OnePlus 15 vs Samsung Galaxy A51
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy A51 (2020) runs on the Exynos 9611; estimated prices are $799 and $399. By overall MobileRank rating, the OnePlus 15 leads — 61/100 vs 18/100 (a 43-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 4000); the main camera is 50 MP vs 48 MP; the OnePlus 15 is faster in AnTuTu (3,621,671 vs 355,351); the Samsung Galaxy A51 is noticeably lighter (172g vs 213g).
OnePlus 15
Samsung Galaxy A51
- Higher AnTuTu: 3621671 vs 355351
- Better Geekbench Single: 3050 vs 365
- Better Geekbench Multi: 9300 vs 1107
- Bigger battery: 6500 vs 4000 mAh
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (77/100 vs 0/100)
- Better camera (34/100 vs 32/100)
- Longer battery life (48/100 vs 12/100)
- Better display (100/100 vs 0/100)
- Lighter: 172g vs 213g
- Cheaper: $399 vs $799
- Better design/ergonomics (85/100 vs 33/100)
- Better value for money (82/100 vs 55/100)
Comparing the OnePlus 15 vs the Samsung Galaxy A51, the OnePlus 15 scores 43 points higher (61/100 vs 18/100). In the "performance" category, the OnePlus 15 leads (77/100 vs 0/100). In the "battery" category, the OnePlus 15 leads (48/100 vs 12/100). In the "value for money" category, the Samsung Galaxy A51 leads (82/100 vs 55/100). In the "performance" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A51 (77/100 vs 0/100). In the "display" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A51 (100/100 vs 0/100). In the "camera" category, the OnePlus 15 and the Samsung Galaxy A51 are nearly equal (34/100 vs 32/100). In the "battery" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A51 (48/100 vs 12/100). In the "design" category, the Samsung Galaxy A51 significantly outperforms the OnePlus 15 (85/100 vs 33/100). In the "value for money" category, the Samsung Galaxy A51 notably outperforms the OnePlus 15 (82/100 vs 55/100).
| Specification | OnePlus 15 | Samsung Galaxy A51 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Exynos 9611 | |
| AnTuTu | 3621671 | 355351 | |
| Geekbench Single | 3050 | 365 | |
| Geekbench Multi | 9300 | 1107 | |
| Display | 6.8" AMOLED | 6.5" AMOLED | |
| Resolution | — | — | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 6500 mAh | 4000 mAh | |
| Charging | — | — | |
| Main camera | 50 MP | 48 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB | |
| Storage | 256GB / 512GB | 64GB / 128GB | |
| OS | — | — | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 161.4×76.7×8.1 mm | 158.5×73.6×7.9 mm | |
| Weight | 213 g | 172 g | |
| Price | $799 | $399 |
OnePlus 15
- Main: 50MP
- Front: 32MP
Samsung Galaxy A51
- Main: 48MP
- Front: 32MP
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Samsung Galaxy A51
- 6.5" AMOLED
- Refresh rate: 60 Hz
OnePlus 15
- 6500 mAh
- No wireless charging
Samsung Galaxy A51
- 4000 mAh
- No wireless charging
We compared OnePlus 15 and Samsung Galaxy A51, covering their specs and all relevant benchmarks.
OnePlus 15 leads Samsung Galaxy A51 by 919.2% in our overall performance rating.
Price difference: $400. Samsung Galaxy A51 is cheaper by $400.
performance
In the "performance" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A51 (77/100 vs 0/100).
display
In the "display" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A51 (100/100 vs 0/100).
camera
In the "camera" category, the OnePlus 15 and the Samsung Galaxy A51 are nearly equal (34/100 vs 32/100).
battery
In the "battery" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A51 (48/100 vs 12/100).
design
In the "design" category, the Samsung Galaxy A51 significantly outperforms the OnePlus 15 (85/100 vs 33/100).
value for money
In the "value for money" category, the Samsung Galaxy A51 notably outperforms the OnePlus 15 (82/100 vs 55/100).
Which is better: the OnePlus 15 or the Samsung Galaxy A51?
The OnePlus 15 significantly outperforms the Samsung Galaxy A51 by 43 points (61/100 vs 18/100).
What is the rating of the OnePlus 15 and the Samsung Galaxy A51?
The OnePlus 15 has a MobileRank rating of 61/100, the Samsung Galaxy A51 — 18/100.
Which is more powerful: the OnePlus 15 or the Samsung Galaxy A51?
The OnePlus 15 leads on performance (77/100 vs 0/100).
Should you choose the OnePlus 15 over the Samsung Galaxy A51?
The OnePlus 15 is a better fit for active users. The Samsung Galaxy A51 is a better fit for budget-conscious buyers.