Phone Comparison - Panasonic T31 vs Sony Xperia E1 Dual vs Panasonic T40

general General Info

Manufacturer Panasonic Sony Panasonic
Announced October 2013 January 2014 October 2014
Status Available - November 2013 Available - January 2014 Available - October 2014
Price - - Rs. 4,799 ($70.57) [Similarly Priced]
Colors Bluish Black, Pure White Black, Purple, White White, Dark Grey, Bright Red
Form Factor Candybar Candybar Candybar
Dimension 122 x 64.4 x 11.95 mm
(4.8 x 2.54 x 0.47 in)
118 x 62.4 x 12 mm
(4.65 x 2.46 x 0.47 in)
126 x 62.5 x 9.0 mm
(4.96 x 2.46 x 0.35 in)
Weight 120 g (4.23 oz) 122 g (4.3 oz) 117 g (4.13 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - all versions GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 1900 / 2100 HSDPA 850 / 1900 / 2100 - D2104/D2114
HSDPA 900 / 2100 - D2105
HSDPA 2100
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, v4.3 (Jelly Bean) Android OS, v4.4.2 (KitKat)
Processor Dual-core 1.3 GHz, MTK 6572 Dual-core 1.2 GHz, Qualcomm MSM8210 Quad-core 1.3 GHz, Mediatek MT6582M
GPU Mali-400 Adreno 302 Mali-400MP2
RAM 512 MB 512 MB 1 GB
Internal Memory 4 GB (1.9 GB user memory) 4 GB 8 GB ROM
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen TFT capacitive touchscreen IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 4.0 inches 4.0 inches
Resolution 480 x 800 pixels (233 ppi) 480 x 800 pixels (233 ppi) 480 x 800 pixels (233 ppi)
Screen-to-Body Ratio 58.08% 61.98% 57.95%
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 Recording
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 3.2 MP, 2048x1536 pixels 3.15 MP, 2048x1536 pixels 5 MP, 2592x1944 pixels
Flash No No LED flash
Features Fixed Focus, Geo-tagging Geo-tagging, Face Detection, HDR, Image Stabilization, Panorama Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR
Video Yes, VGA@30fps Yes, SVGA@30FPS Yes, 1080p
Front Camera Yes, VGA [Similar] No [Similar] Yes, 2 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Up to 86 kbps Yes
Edge Yes Up to 237 kbps Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v4.0 with A2DP Yes, v4.0 with A2DP Yes, v4.0 with A2DP
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 hotspot
USB Yes, microUSB v2.0 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 (1.9 GB user memory), 512 MB RAM 4 GB, 512 MB RAM 8 GB ROM, 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 not supported NFC not supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Li-Ion Battery
Capacity 1300 mAh 1750 mAh 1500 mAh
Stand by Up to 510 h (2G)
Up to 400 h (3G)
Up to 366 h (2G)
Up to 441 h (3G)
-
Talk Time Up to 3 h 30 min (2G)
Up to 9 h 30 min (3G)
Up to 8 h 13 min (2G)
Up to 8 h 41 min (3G)
-