Oppo A78 4G vs Redmi K90
The Oppo A78 4G (2023) runs on the Qualcomm Snapdragon 680 4G, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 42/100 (a 34-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5000); the Redmi K90 is faster in AnTuTu (3,086,235 vs 421,228); the Oppo A78 4G is noticeably lighter (180g vs 206g).
Oppo A78 4G
Redmi K90
- Lighter: 180g vs 206g
- Better portability (72/100 vs 55/100)
- Higher AnTuTu: 3086235 vs 421228
- Better Geekbench Single: 3041 vs 412
- Better Geekbench Multi: 9494 vs 1410
- Bigger battery: 7100 vs 5000 mAh
- Faster charging: 100W vs 67W
- Higher refresh rate: 120Hz vs 90Hz
- Higher performance (92/100 vs 31/100)
- Better camera (58/100 vs 30/100)
- Longer battery life (72/100 vs 53/100)
- Better display (82/100 vs 69/100)
Comparing the Oppo A78 4G vs the Redmi K90, the Redmi K90 scores 34 points higher (76/100 vs 42/100). In the "performance" category, the Redmi K90 leads (92/100 vs 31/100). In the "camera" category, the Redmi K90 leads (58/100 vs 30/100). In the "battery" category, the Redmi K90 leads (72/100 vs 53/100). In the "performance" category, the Redmi K90 significantly outperforms the Oppo A78 4G (92/100 vs 31/100). In the "display" category, the Redmi K90 is a bit better (82/100 vs 69/100). In the "camera" category, the Redmi K90 notably outperforms the Oppo A78 4G (58/100 vs 30/100). In the "battery" category, the Redmi K90 notably outperforms the Oppo A78 4G (72/100 vs 53/100). In the "portability" category, the Oppo A78 4G notably outperforms the Redmi K90 (72/100 vs 55/100).
| Specification | Oppo A78 4G | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 680 4G | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 421228 | 3086235 | |
| Geekbench Single | 412 | 3041 | |
| Geekbench Multi | 1410 | 9494 | |
| Display | 6.4" AMOLED | 6.6" AMOLED | |
| Resolution | 1080x2400 | 2510x1156 | |
| Refresh rate | 90 Hz | 120 Hz | |
| Battery | 5000 mAh | 7100 mAh | |
| Charging | 67W | 100W | |
| 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 | 256GB / 512GB | |
| OS | Android 13, ColorOS 13.1 | Android 16 | |
| Brightness (peak) | 430 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP54 | IP68 | |
| Dimensions | 160.0×73.2×7.9 mm | 157.5×75.3×8.0 mm | |
| Weight | 180 g | 206 g | |
| Launch price | — | $401 |
Oppo A78 4G
- Main: 50MP f/f/1.8
- Front: 8MP
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Oppo A78 4G
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Oppo A78 4G
- 5000 mAh
- Wired: 67W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
We compared Oppo A78 4G and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Oppo A78 4G by 86.4% in our overall performance rating.
Oppo A78 4G
Price unknownperformance
In the "performance" category, the Redmi K90 significantly outperforms the Oppo A78 4G (92/100 vs 31/100).
display
In the "display" category, the Redmi K90 is a bit better (82/100 vs 69/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Oppo A78 4G (58/100 vs 30/100).
battery
In the "battery" category, the Redmi K90 notably outperforms the Oppo A78 4G (72/100 vs 53/100).
portability
In the "portability" category, the Oppo A78 4G notably outperforms the Redmi K90 (72/100 vs 55/100).
Which is better: the Oppo A78 4G or the Redmi K90?
The Redmi K90 significantly outperforms the Oppo A78 4G by 34 points (76/100 vs 42/100).
What is the rating of the Oppo A78 4G and the Redmi K90?
The Oppo A78 4G has a MobileRank rating of 42/100, the Redmi K90 — 76/100.
Which has the better camera: the Oppo A78 4G or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 30/100).
Which is more powerful: the Oppo A78 4G or the Redmi K90?
The Redmi K90 leads on performance (92/100 vs 31/100).
Should you choose the Oppo A78 4G over the Redmi K90?
The Oppo A78 4G is a better fit for everyday use. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.