Phone Comparison - HTC One M8 vs HTC Desire 820 vs HTC Desire 828 dual sim

general General Info

Manufacturer HTC HTC HTC
Announced March 2014 September 2014 November 2015
Status Available - March 2014 Coming Soon - September 2014 Coming Soon - November 2015
Price - - Rs. 16,445 ($241.84) [Similarly Priced]
Colors Glacial Silver, Gunmetal Gray, Amber Gold Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tang White
Form Factor Candybar Candybar Candybar
Dimension 146.4 x 70.6 x 9.4 mm
(5.76 x 2.78 x 0.37 in)
157.7 x 78.7 x 7.7 mm
(6.21 x 3.1 x 0.3 in)
157.7 x 78.9 x 7.9 mm
(6.21 x 3.11 x 0.31 in)
Weight 160 g (5.64 oz) 155 g (5.47 oz) -
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA
3G Network HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 1900 / 2100
HSDPA 850 / 1700 / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100 - EMEA version
HSDPA 900 / 2100 - Asia version
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
LTE 900 / 1800 / 2100 / 2600 - EMEA version LTE
Messaging SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail
Build Features Corning Gorilla Glass 3 - -

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Android OS, v4.4.2 (KitKat) Android OS, v5.1 (Lollipop)
Processor Quad-core 2.3 GHz Krait 400, Qualcomm MSM8974AB Snapdragon 801 Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615 Octa-core 1.5 GHz Cortex-A53, Mediatek MT6753
GPU Adreno 330 Adreno 405 Mali-T720MP3
RAM 2 GB 2 GB 2 GB
Internal Memory 16/32 GB 16 GB 16 GB
External Memory microSD, up to 128 GB microSD, up to 128 GB microSD, up to 200 GB

display Display

Type Super LCD3 Capacitive Touchscreen LCD Capacitive Touchscreen Capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 5.5 inches 5.5 inches
Resolution 1080 x 1920 pixels (441 ppi) 720 x 1280 pixels (267 ppi) 1080 x 1920 pixels (401 ppi)
Screen-to-Body Ratio 66.55% 67.20% 66.86%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera Dual 4 MP, 2688Ñ…1520 pixels 13 MP, 4160 x 3120 pixels 13 MP, 4160 x 3120 pixels
Flash Dual-LED LED flash optical image stabil
Features Auto focus, 1/3' Sensor Size, 2µm Pixel Size, Simultaneous HD Video And Image Recording, Geo-tagging, Face And Smile Detection Auto focus, Geo-tagging, Touch Focus, Face Detection, Simultaneous HD Video And Image Recording, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama
Video Yes, 1080p@30fps, 720p@60fps, HDR, Stereo Sound Rec., Video Stabilization 1080p@30fps, 720p@60fps 1080p@30fps
Front Camera Yes, 5 MP, 1080p@30fps, HDR [Similar] 8 MP, 1080p [Similar] 4 MP, 1080p (1/3' sensor size, 2µm pixel [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42 Mbps (21 Mbps - AT&T), HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth Yes, v4.0 with A2DP v4.0, A2DP Yes
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot
USB Yes, microUSB v2.0 (MHL), USB On-the-go, USB Host microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS/ Beidou (market dependant)
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16/32 GB, 2 GB RAM 16 GB, 2 GB RAM 16 GB, 2 GB RAM
Expandable Storage microSD, up to 128 GB microSD, up to 128 GB microSD, up to 200 GB
USB OTG Supported - -

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 Non-removable Li-Po Battery Non-removable Li-Po Battery Li-Ion Battery
Capacity 2600 mAh 2600 mAh 2800 mAh
Stand by Up to 271 h (2G)
Up to 496 h (3G)
Up to 424 h (3G) -
Talk Time Up to 14 h (2G)
Up to 20 h (3G)
Up to 22 h 24 min (3G) -