Samsung Galaxy S Relay 4G vs Samsung Galaxy 551

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          General Info

          Manufacturer
          Samsung Samsung
          Announced
          September 2012 October 2010
          Status
          Available - September 2012 Available - Q4 2010
          Colors
          Black Black
          Form Factor
          Slider, QWERTY, Candybar Candybar
          Dimension
          125.9 x 64.8 x 13.5 mm
          (4.96 x 2.55 x 0.53 in)
          111 x 55 x 15.2 mm
          (4.37 x 2.17 x 0.6 in)
          Weight
          147 g (5.19 oz) 117 g (4.13 oz)
          2G Network
          GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
          3G Network
          HSDPA 850 / 1700 / 1900 / 2100 HSDPA 900 / 2100
          HSDPA 850 / 2100
          4G Network
          LTE 700 / 1700 -
          Messaging
          SMS, MMS, EMail, IM SMS, MMS, EMail, IM

          Hardware and OS

          OS
          Android OS, v4.0 (Ice Cream Sandwich) Android OS, v2.2 (Froyo), upgradable to v2.3.6 (Gingerbread)
          Processor
          Dual-core 1.5 GHz Scortpion, Qualcomm MSM8260 Snapdragon [Similar] 600 MHz, Qualcomm MSM7227 [Similar]
          GPU
          Adreno 220 [Similar] Adreno 200 [Similar]
          RAM
          1 GB [Browse Similar] N/A
          Internal Memory
          8 GB storage 160 MB
          External Memory
          microSD, up to 32 GB microSD, up to 32 GB, 1 GB included

          Display

          Type
          Super AMOLED capacitive touchscreen TFT capacitive touchscreen
          Colors
          16M colors 16M colors
          Size
          4.0 inches [Similar] 3.2 inches [Similar]
          Resolution
          480 x 800 pixels (233 ppi) [Similar] 240 x 400 pixels (146 ppi)
          Screen-to-Body Ratio
          55.94% 47.59%
          Multi-Touch
          yes multi touch yes multi touch

          Camera

          Rear Camera
          5 MP, 2592x1944 pixels [Similar] 3.15 MP, 2048x1536 pixels [Similar]
          Flash
          LED flash No
          Features
          Auto focus, Geo-tagging, Touch Focus Auto focus,
          Video
          Yes, 720p@30fps Yes, QVGA@15fps
          Front Camera
          Yes, 1.3 MP [Similar] No [Similar]

          Multimedia

          3.5mm Jack
          3.5 mm jack yes 3.5 mm jack yes
          Radio
          No Stereo FM radio with RDS
          Games
          Yes + Downloadable Yes + Downloadable
          Loud Speaker
          loudspeaker yes loudspeaker yes

          Connectivity and Data Rate

          GPRS
          Yes Class 10 (4+1/3+2 slots), 32 - 48 kbps
          Edge
          Yes Class 12
          3G
          HSDPA, 42 Mbps; HSUPA HSDPA, 7.2 Mbps; HSUPA
          Bluetooth
          Yes, v3.0 with A2DP Yes, v2.1 with A2DP
          Wi-Fi
          Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot
          USB
          Yes, microUSB v2.0 Yes, microUSB v2.0
          GPS
          Yes, with A-GPS Yes, with A-GPS support
          Browser
          HTML, Adobe Flash HTML

          User Memory

          Internal
          8 GB storage, 1 GB RAM 160 MB
          Expandable Storage
          microSD, up to 32 GB microSD, up to 32 GB, 1 GB included

          Sensors

          Fingerprint
          fingerprint not supported fingerprint not supported
          Proximity Sensor
          proximity sensor present proximity sensor present
          Accelerometer Sensor
          accelerometer sensor present accelerometer sensor present
          NFC
          NFC supported NFC not supported

          Battery

          Type
          Standard battery, Li-Ion Li-Ion Battery
          Capacity
          1800 mAh 1200 mAh
          Stand by
          Up to 312 h Up to 520 h (2G)
          Up to 370 h (3G)
          Talk Time
          Up to 10 h Up to 9 h (2G)
          Up to 5 h (3G)

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