Samsung Galaxy 551 specification and features

Network
Technology GSM / HSPA
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 900 / 2100
  HSDPA 850 / 2100
Speed HSPA 7.2/0.384 Mbps
Launch
Announced 2010, October. Released 2010, Q4
Status Discontinued
Body
Dimensions 111 x 55 x 15.2 mm (4.37 x 2.17 x 0.60 in)
Weight 117 g (4.13 oz)
Keyboard QWERTY
SIM Mini-SIM
Display
Type TFT capacitive touchscreen, 16M colors
Size 3.2 inches, 29.1 cm2 (~47.7% screen-to-body ratio)
Resolution 240 x 400 pixels, 5:3 ratio (~146 ppi density)
  TouchWiz 3.0 UI
Platform
OS Android 2.2 (Froyo), upgradable to 2.3.6 (Gingerbread)
Chipset Qualcomm MSM7227 Snapdragon S1
CPU 600 MHz
GPU Adreno 200
Memory
Card slot microSDHC (dedicated slot), 1 GB included
Internal 160MB
  DNSe sound enhancement
Main Camera
Single 3.15 MP, AF
Video 320p@15fps
Selfie camera
  No
Sound
Loudspeaker Yes
3.5mm jack Yes
Comms
WLAN Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth 2.1, A2DP
GPS Yes, with A-GPS
Radio Stereo FM radio, RDS
USB microUSB 2.0
Features
Sensors Accelerometer, proximity, compass
Browser HTML
  MP4/WMV/H.263 player
MP3/WAV/eAAC+ player
Document viewer
Battery
  Removable Li-Ion 1200 mAh battery
Stand-by Up to 520 h (2G) / Up to 370 h (3G)
Talk time Up to 9 h (2G) / Up to 5 h (3G)
Misc
Colors Black
SAR 0.18 W/kg (head)     0.90 W/kg (body)    
SAR EU 0.38 W/kg (head)    
Tests
Camera Photo
Loudspeaker Voice 69dB / Noise 66dB / Ring 72dB

Audio quality Noise -85.0dB / Crosstalk -32.4dB
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