Karbonn A21 vs Jolla

General Info

Manufacturer
Karbonn	Jolla
Announced
2012	May, 2013
Status
Available	Available - December 2013
Colors
Pearl White	Black, Orange, Aloe, Blue, Pink, Coffee, Black, Lime, White
Form Factor
Candybar	Candybar
Dimension
-	131 x 68 x 9.9 mm (5.16 x 2.68 x 0.39 in)
Weight
-	141 g (4.97 oz)
2G Network
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900
3G Network
HSDPA 2100	HSDPA 850 / 900 / 1900 / 2100
4G Network
-	LTE
Messaging
SMS, MMS, Push Mail, EMail, IM	SMS, MMS, Push Mail, EMail, IM

OS
Android OS, v4.0 (Ice Cream Sandwich)	Sailfish OS
Processor
Dual-core 1.2 GHz [Similar]	Dual-core 1.4 GHz, Qualcomm [Similar]
GPU
-	-
RAM
512 MB [Browse Similar]	1 GB [Browse Similar]
Internal Memory
4 GB	16 GB ROM
External Memory
microSD, up to 32 GB	microSD, up to 64 GB

Type
TFT capacitive touchscreen	IPS LCD Capacitive Touchscreen, Gorilla 2 Glass
Colors
256K colors	16M colors
Size
4.5 inches [Similar]	4.5 inches [Similar]
Resolution
480 x 800 pixels (207 ppi) [Similar]	540 x 960 pixels (245 ppi) [Similar]
Screen-to-Body Ratio
-	62.55%
Multi-Touch

Rear Camera
5 MP, 2592х1944 pixels [Similar]	8 MP, 3264 x 2448 pixels [Similar]
Flash
LED flash	LED flash
Features
Auto focus, Geo-tagging, Face Detection	Auto focus, Geo-tagging, Touch Focus, Face Detection
Video
Yes	Yes, 1080p@30fps
Front Camera
Yes, 1.3 MP [Similar]	Yes, 2 MP [Similar]

GPRS
Yes	Yes
Edge
Yes	Yes
3G
HSDPA, 7.2 Mbps	HSDPA; HSUPA; LTE
Bluetooth
Yes, v2.1 with A2DP	Yes, v4.0 with A2DP, LE, EDR
Wi-Fi
Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
USB
Yes, microUSB v2.0	Yes, v2.0
GPS
Yes, with A-GPS support	Yes, with A-GPS support and GLONASS
Browser
HTML	HTML5