OnePlus 15 vs Samsung Galaxy A21s
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy A21s (2020) runs on the Exynos 850; estimated prices are $799 and $215. By overall MobileRank rating, the OnePlus 15 leads — 61/100 vs 19/100 (a 42-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 5000); the main camera is 50 MP vs 48 MP; the OnePlus 15 is faster in AnTuTu (3,621,671 vs 234,339); the Samsung Galaxy A21s is noticeably lighter (192g vs 213g).
OnePlus 15
Samsung Galaxy A21s
- Higher AnTuTu: 3621671 vs 234339
- Better Geekbench Single: 3050 vs 300
- Better Geekbench Multi: 9300 vs 836
- Bigger battery: 6500 vs 5000 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 25/100)
- Longer battery life (48/100 vs 36/100)
- Better display (100/100 vs 0/100)
- Lighter: 192g vs 213g
- Cheaper: $215 vs $799
- Better design/ergonomics (60/100 vs 33/100)
- Better value for money (95/100 vs 55/100)
Comparing the OnePlus 15 vs the Samsung Galaxy A21s, the OnePlus 15 scores 42 points higher (61/100 vs 19/100). In the "performance" category, the OnePlus 15 leads (77/100 vs 0/100). In the "battery" category, the OnePlus 15 leads (48/100 vs 36/100). In the "value for money" category, the Samsung Galaxy A21s leads (95/100 vs 55/100). In the "performance" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A21s (77/100 vs 0/100). In the "display" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A21s (100/100 vs 0/100). In the "camera" category, the OnePlus 15 is a bit better (34/100 vs 25/100). In the "battery" category, the OnePlus 15 is a bit better (48/100 vs 36/100). In the "design" category, the Samsung Galaxy A21s notably outperforms the OnePlus 15 (60/100 vs 33/100). In the "value for money" category, the Samsung Galaxy A21s significantly outperforms the OnePlus 15 (95/100 vs 55/100).
| Specification | OnePlus 15 | Samsung Galaxy A21s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Exynos 850 | |
| AnTuTu | 3621671 | 234339 | |
| Geekbench Single | 3050 | 300 | |
| Geekbench Multi | 9300 | 836 | |
| Display | 6.8" AMOLED | 6.5" IPS LCD | |
| Resolution | — | — | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 6500 mAh | 5000 mAh | |
| Charging | — | — | |
| Main camera | 50 MP | 48 MP | |
| Front camera | 32 MP | 13 MP | |
| RAM | 12GB / 16GB | 3GB / 4GB / 6GB | |
| Storage | 256GB / 512GB | 32GB / 64GB | |
| OS | — | — | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 161.4×76.7×8.1 mm | 163.7×75.3×8.9 mm | |
| Weight | 213 g | 192 g | |
| Price | $799 | $215 |
OnePlus 15
- Main: 50MP
- Front: 32MP
Samsung Galaxy A21s
- Main: 48MP
- Front: 13MP
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Samsung Galaxy A21s
- 6.5" IPS LCD
- Refresh rate: 60 Hz
OnePlus 15
- 6500 mAh
- No wireless charging
Samsung Galaxy A21s
- 5000 mAh
- No wireless charging
We compared OnePlus 15 and Samsung Galaxy A21s, covering their specs and all relevant benchmarks.
OnePlus 15 leads Samsung Galaxy A21s by 1445.5% in our overall performance rating.
Price difference: $584. Samsung Galaxy A21s is cheaper by $584.
performance
In the "performance" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A21s (77/100 vs 0/100).
display
In the "display" category, the OnePlus 15 significantly outperforms the Samsung Galaxy A21s (100/100 vs 0/100).
camera
In the "camera" category, the OnePlus 15 is a bit better (34/100 vs 25/100).
battery
In the "battery" category, the OnePlus 15 is a bit better (48/100 vs 36/100).
design
In the "design" category, the Samsung Galaxy A21s notably outperforms the OnePlus 15 (60/100 vs 33/100).
value for money
In the "value for money" category, the Samsung Galaxy A21s significantly outperforms the OnePlus 15 (95/100 vs 55/100).
Which is better: the OnePlus 15 or the Samsung Galaxy A21s?
The OnePlus 15 significantly outperforms the Samsung Galaxy A21s by 42 points (61/100 vs 19/100).
What is the rating of the OnePlus 15 and the Samsung Galaxy A21s?
The OnePlus 15 has a MobileRank rating of 61/100, the Samsung Galaxy A21s — 19/100.
Which has the better camera: the OnePlus 15 or the Samsung Galaxy A21s?
The OnePlus 15 leads on camera score (34/100 vs 25/100).
Which is more powerful: the OnePlus 15 or the Samsung Galaxy A21s?
The OnePlus 15 leads on performance (77/100 vs 0/100).
Should you choose the OnePlus 15 over the Samsung Galaxy A21s?
The OnePlus 15 is a better fit for active users. The Samsung Galaxy A21s is a better fit for budget-conscious buyers.