OnePlus 15s vs Samsung Galaxy A21s
The OnePlus 15s (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Samsung Galaxy A21s (2020) runs on the Exynos 850; estimated prices are $700 and $215. By overall MobileRank rating, the OnePlus 15s leads — 77/100 vs 19/100 (a 58-point difference). Key differences: the OnePlus 15s has the bigger battery (7500 mAh vs 5000); the main camera is 50 MP vs 48 MP; the OnePlus 15s is faster in AnTuTu (3,942,923 vs 234,339).
OnePlus 15s
Samsung Galaxy A21s
- Higher AnTuTu: 3942923 vs 234339
- Better Geekbench Single: 3640 vs 300
- Better Geekbench Multi: 11033 vs 836
- Bigger battery: 7500 vs 5000 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 25/100)
- Longer battery life (82/100 vs 36/100)
- Better display (100/100 vs 0/100)
- Lighter: 192g vs 195g
- Cheaper: $215 vs $700
- Better design/ergonomics (60/100 vs 56/100)
- Better value for money (95/100 vs 62/100)
Comparing the OnePlus 15s vs the Samsung Galaxy A21s, the OnePlus 15s scores 58 points higher (77/100 vs 19/100). In the "performance" category, the OnePlus 15s leads (92/100 vs 0/100). In the "camera" category, the OnePlus 15s leads (48/100 vs 25/100). In the "battery" category, the OnePlus 15s leads (82/100 vs 36/100). In the "value for money" category, the Samsung Galaxy A21s leads (95/100 vs 62/100). In the "performance" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (92/100 vs 0/100). In the "display" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (100/100 vs 0/100). In the "camera" category, the OnePlus 15s notably outperforms the Samsung Galaxy A21s (48/100 vs 25/100). In the "battery" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (82/100 vs 36/100). In the "design" category, the Samsung Galaxy A21s and the OnePlus 15s are nearly equal (60/100 vs 56/100). In the "value for money" category, the Samsung Galaxy A21s significantly outperforms the OnePlus 15s (95/100 vs 62/100).
| Specification | OnePlus 15s | Samsung Galaxy A21s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Exynos 850 | |
| AnTuTu | 3942923 | 234339 | |
| Geekbench Single | 3640 | 300 | |
| Geekbench Multi | 11033 | 836 | |
| Display | 6.3" AMOLED | 6.5" IPS LCD | |
| Resolution | 2640x1216 | — | |
| Refresh rate | 165 Hz | 60 Hz | |
| Battery | 7500 mAh | 5000 mAh | |
| Charging | 100W | — | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 48 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 16 MP | 13 MP | |
| RAM | 12GB | 3GB / 4GB / 6GB | |
| Storage | 256GB / 512GB | 32GB / 64GB | |
| OS | Android 16 | — | |
| NFC | — | yes | |
| Dimensions | — | 163.7×75.3×8.9 mm | |
| Weight | 195 g | 192 g | |
| Price | $700 | $215 |
OnePlus 15s
- Main: 50MP f/f/1.8
- Telephoto: 50MP
- Front: 16MP
Samsung Galaxy A21s
- Main: 48MP
- Front: 13MP
OnePlus 15s
- 6.3" AMOLED
- Resolution: 2640x1216
- Refresh rate: 165 Hz
Samsung Galaxy A21s
- 6.5" IPS LCD
- Refresh rate: 60 Hz
OnePlus 15s
- 7500 mAh
- Wired: 100W
- Wireless: 50W
Samsung Galaxy A21s
- 5000 mAh
- No wireless charging
We compared OnePlus 15s and Samsung Galaxy A21s, covering their specs and all relevant benchmarks.
OnePlus 15s leads Samsung Galaxy A21s by 1582.6% in our overall performance rating.
Price difference: $485. Samsung Galaxy A21s is cheaper by $485.
performance
In the "performance" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (92/100 vs 0/100).
display
In the "display" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (100/100 vs 0/100).
camera
In the "camera" category, the OnePlus 15s notably outperforms the Samsung Galaxy A21s (48/100 vs 25/100).
battery
In the "battery" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (82/100 vs 36/100).
design
In the "design" category, the Samsung Galaxy A21s and the OnePlus 15s are nearly equal (60/100 vs 56/100).
value for money
In the "value for money" category, the Samsung Galaxy A21s significantly outperforms the OnePlus 15s (95/100 vs 62/100).
Which is better: the OnePlus 15s or the Samsung Galaxy A21s?
The OnePlus 15s significantly outperforms the Samsung Galaxy A21s by 58 points (77/100 vs 19/100).
What is the rating of the OnePlus 15s and the Samsung Galaxy A21s?
The OnePlus 15s has a MobileRank rating of 77/100, the Samsung Galaxy A21s — 19/100.
Which has the better camera: the OnePlus 15s or the Samsung Galaxy A21s?
The OnePlus 15s leads on camera score (48/100 vs 25/100).
Which is more powerful: the OnePlus 15s or the Samsung Galaxy A21s?
The OnePlus 15s leads on performance (92/100 vs 0/100).
Should you choose the OnePlus 15s over the Samsung Galaxy A21s?
The OnePlus 15s is a better fit for gamers and power users, those who care about battery life. The Samsung Galaxy A21s is a better fit for budget-conscious buyers.