Infinix Note 50 Pro 4G vs Redmi K90 Ultra
The Infinix Note 50 Pro 4G (2025) runs on the Helio G100 Ultimate, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $195 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 55/100 (a 18-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5200); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 575,630); the Infinix Note 50 Pro 4G is noticeably lighter (198g vs 227g).
Profile comparison
Category scores
Infinix Note 50 Pro 4G
Redmi K90 Ultra
What makes Infinix Note 50 Pro 4G better?
- Lighter: 198g vs 227g
- Cheaper at launch: $195 vs $420
- Better camera (40/100 vs 37/100)
- Better portability (67/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 575630
- Better Geekbench Single: 3013 vs 727
- Better Geekbench Multi: 9287 vs 2014
- Bigger battery: 8550 vs 5200 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 165Hz vs 144Hz
- Higher performance (92/100 vs 44/100)
- Longer battery life (78/100 vs 73/100)
- Better display (94/100 vs 89/100)
Comparison verdict
Comparing the Infinix Note 50 Pro 4G vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 18 points higher (73/100 vs 55/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 44/100). Value score: Infinix Note 50 Pro 4G — 72/100, 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 Note 50 Pro 4G (92/100 vs 44/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 89/100). In the "camera" category, the Infinix Note 50 Pro 4G and the Redmi K90 Ultra are nearly equal (40/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 73/100). In the "portability" category, the Infinix Note 50 Pro 4G notably outperforms the Redmi K90 Ultra (67/100 vs 40/100).
Specs comparison
| Specification | Infinix Note 50 Pro 4G | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Helio G100 Ultimate | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 575630 | 3233695 | |
| Geekbench Single | 727 | 3013 | |
| Geekbench Multi | 2014 | 9287 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2436 | 1280x2772 | |
| Refresh rate | 144 Hz | 165 Hz | |
| Battery | 5200 mAh | 8550 mAh | |
| Charging | 90W | 100W | |
| Wireless charging | 30W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 256GB | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 1300 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68/IP69 | |
| Dimensions | 163.3×74.4×7.3 mm | 162.9×77.9×8.2 mm | |
| Weight | 198 g | 227 g | |
| Launch price | $195 | $420 |
Camera comparison
Infinix Note 50 Pro 4G
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 32MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Infinix Note 50 Pro 4G
- 6.8" AMOLED
- Resolution: 1080x2436
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Infinix Note 50 Pro 4G
- 5200 mAh
- Wired: 90W
- Wireless: 30W
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Infinix Note 50 Pro 4G and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Infinix Note 50 Pro 4G by 82.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $225. Infinix Note 50 Pro 4G was $225 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Infinix Note 50 Pro 4G (92/100 vs 44/100).
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 Note 50 Pro 4G and the Redmi K90 Ultra are nearly equal (40/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 73/100).
portability
In the "portability" category, the Infinix Note 50 Pro 4G notably outperforms the Redmi K90 Ultra (67/100 vs 40/100).
Frequently asked questions
Which is better: the Infinix Note 50 Pro 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the Infinix Note 50 Pro 4G — the overall rating gap is 18 points.
What is the rating of the Infinix Note 50 Pro 4G and the Redmi K90 Ultra?
The Infinix Note 50 Pro 4G has a MobileRank rating of 55/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Infinix Note 50 Pro 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 44/100).
Should you choose the Infinix Note 50 Pro 4G over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.