Infinix Zero 40 vs Redmi K90 Ultra
The Infinix Zero 40 (2024) runs on the MediaTek Dimensity 8200 Ultimate, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 75/100 vs 66/100 (a 9-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the main camera is 108 MP vs 50 MP; the Infinix Zero 40 is noticeably lighter (195g vs 227g).
Infinix Zero 40
Redmi K90 Ultra
- Better main camera: 108MP vs 50MP
- Lighter: 195g vs 227g
- Better camera (69/100 vs 37/100)
- Better portability (63/100 vs 40/100)
- Better Geekbench Single: 3041 vs 1256
- Better Geekbench Multi: 9494 vs 4207
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 45W
- Higher refresh rate: 165Hz vs 144Hz
- Higher performance (92/100 vs 61/100)
- Longer battery life (92/100 vs 57/100)
- Better display (94/100 vs 89/100)
Comparing the Infinix Zero 40 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 9 points higher (75/100 vs 66/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 61/100). In the "camera" category, the Infinix Zero 40 leads (69/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 57/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Infinix Zero 40 (92/100 vs 61/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 89/100). In the "camera" category, the Infinix Zero 40 significantly outperforms the Redmi K90 Ultra (69/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Infinix Zero 40 (92/100 vs 57/100). In the "portability" category, the Infinix Zero 40 notably outperforms the Redmi K90 Ultra (63/100 vs 40/100).
| Specification | Infinix Zero 40 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 8200 Ultimate | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 3119308 | |
| Geekbench Single | 1256 | 3041 | |
| Geekbench Multi | 4207 | 9494 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2436 | 1280x2772 | |
| Refresh rate | 144 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 45W | 100W | |
| Wireless charging | 20W | — | |
| Main camera | 108 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Front camera | 50 MP | 20 MP | |
| RAM | 12GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 14, up to 2 major Android upgrades, XOS 14.5 | Android 16 | |
| Brightness (peak) | 1300 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP54 | IP68/IP69 | |
| Dimensions | 164.3×74.8×7.9 mm | 162.9×77.9×8.2 mm | |
| Weight | 195 g | 227 g | |
| Price | — | $420 |
Infinix Zero 40
- Main: 108MP f/f/1.8
- Ultrawide: 50MP
- Front: 50MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Infinix Zero 40
- 6.8" AMOLED
- Resolution: 1080x2436
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Infinix Zero 40
- 5000 mAh
- Wired: 45W
- Wireless: 20W
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- Wireless charging: no data
Infinix Zero 40
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Infinix Zero 40 (92/100 vs 61/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 89/100).
camera
In the "camera" category, the Infinix Zero 40 significantly outperforms the Redmi K90 Ultra (69/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Infinix Zero 40 (92/100 vs 57/100).
portability
In the "portability" category, the Infinix Zero 40 notably outperforms the Redmi K90 Ultra (63/100 vs 40/100).
Which is better: the Infinix Zero 40 or the Redmi K90 Ultra?
The Redmi K90 Ultra edges out the Infinix Zero 40 by just 9 points — the two devices are very close in overall level.
What is the rating of the Infinix Zero 40 and the Redmi K90 Ultra?
The Infinix Zero 40 has a MobileRank rating of 66/100, the Redmi K90 Ultra — 75/100.
Which has the better camera: the Infinix Zero 40 or the Redmi K90 Ultra?
The Infinix Zero 40 leads on camera score (69/100 vs 37/100).
Which is more powerful: the Infinix Zero 40 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 61/100).
Should you choose the Infinix Zero 40 over the Redmi K90 Ultra?
The Infinix Zero 40 is a better fit for active users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.