HTC 620 Dual SIM vs HTC Desire 626G Plus Dual SIM vs HTC Desire 820s Dual SIM

BASIC INFO
Model No - - -
Status Available. Released 2014, December Discontinued Available. Released 2015, March
Release Date 2014, November 2015, April 2015, March
Dimension - 146.90 x 70.90 x 8.10 157.7 x 78.7 x 7.7 mm (6.21 x 3.10 x 0.30 in)
Weight - 138 g (4.87 oz) 155 g (5.47 oz)
Colors Black, White Various Marble White, Milkyway Gray, Monarch Orange, Santorini White, Tuxedo Gray
Body Metrial - - -
W & D Proof - - -
SIM Type - - Dual SIM (Nano-SIM, dual stand-by)
Technology - - GSM / HSPA / LTE
OS Android OS, v4.4.2 (KitKat) Android OS, v5.0.2 (Lollipop) Android OS, v4.4.2 (KitKat)
PROSESSING
Processor Quad-core 1.2 GHz Cortex-A7 Octa-core 1.7 GHz Cortex-A53 Octa-core 1.7 GHz Cortex-A53
Chipset - - Mediatek MT6752
GPU - - Mali-T760MP2
MEMORY
RAM - - 2GB
Storage - - 16GB
Card Slot 8 GB storage, 1 GB RAM, microSD, up to 64GB 8GB Storage,1gB RAM, microSD, up to 32 GB up to 32 GB (dedicated slot)
DISPLAY
Size 720 x 1280 pixels, 5 inche 720 x 1280 pixels, 5 inches (~294 ppi pixel density) 5.5 inches
Type FWVGA capacitive touchscreen, 16M colors capacitive touchscreen, 16M colors Super LCD3 capacitive touchscreen, 16M colors
Resolation - - 720 x 1280 pixels
PPI - - 267 ppi pixel density
Multi touch - - Yes, HTC Sense UI 6.0
Protection - - -
CAMERA
Primary 8 MP, 3264 x 2448 pixels, autofocus, LED flash 13 MP, 4160 x 3120 pixels, autofocus, LED flash 13 MP 4160 x 3120 pixels, Autofocus
Video 1080p@30fps 1080p@30fps, 720p@60fps, HDR, stereo sound 1080p@30fps, optical stabilization, stereo sound rec.
Flash - - Led flash
Features - - Geo-tagging, touch focus, face detection, HDR, panorama
Selfie Yes, 5 MP 5 MP Yes, 8 MP
BATTERY
Battery Standard Li-Ion 2100 mAh battery Standard Li-Ion 2000 mAh removeable battery Li-Po
Capacity - - 2600 mAh
Removable - - Non-removable
StandBy - - mAh battery Stand-by
Talk Time - - Up to 12 h 10 min (3G)
Music Play - - -
Browsing - - -
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 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
TD-SCDMA
4G Network LTE 900 / 1800 / 2100 / 2600 TD-LTE 1900 / 2300 / 2600 LTE 700 / 850 / 900 / 1800 / 2100 / 2600 (Bands 1, 3, 5, 7, 8, 28 LTE band 1(2100), 3(1800), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
Speed - - HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 a/ac/b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/ac/b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, hotspot
BlueTooth Yes, v4.0 with A2DP Yes, v4.0 with apt-x v4.0, A2DP
USB Yes, microUSB v2.0 (MHL) Yes, microUSB v2.0 (MHL) microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS Yes, with A-GPS, GLONASS
NFC - - No
Audio jeck - - Yes, 3.5mm
OTHERS
Sensors - - Accelerometer, proximity, compass
Radio TBD TBD TBD
SARUS - - -
SAREU - - -
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