Compare Asus Zenfone 2 ZE551ML (2GB RAM, 16GB, 2.3Ghz) with Asus Zenfone 2 ZE551ML 4GB RAM 32GB 1.8Ghz with Asus Zenfone 3 ZE552KL

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Compare Asus Zenfone 2 ZE551ML (2GB RAM, 16GB, 2.3Ghz) vs Asus Zenfone 2 ZE551ML 4GB RAM 32GB 1.8Ghz vs Asus Zenfone 3 ZE552KL

Summary	75 Score	76 Score	78 Score
Performance	Intel Atom Z3580 2 GB RAM Android v5.0 (Lollipop)	Intel Atom Z3580 (4 GB RAM model)Intel Atom Z3560 (2 GB RAM model) 4 GB RAM Android OS, v5.0	Qualcomm Snapdragon 625 MSM8953 4 GB RAM Android v6.0 (Marshmallow)
Display	5.5 inch 1080 x 1920 pixels 401 PPI Density	5.5 inch 1080 x 1920 pixels 401 PPI Density	5.5 inch 1080 x 1920 pixels 401 PPI Density
Camera	13 MP (Main) 5 MP (Front)	13 MP (Main) 5 MP (Front)	16 MP (Main) 8 MP (Front) 4K Video Recording
Battery	3000 mAh Li-Po	3000 mAh Li-Po	3000 mAh Li-ion
Display
Screen Size	5.5 inch	5.5 inch	5.5 inch
Screen Resolution	Full HD (1080 x 1920 pixels)	1080x1920 pixels	Full HD (1080 x 1920 pixels)
Pixel Density	401 PPI	401 PPI	401 PPI
Display Type	IPS LCD Capacitive Touchscreen, Multi-touch	IPS capacitive touchscreen, 16M colors	IPS LCD Capacitive Touchscreen, Multi-touch
Gorilla Glass	-	Yes	Yes
Screen Protection	-	Corning Gorilla Glass 3	Corning Gorilla Glass 3
Chipset
Brand	Asus Mobiles	Asus Mobiles	Asus Mobiles
Chipset	Intel Atom Z3580	Intel Atom Z3580 (4 GB RAM model)Intel Atom Z3560 (2 GB RAM model)	Qualcomm Snapdragon 625 MSM8953
Processor	Quad core, 2.3 GHz	Quad-core 1.8 GHz (4 GB RAM model)	Octa core, 2 GHz, Cortex A53
RAM	2 GB RAM	4 GB RAM	4 GB RAM
GPU	PowerVR G6430	PowerVR G6430	Adreno 506
Camera
Rear Camera Resolution	13 MP	13 MP	16 MP
Front Camera Resolution	5 MP	5 MP	8 MP
Video			4K Video Recording
Camera Features	Autofocus, Touch Focus, Flash	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging
General
Operating System	Android	Android	Android
OS Version	Android v5.0 (Lollipop)	Android OS, v5.0	Android v6.0 (Marshmallow)
Weight	170 g	170 g	155 g
Dimensions	152.5 x 77.2 x 10.9 mm	152.5 x 77.2 x 10.9 mm	152.5 x 77.3 x 7.6 mm
Thickness	10.9mm	10.9mm	7.6mm
Storage
Internal Storage	16 GB	32 GB	64 GB
Card Slot	microSD, Up to 64 GB	microSD, up to 64 G	microSD, Up to 256 G
Other	16GB storage, microSD card slot	32GB storage, microSD card slot	64GB storage, microSD card slot
Communication
SIM Card Slots	Dual SIM	Single SIM	Dual SIM
SIM Card Type	Micro-SIM	Micro-SIM	Nano-SIM
Bluetooth	v4.0	v4.0, A2DP, EDR	v4.2
3.5 mm Jack	Yes	Yes	Yes
NFC		Yes	No
Connectivity
VoLTE
4G	TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) FD-LTE 2100(band 1) / 1800(band 3)	LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 28(700) - Taiwan	TD-LTE 2300(band 40) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)
3G	UMTS 1900 / 2100 / 850 / 900 MHz	HSDPA 850 / 900 / 1900 / 2100	UMTS 2100 / 850 / 900 MHz
2G	GSM 1800 / 1900 / 850 / 900 MHz	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 1800 / 1900 / 850 / 900 MHz
Wi-Fi	Wi-Fi 802.11, a/ac/b/g/n	Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot	Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
GPS	with A-GPS, Glonass	Yes, with A-GPS, GLONASS	with A-GPS, Glonass
GPRS
EDGE
Radio
Battery
Battery Capacity	3000 mAh	3000 mAh	3000 mAh
Battery Type	Li-Po	Li-Po	Li-ion
Standby Time
Talk Time
Other Features
Fingerprint Scanner
Waterproof
Sensors	Light sensor Proximity sensor Accelerometer Compass Gyroscope	Accelerometer gyro proximity compass	Light sensor Proximity sensor Accelerometer Compass Gyroscope
Messaging		SMS(threaded view), MMS, Email, Push Email, IM
Java		No
Other		Fast battery charging: 60% in 40 min , 5GB free lifetime ASUS WebStorage , MP3/WAV/eAAC+ player , MP4/H.264 player , Document viewer , Photo/video editor