Phone Comparison - Nokia Lumia 820 vs Nokia Lumia 635 vs Nokia Lumia 630

general General Info

Manufacturer Nokia Nokia Nokia
Announced Expected September 2012 April 2014 April 2014
Status Available - November 2012 Available - May 2014 Available - May 2014
Colors Black, Gray, Red, Yellow, White, Blue, Violet Orange, Yellow, White, Black Orange, Yellow, White, Black
Form Factor Candybar Candybar Candybar
Dimension 123.8 x 68.5 x 9.9 mm
(4.87 x 2.7 x 0.39 in)
129.5 x 66.7 x 9.2 mm
(5.1 x 2.63 x 0.36 in)
129.5 x 66.7 x 9.2 mm
(5.1 x 2.63 x 0.36 in)
Weight 160 g (5.64 oz) 134 g (4.73 oz) 134 g (4.73 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE 800 / 1800 / 2600 / 2100/ 900 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 Microsoft Windows Phone 8.1 Microsoft Windows Phone 8.1
Processor Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU Adreno 225 Adreno 305 Adreno 305
RAM 1 GB 512 MB 512 MB
Internal Memory 8 GB storage 8 GB 8 GB
External Memory microSD, up to 32 GB microSD, up to 64 GB microSD, up to 64 GB

display Display

Type AMOLED capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.3 inches 4.5 inches 4.5 inches
Resolution 480 x 800 pixels (217 ppi) 480 x 854 pixels (218 ppi) 480 x 854 pixels (218 ppi)
Screen-to-Body Ratio 62.04% 64.43% 64.43%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 8 MP, 3264x2448 pixels, Carl Zeiss Tessa 5 MP, 2592 х 1944 pixels 5 MP, 2592 х 1944 pixels
Flash LED flash No No
Features Auto focus, Geo-tagging Geo-tagging Geo-tagging
Video Yes Yes, 720p@30fps Yes, 720p@30fps
Front Camera Yes [Similar] No [Similar] No [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42 Mbps
HSUPA, 5.76 Mbps
LTE, Cat3, 50 Mbps UL, 100 Mbps DL
HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v3.1 with A2DP, EDR Yes, v4.0 with A2DP Yes, v4.0 with A2DP
Wi-Fi Wi-Fi 802.11 b/g/n Wi-Fi 802.11 b/g/n 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 Yes, with A-GPS support and GLONASS Yes, with A-GPS support and GLONASS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 8 GB storage, 1 GB RAM 8 GB, 512 MB RAM 8 GB, 512 MB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 64 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 supported NFC not supported NFC not supported

battery Battery

Type Standard battery, Li-Ion Li-Ion Battery Li-Ion Battery
Capacity 1650 mAh 1830 mAh 1830 mAh
Stand by Up to 330 h (2G)
Up to 330 h (3G)
Up to 648 h Up to 600 h
Talk Time Up to 14 h (2G)
Up to 8 h (3G)
Up to 12 h (2G)
Up to 14 h (3G)
Up to 16 h 24 m (2G)
Up to 13 h (3G)