Phone Comparison - HTC Desire 820 vs HTC Desire 620 Dual SIM vs Samsung Galaxy A3 (2016)

general General Info

Manufacturer HTC HTC Samsung
Announced September 2014 December 2014 December 2015
Status Coming Soon - September 2014 Available - December 2014 Coming Soon - December 2015
Price - - Rs. 17,300 ($254.41) [Similarly Priced]
Colors Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tang Blue, Black, Gray, White Various
Form Factor Candybar Candybar Candybar
Dimension 157.7 x 78.7 x 7.7 mm
(6.21 x 3.1 x 0.3 in)
150.1 x 72.7 x 9.6 mm
(5.91 x 2.86 x 0.38 in)
134.5 x 65.2 x 7.3 mm
(5.3 x 2.57 x 0.29 in)
Weight 155 g (5.47 oz) 160 g (5.64 oz) 132 g (4.66 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional)
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 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2600 LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800)
Messaging SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Android OS, v4.4.4 (KitKat) Android OS, v5.1.1 (Lollipop)
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 1.5 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410
GPU Adreno 405 Adreno 306 Adreno 306
RAM 2 GB 1 GB 1.5 GB
Internal Memory 16 GB 8 GB 16 GB
External Memory microSD, up to 128 GB microSD, up to 128 GB microSD, up to 128 GB

display Display

Type LCD Capacitive Touchscreen Capacitive touchscreen Super AMOLED capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.0 inches 4.7 inches
Resolution 720 x 1280 pixels (267 ppi) 720 x 1280 pixels (294 ppi) 720 x 1280 pixels (312 ppi)
Screen-to-Body Ratio 67.20% 63.04% 69.65%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 13 MP, 4160 x 3120 pixels 8 MP, 3264 x 2448 pixels 13 MP, 4128 x 3096 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, Panorama
Video 1080p@30fps, 720p@60fps 1080p@30fps 1080p@30fps
Front Camera 8 MP, 1080p [Similar] 5 MP [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

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, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth v4.0, A2DP v4.0, A2DP, apt-X v4.1, A2DP, EDR, LE
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, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, 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/ BDS (market dependant)
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 8 GB, 1 GB RAM 16 GB, 1.5 GB RAM
Expandable Storage microSD, up to 128 GB microSD, up to 128 GB microSD, up to 128 GB

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 not supported NFC supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery Li-Po Battery Non-removable Li-Ion Battery
Capacity 2600 mAh 2100 mAh 2300 mAh
Stand by Up to 424 h (3G) - -
Talk Time Up to 22 h 24 min (3G) - -