Phone Comparison - Nokia Lumia 520 vs Karbonn Smart A26 vs Nokia X

general General Info

Manufacturer Nokia Karbonn Nokia
Announced February 2013 June 2013 February 2014
Status Available - April 2013 Available - July 2013 Available - February 2014
Colors Yellow, red, cyan, white/black Black, White White, Black, Red, Yellow, Green, Cyan
Form Factor Candybar Candybar Candybar
Dimension 119.9 x 64 x 9.9 mm
(4.72 x 2.52 x 0.39 in)
146 x 74 x 8.65 mm
(5.75 x 2.91 x 0.34 in)
115.5 x 63 x 10.4 mm
(4.55 x 2.48 x 0.41 in)
Weight 124 g (4.37 oz) - 128.7 g (4.52.0.25 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 2100
HSDPA 850 / 1900 / 2100
No HSDPA 900 / 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 Microsoft Windows Phone 8 Android OS, v4.1.2 (Jelly Bean) Nokia X Software Platform 1.0 Based on Android v4.1.2 (JellyBean)
Processor Dual-core 1 GHz, Qualcomm MSM8227 Snapdragon S4 Dual-core 1 GHz Dual-core 1 GHz, Qualcomm MSM8225 Snapdragon
GPU Adreno 305 - Adreno 203
RAM 512 MB N/A 512 MB
Internal Memory 8 GB storage 4 GB (2.12 GB user available), 512 MB 4 GB ROM
External Memory microSD, up to 64 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type IPS LCD capacitive touchscreen TFT Capacitive Touchscreen IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 5.0 inches 4.0 inches
Resolution 480 x 800 pixels (233 ppi) 480 x 854 pixels (196 ppi) 480 x 800 pixels (233 ppi)
Screen-to-Body Ratio 59.47% 63.72% 62.71%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592х1944 pixels 5 MP, 2592х1944 pixels 3 MP, 2048x1536 pixels
Flash No LED flash No
Features Auto focus, Geo-tagging Geo-tagging, Touch Focus, Face Detection Fixed focus, Geo-tagging, Face And Smile Detection, Panorama
Video Yes, 720p@30fps Yes Yes
Front Camera No [Similar] Yes, VGA [Similar] No [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Up to 85.6 kbps
Edge Yes Yes Up to 236.8 kbps
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps No HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v4.0 with A2DP Yes, with A2DP Yes, v3.0 with A2DP, HS
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support and GLONASS No Yes, with A-GPS support
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB storage, 512 MB RAM 4 GB (2.12 GB user available), 512 MB 4 GB ROM, 512 MB RAM
Expandable Storage microSD, up to 64 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 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-Ion Battery
Capacity 1430 mAh 2000 mAh 1500 mAh
Stand by Up to 384 h (3G)
Up to 360 h (3G)
- Up to 408 h
Talk Time Up to 17 h 24 min (2G)
Up to 9 h 42 min (3G)
- Up to 13 h 18 min (2G)
Up to 10 h 30 min (3G)