Panasonic T21 vs Panasonic T11 vs Panasonic P11 vs Panasonic P51 comparison

 
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General
Release dateSeptember 2013July 2013July 2013May 2013
Form factorTouchscreenTouchscreenTouchscreenBar
Dimensions (mm)132.00 x 66.00 x 9.80112.50 x 63.80 x 9.20143.90 x 73.30 x 9.70144.00 x 75.00 x 8.50
Weight (g)140.00120.00160.00135.00
Battery capacity (mAh)1700150020002500
Removable batteryNoYesYesYes
Colours---Black, White
SAR ValueNANANANA
Display
Screen size (inches)4.504.005.005.00
TouchscreenYesYesYesYes
Resolution720x1280 pixels480x800 pixels720x1280 pixels720x1280 pixels
Pixels per inch (PPI)326---
Hardware
Processor1.2GHz dual-core1.2GHz quad-core1.2GHz quad-core1.2GHz quad-core
Processor makeBroadcom 28145Qualcomm Snapdragon 200Qualcomm Snapdragon 200
RAM1GB1GB1GB1GB
Internal storage4GB4GB4GB4GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)32323232
Camera
Rear camera8-megapixel5-megapixel8-megapixel8-megapixel
FlashYesYesYesYes
Front camera2-megapixel0.3-megapixel2-megapixel1.3-megapixel
Software
Operating SystemAndroid 4.1Android 4.1Android 4.1Android 4.2
Connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n802.11 b/g/n802.11 b/g/n
GPSYesYesYesYes
BluetoothYes, v 2.10Yes, v 2.10Yes, v 2.10Yes, v 4.00
NFCNoNoNoNo
InfraredNoNoNoNo
Headphones3.5mm3.5mm3.5mm3.5mm
FMYesYesYesYes
Number of SIMs2222
SIM1
SIM TypeRegularRegularRegularRegular
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/LTENoNoNoNo
SIM2
SIM TypeRegularRegularRegularRegular
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/LTENoNoNoNo
Sensors
Compass/ MagnetometerYesYesNoYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeNoNoNoNo
BarometerNoNoNoNo
Temperature sensorNoNoNoNo