Screen size
Galaxy 5513.2"
Galaxy S25Winner: 6.2"+48%
Quick verdict
Galaxy S25 leads the measured specs 20-3.
Measured wins
Galaxy 551
3
spec wins
Ties
0
equal specs
Galaxy S25
20
spec wins
Overall winner
Screen size
Technology
Galaxy 551
GSM / HSPA
Galaxy S25
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
Galaxy 551
GSM 850 / 900 / 1800 / 1900
Galaxy S25
GSM 850 / 900 / 1800 / 1900 , CDMA 800 / 1900 & TD-SCDMA
3G bands
Galaxy 551
HSDPA 900 / 2100 , HSDPA 850 / 2100
Galaxy S25
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1xEV-DO
Speed
Galaxy 551
HSPA 7.2/0.384 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
3.5mm jack
SD card
Stereo speakers
Galaxy S25
HSPA, LTE (up to 7CA), 5G
4G bands
Galaxy 551
-
Galaxy S25
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International, 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71 - USA unlocked
5G bands
Galaxy 551
-
Galaxy S25
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International, 1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked
Announced
Galaxy 551
2010, October. Released 2010, Q4
Galaxy S25
2025, January 22
Status
Galaxy 551
Discontinued
Galaxy S25
Available. Released 2025, February 03
Dimensions
Galaxy 551
111 x 55 x 15.2 mm (4.37 x 2.17 x 0.60 in)
Galaxy S25
146.9 x 70.5 x 7.2 mm (5.78 x 2.78 x 0.28 in)
Weight
Galaxy 551
117 g (4.13 oz)
Galaxy S25
162 g (5.71 oz)
Keyboard
Galaxy 551
QWERTY
Galaxy S25
-
SIM
Galaxy 551
Mini-SIM
Galaxy S25
· 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
Galaxy 551
-
Galaxy S25
Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame
Other
Galaxy 551
-
Galaxy S25
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Armor aluminum 2 frame
Type
Galaxy 551
TFT
Galaxy S25
Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 2600 nits (peak)
Size
Galaxy 551
3.2 inches, 29.1 cm2 (~47.7% screen-to-body ratio)
Galaxy S25
6.2 inches, 94.4 cm2 (~91.1% screen-to-body ratio)
Resolution
Galaxy 551
240 x 400 pixels, 5:3 ratio (~146 ppi density)
Galaxy S25
1080 x 2340 pixels, 19.5:9 ratio (~416 ppi density)
Other
Galaxy 551
TouchWiz 3.0 UI
Galaxy S25
-
Protection
Galaxy 551
-
Galaxy S25
Corning Gorilla Glass Victus 2, Mohs level 5
OS
Galaxy 551
Android 2.2 (Froyo), upgradable to 2.3.6 (Gingerbread)
Galaxy S25
Android 15, up to 7 major Android upgrades, One UI 8
Chipset
Galaxy 551
Qualcomm MSM7227 Snapdragon S1
Galaxy S25
Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm)
CPU
Galaxy 551
600 MHz
Galaxy S25
Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Galaxy 551
Adreno 200
Galaxy S25
Adreno 830 (1200 MHz)
Card slot
Galaxy 551
microSDHC (dedicated slot), 1 GB included
Galaxy S25
No
Internal
Galaxy 551
160MB
Galaxy S25
128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Other
Galaxy 551
DNSe sound enhancement
Galaxy S25
UFS 4.0
Single
Galaxy 551
3.15 MP, AF
Galaxy S25
-
Video
Galaxy 551
320p@15fps
Galaxy S25
8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS
Triple
Galaxy 551
-
Galaxy S25
50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP, f/2.4, 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Features
Galaxy 551
-
Galaxy S25
Best Face, LED flash, auto-HDR, panorama
Other
Galaxy 551
No
Galaxy S25
-
Single
Galaxy 551
-
Galaxy S25
12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF
Features
Galaxy 551
-
Galaxy S25
HDR, HDR10+
Video
Galaxy 551
-
Galaxy S25
4K@30/60fps, 1080p@30fps
Loudspeaker
Galaxy 551
Yes
Galaxy S25
Yes, with stereo speakers
3.5mm jack
Galaxy 551
Yes
Galaxy S25
No
Other
Galaxy 551
-
Galaxy S25
High-bitrate audio support
WLAN
Galaxy 551
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Galaxy S25
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
Galaxy 551
2.1, A2DP
Galaxy S25
5.4, A2DP, LE
Positioning
Galaxy 551
GPS, A-GPS
Galaxy S25
GPS, GLONASS, BDS, GALILEO, QZSS
Radio
Galaxy 551
Stereo FM radio, RDS
Galaxy S25
No
USB
Galaxy 551
microUSB 2.0
Galaxy S25
USB Type-C 3.2, DisplayPort 1.2, OTG
NFC
Galaxy 551
-
Galaxy S25
Yes
Sensors
Galaxy 551
Accelerometer, proximity, compass
Galaxy S25
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Browser
Galaxy 551
HTML
Galaxy S25
-
Other
Galaxy 551
MP4/WMV/H.263 player MP3/WAV/eAAC+ player Document viewer
Galaxy S25
Samsung DeX, Samsung Wireless DeX (desktop experience support)
Type
Galaxy 551
Removable Li-Ion 1200 mAh battery
Galaxy S25
Li-Ion 4000 mAh
Stand-by
Galaxy 551
Up to 520 h (2G) / Up to 370 h (3G)
Galaxy S25
-
Talk time
Galaxy 551
Up to 9 h (2G) / Up to 5 h (3G)
Galaxy S25
-
Charging
Galaxy 551
-
Galaxy S25
25W wired, PD3.0, 50% in 30 min 15W wireless (Qi2 Ready) 4.5W reverse wireless
Colors
Galaxy 551
Black
Galaxy S25
Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, Blue Black
SAR
Galaxy 551
0.18 W/kg (head) 0.90 W/kg (body)
Galaxy S25
1.13 W/kg (head) 0.92 W/kg (body)
SAR EU
Galaxy 551
0.38 W/kg (head)
Galaxy S25
1.29 W/kg (head) 1.36 W/kg (body)
Price
Galaxy 551
About 90 EUR
Galaxy S25
$ 799.99 / C$ 679.99 / £ 429.99 / € 589.90 / ₹ 74,999
Models
Galaxy 551
-
Galaxy S25
SM-S931B, SM-S931B/DS, SM-S931U, SM-S931U1, SM-S931W, SM-S931N, SM-S9310, SM-S931E, SM-S931E/DS