HTC Desire 820s Dual SIM vs HTC Desire 828 Dual Sim vs HTC One M9s

BASIC INFO
Model No - - -
Status Available. Released 2015, March Discontinued Available. Released 2015, November
Release Date 2015, March Available. Released 2015, November 2015, November
Dimension 157.7 x 78.7 x 7.7 mm (6.21 x 3.10 x 0.30 in) 157.7 x 78.9 x 7.9 mm (6.21 x 3.11 x 0.31 in) 144.6 x 69.7 x 9.6 mm (5.69 x 2.74 x 0.38 in)
Weight 155 g (5.47 oz) 150 g 158 g (5.57 oz)
Colors Marble White, Milkyway Gray, Monarch Orange, Santorini White, Tuxedo Gray White Gunmetal Gray, Glacial Silver, Amber Gold
Body Metrial - - -
W & D Proof - - -
SIM Type Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by) -
Technology GSM / HSPA / LTE GSM / HSPA / LTE -
OS Android OS, v4.4.2 (KitKat) Android OS, v5.1 (Lollipop) Android OS, v5.1(Lollypop)
PROSESSING
Processor Octa-core 1.7 GHz Cortex-A53 Octa-core 1.5 GHz Cortex-A53 Octa-core 2.2 GHz Cortex, Mediatek MT6795T, PowerVR G6200
Chipset Mediatek MT6752 Mediatek MT6753 -
GPU Mali-T760MP2 Mali-T720MP3 -
MEMORY
RAM 2GB 2GB -
Storage 16GB 16GB -
Card Slot up to 32 GB (dedicated slot) up to 200 GB (dedicated slot) 16GB storage, 2GB RAM, microSD, up to 128 GB
DISPLAY
Size 5.5 inches 5.5 inches 1920 x 1080 pixels 5 inches with 490 ppi pixel density
Type Super LCD3 capacitive touchscreen, 16M colors Capacitive touchscreen - HTC Sense 6.0 UI 16M colors Super LCD3 capacitive touchscreen, 16M colors
Resolation 720 x 1280 pixels 1080 x 1920 pixels -
PPI 267 ppi pixel density 401 ppi pixel density -
Multi touch Yes, HTC Sense UI 6.0 Yes, HTC Sense 6.0 UI -
Protection - - -
CAMERA
Primary 13 MP 4160 x 3120 pixels, Autofocus 13 MP, 4160 x 3120 pixels, autofocus 13 MP, 4128 x 3096 pixels, optical image stabilization, autofocus, dual-LED (dual tone) flash
Video 1080p@30fps, optical stabilization, stereo sound rec. 1080p@30fps, 720p@60fps, HDR, stereo sound Yes, 1080p@30fps
Flash Led flash Led flash -
Features Geo-tagging, touch focus, face detection, HDR, panorama Geo-tagging, touch focus, face detection, HDR, panorama -
Selfie Yes, 8 MP 4 MP, f/2.0, 27mm, 1/3 Yes, 4 MP, 1080p@30fps, HDR
BATTERY
Battery Li-Po Li-Ion Non-removable Li-Po 2840 mAh battery
Capacity 2600 mAh 2800 mAh -
Removable Non-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
3G Network HSDPA 850 / 900 / 1900 / 2100
TD-SCDMA
HSDPA 850 / 900 / 1900 / 2100
TD-SCDMA
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) LTE LTE 700 / 850 / 1700 / 1800 / 1900 / 2100 / 2600
Speed HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps -
5G - - -
CONECTIVY
WALAN Wi-Fi 802.11 b/g/n, hotspot Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot
BlueTooth v4.0, A2DP Yes, v4.0 with apt-x Yes, v3.0 with A2DP,
USB microUSB v2.0 microUSB v2.0 micro USB v 2.1 go on the go
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS/ BDS (market dependant) Yes, with A-GPS support
NFC No No -
Audio jeck Yes, 3.5mm Yes, 3.5mm -
OTHERS
Sensors Accelerometer, proximity, compass Accelerometer, proximity, compass -
Radio TBD FM radio FM radio with RDS
SARUS - - -
SAREU - - -
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