OnePlus Ace 7 Pro vs Samsung Galaxy A51
The OnePlus Ace 7 Pro (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Samsung Galaxy A51 (2020) runs on the Exynos 9611. By overall MobileRank rating, the OnePlus Ace 7 Pro leads — 83/100 vs 34/100 (a 49-point difference). Key differences: the OnePlus Ace 7 Pro has the bigger battery (9000 mAh vs 4000); the main camera is 200 MP vs 48 MP; the OnePlus Ace 7 Pro is faster in AnTuTu (4,097,962 vs 355,351); the Samsung Galaxy A51 is noticeably lighter (172g vs 218g).
Profile comparison
Category scores
OnePlus Ace 7 Pro
Samsung Galaxy A51
What makes OnePlus Ace 7 Pro better?
- Higher AnTuTu: 4097962 vs 355351
- Better Geekbench Single: 3639 vs 365
- Better Geekbench Multi: 11047 vs 1107
- Bigger battery: 9000 vs 4000 mAh
- Better main camera: 200MP vs 48MP
- Higher refresh rate: 185Hz vs 60Hz
- Higher performance (98/100 vs 25/100)
- Better camera (65/100 vs 36/100)
- Longer battery life (80/100 vs 25/100)
- Better display (94/100 vs 51/100)
What makes Samsung Galaxy A51 better?
- Lighter: 172g vs 218g
- Better portability (77/100 vs 43/100)
Comparison verdict
Comparing the OnePlus Ace 7 Pro vs the Samsung Galaxy A51, the OnePlus Ace 7 Pro scores 49 points higher (83/100 vs 34/100). In the "performance" category, the OnePlus Ace 7 Pro leads (98/100 vs 25/100). In the "camera" category, the OnePlus Ace 7 Pro leads (65/100 vs 36/100). In the "battery" category, the OnePlus Ace 7 Pro leads (80/100 vs 25/100). In the "performance" category, the OnePlus Ace 7 Pro significantly outperforms the Samsung Galaxy A51 (98/100 vs 25/100). In the "display" category, the OnePlus Ace 7 Pro significantly outperforms the Samsung Galaxy A51 (94/100 vs 51/100). In the "camera" category, the OnePlus Ace 7 Pro notably outperforms the Samsung Galaxy A51 (65/100 vs 36/100). In the "battery" category, the OnePlus Ace 7 Pro significantly outperforms the Samsung Galaxy A51 (80/100 vs 25/100). In the "portability" category, the Samsung Galaxy A51 significantly outperforms the OnePlus Ace 7 Pro (77/100 vs 43/100).
Specs comparison
| Specification | OnePlus Ace 7 Pro | Samsung Galaxy A51 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Exynos 9611 | |
| AnTuTu | 4097962 | 355351 | |
| Geekbench Single | 3639 | 365 | |
| Geekbench Multi | 11047 | 1107 | |
| Display | 6.8" LTPO AMOLED | 6.5" AMOLED | |
| Resolution | 1272x2772 | — | |
| Refresh rate | 185 Hz | 60 Hz | |
| Battery | 9000 mAh | 4000 mAh | |
| Charging | 100W | — | |
| Main camera | 200 MP | 48 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB | |
| Storage | 256GB / 512GB / 1TB | 64GB / 128GB | |
| OS | Android 17 | — | |
| Brightness (peak) | 2000 nits | — | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.3×77.4×8.5 mm | 158.5×73.6×7.9 mm | |
| Weight | 218 g | 172 g | |
| Launch price | — | $399 |
Camera comparison
OnePlus Ace 7 Pro
- Main: 200MP f/1.8
- Telephoto: 50MP
- Front: 16MP
Samsung Galaxy A51
- Main: 48MP
- Front: 32MP
Display comparison
OnePlus Ace 7 Pro
- 6.8" LTPO AMOLED
- Resolution: 1272x2772
- Refresh rate: 185 Hz
Samsung Galaxy A51
- 6.5" AMOLED
- Refresh rate: 60 Hz
Battery and charging
OnePlus Ace 7 Pro
- 9000 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy A51
- 4000 mAh
- No wireless charging
Overall performance score
We compared OnePlus Ace 7 Pro and Samsung Galaxy A51, covering their specs and all relevant benchmarks.
OnePlus Ace 7 Pro leads Samsung Galaxy A51 by 1053.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
OnePlus Ace 7 Pro
Price unknownDetailed category analysis
performance
In the "performance" category, the OnePlus Ace 7 Pro significantly outperforms the Samsung Galaxy A51 (98/100 vs 25/100).
display
In the "display" category, the OnePlus Ace 7 Pro significantly outperforms the Samsung Galaxy A51 (94/100 vs 51/100).
camera
In the "camera" category, the OnePlus Ace 7 Pro notably outperforms the Samsung Galaxy A51 (65/100 vs 36/100).
battery
In the "battery" category, the OnePlus Ace 7 Pro significantly outperforms the Samsung Galaxy A51 (80/100 vs 25/100).
portability
In the "portability" category, the Samsung Galaxy A51 significantly outperforms the OnePlus Ace 7 Pro (77/100 vs 43/100).
Frequently asked questions
Which is better: the OnePlus Ace 7 Pro or the Samsung Galaxy A51?
The OnePlus Ace 7 Pro significantly outperforms the Samsung Galaxy A51 by 49 points (83/100 vs 34/100).
What is the rating of the OnePlus Ace 7 Pro and the Samsung Galaxy A51?
The OnePlus Ace 7 Pro has a MobileRank rating of 83/100, the Samsung Galaxy A51 — 34/100.
Which has the better camera: the OnePlus Ace 7 Pro or the Samsung Galaxy A51?
The OnePlus Ace 7 Pro leads on camera score (65/100 vs 36/100).
Which is more powerful: the OnePlus Ace 7 Pro or the Samsung Galaxy A51?
The OnePlus Ace 7 Pro leads on performance (98/100 vs 25/100).
Should you choose the OnePlus Ace 7 Pro over the Samsung Galaxy A51?
The OnePlus Ace 7 Pro is a better fit for gamers and power users, those who care about battery life.