Oppo Reno8 4G vs Redmi K90 Ultra
The Oppo Reno8 4G (2022) runs on the Qualcomm Snapdragon 680 4G, 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 43/100 (a 30-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4500); the main camera is 64 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 421,228); the Oppo Reno8 4G is noticeably lighter (175g vs 227g).
Oppo Reno8 4G
Redmi K90 Ultra
- Better main camera: 64MP vs 50MP
- Lighter: 175g vs 227g
- Better camera (45/100 vs 37/100)
- Better portability (79/100 vs 40/100)
- Higher AnTuTu: 3233695 vs 421228
- Better Geekbench Single: 3041 vs 412
- Better Geekbench Multi: 9494 vs 1410
- Bigger battery: 8550 vs 4500 mAh
- Faster charging: 100W vs 33W
- Higher refresh rate: 165Hz vs 90Hz
- Higher performance (92/100 vs 31/100)
- Longer battery life (78/100 vs 35/100)
- Better display (94/100 vs 69/100)
Comparing the Oppo Reno8 4G vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 30 points higher (73/100 vs 43/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 31/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 35/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Oppo Reno8 4G (92/100 vs 31/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Oppo Reno8 4G (94/100 vs 69/100). In the "camera" category, the Oppo Reno8 4G is a bit better (45/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Oppo Reno8 4G (78/100 vs 35/100). In the "portability" category, the Oppo Reno8 4G significantly outperforms the Redmi K90 Ultra (79/100 vs 40/100).
| Specification | Oppo Reno8 4G | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 680 4G | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 421228 | 3233695 | |
| Geekbench Single | 412 | 3041 | |
| Geekbench Multi | 1410 | 9494 | |
| Display | 6.4" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2400 | 1280x2772 | |
| Refresh rate | 90 Hz | 165 Hz | |
| Battery | 4500 mAh | 8550 mAh | |
| Charging | 33W | 100W | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 12, ColorOS 12.1 | Android 16 | |
| Brightness (peak) | 800 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IPX4 | IP68/IP69 | |
| Dimensions | 159.9×73.2×7.5 mm | 162.9×77.9×8.2 mm | |
| Weight | 175 g | 227 g | |
| Launch price | — | $420 |
Oppo Reno8 4G
- Main: 64MP f/f/1.7
- Front: 32MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Oppo Reno8 4G
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Oppo Reno8 4G
- 4500 mAh
- Wired: 33W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared Oppo Reno8 4G and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Oppo Reno8 4G by 87.0% in our overall performance rating.
Oppo Reno8 4G
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Oppo Reno8 4G (92/100 vs 31/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Oppo Reno8 4G (94/100 vs 69/100).
camera
In the "camera" category, the Oppo Reno8 4G is a bit better (45/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Oppo Reno8 4G (78/100 vs 35/100).
portability
In the "portability" category, the Oppo Reno8 4G significantly outperforms the Redmi K90 Ultra (79/100 vs 40/100).
Which is better: the Oppo Reno8 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Oppo Reno8 4G by 30 points (73/100 vs 43/100).
What is the rating of the Oppo Reno8 4G and the Redmi K90 Ultra?
The Oppo Reno8 4G has a MobileRank rating of 43/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Oppo Reno8 4G or the Redmi K90 Ultra?
The Oppo Reno8 4G leads on camera score (45/100 vs 37/100).
Which is more powerful: the Oppo Reno8 4G or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 31/100).
Should you choose the Oppo Reno8 4G over the Redmi K90 Ultra?
The Oppo Reno8 4G 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.