Poco C55 vs Redmi K90 Ultra
The Poco C55 (2023) runs on the MediaTek Helio G85, 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 35/100 (a 38-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 346,495); the Redmi K90 Ultra has NFC for contactless payments, the Poco C55 doesn't; the Poco C55 is noticeably lighter (192g vs 227g).
Poco C55
Redmi K90 Ultra
- Lighter: 192g vs 227g
- Better portability (56/100 vs 40/100)
- Higher AnTuTu: 3233695 vs 346495
- Better Geekbench Single: 3041 vs 420
- Better Geekbench Multi: 9494 vs 1364
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 10W
- Higher performance (92/100 vs 29/100)
- Longer battery life (78/100 vs 43/100)
- Better display (94/100 vs 39/100)
Comparing the Poco C55 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 38 points higher (73/100 vs 35/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 29/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 43/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco C55 (92/100 vs 29/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Poco C55 (94/100 vs 39/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Poco C55 (78/100 vs 43/100). In the "portability" category, the Poco C55 notably outperforms the Redmi K90 Ultra (56/100 vs 40/100).
| Specification | Poco C55 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio G85 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 346495 | 3233695 | |
| Geekbench Single | 420 | 3041 | |
| Geekbench Multi | 1364 | 9494 | |
| Display | 6.7" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1650 | 1280x2772 | |
| Refresh rate | — | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 10W | 100W | |
| Main camera | — | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 5 MP | 20 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB | |
| OS | Android 12, MIUI 13 for POCO | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | no | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 168.8×76.4×8.8 mm | 162.9×77.9×8.2 mm | |
| Weight | 192 g | 227 g | |
| Launch price | — | $420 |
Poco C55
- Main: —
- Front: 5MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Poco C55
- 6.7" IPS LCD
- Resolution: 720x1650
- Refresh rate: —
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Poco C55
- 5000 mAh
- Wired: 10W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared Poco C55 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Poco C55 by 89.3% in our overall performance rating.
Poco C55
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Poco C55 (92/100 vs 29/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Poco C55 (94/100 vs 39/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Poco C55 (78/100 vs 43/100).
portability
In the "portability" category, the Poco C55 notably outperforms the Redmi K90 Ultra (56/100 vs 40/100).
Which is better: the Poco C55 or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Poco C55 by 38 points (73/100 vs 35/100).
What is the rating of the Poco C55 and the Redmi K90 Ultra?
The Poco C55 has a MobileRank rating of 35/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Poco C55 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 29/100).
Should you choose the Poco C55 over the Redmi K90 Ultra?
The Poco C55 is a better fit for everyday use. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.