Phone Comparison - Panasonic T31 vs Sony Xperia E3 Dual vs Sony Xperia E4 Dual

general General Info

Manufacturer Panasonic Sony Sony
Announced October 2013 September 2014 February 2015
Status Available - November 2013 Available - September 2014 Available - March 2015
Price - Rs. 9,614 ($141.38) [Similarly Priced] Rs. 11,490 ($168.97) [Similarly Priced]
Colors Bluish Black, Pure White Black, White, Yellow, Copper Black, White
Form Factor Candybar Candybar Candybar
Dimension 122 x 64.4 x 11.95 mm
(4.8 x 2.54 x 0.47 in)
137.1 x 69.4 x 8.5 mm
(5.4 x 2.73 x 0.33 in)
137 x 74.6 x 10.5 mm
(5.39 x 2.94 x 0.41 in)
Weight 120 g (4.23 oz) 143.8 g (5.04.0.28 oz) 144 g (5.08 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100 - E2114, E2124
HSDPA 900 / 2100 - E2115
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2.2 (Jelly Bean) with FOTA upgrade Android OS, v4.4.2 (KitKat) Android OS, v4.4.4 (KitKat)
Processor Dual-core 1.3 GHz, MTK 6572 Quad-core 1.2 GHz Cortex-A7, Qualcomm MSM8226-2 Snapdragon 400 Quad-core 1.3 GHz Cortex-A7, Mediatek MT6582
GPU Mali-400 Adreno 305 Mali-400MP2
RAM 512 MB 1 GB 1 GB
Internal Memory 4 GB (1.9 GB user memory) 4 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen IPS Capacitive Touchscreen, Shatter Proof Glass IPS Capacitive Touchscreen, Scratch-resistant Glass
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 4.5 inches 5.0 inches
Resolution 480 x 800 pixels (233 ppi) 480 x 854 pixels (218 ppi) 540 x 960 pixels (220 ppi)
Screen-to-Body Ratio 58.08% 58.49% 67.61%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 3.2 MP, 2048x1536 pixels 5 MP, 2592 х 1944 pixels 5 MP, 2592 х 1944 pixels
Flash No LED flash LED flash
Features Fixed Focus, Geo-tagging Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama
Video Yes, VGA@30fps 1080p@30fps 1080p@30fps
Front Camera Yes, VGA [Similar] VGA [Similar] 2 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Up to 85.6 kbps Up to 107 kbps
Edge Yes Up to 237 kbps Up to 296 kbps
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA 21.1/5.76 Mbps HSPA 21.1/5.76 Mbps
Bluetooth Yes, v4.0 with A2DP v4.0, A2DP v4.1, A2DP, apt-X
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB Yes, microUSB v2.0 microUSB v2.0, USB On-the-go, USB Host microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS Yes, with A-GPS
Browser HTML5 HTML5 HTML

memory User Memory

Internal 4 GB (1.9 GB user memory), 512 MB RAM 4 GB, 1 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB
USB OTG - 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 supported NFC not supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Non-removable Li-Ion Battery
Capacity 1300 mAh 2330 mAh 2300 mAh
Stand by Up to 510 h (2G)
Up to 400 h (3G)
Up to 508 h (2G)
Up to 505 h (3G)
Up to 552 h (2G)
Up to 548 h (3G)
Talk Time Up to 3 h 30 min (2G)
Up to 9 h 30 min (3G)
Up to 12 h 20 min (2G)
Up to 8 h 41 min (3G)
Up to 12 h (2G)
Up to 12 h 40 min (3G)