HTC Desire 820 vs Samsung Galaxy A3 Duos vs HTC Desire 820q Dual SIM

General Info

Manufacturer
HTC	Samsung	HTC
Announced
September 2014	October 2014	October 2014
Status
Coming Soon - September 2014	Available - November 2014	Available - October 2014
Price
-	Rs. 14,265 ($209.78) [Similarly Priced]	Rs. 30,500 ($448.53) [Similarly Priced]
Colors
Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tang	Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light B	Santorini White, Tuxedo Gray, Milky-way Gray
Form Factor
Candybar	Candybar	Candybar
Dimension
157.7 x 78.7 x 7.7 mm (6.21 x 3.1 x 0.3 in)	130.1 x 65.5 x 6.9 mm (5.12 x 2.58 x 0.27 in)	157.7 x 78.7 x 7.7 mm (6.21 x 3.1 x 0.3 in)
Weight
155 g (5.47 oz)	110.3 g (3.88.0.11 oz)	155 g (5.47 oz)
2G Network
GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network
HSDPA 850 / 900 / 1900 / 2100 - EMEA version HSDPA 900 / 2100 - Asia version	HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G Network
LTE 900 / 1800 / 2100 / 2600 - EMEA version	LTE	LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600 (Bands 1, 3, 7, 8, 38, 39, 40, 41)
Messaging
SMS, MMS, Push Mail, EMail	SMS, MMS, EMail, IM	SMS, MMS, Push Mail, EMail

OS
Android OS, v4.4.2 (KitKat)	Android OS, v4.4.4 (KitKat)	Android OS, v4.4.2 (KitKat)
Processor
Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53, Qualcomm MSM8939 Snapdragon 615	Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410	Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410
GPU
Adreno 405	Adreno 306	Adreno 306
RAM
2 GB	1 GB	1 GB
Internal Memory
16 GB	16 GB	16 GB
External Memory
microSD, up to 128 GB	No	microSD, up to 128 GB

Type
LCD Capacitive Touchscreen	Super AMOLED capacitive touchscreen	TFT Capacitive Touchscreen, Corning Gorilla Glass 3
Colors
16M colors	16M colors	16M colors
Size
5.5 inches	4.5 inches	5.5 inches
Resolution
720 x 1280 pixels (267 ppi)	540 x 960 pixels (245 ppi)	720 x 1280 pixels (267 ppi)
Screen-to-Body Ratio
67.20%	65.39%	67.20%
Multi-Touch

Rear Camera
13 MP, 4160 x 3120 pixels	8 MP, 3264 x 2448 pixels	13 MP, 4160 x 3120 pixels
Flash
LED flash	LED flash	LED flash
Features
Auto focus, Geo-tagging, Touch Focus, Face Detection, Simultaneous HD Video And Image Recording, HDR	Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama	Auto focus, Geo-tagging, Touch Focus, Face Detection, Simultaneous HD Video And Image Recording, HDR
Video
1080p@30fps, 720p@60fps	-	1080p@30fps, 720p@60fps
Front Camera
8 MP, 1080p	5 MP	8 MP, 1080p

GPRS
Yes	Yes	Yes
Edge
Yes	Yes	Yes
3G
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	HSPA 42.2/5.76 Mbps, LTE
Bluetooth
v4.0, A2DP	v4.0, A2DP, EDR, LE	v4.0, A2DP, apt-X
Wi-Fi
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot	Wi-Fi 802.11 b/g/n, Wi-Fi hotspot	Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot
USB
microUSB v2.0	microUSB v2.0	microUSB v2.0
GPS
Yes, with A-GPS, GLONASS	Yes, with A-GPS, GLONASS	Yes, with A-GPS, GLONASS
Browser
HTML5	HTML5	HTML5