Phone Comparison - Karbonn A21 vs Samsung Galaxy Grand 2 vs Sony Xperia E3

general General Info

Manufacturer Karbonn Samsung Sony
Announced 2012 November 2013 September 2014
Status Available Available - Q4 2013 Available - September 2014
Colors Pearl White Black, White, Pink Black, White, Lime, Copper
Form Factor Candybar Candybar Candybar
Dimension - 146.8 x 75.3 x 8.9 mm
(5.78 x 2.96 x 0.35 in)
137.7 x 69.4 x 8.5 mm
(5.42 x 2.73 x 0.33 in)
Weight - 163 g (5.75 oz) 143 g (5.04 oz)
2G Network GSM 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 - D2203, D2206, D2243, D2202
3G Network HSDPA 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100 - D2203
HSDPA 850 / 900 / 1900 / 2100 - D2202
4G Network - LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) - SM-G7105 LTE 800 / 850 / 1800 / 2100 / 2600 - D2203
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM
Build Features - - Shatter Proof Glass

hardware Hardware and OS

OS Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.3 (Jelly Bean) Android OS, v4.4 (KitKat)
Processor Dual-core 1.2 GHz Quad-core 1.2 GHz Cortex-A7 Quad-core 1.2 GHz, Qualcomm MSM8926-2
GPU - - Adreno 305
RAM 512 MB 1.5 GB 1 GB
Internal Memory 4 GB 8 GB 4 GB
External Memory microSD, up to 32 GB microSD, up to 64 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen TFT capacitive touchscreen IPS LCD Capacitive Touchscreen
Colors 256K colors 16M colors 16M colors
Size 4.5 inches 5.25 inches 4.5 inches
Resolution 480 x 800 pixels (207 ppi) 720 x 1280 pixels (280 ppi) 480 x 854 pixels (218 ppi)
Screen-to-Body Ratio - 68.61% 58.23%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592х1944 pixels 8 MP, 3264x2448 pixels 5 MP, 2592 х 1944 pixels
Flash LED flash LED flash LED Flash
Features Auto focus, Geo-tagging, Face Detection Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization Auto focus, Geo-tagging, Touch Focus, Face Detection, Image Stabilization, HDR, Panorama
Video Yes Yes, 1080p@30fps, stereo sound rec. 1080p@30fps
Front Camera Yes, 1.3 MP [Similar] Yes, 1.9 MP, 720p [Similar] VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Up to 107 kbps
Edge Yes Yes Up to 296 kbps
3G HSDPA, 7.2 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL
Bluetooth Yes, v2.1 with A2DP Yes, v4.0 with A2DP, LE, EDR v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi hotspot, DLNA Wi-Fi 802.11 b/g/n, dual-band, Wi-Fi Direct, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 microUSB v2.0 (MHL 3), USB On-the-go, USB Host
GPS Yes, with A-GPS support Yes, with A-GPS, support and GLONASS Yes, with A-GPS
Browser HTML HTML5 HTML5

memory User Memory

Internal 4 GB, 512 MB RAM 8 GB, 1.5 GB RAM 4 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 64 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 Non-removable Li-Ion Battery
Capacity 1800 mAh 2600 mAh 2330 mAh
Stand by Up to 200 h - Up to 706 h
Talk Time Up to 5 h Up to 17 h Up to 12 h 20 min