HTC Windows Phone 8X vs HTC One M8 vs Microsoft Lumia 640 XL

General Info

Manufacturer
HTC	HTC	Microsoft
Announced
September 2012	March 2014	March 2015
Status
Available - November 2012	Available - March 2014	Available - April 2015
Price
-	-	Rs. 12,999 ($191.16) [Similarly Priced]
Colors
Blue, Black, Yellow, Red	Glacial Silver, Gunmetal Gray, Amber Gold	Matte cyan, Orange, Black, Matte white, Glossy white
Form Factor
Candybar	Candybar	Candybar
Dimension
132.3 x 66.2 x 10.1 mm (5.21 x 2.61 x 0.4 in)	146.4 x 70.6 x 9.4 mm (5.76 x 2.78 x 0.37 in)	157.9 x 81.5 x 9 mm (6.22 x 3.21 x 0.35 in)
Weight
130 g (4.59 oz)	160 g (5.64 oz)	171 g (6.03 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 / 1900 / 2100 HSDPA 850 / 1700 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G Network
-	LTE 800 / 900 / 1800 / 2600 LTE 700 / 1700 / 2100 LTE 700 / 900 / 1800 / 2100 / 2600 LTE 700 / 850 / 1700 / 1800 / 1900 / 2100 / 2600	-
Messaging
SMS, MMS, Push Mail, EMail, IM	SMS, MMS, Push Mail, EMail	SMS, MMS, Push Mail, EMail, IM
Build Features
-	Corning Gorilla Glass 3	-

OS
Windows Phone 8	Android OS, v4.4.2 (KitKat)	Microsoft Windows Phone 8.1 with Lumia Denim
Processor
Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon	Quad-core 2.3 GHz Krait 400, Qualcomm MSM8974AB Snapdragon 801	Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU
Adreno 225	Adreno 330	Adreno 305
RAM
1 GB	2 GB	1 GB
Internal Memory
16 GB storage	16/32 GB	8 GB
External Memory
microSD, up to 32GB	microSD, up to 128 GB	microSD, up to 128 GB

Type
S-LCD2 capacitive touchscreen	Super LCD3 Capacitive Touchscreen	IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors
16M colors	16M colors	16M colors
Size
4.3 inches	5.0 inches	5.7 inches
Resolution
720 x 1280 pixels (342 ppi)	1080 x 1920 pixels (441 ppi)	720 x 1280 pixels (259 ppi)
Screen-to-Body Ratio
58.04%	66.55%	68.88%
Multi-Touch

Rear Camera
8 MP, 3264 x 2448 pixels	Dual 4 MP, 2688х1520 pixels	13 MP, 4128 x 3096 pixels
Flash
28mm wide	Dual-LED	LED flash
Features
Auto focus, Geo-tagging, Touch Focus	Auto focus, 1/3' Sensor Size, 2µm Pixel Size, Simultaneous HD Video And Image Recording, Geo-tagging, Face And Smile Detection	Auto focus, Carl Zeiss Optics, 1/3'' Sensor Size
Video
Yes, 1080p@30fps, continuous autofocus, video light	Yes, 1080p@30fps, 720p@60fps, HDR, Stereo Sound Rec., Video Stabilization	1080p@30fps
Front Camera
Yes, 2.1 MP, 1080p video	Yes, 5 MP, 1080p@30fps, HDR	5 MP, 1080p

GPRS
Yes	Yes	Yes
Edge
Yes	Yes	Yes
3G
HSDPA; HSUPA	HSDPA, 42 Mbps (21 Mbps - AT&T), HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL	HSPA 42.2/5.76 Mbps
Bluetooth
Yes, v2.1 with A2DP, EDR	Yes, v4.0 with A2DP	v4.0, A2DP
Wi-Fi
Wi-Fi 802.11 a/b/g/n, dual-band	Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA, Wi-Fi hotspot	Wi-Fi 802.11 b/g/n, DLNA, hotspot
USB
Yes, microUSB v2.0	Yes, microUSB v2.0 (MHL), USB On-the-go, USB Host	microUSB v2.0
GPS
Yes, with A-GPS support and GLONASS	Yes, with A-GPS support and GLONASS	Yes, with A-GPS, GLONASS, Beidou
Browser
HTML5	HTML5	HTML5