Oppo Reno Ace vs Redmi K90 Ultra
The Oppo Reno Ace (2019) runs on the Qualcomm Snapdragon 855+, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 75/100 vs 49/100 (a 26-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4000); the main camera is 48 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 859,084); the Oppo Reno Ace is noticeably lighter (200g vs 227g).
Oppo Reno Ace
Redmi K90 Ultra
- Lighter: 200g vs 227g
- Better camera (40/100 vs 37/100)
- Better portability (52/100 vs 40/100)
- Higher AnTuTu: 3119308 vs 859084
- Better Geekbench Single: 3041 vs 1031
- Better Geekbench Multi: 9494 vs 2864
- Bigger battery: 8550 vs 4000 mAh
- Faster charging: 100W vs 65W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 90Hz
- Higher performance (92/100 vs 55/100)
- Longer battery life (92/100 vs 32/100)
- Better display (94/100 vs 68/100)
Comparing the Oppo Reno Ace vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 26 points higher (75/100 vs 49/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 55/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 32/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Oppo Reno Ace (92/100 vs 55/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Oppo Reno Ace (94/100 vs 68/100). In the "camera" category, the Oppo Reno Ace and the Redmi K90 Ultra are nearly equal (40/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Oppo Reno Ace (92/100 vs 32/100). In the "portability" category, the Oppo Reno Ace is a bit better (52/100 vs 40/100).
| Specification | Oppo Reno Ace | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 855+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 859084 | 3119308 | |
| Geekbench Single | 1031 | 3041 | |
| Geekbench Multi | 2864 | 9494 | |
| Display | 6.5" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2400 | 1280x2772 | |
| Refresh rate | 90 Hz | 165 Hz | |
| Battery | 4000 mAh | 8550 mAh | |
| Charging | 65W | 100W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 13 MP | 0 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 9.0 (Pie), planned upgrade to Android 10.0; ColorOS 6.1 | Android 16 | |
| Brightness (peak) | 500 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 161.0×75.7×8.7 mm | 162.9×77.9×8.2 mm | |
| Weight | 200 g | 227 g | |
| Price | — | $420 |
Oppo Reno Ace
- Main: 48MP f/f/1.7
- Ultrawide: 8MP
- Telephoto: 13MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Oppo Reno Ace
- 6.5" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Oppo Reno Ace
- 4000 mAh
- Wired: 65W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- Wireless charging: no data
We compared Oppo Reno Ace and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Oppo Reno Ace by 72.5% in our overall performance rating.
Oppo Reno Ace
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Oppo Reno Ace (92/100 vs 55/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Oppo Reno Ace (94/100 vs 68/100).
camera
In the "camera" category, the Oppo Reno Ace and the Redmi K90 Ultra are nearly equal (40/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Oppo Reno Ace (92/100 vs 32/100).
portability
In the "portability" category, the Oppo Reno Ace is a bit better (52/100 vs 40/100).
Which is better: the Oppo Reno Ace or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Oppo Reno Ace by 26 points (75/100 vs 49/100).
What is the rating of the Oppo Reno Ace and the Redmi K90 Ultra?
The Oppo Reno Ace has a MobileRank rating of 49/100, the Redmi K90 Ultra — 75/100.
Which is more powerful: the Oppo Reno Ace or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 55/100).
Should you choose the Oppo Reno Ace over the Redmi K90 Ultra?
The Oppo Reno Ace 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.