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Compare features, prices and ratings to find the perfect phone for you.
Our Verdict
Analysis
Samsung Galaxy S25 Ultra has the bigger display.
Overall Winner
Samsung Galaxy S25 Ultra
Display Winner
Samsung Galaxy S25 Ultra
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie
Specifications Comparison
| Feature | Acer M900 | Samsung Galaxy S25 Ultra |
|---|---|---|
| Display size (in) | 3.80 | 6.90 |
| Main camera (MP) | 5.00 | 200.00 |
| Weight (g) | 188 | 218 |
| Thickness (mm) | 17.10 | 8.20 |
| OS | Microsoft Windows Mobile 6.1 Professional | Android 15 |
Pros & Cons
Acer M900
Samsung Galaxy S25 Ultra
- Brilliant display
- Versatile camera system
- Long update commitment
- Productivity features
- Premium pricing
- Bulky design
- Slow charging vs Chinese rivals
Every Spec, Side by Side
Specification
Acer
Acer M900
Samsung
Samsung Galaxy S25 Ultra
Battery 5 specs
Type
Removable Li-Ion 1530 mAh battery
Li-Ion 5000 mAh
Stand-by
Up to 470 h
—
Talk time
Up to 4 h
—
Capacity
—
5000 mAh
Charging
—
45W wired
Body 6 specs
Dimensions
119 x 62 x 17.1 mm (4.69 x 2.44 x 0.67 in)
162.8 x 77.6 x 8.2 mm
Weight
188 g (6.63 oz)
218 g
Keyboard
QWERTY
—
SIM
Mini-SIM
· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time) - INT· Nano-SIM + eSIM + eSIM (max 2 at a time) - USA· Nano-SIM + Nano-SIM - CN
Build
—
Glass front (Corning Gorilla Armor 2), glass back (Gorilla Glass Victus 2), titanium frame (grade 5)
—
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Stylus
Connectivity 7 specs
WLAN
Wi-Fi 802.11 b/g
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
2.0, A2DP
5.4, A2DP, LE
Positioning
GPS, SiRF Star III chipset
GPS, GLONASS, BDS, GALILEO, QZSS
Radio
FM radio
No
USB
miniUSB
USB Type-C 3.2, DisplayPort 1.2, OTG
5G
—
Yes
NFC
—
Yes
Display 5 specs
Type
TFT resistive touchscreen, 65K colors
Dynamic AMOLED 2X
Size
3.8 inches, 41.1 cm2 (~55.7% screen-to-body ratio)
6.9 inches
Resolution
480 x 800 pixels, 5:3 ratio (~246 ppi density)
1440 x 3120 pixels
Widget-based UI
Handwriting recognition
DX anti-reflective coating
Protection
—
Corning Gorilla Armor 2, Mohs level 6
Features 3 specs
Sensors
Fingerprint (front-mounted)
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Browser
HTML
—
Pocket Office
Voice memo
MP3 player
Predictive text input
Samsung DeX, Samsung Wireless DeX (desktop experience support)
Ultra Wideband (UWB) support
Launch 2 specs
Announced
2009, February. Released 2009, June
2025, January 22
Status
Discontinued
Available. Released 2025, February 03
Main Camera 4 specs
Single
5 MP, AF
—
Features
LED flash
Laser AF, Best Face, LED flash, auto-HDR, panorama
Video
Yes
8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Quad
—
200 MP + 50 MP + 50 MP + 10 MP
Memory 5 specs
Card slot
microSD (dedicated slot)
No
Internal
—
256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM
—
UFS 4.0
RAM
—
12GB
Storage
—
256GB
Misc 5 specs
Colors
Black
Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold
SAR
0.43 W/kg (head) 0.92 W/kg (body)
1.26 W/kg (head) 0.64 W/kg (body)
Price
About 250 EUR
$ 806.08 / C$ 1,149.00 / £ 689.99 / € 840.00 / ₹ 99,990
Models
—
SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS
SAR EU
—
1.25 W/kg (head) 1.42 W/kg (body)
Network 7 specs
Technology
GSM / HSPA
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
HSPA 7.2/2 Mbps
HSPA, LTE (CA), 5G
—
1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
4G bands
—
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International
5G bands
—
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International
Platform 4 specs
OS
Microsoft Windows Mobile 6.1 Professional
Android 15
CPU
533 MHz Samsung S3C 6410
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
—
Adreno 830 (1200 MHz)
Chipset
—
Snapdragon 8 Elite
Selfie Camera 3 specs
Single
VGA videocall camera
12 MP
Features
—
HDR, HDR10+
Video
—
4K@30/60fps, 1080p@30fps
Sound 3 specs
Loudspeaker
Yes
Yes, with stereo speakers
3.5mm jack
No
No
—
High-bitrate audio support
Eu Label 4 specs
Energy
—
Class B
Battery
—
44:54h endurance, 2000 cycles
Free fall
—
Class A (270 falls)
Repairability
—
Class C
Our Tests 4 specs
Performance
—
AnTuTu: 2207809 (v10)
GeekBench: 9846 (v6)
3DMark: 6687 (Wild Life Extreme)
Display
—
1417 nits max brightness (measured)
Loudspeaker
—
-24.6 LUFS (Very good)
Battery
—
Active use score 14:49h
Similar Comparisons
Common Questions
Which phone is the best in this comparison?
Samsung Galaxy S25 Ultra has the bigger display.
How are the comparison winners decided?
We compare measurable specs (display size, battery capacity, RAM, charging, weight) and price (USD). When two phones tie or data is missing we mark the category "Depends".
Which is more affordable?
The cheaper option is shown as the value winner above. Prices are USD and may vary by region or retailer.