.5×8.8 mm | 162.9×77.9×8.2 mm | |
| Weight | 213 g | 227 g | |
| Price | — | $420 |
Infinix Zero Ultra
- Main: 200MP f/f/2.0
- Ultrawide: 13MP
- Front: 32MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Infinix Zero Ultra
- 6.8" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Infinix Zero Ultra
- 4500 mAh
- Wired: 180W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Infinix Zero Ultra
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Infinix Zero Ultra (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 Infinix Zero Ultra notably outperforms the Redmi K90 Ultra (54/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Infinix Zero Ultra (77/100 vs 49/100).
design
In the "design" category, the Infinix Zero Ultra notably outperforms the Redmi K90 Ultra (33/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 Ultra notably outperforms the Infinix Zero Ultra (81/100 vs 55/100).
Which is better: the Infinix Zero Ultra or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Infinix Zero Ultra by 24 points (61/100 vs 37/100).
What is the rating of the Infinix Zero Ultra and the Redmi K90 Ultra?
The Infinix Zero Ultra has a MobileRank rating of 37/100, the Redmi K90 Ultra — 61/100.
Which has the better camera: the Infinix Zero Ultra or the Redmi K90 Ultra?
The Infinix Zero Ultra leads on camera score (54/100 vs 32/100).
Which is more powerful: the Infinix Zero Ultra or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (65/100 vs 0/100).
Should you choose the Infinix Zero Ultra over the Redmi K90 Ultra?
The Infinix Zero Ultra is a better fit for everyday use. The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers.