Phone Comparison - Nokia Lumia 520 vs Nokia X vs Nokia Lumia 635

general General Info

Manufacturer Nokia Nokia Nokia
Announced February 2013 February 2014 April 2014
Status Available - April 2013 Available - February 2014 Available - May 2014
Colors Yellow, red, cyan, white/black White, Black, Red, Yellow, Green, Cyan Orange, Yellow, White, Black
Form Factor Candybar Candybar Candybar
Dimension 119.9 x 64 x 9.9 mm
(4.72 x 2.52 x 0.39 in)
115.5 x 63 x 10.4 mm
(4.55 x 2.48 x 0.41 in)
129.5 x 66.7 x 9.2 mm
(5.1 x 2.63 x 0.36 in)
Weight 124 g (4.37 oz) 128.7 g (4.52.0.25 oz) 134 g (4.73 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 2100
HSDPA 850 / 1900 / 2100
HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network - - LTE
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 Nokia X Software Platform 1.0 Based on Android v4.1.2 (JellyBean) Microsoft Windows Phone 8.1
Processor Dual-core 1 GHz, Qualcomm MSM8227 Snapdragon S4 Dual-core 1 GHz, Qualcomm MSM8225 Snapdragon Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU Adreno 305 Adreno 203 Adreno 305
RAM 512 MB 512 MB 512 MB
Internal Memory 8 GB storage 4 GB ROM 8 GB
External Memory microSD, up to 64 GB microSD, up to 32 GB microSD, up to 64 GB

display Display

Type IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 4.0 inches 4.5 inches
Resolution 480 x 800 pixels (233 ppi) 480 x 800 pixels (233 ppi) 480 x 854 pixels (218 ppi)
Screen-to-Body Ratio 59.47% 62.71% 64.43%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592х1944 pixels 3 MP, 2048x1536 pixels 5 MP, 2592 х 1944 pixels
Flash No No No
Features Auto focus, Geo-tagging Fixed focus, Geo-tagging, Face And Smile Detection, Panorama Geo-tagging
Video Yes, 720p@30fps Yes Yes, 720p@30fps
Front Camera No [Similar] No [Similar] No [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Up to 85.6 kbps Yes
Edge Yes Up to 236.8 kbps Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL
Bluetooth Yes, v4.0 with A2DP Yes, v3.0 with A2DP, HS Yes, v4.0 with A2DP
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
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS support Yes, with A-GPS support and GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB storage, 512 MB RAM 4 GB ROM, 512 MB RAM 8 GB, 512 MB RAM
Expandable Storage microSD, up to 64 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-Ion Battery
Capacity 1430 mAh 1500 mAh 1830 mAh
Stand by Up to 384 h (3G)
Up to 360 h (3G)
Up to 408 h Up to 648 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)
Up to 12 h (2G)
Up to 14 h (3G)