Samsung Galaxy M31s vs Samsung Galaxy S25 Ultra
The Samsung Galaxy M31s (2020) runs on the Exynos 9611, while the Samsung Galaxy S25 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Samsung Galaxy S25 Ultra leads — 80/100 vs 45/100 (a 35-point difference). Key differences: the Samsung Galaxy M31s has the bigger battery (6000 mAh vs 5000); the main camera is 64 MP vs 200 MP; the Samsung Galaxy S25 Ultra is faster in AnTuTu (3,128,552 vs 355,351); the Samsung Galaxy M31s is noticeably lighter (203g vs 218g).
Profile comparison
Category scores
Samsung Galaxy M31s
Samsung Galaxy S25 Ultra
What makes Samsung Galaxy M31s better?
- Bigger battery: 6000 vs 5000 mAh
- Lighter: 203g vs 218g
- Overall rating 45/100
What makes Samsung Galaxy S25 Ultra better?
- Higher AnTuTu: 3128552 vs 355351
- Better Geekbench Single: 3100 vs 365
- Better Geekbench Multi: 9760 vs 1107
- Faster charging: 45W vs 25W
- Better main camera: 200MP vs 64MP
- Higher performance (92/100 vs 25/100)
- Better camera (81/100 vs 50/100)
- Longer battery life (56/100 vs 52/100)
- Better display (88/100 vs 83/100)
- Better portability (46/100 vs 43/100)
Comparison verdict
Comparing the Samsung Galaxy M31s vs the Samsung Galaxy S25 Ultra, the Samsung Galaxy S25 Ultra scores 35 points higher (80/100 vs 45/100). In the "performance" category, the Samsung Galaxy S25 Ultra leads (92/100 vs 25/100). In the "camera" category, the Samsung Galaxy S25 Ultra leads (81/100 vs 50/100). In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M31s (92/100 vs 25/100). In the "display" category, the Samsung Galaxy S25 Ultra is a bit better (88/100 vs 83/100). In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M31s (81/100 vs 50/100). In the "battery" category, the Samsung Galaxy S25 Ultra and the Samsung Galaxy M31s are nearly equal (56/100 vs 52/100). In the "portability" category, the Samsung Galaxy S25 Ultra and the Samsung Galaxy M31s are nearly equal (46/100 vs 43/100).
Specs comparison
| Specification | Samsung Galaxy M31s | Samsung Galaxy S25 Ultra | |
|---|---|---|---|
| Processor | Exynos 9611 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 355351 | 3128552 | |
| Geekbench Single | 365 | 3100 | |
| Geekbench Multi | 1107 | 9760 | |
| Display | 6.5" Super AMOLED | 6.9" Dynamic AMOLED 2X | |
| Resolution | 1080x2400 | 3120x1440 | |
| Refresh rate | — | 120 Hz | |
| Battery | 6000 mAh | 5000 mAh | |
| Charging | 25W | 45W | |
| Wireless charging | 0W | 15W | |
| DXOMark (camera) | — | 151 | |
| Main camera | 64 MP | 200 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 12 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 10, One UI 2.0 | Android 15 / One UI 7 | |
| Brightness (peak) | — | 2600 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 159.3×74.4×9.3 mm | 162.8×77.6×8.2 mm | |
| Weight | 203 g | 218 g | |
| Launch price | — | $1299 |
Camera comparison
Samsung Galaxy M31s
- Main: 64MP f/1.8
- Ultrawide: 12MP
- Front: 32MP
Samsung Galaxy S25 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Display comparison
Samsung Galaxy M31s
- 6.5" Super AMOLED
- Resolution: 1080x2400
- Refresh rate: —
Samsung Galaxy S25 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Battery and charging
Samsung Galaxy M31s
- 6000 mAh
- Wired: 25W
- No wireless charging
Samsung Galaxy S25 Ultra
- 5000 mAh
- NanoReview test: web browsing 11:10 hrs, total 28:43 hrs
- Wired: 45W
- Wireless: 15W
Overall performance score
We compared Samsung Galaxy M31s and Samsung Galaxy S25 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S25 Ultra leads Samsung Galaxy M31s by 88.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Samsung Galaxy M31s
Price unknownDetailed category analysis
performance
In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M31s (92/100 vs 25/100).
display
In the "display" category, the Samsung Galaxy S25 Ultra is a bit better (88/100 vs 83/100).
camera
In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M31s (81/100 vs 50/100).
battery
In the "battery" category, the Samsung Galaxy S25 Ultra and the Samsung Galaxy M31s are nearly equal (56/100 vs 52/100).
portability
In the "portability" category, the Samsung Galaxy S25 Ultra and the Samsung Galaxy M31s are nearly equal (46/100 vs 43/100).
Frequently asked questions
Which is better: the Samsung Galaxy M31s or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M31s by 35 points (80/100 vs 45/100).
What is the rating of the Samsung Galaxy M31s and the Samsung Galaxy S25 Ultra?
The Samsung Galaxy M31s has a MobileRank rating of 45/100, the Samsung Galaxy S25 Ultra — 80/100.
Which has the better camera: the Samsung Galaxy M31s or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on camera score (81/100 vs 50/100).
Which is more powerful: the Samsung Galaxy M31s or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on performance (92/100 vs 25/100).
Should you choose the Samsung Galaxy M31s over the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra is a better fit for gamers and power users, mobile photography enthusiasts.