Samsung Galaxy A51 vs Samsung Galaxy M31 Prime
The Samsung Galaxy A51 (2020) runs on the Exynos 9611, while the Samsung Galaxy M31 Prime (2020) runs on the Exynos 9611. By overall MobileRank rating, the Samsung Galaxy M31 Prime leads — 44/100 vs 34/100 (a 10-point difference). Key differences: the Samsung Galaxy M31 Prime has the bigger battery (6000 mAh vs 4000); the main camera is 48 MP vs 64 MP; the Samsung Galaxy A51 has NFC for contactless payments, the Samsung Galaxy M31 Prime doesn't.
Profile comparison
Category scores
Samsung Galaxy A51
Samsung Galaxy M31 Prime
What makes Samsung Galaxy A51 better?
- Overall rating 34/100
What makes Samsung Galaxy M31 Prime better?
- Bigger battery: 6000 vs 4000 mAh
- Better main camera: 64MP vs 48MP
- Better camera (48/100 vs 36/100)
- Longer battery life (51/100 vs 25/100)
- Better display (83/100 vs 51/100)
Comparison verdict
Comparing the Samsung Galaxy A51 vs the Samsung Galaxy M31 Prime, the Samsung Galaxy M31 Prime scores 10 points higher (44/100 vs 34/100). In the "camera" category, the Samsung Galaxy M31 Prime leads (48/100 vs 36/100). In the "battery" category, the Samsung Galaxy M31 Prime leads (51/100 vs 25/100). In the "performance" category, both devices are on the same level — 25/100. In the "display" category, the Samsung Galaxy M31 Prime significantly outperforms the Samsung Galaxy A51 (83/100 vs 51/100). In the "camera" category, the Samsung Galaxy M31 Prime is a bit better (48/100 vs 36/100). In the "battery" category, the Samsung Galaxy M31 Prime notably outperforms the Samsung Galaxy A51 (51/100 vs 25/100).
Specs comparison
| Specification | Samsung Galaxy A51 | Samsung Galaxy M31 Prime | |
|---|---|---|---|
| Processor | Exynos 9611 | Exynos 9611 | |
| AnTuTu | 355351 | 355351 | |
| Geekbench Single | 365 | 365 | |
| Geekbench Multi | 1107 | 1107 | |
| Display | 6.5" AMOLED | 6.4" Super AMOLED | |
| Resolution | — | 1080x2340 | |
| Refresh rate | 60 Hz | — | |
| Battery | 4000 mAh | 6000 mAh | |
| Charging | — | 15W | |
| Main camera | 48 MP | 64 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 4GB / 6GB | 6GB | |
| Storage | 64GB / 128GB | 64GB / 128GB | |
| OS | — | Android 10, One UI 2.1 | |
| NFC | yes | no | |
| Dimensions | 158.5×73.6×7.9 mm | — | |
| Weight | 172 g | — | |
| Launch price | $399 | — |
Camera comparison
Samsung Galaxy A51
- Main: 48MP
- Front: 32MP
Samsung Galaxy M31 Prime
- Main: 64MP f/1.8
- Ultrawide: 8MP
- Front: 32MP
Display comparison
Samsung Galaxy A51
- 6.5" AMOLED
- Refresh rate: 60 Hz
Samsung Galaxy M31 Prime
- 6.4" Super AMOLED
- Resolution: 1080x2340
- Refresh rate: —
Battery and charging
Samsung Galaxy A51
- 4000 mAh
- No wireless charging
Samsung Galaxy M31 Prime
- 6000 mAh
- Wired: 15W
- No wireless charging
Overall performance score
We compared Samsung Galaxy A51 and Samsung Galaxy M31 Prime, covering their specs and all relevant benchmarks.
Equal performance based on benchmark results.
Benchmarks
Launch prices and where to check today's
Samsung Galaxy M31 Prime
Price unknownDetailed category analysis
performance
In the "performance" category, both devices are on the same level — 25/100.
display
In the "display" category, the Samsung Galaxy M31 Prime significantly outperforms the Samsung Galaxy A51 (83/100 vs 51/100).
camera
In the "camera" category, the Samsung Galaxy M31 Prime is a bit better (48/100 vs 36/100).
battery
In the "battery" category, the Samsung Galaxy M31 Prime notably outperforms the Samsung Galaxy A51 (51/100 vs 25/100).
Frequently asked questions
Which is better: the Samsung Galaxy A51 or the Samsung Galaxy M31 Prime?
The Samsung Galaxy M31 Prime is noticeably better than the Samsung Galaxy A51 — the overall rating gap is 10 points.
What is the rating of the Samsung Galaxy A51 and the Samsung Galaxy M31 Prime?
The Samsung Galaxy A51 has a MobileRank rating of 34/100, the Samsung Galaxy M31 Prime — 44/100.
Which has the better camera: the Samsung Galaxy A51 or the Samsung Galaxy M31 Prime?
The Samsung Galaxy M31 Prime leads on camera score (48/100 vs 36/100).
Should you choose the Samsung Galaxy A51 over the Samsung Galaxy M31 Prime?
Neither model stands out enough to recommend it for a specific use case: the clearest difference is display — better on the Samsung Galaxy M31 Prime (83/100 vs 51/100).