Phone Comparison - Karbonn A21 vs Nokia Lumia 928

Karbonn A21
karbonn a21
Nokia Lumia 928
nokia lumia 928
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general General Info

Manufacturer Karbonn Nokia
Announced 2012 April 2013
Status Available Available - May 2013
Colors Pearl White Black, White
Form Factor Candybar Candybar
Dimension - 133 x 68.9 x 10.1 mm
(5.24 x 2.71 x 0.4 in)
Weight - 162 g (5.71 oz)
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
CDMA 800 / 1900
3G Network HSDPA 2100 HSDPA 850 / 900/ 1900 / 2100
CDMA2000 1xEV-DO
4G Network - LTE
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.0 (Ice Cream Sandwich) Microsoft Windows Phone 8
Processor Dual-core 1.2 GHz [Similar] Dual-core 1.5 GHz, Qualcomm MSM8960 Snapdragon [Similar]
GPU - Adreno 225 [Similar]
RAM 512 MB [Browse Similar] 1 GB [Browse Similar]
Internal Memory 4 GB 32 GB storage
External Memory microSD, up to 32 GB No

display Display

Type TFT capacitive touchscreen AMOLED Capacitive touchscreen
Colors 256K colors 16M colors
Size 4.5 inches [Similar] 4.5 inches [Similar]
Resolution 480 x 800 pixels (207 ppi) [Similar] 768 x 1280 pixels (332 ppi)
Screen-to-Body Ratio - 62.79%
Multi-Touch yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592х1944 pixels [Similar] 8.7 MP, 3264 x 2448 pixels [Similar]
Flash LED flash Xenon Flash
Features Auto focus, Geo-tagging, Face Detection 1.4 ┬Ám pixel size, PureView Technology, Geo-tagging, Touch Focus, Panorama, Carl Zeiss optics, optical image stabilization, autofocus, Automatic motion blur reduction
Video Yes Yes, 1080p@30fps, video stabilization
Front Camera Yes, 1.3 MP [Similar] Yes, 1.3 MP, 720p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes
Edge Yes Up to 237 kbps
3G HSDPA, 7.2 Mbps EV-DO Rev. A, up to 3.1 Mbps, HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL
Bluetooth Yes, v2.1 with A2DP Yes, v3.0 with A2DP
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot, Wi-Fi Channel Bonding
USB Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support and GLONASS
Browser HTML HTML5

memory User Memory

Internal 4 GB, 512 MB RAM 32 GB storage, 1 GB RAM
Expandable Storage microSD, up to 32 GB No

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC supported

battery Battery

Type Li-Ion Battery Non-removable Li-Ion battery (BV-4NW)
Capacity 1800 mAh 2000 mAh
Stand by Up to 200 h Up to 606 h (2G)
Up to 541 h (3G)
Talk Time Up to 5 h Up to 11 h 48 min (2G)
Up to 16 h 12 min (3G)