Oppo A78 vs Redmi K90
The Oppo A78 (2023) runs on the MediaTek Dimensity 700, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 37/100 (a 39-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5000); the Redmi K90 is faster in AnTuTu (3,077,585 vs 515,647); the Oppo A78 is noticeably lighter (188g vs 206g).
Profile comparison
Category scores
Oppo A78
Redmi K90
What makes Oppo A78 better?
- Lighter: 188g vs 206g
- Better portability (67/100 vs 55/100)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 515647
- Better Geekbench Single: 3013 vs 690
- Better Geekbench Multi: 9287 vs 1736
- Bigger battery: 7100 vs 5000 mAh
- Faster charging: 100W vs 33W
- Higher refresh rate: 120Hz vs 90Hz
- Higher performance (91/100 vs 40/100)
- Better camera (58/100 vs 18/100)
- Longer battery life (72/100 vs 46/100)
- Better display (82/100 vs 44/100)
Comparison verdict
Comparing the Oppo A78 vs the Redmi K90, the Redmi K90 scores 39 points higher (76/100 vs 37/100). In the "performance" category, the Redmi K90 leads (91/100 vs 40/100). In the "camera" category, the Redmi K90 leads (58/100 vs 18/100). In the "battery" category, the Redmi K90 leads (72/100 vs 46/100). In the "performance" category, the Redmi K90 significantly outperforms the Oppo A78 (91/100 vs 40/100). In the "display" category, the Redmi K90 significantly outperforms the Oppo A78 (82/100 vs 44/100). In the "camera" category, the Redmi K90 significantly outperforms the Oppo A78 (58/100 vs 18/100). In the "battery" category, the Redmi K90 notably outperforms the Oppo A78 (72/100 vs 46/100). In the "portability" category, the Oppo A78 is a bit better (67/100 vs 55/100).
Specs comparison
| Specification | Oppo A78 | Redmi K90 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 700 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 515647 | 3077585 | |
| Geekbench Single | 690 | 3013 | |
| Geekbench Multi | 1736 | 9287 | |
| Display | 6.6" IPS LCD | 6.6" AMOLED | |
| Resolution | 720x1612 | 2510x1156 | |
| Refresh rate | 90 Hz | 120 Hz | |
| Battery | 5000 mAh | 7100 mAh | |
| Charging | 33W | 100W | |
| DXOMark (camera) | 69 | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB | |
| OS | Android 12, ColorOS 13 | Android 16 | |
| Brightness (peak) | 600 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP54 | IP68 | |
| Dimensions | 163.8×75.1×8.0 mm | 157.5×75.3×8.0 mm | |
| Weight | 188 g | 206 g | |
| Launch price | — | $401 |
Camera comparison
Oppo A78
- Main: 50MP f/1.8
- Front: 8MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Oppo A78
- 6.6" IPS LCD
- Resolution: 720x1612
- Refresh rate: 90 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Oppo A78
- 5000 mAh
- Wired: 33W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Oppo A78 and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Oppo A78 by 83.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Oppo A78
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Oppo A78 (91/100 vs 40/100).
display
In the "display" category, the Redmi K90 significantly outperforms the Oppo A78 (82/100 vs 44/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Oppo A78 (58/100 vs 18/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Oppo A78 (72/100 vs 46/100).
portability
In the "portability" category, the Oppo A78 is a bit better (67/100 vs 55/100).
Frequently asked questions
Which is better: the Oppo A78 or the Redmi K90?
The Redmi K90 significantly outperforms the Oppo A78 by 39 points (76/100 vs 37/100).
What is the rating of the Oppo A78 and the Redmi K90?
The Oppo A78 has a MobileRank rating of 37/100, the Redmi K90 — 76/100.
Which has the better camera: the Oppo A78 or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 18/100).
Which is more powerful: the Oppo A78 or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 40/100).
Should you choose the Oppo A78 over the Redmi K90?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.