Realme C53 vs Redmi K90 Ultra
The Realme C53 (2023) runs on the Unisoc Tiger T612, 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 34/100 (a 39-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra has NFC for contactless payments, the Realme C53 doesn't; the Realme C53 is noticeably lighter (182g vs 227g).
Realme C53
Redmi K90 Ultra
- Lighter: 182g vs 227g
- Better portability (75/100 vs 40/100)
- Better Geekbench Single: 3041 vs 360
- Better Geekbench Multi: 9494 vs 1250
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 33W
- Higher refresh rate: 165Hz vs 90Hz
- Higher performance (92/100 vs 16/100)
- Longer battery life (78/100 vs 46/100)
- Better display (94/100 vs 54/100)
Comparing the Realme C53 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 39 points higher (73/100 vs 34/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 16/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 46/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Realme C53 (92/100 vs 16/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Realme C53 (94/100 vs 54/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Realme C53 (78/100 vs 46/100). In the "portability" category, the Realme C53 significantly outperforms the Redmi K90 Ultra (75/100 vs 40/100).
| Specification | Realme C53 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Unisoc Tiger T612 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 3119308 | |
| Geekbench Single | 360 | 3041 | |
| Geekbench Multi | 1250 | 9494 | |
| Display | 6.7" IPS LCD | 6.8" AMOLED | |
| Resolution | 1080x2400 | 1280x2772 | |
| Refresh rate | 90 Hz | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 33W | 100W | |
| Main camera | — | 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 13, Realme UI T | Android 16 | |
| Brightness (peak) | 560 nits | 3500 nits | |
| NFC | no | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 167.3×76.7×7.5 mm | 162.9×77.9×8.2 mm | |
| Weight | 182 g | 227 g | |
| Launch price | — | $420 |
Realme C53
- Main: —
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Realme C53
- 6.7" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Realme C53
- 5000 mAh
- Wired: 33W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Realme C53
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Realme C53 (92/100 vs 16/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Realme C53 (94/100 vs 54/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Realme C53 (78/100 vs 46/100).
portability
In the "portability" category, the Realme C53 significantly outperforms the Redmi K90 Ultra (75/100 vs 40/100).
Which is better: the Realme C53 or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Realme C53 by 39 points (73/100 vs 34/100).
What is the rating of the Realme C53 and the Redmi K90 Ultra?
The Realme C53 has a MobileRank rating of 34/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Realme C53 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 16/100).
Should you choose the Realme C53 over the Redmi K90 Ultra?
The Realme C53 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.