HTC One vs HTC One M8 vs Xiaomi Redmi 3 Pro

General Info

Manufacturer
HTC	HTC	Xiaomi
Announced
February 2013	March 2014	March 2016
Status
Released - March 2013	Available - March 2014	Available - April 2016
Colors
Black, White	Glacial Silver, Gunmetal Gray, Amber Gold	Dark Gray, Silver, Gold
Form Factor
Candybar	Candybar	Candybar
Dimension
137.4 x 68.2 x 9.3 mm (5.41 x 2.69 x 0.37 in)	146.4 x 70.6 x 9.4 mm (5.76 x 2.78 x 0.37 in)	139.3 x 69.6 x 8.5 mm (5.48 x 2.74 x 0.33 in)
Weight
143 g (5.04 oz)	160 g (5.64 oz)	144 g (5.08 oz)
2G Network
GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900	GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA2000 1xEV-DO
3G Network
HSDPA 850 / 2100 HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100 HSDPA 850 / 1700 / 1900 / 2100	HSDPA 850 / 1900 / 2100
4G Network
LTE (market dependent)	LTE 800 / 900 / 1800 / 2600 LTE 700 / 1700 / 2100 LTE 700 / 900 / 1800 / 2100 / 2600 LTE 700 / 850 / 1700 / 1800 / 1900 / 2100 / 2600	LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)
Messaging
SMS, MMS, Push Mail, EMail	SMS, MMS, Push Mail, EMail	SMS, MMS, EMail, IM
Build Features
-	Corning Gorilla Glass 3	- Fingerprint Sensor

OS
Android OS, v4.1.2 (Jelly Bean), upgradable to v4.2.2 (Jelly Bean)	Android OS, v4.4.2 (KitKat)	Android OS, v5.1 (Lollipop)
Processor
Quad-core 1.7 GHz Krait, Qualcomm APQ8064 Snapdragon	Quad-core 2.3 GHz Krait 400, Qualcomm MSM8974AB Snapdragon 801	Quad-core 1.5 GHz Cortex-A53 & quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8939v2 Snapdragon 616
GPU
Adreno 320	Adreno 330	Adreno 405
RAM
2 GB	2 GB	3 GB
Internal Memory
32/64 GB	16/32 GB	32 GB
External Memory
microSD, up to 32 GB	microSD, up to 128 GB	microSD, up to 128 GB (uses SIM 2 slot)

Type
Super LCD3 capacitive touchscreen	Super LCD3 Capacitive Touchscreen	IPS LCD capacitive touchscreen
Colors
16M colors	16M colors	16M colors
Size
4.7 inches	5.0 inches	5.0 inches
Resolution
1080 x 1920 pixels (469 ppi)	1080 x 1920 pixels (441 ppi)	720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio
64.90%	66.55%	70.95%
Multi-Touch

Rear Camera
4 MP UltraPixels, 2688 x 1520 pixels	Dual 4 MP, 2688х1520 pixels	13 MP, 4160 x 3120 pixels
Flash
LED flash	Dual-LED	LED Flash
Features
Auto focus, 1/3' sensor size, simultaneous HD video and image recording, geo-tagging, face and smile detection, OIS	Auto focus, 1/3' Sensor Size, 2µm Pixel Size, Simultaneous HD Video And Image Recording, Geo-tagging, Face And Smile Detection	Phase Detection Autofocus, f/2.0, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama
Video
Yes, 1080p@30fps, stereo sound recording, video stabilization	Yes, 1080p@30fps, 720p@60fps, HDR, Stereo Sound Rec., Video Stabilization	1080p@30fps
Front Camera
Yes, 2.1 MP, 1080p@30fps, HDR	Yes, 5 MP, 1080p@30fps, HDR	5 MP, f/2.2, 1080p@30fps

GPRS
Yes	Yes	Yes
Edge
Yes	Yes	Yes
3G
HSPA+; LTE, Cat3, 50 Mbps UL, 100 Mbps DL	HSDPA, 42 Mbps (21 Mbps - AT&T), HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL	HSPA, LTE, EV-DO Rev.A 3.1 Mbps
Bluetooth
Yes, v4.0 with A2DP	Yes, v4.0 with A2DP	v4.1, A2DP
Wi-Fi
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot	Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA, Wi-Fi hotspot	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB
Yes, microUSB v2.0 (MHL)	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, BDS
Browser
HTML5	HTML5	HTML5