Phone Comparison - Panasonic P51 vs Samsung Galaxy Grand 2 vs Panasonic P31

general General Info

Manufacturer Panasonic Samsung Panasonic
Announced May 2013 November 2013 March 2014
Status Available - May 2013 Available - Q4 2013 Available - May 2014
Colors Black, White Black, White, Pink Pure White, Bluish Black
Form Factor Candybar Candybar Candybar
Dimension 144 x 75 x 8.5 mm
(5.67 x 2.95 x 0.33 in)
146.8 x 75.3 x 8.9 mm
(5.78 x 2.96 x 0.35 in)
-
Weight 135 g (4.76 oz) 163 g (5.75 oz) -
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SM-G7100
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 - G7102
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 2100
4G Network - LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) - SM-G7105 -
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2 (Jelly Bean) Android OS, v4.3 (Jelly Bean) Android OS, v4.2.2 (Jelly Bean)
Processor Quad-core 1.2 GHz Cortex-A7, MTK MT6589 Quad-core 1.2 GHz Cortex-A7 Quad-core 1.3 GHz, Mediatek MT6582M
GPU PowerVR SGX544 - Mali-400MP2
RAM 1 GB 1.5 GB 512 MB
Internal Memory 4 GB storage 8 GB 4 GB ROM
External Memory microSD, up to 32 GB microSD, up to 64 GB microSD, up to 32 GB

display Display

Type IPS LCD capacitive touchscreen TFT capacitive touchscreen TFT Capacitive Touchscreen, Ultra Oleophobic Coating
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 5.25 inches 5 inches
Resolution 720 x 1280 pixels (294 ppi) 720 x 1280 pixels (280 ppi) 480 x 854 pixels (196 ppi)
Screen-to-Body Ratio 63.69% 68.61% -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio FM Radio with Recording FM Radio with Recording
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 8 MP, 3264 x 2448 pixels 8 MP, 3264x2448 pixels 8 MP, 3264x2448 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR
Video Yes, 1080p Yes, 1080p@30fps, stereo sound rec. Yes, 1080p@30fps
Front Camera Yes, 1.3 MP, 720p [Similar] Yes, 1.9 MP, 720p [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 11 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v4.0 with A2DP, EDR Yes, v4.0 with A2DP, LE, EDR Yes, v4.0 with A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot, DLNA Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
USB Yes, microUSB v2.0, USB On-the-go Yes, microUSB v2.0 Yes, microUSB v2.0, USB On-the-go
GPS Yes, with A-GPS support Yes, with A-GPS, support and GLONASS Yes, with A-GPS support
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 4 GB storage, 1 GB RAM 8 GB, 1.5 GB RAM 4 GB ROM, 512 MB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 64 GB microSD, up to 32 GB
USB OTG Supported - Supported

Apps Sensors

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

battery Battery

Type Li-Ion Battery Li-Ion Battery Li-Ion Battery
Capacity 2500 mAh 2600 mAh 2000 mAh
Stand by - - Up to 699 h
Talk Time - Up to 17 h Up to 9 h