Asus Zenfone Selfie ZD551KL 16GB vs Honor 6x vs HTC Desire 820

BASIC INFO
Model No Zenfone Selfie ZD551KL 16GB - 2014, September
Status Available Available. Released 2014, December Available. Released 2014, November
Release Date 2015, August 2014, December 2014, August
Dimension 156.5 x 77.2 x 10.8 mm (6.16 x 3.04 x 0.43 in) 150.5 x 75.7 x 7.5 mm (5.93 x 2.98 x 0.30 in) 157.7 x 78.7 x 7.7 mm (6.21 x 3.10 x 0.30 in)
Weight 170 g (6.00 oz) 165 g (5.82 oz) 155 g (5.47 oz)
Colors Pure White, Chic Pink, Aqua Blue Black, White Marble White, Tuxedo Grey, Santorini White, Milky-way Grey, Tangerine White, Saffron Grey, Flamingo Grey, Blue Misty, Monarch Orange
Body Metrial - - -
W & D Proof - - -
SIM Type Dual SIM (Micro-SIM, dual stand-by) - Nano-SIM
Technology GSM / HSPA / LTE - GSM / HSPA / LTE
OS Android OS, v5.0 (Lollipop), upgradable to v6.0 (Marshmallow) Android OS, v4.4.2 (KitKat) Android OS, v4.4.2 (KitKat)
PROSESSING
Processor Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) HiSilicon Kirin 925, Quad-core Cortex-A15 & quad-core Cortex-A7, Mali-T628 MP4 Quad-core 1.5 GHz Cortex-A53 & quad-core 1.0 GHz Cortex-A53
Chipset Qualcomm MSM8939 Snapdragon 615 - Qualcomm MSM8939 Snapdragon 615
GPU Adreno 405 - Adreno 405
MEMORY
RAM 2/3 GB - 2GB
Storage 16/32 GB - 16GB
Card Slot microSD, up to 256 GB. 32 GB Internal Storage, 3 GB RAM and microSD, up to 64 GB up to 128 GB (dedicated slot)
DISPLAY
Size 5.5 Inches 1080 x 1920 pixels, 5.5 inches (~401 ppi pixel density) 5.5 inches
Type IPS capacitive touchscreen, 16M colors IPS+ LCD capacitive touchscreen, 16M colors Super LCD3 capacitive touchscreen, 16M colors
Resolation 1080 x 1920 pixels - 720 x 1280 pixels
PPI 403 ppi pixel - 267 ppi pixel density
Multi touch Yes - Yes
Protection Corning Gorilla Glass 4, oleophobic coating - Corning Gorilla Glass 3, HTC Sense UI 6.0
CAMERA
Primary 13 MP Dual 8 MP, 3264 x 2448 pixels, autofocus, LED flash 13 MP 4160 x 3120 pixels, Autofocus
Video 1080p@30fps Yes, 1080p@30fps, video stabilization Yes, 720p@30fps
Flash LED flash - Led flash
Features 1/3 - Geo-tagging, touch focus, face detection, HDR
Selfie 13MP 8 MP, 1080p@30fps Yes, 8 MP
BATTERY
Battery Li-Po Non-removable Li-Po 3600 mAh battery Li-Po
Capacity 3000 mAh - 2600 mAh
Removable Removable - Non-removable
StandBy - - Up to 424 h (3G)
Talk Time - - Up to 22 h 24 min (3G)
Music Play - - -
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 HSDPA 850 / 900 / 1900 / 2100 - PE-UL00, HSDPA 850 / 900 / 1900 / 2100 / TD-SCDMA 1900 / 2000 - PE-T HSDPA 850 / 900 / 1900 / 2100 - EMEA, Asia
HSDPA 850 / 900 / 2100 - Europe
TD-SCDMA - Asia
4G Network LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800) - Global LTE 1800 / 2100 / TD-LTE 2500 - PE-UL00, LTE 1800 / 2100 / 2600 / TD-LTE 1900 / 2300 / 2500 / 2600 - PE-TL10 LTE band 3(1800), 7(2600), 8(900), 20(800) - Europe
LTE band 1(2100), 3(1800), 7(2600), 8(900) - EMEA
LTE band 1(2100), 3(1800), 7(2600), 8(900), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Asia
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 a/b/g/n/ac, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot
BlueTooth v4.0, A2DP, EDR Yes, v2.1 with A2DP, EDR v4.0, A2DP, apt-X
USB microUSB v2.0, USB Host Yes, microUSB v2.0, USB Host microUSB v2.0, USB Host
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS support and GLONASS Yes, with A-GPS, GLONASS
NFC - - Yes (optional)
Audio jeck 3.5mm jack - Yes, 3.5mm
OTHERS
Sensors Accelerometer, gyro, proximity, compass - Accelerometer, proximity, compass
Radio FM radio, RDS Stereo FM radio FM radio
SARUS - - -
SAREU - - -
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