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 424,216); the Oppo Reno8 4G is noticeably lighter (175g vs 227g).
Profile comparison
Category scores
Oppo Reno8 4G
Redmi K90 Ultra
What makes Oppo Reno8 4G better?
- Better main camera: 64MP vs 50MP
- Lighter: 175g vs 227g
- Better camera (45/100 vs 37/100)
- Better portability (79/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 424216
- Better Geekbench Single: 3013 vs 412
- Better Geekbench Multi: 9287 vs 1423
- 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)
Comparison verdict
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).
Specs comparison
| Specification | Oppo Reno8 4G | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 680 4G | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 424216 | 3233695 | |
| Geekbench Single | 412 | 3013 | |
| Geekbench Multi | 1423 | 9287 | |
| 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 |
Camera comparison
Oppo Reno8 4G
- Main: 64MP f/1.7
- Front: 32MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Oppo Reno8 4G
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Oppo Reno8 4G
- 4500 mAh
- Wired: 33W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Oppo Reno8 4G and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Oppo Reno8 4G by 86.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Oppo Reno8 4G
Price unknownDetailed category analysis
performance
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).
Frequently asked questions
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 Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.