HTC Desire 820 Dual SIM vs HTC Desire 826 Dual SIM vs Samsung Galaxy A8

BASIC INFO
Model No - - Galaxy A8
Status Available. Released 2014, November Available. Released 2015, March Available.
Release Date 2014, September 2015, January 2015, August
Dimension 157.7 x 78.7 x 7.7 mm (6.21 x 3.10 x 0.30 in) 158 x 77.5 x 8 mm (6.22 x 3.05 x 0.31 in) 158 x 76.8 x 5.9 mm (6.22 x 3.02 x 0.23 in)
Weight 155 g (5.47 oz) 183 g (6.46 oz) 151 g
Colors Black, white, Blue, purple, Green White Birch, Blue Lagoon, Marshmallow White, Dark Grey, Purple Fire Pearl White, Midnight Black, Champagne Gold
Body Metrial - - -
W & D Proof - - -
SIM Type Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by) Nano-SIM
Technology GSM / HSPA / LTE GSM / HSPA / LTE GSM / HSPA / LTE
OS Android OS, v4.4.2 (KitKat) Android OS, v4.4.2 (KitKat) Android OS, v5.1.1 (Lollipop), upgradable to v6.0 (Marshmallow)
PROSESSING
Processor Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53 Quad-core 1.7 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53 Quad-core 1.8 GHz Cortex-A53 & quad-core 1.3 GHz Cortex-A53
Chipset Qualcomm MSM8939 Snapdragon 615 Qualcomm MSM8939 Snapdragon 615 Qualcomm MSM8939 Snapdragon 615
GPU Adreno 405 Adreno 405 Adreno 405
MEMORY
RAM 2GB 2GB 2GB
Storage 16GB 16GB 16GB
Card Slot up to 128 GB (dedicated slot) Up to 32 GB Up to 256 GB
DISPLAY
Size 5.5 inches 5.5 inches 5.7 inches
Type Super LCD3 capacitive touchscreen, 16M colors Super LCD2 capacitive touchscreen, 16M colors Super Amoled capacitive touchscreen, 16M colors
Resolation 720 x 1280 pixels 1080 x 1920 pixels 1080 x 1920 pixels
PPI 267 ppi pixel density 401 ppi pixel density 386 ppi pixel density
Multi touch Yes Yes - HTC Sense UI Yes
Protection Corning Gorilla Glass 3, HTC Sense UI 6.0 - Corning Gorilla Glass 4
CAMERA
Primary 13 MP 4160 x 3120 pixels, Autofocus 13 MP, 4160 x 3120 pixels, Autofocus 16 MP
Video 1080p@30fps, optical stabilization, stereo sound rec. 1080p@30fps, 720p@60fps, HDR, stereo sound 1080p@30fps, check quality
Flash Led flash LED flash -
Features Geo-tagging, touch focus, face detection, HDR Geo-tagging, touch focus, face detection, HDR Geo-tagging, touch focus, face detection, panorama, HDR
Selfie Yes, 8 MP 4 MP, 1080p Yes 5 MP
BATTERY
Battery Li-Po Li-Po Li-Ion
Capacity 2600 mAh 2600 mAh 3050 mAh
Removable Non-removable Non-removable Non-removable
StandBy Up to 424 h (3G) Up to 626 h (2G) / Up to 687 h (3G) -
Talk Time Up to 22 h 40 min (3G) Up to 22 h (2G) / Up to 19 h (3G) Up to 17 h (3G)
Music Play - - Up to 51 h
Browsing - - HTML5
Video Playback - - -
F Charging - - -
W Charging - - -
NETWORK
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100 - EMEA, Asia
HSDPA 850 / 900 / 2100 - India
TD-SCDMA
HSDPA 850 / 900 / 1900 / 2100
TD-SCDMA 1900 / 2100 - HK, India
HSDPA 850 / 900 / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500) - Asia, India LTE band 1(2100), 3(1800), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500) - HK, India LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800)
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
BlueTooth v4.0, A2DP, apt-X v4.1, A2DP, apt-X v4.1, A2DP, EDR, LE
USB microUSB v2.0, USB Host microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS/ BDS (market dependant) Yes, with A-GPS, GLONASS/ BDS (market dependant)
NFC Yes No Yes
Audio jeck Yes, 3.5mm Yes, 3.5mm Yes, 3.5mm Jack
OTHERS
Sensors Accelerometer, proximity, compass Accelerometer, proximity, compass Fingerprint, accelerometer, proximity, compass
Radio TBD TBD FM radio, RDS, recording
SARUS - - -
SAREU 0.14 W/kg (head) - -
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