Karbonn KT21 Express vs Micromax A28 Bolt
Karbonn KT21 Express
Micromax A28 Bolt
-
Network
-
2G networkGSMGSM 900, 1800
-
GPRSYesYes
-
EDGEYesYes
-
Availability
-
Oficially announced2014-122014-12
-
Status2014-12
-
Design
-
SIMDual SIM (Mini-SIM)Dual SIM (Mini-SIM)
-
Height116.9 mm
-
Width62.5 mm
-
Thickness12.5 mm
-
Weight89 g
-
ColorsBlackBlack
-
Display
-
Display typeTFT capacitive touchscreenTFT capacitive touchscreen
-
Physical size2.8 inches3.5 inches
-
Resolution-320 x 480 pixels
-
Pixel density-165 ppi
-
Display colors-66560
-
Hardware
-
CPU1 GHz ARM Cortex-A5
-
GPU-Mali-300
-
Memory RAM-256 MB
-
Internal storage-512 MB
-
Memory cardmicroSDmicroSD
-
Memory card max32 GB32 GB
-
Main camera
-
Main camera3.15 MP
-
Primary camera resolution2048 x 1536 pixels640 x 480 pixels
-
Primary camera videovideo320p
-
Primary camera flashLED flash-
-
Selfie camera
-
Secondary cameraNoVGA camera
-
Sound
-
3.5mm jackYesYes
-
LoudspeakerYesYes
-
NotificationsVibration, Polyphonic(64), MP3 ringtonesVibration, Polyphonic, MP3 ringtones
-
Multimedia
-
Radio FMFM radioFM radio
-
Radio recordingFM recordingFM recording
-
Connectivity
-
WLANWi-Fi 802.11b, 802.11g, 802.11n
-
USBYesYes
-
BluetoothYesv2.1
-
Bluetooth A2DP-Yes
-
GPSNoNo
-
Features
-
Messaging SMSSMSSMS(threaded view)
-
Messaging MMSMMSMMS
-
Messaging EmailEmailEmail
-
Messaging IM-IM
-
JavaYesYes, via Java MIDP emulator
-
Browser
-
HTML-Yes
-
BrowserYes-
-
Battery
-
Battery typeLi-IonLi-Ion
-
Battery capacity1000 mAh1500 mAh
-
Talk time-4 h
-
Standby time-260 h
-
OS
-
OS-Android OS, v2.3 (Gingerbread)
