Phone Comparison - Karbonn A29 vs Lenovo A390 vs Asus Zenfone 4

general General Info

Manufacturer Karbonn Lenovo Asus
Announced July 2013 April 2013 January 2014
Status Available - July 2013 Available - April 2013 Available - June 2014
Colors Black Black, White Black, White, Red, Blue, Yellow
Form Factor Candybar Candybar Candybar
Dimension - 125.6 x 64 x 10.1 mm
(4.94 x 2.52 x 0.4 in)
124.4 x 61.4 x 6.3-11.2
(4.9 x 2.42 x 0.25-0.44)
Weight - 131 g (4.62 oz) 115 g (4.06 oz)
2G Network GSM 900 / 1800 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 2100 HSDPA 850 / 900 / 1900 / 2100
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.1 (Jelly Bean) Android OS, v4.0.4 (Ice Cream Sandwich) Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat)
Processor Dual-core 1.2 GHz, MTK 6577 Dual-core 1 GHz, MTK 6577 Dual-core 1.2 GHz, Intel Atom Z2520
GPU - PowerVR SGX531 PowerVR SGX544MP2
RAM 512 MB 512 MB 1 GB
Internal Memory 4 GB (2.53 GB user available) 4 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 64 GB

display Display

Type IPS LCD Capacitive Touchscreen Capacitive touchscreen LCD Capacitive Touchscreen, Corning Gorilla Glass 3
Colors 16M colors - 16M colors
Size 4.7 inches 4.0 inches 4.0 inches
Resolution 540 x 960 pixels (234 ppi) 480 x 800 pixels (233 ppi) 480 x 800 pixels (233 ppi)
Screen-to-Body Ratio - 56.77% 59.74%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 8 MP, 3264 x 2448 pixels 5 MP, 2592 х 1944 pixels 5 MP, 2592 x 1944 pixels
Flash LED flash No No
Features Auto focus, Geo-tagging Geo-tagging Auto focus, Geo-tagging, Panorama
Video Yes, 720p Yes Yes, 1080p@30fps
Front Camera Yes, 2 MP [Similar] No [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, HSUPA HSDPA, HSUPA HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes Yes Yes, v4.0 with A2DP, EDR
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS support
Browser HTML5 HTML5 HTML

memory User Memory

Internal 4 GB (2.53 GB user available), 512 MB RAM 4 GB, 512 MB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 64 GB

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-Po Battery
Capacity 2000 mAh 1500 mAh 1200/1600 mAh
Stand by - Up to 220 h (2G)
Up to 180 h (3G)
Up to 192 h
Talk Time - Up to 14 h (2G)
Up to 9 h (3G)
Up to 10 h