LG Optimus 4G LTE vs Karbonn A21

LG Optimus 4G LTE

General Info

Manufacturer
LG	Karbonn
Announced
November 2011	2012
Status
Available - November 2011	Available
Colors
Black	Pearl White
Form Factor
Candybar	Candybar
Dimension
133.9 x 67.9 x 10.5 mm (5.27 x 2.67 x 0.41 in)	-
Weight
135 g (4.76 oz)	-
2G Network
GSM 850 / 900 / 1800 / 1900	GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network
HSDPA 850 / 1900 / 2100	HSDPA 2100
4G Network
LTE 700 / 1700	-
Messaging
SMS, MMS, EMail, IM	SMS, MMS, Push Mail, EMail, IM

Display

Type
HD-IPS LCD capacitive touchscreen	TFT capacitive touchscreen
Colors
16M colors	256K colors
Size
4.5 inches [Similar]	4.5 inches [Similar]
Resolution
720 x 1280 pixels (326 ppi) [Similar]	480 x 800 pixels (207 ppi) [Similar]
Screen-to-Body Ratio
61.54%	-
Multi-Touch

Hardware and OS

OS
Android OS, v2.3 (Gingerbread), planned upgrade to v4.0	Android OS, v4.0 (Ice Cream Sandwich)
Processor
Dual-core 1.5 GHz [Similar]	Dual-core 1.2 GHz [Similar]
GPU
	-
RAM
1 GB [Browse Similar]	512 MB [Browse Similar]
Internal Memory
2 GB storage	4 GB
External Memory
microSD, up to 32GB, 8GB included	microSD, up to 32 GB

Camera

Rear Camera
8 MP, 3264x2448 pixels [Similar]	5 MP, 2592х1944 pixels [Similar]
Flash
LED flash	LED flash
Features
Auto focus, Geo-tagging, Face And Smile Detection	Auto focus, Geo-tagging, Face Detection
Video
Yes, 1080p	Yes
Front Camera
Yes, 1.3 MP [Similar]	Yes, 1.3 MP [Similar]

Multimedia

3.5mm Jack

Radio
No	No
Games
Yes	Yes + Downloadable
Loud Speaker

Connectivity and Data Rate

GPRS
Yes	Yes
Edge
Yes	Yes
3G
HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, 75 Mbps	HSDPA, 7.2 Mbps
Bluetooth
Yes, v3.0 with A2DP, EDR	Yes, v2.1 with A2DP
Wi-Fi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot	Wi-Fi 802.11 b/g/n
USB
Yes, microUSB (MHL) v2.0	Yes, microUSB v2.0
GPS
Yes, with A-GPS support	Yes, with A-GPS support
Browser
HTML, Adobe Flash	HTML

User Memory

Internal
2 GB storage, 1 GB RAM	4 GB, 512 MB RAM
Expandable Storage
microSD, up to 32GB, 8GB included	microSD, up to 32 GB

Sensors

Fingerprint

Proximity Sensor

Accelerometer Sensor

NFC

Battery

Type
Standard battery, Li-Ion	Li-Ion Battery
Capacity
	1800 mAh
Stand by
Up to 252 h	Up to 200 h
Talk Time
Up to 3 h	Up to 5 h

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