Infinix Hot 40i vs Redmi K90 Ultra
The Infinix Hot 40i (2024) runs on the Unisoc T606, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $100 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 29/100 (a 44-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the main camera is 13 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 333,647); the Infinix Hot 40i is noticeably lighter (190g vs 227g).
Profile comparison
Category scores
Infinix Hot 40i
Redmi K90 Ultra
What makes Infinix Hot 40i better?
- Lighter: 190g vs 227g
- Cheaper at launch: $100 vs $420
- Better portability (62/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 333647
- Better Geekbench Single: 3013 vs 378
- Better Geekbench Multi: 9287 vs 1335
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 13MP
- Higher refresh rate: 165Hz vs 90Hz
- Higher performance (92/100 vs 27/100)
- Better camera (37/100 vs 10/100)
- Longer battery life (78/100 vs 43/100)
- Better display (94/100 vs 44/100)
Comparison verdict
Comparing the Infinix Hot 40i vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 44 points higher (73/100 vs 29/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 27/100). In the "camera" category, the Redmi K90 Ultra leads (37/100 vs 10/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 43/100). Value score: Infinix Hot 40i — 46/100, Redmi K90 Ultra — 72/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 Ultra significantly outperforms the Infinix Hot 40i (92/100 vs 27/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Infinix Hot 40i (94/100 vs 44/100). In the "camera" category, the Redmi K90 Ultra notably outperforms the Infinix Hot 40i (37/100 vs 10/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Infinix Hot 40i (78/100 vs 43/100). In the "portability" category, the Infinix Hot 40i notably outperforms the Redmi K90 Ultra (62/100 vs 40/100).
Specs comparison
| Specification | Infinix Hot 40i | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Unisoc T606 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 333647 | 3233695 | |
| Geekbench Single | 378 | 3013 | |
| Geekbench Multi | 1335 | 9287 | |
| Display | 6.6" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1612 | 1280x2772 | |
| Refresh rate | 90 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 18W | 100W | |
| Main camera | 13 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 4GB / 8GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB | |
| OS | Android 13, XOS 13 | Android 16 | |
| Brightness (peak) | 480 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 163.6×75.6×8.3 mm | 162.9×77.9×8.2 mm | |
| Weight | 190 g | 227 g | |
| Launch price | $100 | $420 |
Camera comparison
Infinix Hot 40i
- Main: 13MP
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Infinix Hot 40i
- 6.6" IPS LCD
- Resolution: 720x1612
- Refresh rate: 90 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Infinix Hot 40i
- 5000 mAh
- Wired: 18W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Infinix Hot 40i and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Infinix Hot 40i by 89.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $320. Infinix Hot 40i was $320 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Infinix Hot 40i (92/100 vs 27/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Infinix Hot 40i (94/100 vs 44/100).
camera
In the "camera" category, the Redmi K90 Ultra notably outperforms the Infinix Hot 40i (37/100 vs 10/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Infinix Hot 40i (78/100 vs 43/100).
portability
In the "portability" category, the Infinix Hot 40i notably outperforms the Redmi K90 Ultra (62/100 vs 40/100).
Frequently asked questions
Which is better: the Infinix Hot 40i or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Infinix Hot 40i by 44 points (73/100 vs 29/100).
What is the rating of the Infinix Hot 40i and the Redmi K90 Ultra?
The Infinix Hot 40i has a MobileRank rating of 29/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Infinix Hot 40i or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 10/100).
Which is more powerful: the Infinix Hot 40i or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 27/100).
Should you choose the Infinix Hot 40i over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.