Poco C85 4G vs Redmi K90 Ultra
The Poco C85 4G (2025) runs on the MediaTek Helio G81 Ultra, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 38/100 (a 35-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 358,608); the Poco C85 4G is noticeably lighter (205g vs 227g).
Profile comparison
Category scores
Poco C85 4G
Redmi K90 Ultra
What makes Poco C85 4G better?
- Lighter: 205g vs 227g
- Better portability (56/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 358608
- Better Geekbench Single: 3013 vs 432
- Better Geekbench Multi: 9287 vs 1416
- Bigger battery: 8550 vs 6000 mAh
- Faster charging: 100W vs 33W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 30/100)
- Better camera (37/100 vs 30/100)
- Longer battery life (78/100 vs 53/100)
- Better display (94/100 vs 55/100)
Comparison verdict
Comparing the Poco C85 4G vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 35 points higher (73/100 vs 38/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 30/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 53/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco C85 4G (92/100 vs 30/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Poco C85 4G (94/100 vs 55/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 30/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Poco C85 4G (78/100 vs 53/100). In the "portability" category, the Poco C85 4G notably outperforms the Redmi K90 Ultra (56/100 vs 40/100).
Specs comparison
| Specification | Poco C85 4G | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio G81 Ultra | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 358608 | 3233695 | |
| Geekbench Single | 432 | 3013 | |
| Geekbench Multi | 1416 | 9287 | |
| Display | 6.9" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1600 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 6000 mAh | 8550 mAh | |
| Charging | 33W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 15, HyperOS 2 | Android 16 | |
| Brightness (peak) | 810 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68/IP69 | |
| Dimensions | 171.6×79.5×8.0 mm | 162.9×77.9×8.2 mm | |
| Weight | 205 g | 227 g | |
| Launch price | — | $420 |
Camera comparison
Poco C85 4G
- Main: 50MP f/1.8
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Poco C85 4G
- 6.9" IPS LCD
- Resolution: 720x1600
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Poco C85 4G
- 6000 mAh
- Wired: 33W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Poco C85 4G and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Poco C85 4G by 88.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Poco C85 4G
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco C85 4G (92/100 vs 30/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Poco C85 4G (94/100 vs 55/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 30/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Poco C85 4G (78/100 vs 53/100).
portability
In the "portability" category, the Poco C85 4G notably outperforms the Redmi K90 Ultra (56/100 vs 40/100).
Frequently asked questions
Which is better: the Poco C85 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Poco C85 4G by 35 points (73/100 vs 38/100).
What is the rating of the Poco C85 4G and the Redmi K90 Ultra?
The Poco C85 4G has a MobileRank rating of 38/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Poco C85 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 30/100).
Which is more powerful: the Poco C85 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 30/100).
Should you choose the Poco C85 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.