Samsung Galaxy M55s vs Samsung Galaxy S25 Ultra
The Samsung Galaxy M55s (2024) runs on the Qualcomm Snapdragon 7 Gen 1, 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 55/100 (a 25-point difference). Key differences: the main camera is 50 MP vs 200 MP; the Samsung Galaxy S25 Ultra is faster in AnTuTu (3,128,552 vs 859,516); the Samsung Galaxy M55s is noticeably lighter (180g vs 218g).
Profile comparison
Category scores
Samsung Galaxy M55s
Samsung Galaxy S25 Ultra
What makes Samsung Galaxy M55s better?
- Lighter: 180g vs 218g
- Better portability (73/100 vs 46/100)
What makes Samsung Galaxy S25 Ultra better?
- Higher AnTuTu: 3128552 vs 859516
- Better Geekbench Single: 3100 vs 1044
- Better Geekbench Multi: 9760 vs 2785
- Better main camera: 200MP vs 50MP
- Higher performance (92/100 vs 55/100)
- Better camera (81/100 vs 44/100)
- Longer battery life (56/100 vs 48/100)
- Better display (88/100 vs 79/100)
Comparison verdict
Comparing the Samsung Galaxy M55s vs the Samsung Galaxy S25 Ultra, the Samsung Galaxy S25 Ultra scores 25 points higher (80/100 vs 55/100). In the "performance" category, the Samsung Galaxy S25 Ultra leads (92/100 vs 55/100). In the "camera" category, the Samsung Galaxy S25 Ultra leads (81/100 vs 44/100). In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M55s (92/100 vs 55/100). In the "display" category, the Samsung Galaxy S25 Ultra is a bit better (88/100 vs 79/100). In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M55s (81/100 vs 44/100). In the "battery" category, the Samsung Galaxy S25 Ultra is a bit better (56/100 vs 48/100). In the "portability" category, the Samsung Galaxy M55s notably outperforms the Samsung Galaxy S25 Ultra (73/100 vs 46/100).
Specs comparison
| Specification | Samsung Galaxy M55s | Samsung Galaxy S25 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 7 Gen 1 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 859516 | 3128552 | |
| Geekbench Single | 1044 | 3100 | |
| Geekbench Multi | 2785 | 9760 | |
| Display | 6.7" Super AMOLED+ | 6.9" Dynamic AMOLED 2X | |
| Resolution | 1080x2400 | 3120x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5000 mAh | 5000 mAh | |
| Charging | 45W | 45W | |
| Wireless charging | 0W | 15W | |
| DXOMark (camera) | — | 151 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 50 MP | 12 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 14, up to 4 major Android upgrades, One UI 6.1 | Android 15 / One UI 7 | |
| Brightness (peak) | 1000 nits | 2600 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 163.9×76.5×7.8 mm | 162.8×77.6×8.2 mm | |
| Weight | 180 g | 218 g | |
| Launch price | — | $1299 |
Camera comparison
Samsung Galaxy M55s
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 50MP
Samsung Galaxy S25 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Display comparison
Samsung Galaxy M55s
- 6.7" Super AMOLED+
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Samsung Galaxy S25 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Battery and charging
Samsung Galaxy M55s
- 5000 mAh
- Wired: 45W
- 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 M55s and Samsung Galaxy S25 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S25 Ultra leads Samsung Galaxy M55s by 72.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Samsung Galaxy M55s
Price unknownDetailed category analysis
performance
In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M55s (92/100 vs 55/100).
display
In the "display" category, the Samsung Galaxy S25 Ultra is a bit better (88/100 vs 79/100).
camera
In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M55s (81/100 vs 44/100).
battery
In the "battery" category, the Samsung Galaxy S25 Ultra is a bit better (56/100 vs 48/100).
portability
In the "portability" category, the Samsung Galaxy M55s notably outperforms the Samsung Galaxy S25 Ultra (73/100 vs 46/100).
Frequently asked questions
Which is better: the Samsung Galaxy M55s or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra significantly outperforms the Samsung Galaxy M55s by 25 points (80/100 vs 55/100).
What is the rating of the Samsung Galaxy M55s and the Samsung Galaxy S25 Ultra?
The Samsung Galaxy M55s has a MobileRank rating of 55/100, the Samsung Galaxy S25 Ultra — 80/100.
Which has the better camera: the Samsung Galaxy M55s or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on camera score (81/100 vs 44/100).
Which is more powerful: the Samsung Galaxy M55s or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on performance (92/100 vs 55/100).
Should you choose the Samsung Galaxy M55s over the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra is a better fit for gamers and power users, mobile photography enthusiasts.