Phone Comparison - Nokia Lumia 820 vs HTC Windows Phone 8X vs Nokia Lumia 635

	Nokia Lumia 820 ✖	HTC Windows Phone 8X ✖	Nokia Lumia 635 ✖

General Info
	Nokia Lumia 820 ✖	HTC Windows Phone 8X ✖	Nokia Lumia 635 ✖


Manufacturer	Nokia	HTC	Nokia
Announced	Expected September 2012	September 2012	April 2014
Status	Available - November 2012	Available - November 2012	Available - May 2014
Colors	Black, Gray, Red, Yellow, White, Blue, Violet	Blue, Black, Yellow, Red	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)	132.3 x 66.2 x 10.1 mm (5.21 x 2.61 x 0.4 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)	130 g (4.59 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 and OS
OS	Microsoft Windows Phone 8	Windows Phone 8	Microsoft Windows Phone 8.1
Processor	Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon	Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon	Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU	Adreno 225	Adreno 225	Adreno 305
RAM	1 GB	1 GB	512 MB
Internal Memory	8 GB storage	16 GB storage	8 GB
External Memory	microSD, up to 32 GB	microSD, up to 32GB	microSD, up to 64 GB

Display
Type	AMOLED capacitive touchscreen	S-LCD2 capacitive touchscreen	IPS LCD capacitive touchscreen
Colors	16M colors	16M colors	16M colors
Size	4.3 inches	4.3 inches	4.5 inches
Resolution	480 x 800 pixels (217 ppi)	720 x 1280 pixels (342 ppi)	480 x 854 pixels (218 ppi)
Screen-to-Body Ratio	62.04%	58.04%	64.43%
Multi-Touch
Multimedia
3.5mm Jack
Radio	No	No	No
Games	Yes + Downloadable	Yes + Downloadable	Yes + Downloadable
Loud Speaker
Camera
Rear Camera	8 MP, 3264x2448 pixels, Carl Zeiss Tessa	8 MP, 3264 x 2448 pixels	5 MP, 2592 х 1944 pixels
Flash	LED flash	28mm wide	No
Features	Auto focus, Geo-tagging	Auto focus, Geo-tagging, Touch Focus	Geo-tagging
Video	Yes	Yes, 1080p@30fps, continuous autofocus, video light	Yes, 720p@30fps
Front Camera	Yes [Similar]	Yes, 2.1 MP, 1080p video [Similar]	No [Similar]
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; HSUPA	HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL
Bluetooth	Yes, v3.1 with A2DP, EDR	Yes, v2.1 with A2DP, EDR	Yes, v4.0 with A2DP
Wi-Fi	Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 a/b/g/n, dual-band	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

User Memory
Internal	8 GB storage, 1 GB RAM	16 GB storage, 1 GB RAM	8 GB, 512 MB RAM
Expandable Storage	microSD, up to 32 GB	microSD, up to 32GB	microSD, up to 64 GB
Sensors
Fingerprint
Proximity Sensor
Accelerometer Sensor
NFC
Battery
Type	Standard battery, Li-Ion	Standard battery, Li-Ion	Li-Ion Battery
Capacity	1650 mAh	1800 mAh	1830 mAh
Stand by	Up to 330 h (2G) Up to 330 h (3G)		Up to 648 h
Talk Time	Up to 14 h (2G) Up to 8 h (3G)		Up to 12 h (2G) Up to 14 h (3G)

Phone Comparison - Nokia Lumia 820 vs HTC Windows Phone 8X vs Nokia Lumia 635

General Info

Hardware and OS

Display

Multimedia

Camera

Connectivity and Data Rate

User Memory

Sensors

Battery

Other Comparison

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