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; launch prices were $700 and $215. By overall MobileRank rating, the OnePlus 15s leads — 83/100 vs 29/100 (a 54-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 (3,950,082 vs 234,339).
Profile comparison
Category scores
OnePlus 15s
Samsung Galaxy A21s
What makes OnePlus 15s better?
- Higher AnTuTu: 3950082 vs 234339
- Better Geekbench Single: 3639 vs 300
- Better Geekbench Multi: 11047 vs 836
- Bigger battery: 7500 vs 5000 mAh
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 60Hz
- Higher performance (98/100 vs 16/100)
- Better camera (53/100 vs 30/100)
- Longer battery life (89/100 vs 52/100)
- Better display (95/100 vs 32/100)
- Better portability (64/100 vs 55/100)
What makes Samsung Galaxy A21s better?
- Lighter: 192g vs 195g
- Cheaper at launch: $215 vs $700
- Overall rating 29/100
Comparison verdict
Comparing the OnePlus 15s vs the Samsung Galaxy A21s, the OnePlus 15s scores 54 points higher (83/100 vs 29/100). In the "performance" category, the OnePlus 15s leads (98/100 vs 16/100). In the "camera" category, the OnePlus 15s leads (53/100 vs 30/100). In the "battery" category, the OnePlus 15s leads (89/100 vs 52/100). Value score: OnePlus 15s — 80/100, Samsung Galaxy A21s — 16/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (98/100 vs 16/100). In the "display" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (95/100 vs 32/100). In the "camera" category, the OnePlus 15s notably outperforms the Samsung Galaxy A21s (53/100 vs 30/100). In the "battery" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (89/100 vs 52/100). In the "portability" category, the OnePlus 15s is a bit better (64/100 vs 55/100).
Specs comparison
| Specification | OnePlus 15s | Samsung Galaxy A21s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Exynos 850 | |
| AnTuTu | 3950082 | 234339 | |
| Geekbench Single | 3639 | 300 | |
| Geekbench Multi | 11047 | 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 | |
| Launch price | $700 | $215 |
Camera comparison
OnePlus 15s
- Main: 50MP f/1.8
- Telephoto: 50MP
- Front: 16MP
Samsung Galaxy A21s
- Main: 48MP
- Front: 13MP
Display comparison
OnePlus 15s
- 6.3" AMOLED
- Resolution: 2640x1216
- Refresh rate: 165 Hz
Samsung Galaxy A21s
- 6.5" IPS LCD
- Refresh rate: 60 Hz
Battery and charging
OnePlus 15s
- 7500 mAh
- Wired: 100W
- Wireless: 50W
Samsung Galaxy A21s
- 5000 mAh
- No wireless charging
Overall performance score
We compared OnePlus 15s and Samsung Galaxy A21s, covering their specs and all relevant benchmarks.
OnePlus 15s leads Samsung Galaxy A21s by 1585.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $485. Samsung Galaxy A21s was $485 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (98/100 vs 16/100).
display
In the "display" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (95/100 vs 32/100).
camera
In the "camera" category, the OnePlus 15s notably outperforms the Samsung Galaxy A21s (53/100 vs 30/100).
battery
In the "battery" category, the OnePlus 15s significantly outperforms the Samsung Galaxy A21s (89/100 vs 52/100).
portability
In the "portability" category, the OnePlus 15s is a bit better (64/100 vs 55/100).
Frequently asked questions
Which is better: the OnePlus 15s or the Samsung Galaxy A21s?
The OnePlus 15s significantly outperforms the Samsung Galaxy A21s by 54 points (83/100 vs 29/100).
What is the rating of the OnePlus 15s and the Samsung Galaxy A21s?
The OnePlus 15s has a MobileRank rating of 83/100, the Samsung Galaxy A21s — 29/100.
Which has the better camera: the OnePlus 15s or the Samsung Galaxy A21s?
The OnePlus 15s leads on camera score (53/100 vs 30/100).
Which is more powerful: the OnePlus 15s or the Samsung Galaxy A21s?
The OnePlus 15s leads on performance (98/100 vs 16/100).
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, budget-conscious buyers.