OnePlus 15s vs Samsung Galaxy A51
The OnePlus 15s (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Samsung Galaxy A51 (2020) runs on the Exynos 9611; estimated prices are $700 and $399. By overall MobileRank rating, the OnePlus 15s leads — 77/100 vs 18/100 (a 59-point difference). Key differences: the OnePlus 15s has the bigger battery (7500 mAh vs 4000); the main camera is 50 MP vs 48 MP; the OnePlus 15s is faster in AnTuTu (3,942,923 vs 355,351); the Samsung Galaxy A51 is noticeably lighter (172g vs 195g).
OnePlus 15s
Samsung Galaxy A51
- Higher AnTuTu: 3942923 vs 355351
- Better Geekbench Single: 3640 vs 365
- Better Geekbench Multi: 11033 vs 1107
- Bigger battery: 7500 vs 4000 mAh
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 60Hz
- Higher performance (92/100 vs 0/100)
- Better camera (48/100 vs 32/100)
- Longer battery life (82/100 vs 12/100)
- Better display (100/100 vs 0/100)
- Lighter: 172g vs 195g
- Cheaper: $399 vs $700
- Better design/ergonomics (85/100 vs 56/100)
- Better value for money (82/100 vs 62/100)
Comparing the OnePlus 15s vs the Samsung Galaxy A51, the OnePlus 15s scores 59 points higher (77/100 vs 18/100). In the "performance" category, the OnePlus 15s leads (92/100 vs 0/100). In the "camera" category, the OnePlus 15s leads (48/100 vs 32/100). In the "battery" category, the OnePlus 15s leads (82/100 vs 12/100). In the "value for money" category, the Samsung Galaxy A51 leads (82/100 vs 62/100). In the "performance" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A51 (92/100 vs 0/100). In the "display" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A51 (100/100 vs 0/100). In the "camera" category, the OnePlus 15s notably outperforms the Samsung Galaxy A51 (48/100 vs 32/100). In the "battery" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A51 (82/100 vs 12/100). In the "design" category, the Samsung Galaxy A51 notably outperforms the OnePlus 15s (85/100 vs 56/100). In the "value for money" category, the Samsung Galaxy A51 notably outperforms the OnePlus 15s (82/100 vs 62/100).
| Specification | OnePlus 15s | Samsung Galaxy A51 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Exynos 9611 | |
| AnTuTu | 3942923 | 355351 | |
| Geekbench Single | 3640 | 365 | |
| Geekbench Multi | 11033 | 1107 | |
| Display | 6.3" AMOLED | 6.5" AMOLED | |
| Resolution | 2640x1216 | — | |
| Refresh rate | 165 Hz | 60 Hz | |
| Battery | 7500 mAh | 4000 mAh | |
| Charging | 100W | — | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 48 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 12GB | 4GB / 6GB | |
| Storage | 256GB / 512GB | 64GB / 128GB | |
| OS | Android 16 | — | |
| NFC | — | yes | |
| Dimensions | — | 158.5×73.6×7.9 mm | |
| Weight | 195 g | 172 g | |
| Price | $700 | $399 |
OnePlus 15s
- Main: 50MP f/f/1.8
- Telephoto: 50MP
- Front: 16MP
Samsung Galaxy A51
- Main: 48MP
- Front: 32MP
OnePlus 15s
- 6.3" AMOLED
- Resolution: 2640x1216
- Refresh rate: 165 Hz
Samsung Galaxy A51
- 6.5" AMOLED
- Refresh rate: 60 Hz
OnePlus 15s
- 7500 mAh
- Wired: 100W
- Wireless: 50W
Samsung Galaxy A51
- 4000 mAh
- No wireless charging
We compared OnePlus 15s and Samsung Galaxy A51, covering their specs and all relevant benchmarks.
OnePlus 15s leads Samsung Galaxy A51 by 1009.6% in our overall performance rating.
Price difference: $301. Samsung Galaxy A51 is cheaper by $301.
performance
In the "performance" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A51 (92/100 vs 0/100).
display
In the "display" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A51 (100/100 vs 0/100).
camera
In the "camera" category, the OnePlus 15s notably outperforms the Samsung Galaxy A51 (48/100 vs 32/100).
battery
In the "battery" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A51 (82/100 vs 12/100).
design
In the "design" category, the Samsung Galaxy A51 notably outperforms the OnePlus 15s (85/100 vs 56/100).
value for money
In the "value for money" category, the Samsung Galaxy A51 notably outperforms the OnePlus 15s (82/100 vs 62/100).
Which is better: the OnePlus 15s or the Samsung Galaxy A51?
The OnePlus 15s significantly outperforms the Samsung Galaxy A51 by 59 points (77/100 vs 18/100).
What is the rating of the OnePlus 15s and the Samsung Galaxy A51?
The OnePlus 15s has a MobileRank rating of 77/100, the Samsung Galaxy A51 — 18/100.
Which has the better camera: the OnePlus 15s or the Samsung Galaxy A51?
The OnePlus 15s leads on camera score (48/100 vs 32/100).
Which is more powerful: the OnePlus 15s or the Samsung Galaxy A51?
The OnePlus 15s leads on performance (92/100 vs 0/100).
Should you choose the OnePlus 15s over the Samsung Galaxy A51?
The OnePlus 15s is a better fit for gamers and power users, those who care about battery life. The Samsung Galaxy A51 is a better fit for budget-conscious buyers.