Phone Comparison - Karbonn A15 vs Karbonn A21 vs Spice Mi-510 Stellar Prime

general General Info

Manufacturer Karbonn Karbonn Spice
Announced 2012 2012 June 2013
Status Available Available Available - July 2013
Colors Black Pearl White White
Form Factor Candybar Candybar Candybar
Dimension - - 145 x 74 x 9.9 mm
(5.71 x 2.91 x 0.39 in)
Weight - - 176 g (6.21 oz)
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
3G Network HSDPA 2100 HSDPA 2100 HSDPA 2100
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0.4 (Ice Cream Sandwich) Android OS, v4.0 (Ice Cream Sandwich) Android OS, v4.2 (Jelly Bean)
Processor 1 GHz Dual-core 1.2 GHz Quad-core 1.2 GHz
GPU - - -
RAM 512 MB 512 MB 512 MB
Internal Memory 4 GB (2.5 GB user available) 4 GB 4 GB ROM
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT touchscreen TFT capacitive touchscreen TFT capacitive touchscreen
Colors TFT touchscreen 256K colors -
Size 4.0 inches 4.5 inches 5.0 inches
Resolution 480 x 800 pixels (233 ppi) 480 x 800 pixels (207 ppi) 480 x 854 pixels (196 ppi)
Screen-to-Body Ratio - - 64.16%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 3.15 MP, 2048x1536 pixels 5 MP, 2592х1944 pixels 8 MP, 3264 x 2448 pixels
Flash No LED flash LED flash
Features Geo-tagging, Face Detection Auto focus, Geo-tagging, Face Detection -
Video Yes Yes Yes
Front Camera Yes [Similar] Yes, 1.3 MP [Similar] Yes, 3.2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps
Edge Yes Yes Class 12
3G HSDPA, 7.2 Mbps HSDPA, 7.2 Mbps HSDPA, HSUPA
Bluetooth Yes, with A2DP Yes, v2.1 with A2DP Yes, v3.0
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n Yes
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB
GPS Yes, with A-GPS support Yes, with A-GPS support Yes
Browser HTML HTML HTML

memory User Memory

Internal 4 GB (2.5 GB user available), 512 MB RAM 4 GB, 512 MB RAM 4 GB ROM, 512 MB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor not present proximity sensor present proximity sensor not 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-Ion Battery
Capacity 1420 mAh 1800 mAh 2100 mAh
Stand by Up to 150 h Up to 200 h Up to 250 h
Talk Time - Up to 5 h Up to 6 h