Samsung Galaxy M55s 5G vs Samsung Galaxy S27 Ultra
Compare Samsung Galaxy M55s 5G vs Samsung Galaxy S27 Ultra side by side: Qualcomm Snapdragon 7 Gen 1 vs Qualcomm Snapdragon 8 Elite Gen 2 for Galaxy, 50MP vs…

Samsung
Galaxy M55s 5G
$249
4categories won

Samsung
Galaxy S27 Ultra
$1,399
16categories won
1 categories tied · 21 scored in total · add a third phone
Which one wins?
Samsung Galaxy S27 Ultra takes the overall win
The Samsung Galaxy S27 Ultra proves superior overall against the Samsung Galaxy M55s 5G, outperforming on gaming and photography. In camera testing, the Galaxy S27 Ultra leads with superior optics, while battery endurance leans towards the Galaxy S27 Ultra. Choose the Galaxy S27 Ultra if you want the highest performance ceiling, or opt for the Galaxy M55s 5G if its lower retail price better fit your budget.
Galaxy S27 Ultra takes battery honors offering 5,500 mAh alongside 65W charging.
Galaxy S27 Ultra provides greater sustained gaming output with its Qualcomm Snapdragon 8 Elite Gen 2 for Galaxy and 24GB RAM.
Galaxy S27 Ultra takes photography with 200MP optics and 3x optical telephoto capabilities.
Galaxy M55s 5G provides a sharper value proposition, coming in at $249 vs $1399.
Category verdicts are computed algorithmically from verified technical specifications and hardware benchmarks. Rows where neither figure is objectively better — screen size preference, operating system choice, aesthetic build materials — are displayed for direct reference without scoring bias.
Galaxy M55s 5G vs Galaxy S27 Ultra: specifications compared
Display
| Specification | Galaxy M55s 5G | Galaxy S27 Ultra |
|---|---|---|
| Screen size | 6.7" | 6.9" |
| Resolution | 1080 x 2400 | 1440 x 3120Winner |
| Pixel density | 393 ppi | 498 ppiWinner |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1000 nits | 3500 nitsWinner |
Performance
| Specification | Galaxy M55s 5G | Galaxy S27 Ultra |
|---|---|---|
| Chipset | Qualcomm Snapdragon 7 Gen 1 | Qualcomm Snapdragon 8 Elite Gen 2 for Galaxy |
| Process node | 4 nm | 2 nmWinner |
| AnTuTu score | 590,000 | 3,200,000Winner |
| Geekbench multi | 2850 | 10800Winner |
| Maximum RAM | 8 GB | 24 GBWinner |
| Maximum storage | 256GB | 2TBWinner |
Camera
| Specification | Galaxy M55s 5G | Galaxy S27 Ultra |
|---|---|---|
| Main sensor | 50 MP | 200 MPWinner |
| Rear cameras | 3 | 4Winner |
| Optical zoom | — | 3x |
| Ultrawide | 8 MP | 50 MPWinner |
| Selfie camera | 50 MPWinner | 16 MP |
| Max video | 4K@30fps, 1080p@60fps | 8K at 30fps / 4K at 120fps |
Battery and charging
| Specification | Galaxy M55s 5G | Galaxy S27 Ultra |
|---|---|---|
| Capacity | 5,000 mAh | 5,500 mAhWinner |
| Wired charging | 45 W | 65 WWinner |
| Wireless charging | No | 25 WWinner |
Design
| Specification | Galaxy M55s 5G | Galaxy S27 Ultra |
|---|---|---|
| Weight | 180 gWinner | 218 g |
| Thickness | 7.8 mmWinner | 8.2 mm |
| Water resistance | IP67 | IP68 |
| Build | Sleek polycarbonate frame with fusion patterned back, glass front | Grade 5 Titanium frame, Ceramic Glass front and back |
Software and support
| Specification | Galaxy M55s 5G | Galaxy S27 Ultra |
|---|---|---|
| Operating system | Android 14 | Android 17 |
| OS updates | 4 years | 7 yearsWinner |
| Security updates | 5 years | 7 yearsWinner |
Connectivity and value
| Specification | Galaxy M55s 5G | Galaxy S27 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 7 (802.11be, tri-band 2.4/5/6GHz, 320MHz bandwidth) |
| Storage expansion | microSD | None |
| 3.5mm jack | No | No |
| Launch price | $249Winner | $1,399 |
Samsung Galaxy M55s 5G
The Galaxy M55s 5G is a sleek mid-ranger from Samsung featuring a slim 7.8mm chassis, vibrant 120Hz Super AMOLED+ display, Snapdragon 7 Gen 1 4nm processor, 50MP OIS rear camera, and a high-resolution 50MP selfie shooter with 45W wired fast charging.
- Display
- 6.7"
- Chipset
- Qualcomm Snapdragon 7 Gen 1
- Main camera
- 50MP
- Battery
- 5,000mAh
Samsung Galaxy S27 Ultra
The Galaxy S27 Ultra unites a cutting-edge 200MP Gen4 sensor with a mechanical variable aperture (f/1.4 to f/2.4), dual 50MP telephotos, 2nm Snapdragon compute, and an integrated S Pen within Grade 5 titanium.
- Display
- 6.9"
- Chipset
- Qualcomm Snapdragon 8 Elite Gen 2 for Galaxy
- Main camera
- 200MP
- Battery
- 5,500mAh
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