Compare Asus Zenfone 2 ZE551ML 4GB RAM 16GB 1.8Ghz with Asus Zenfone 3 Max ZC520TL with Asus Zenfone 3s Max ZC521TL

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Compare Asus Zenfone 2 ZE551ML 4GB RAM 16GB 1.8Ghz vs Asus Zenfone 3 Max ZC520TL vs Asus Zenfone 3s Max ZC521TL

Summary	76 Score	76 Score	77 Score
Performance	Intel Atom Z3580 (4 GB RAM model)Intel Atom Z3560 (2 GB RAM model) 4 GB RAM Android OS, v5.0	MediaTek MT6737T 3 GB RAM Android v6.0 (Marshmallow)	MediaTek MT6750 3 GB RAM Android v7.0 (Nougat)
Display	5.5 inch 1080 x 1920 pixels 401 PPI Density	5.2 inch 720 x 1280 pixels 267 PPI Density	5.2 inch 720 x 1280 pixels 282 PPI Density
Camera	13 MP (Main) 5 MP (Front)	13 MP (Main) 5 MP (Front)	13 MP (Main) 8 MP (Front)
Battery	3000 mAh Li-Po	4100 mAh Li-Po	5000 mAh Li-Po
Display
Screen Size	5.5 inch	5.2 inch	5.2 inch
Screen Resolution	1080x1920 pixels	HD (720 x 1280 pixels)	HD (720 x 1280 pixels)
Pixel Density	401 PPI	267 PPI	282 PPI
Display Type	IPS capacitive touchscreen, 16M colors	IPS LCD Capacitive Touchscreen, Multi-touch, 2.5D contoured glass	IPS LCD Capacitive Touchscreen, Multi-touch
Gorilla Glass	Yes	Yes	-
Screen Protection	Corning Gorilla Glass 3	Gorilla Glass	-
Chipset
Brand	Asus Mobiles	Asus Mobiles	Asus Mobiles
Chipset	Intel Atom Z3580 (4 GB RAM model)Intel Atom Z3560 (2 GB RAM model)	MediaTek MT6737T	MediaTek MT6750
Processor	Quad-core 1.8 GHz	1.2 Ghz Quad Core	Octa core, 1.5 GHz, Cortex A53
RAM	4 GB RAM	3 GB RAM	3 GB RAM
GPU	PowerVR G6430	Mali-T720 MP2	Mali-T860 MP2
Camera
Rear Camera Resolution	13 MP	13 MP	13 MP
Front Camera Resolution	5 MP	5 MP	8 MP
Video
Camera Features	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging	Autofocus, Touch Focus, Flash	Autofocus, Touch Focus, Flash
General
Operating System	Android	Android	Android
OS Version	Android OS, v5.0	Android v6.0 (Marshmallow)	Android v7.0 (Nougat)
Weight	170 g	148 g	169 g
Dimensions	152.5 x 77.2 x 10.9 mm	149.5 x 73.7 x 8.55mm	149.5 x 73.7 x 8.8 mm
Thickness	10.9mm	8.55mm	8.8mm
Storage
Internal Storage	16 GB	32 GB	32 GB
Card Slot	microSD, up to 64 GB	microSD, Up to 32GB	microSD, Up to 2 TB
Other	16GB storage, microSD card slot	32GB, Expandable upto 32GB	32GB, Expandable upto 2TB
Communication
SIM Card Slots	Single SIM	Dual SIM	Dual SIM
SIM Card Type	Micro-SIM	Micro-SIM	Nano-SIM
Bluetooth	v4.0, A2DP, EDR	v4.0	v4.0, A2DP, EDR
3.5 mm Jack	Yes	Yes	Yes
NFC	Yes	No	No
Connectivity
VoLTE
4G	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 1800(band 3)	TD-LTE 2300(band 40) FD-LTE 1800(band 3)
3G	HSDPA 850 / 900 / 1900 / 2100	UMTS 1900 / 2100 / 850 / 900 MHz	UMTS 1900 / 2100 / 850 / 900 MHz
2G	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 1800 / 1900 / 850 / 900 MHz	GSM 1800 / 1900 / 850 / 900 MHz
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot	Wi-Fi 802.11, b/g/n	Wi-Fi 802.11, b/g/n
GPS	Yes, with A-GPS, GLONASS	A-GPS	A-GPS, GLONASS, BDS
GPRS
EDGE
Radio
Battery
Battery Capacity	3000 mAh	4100 mAh	5000 mAh
Battery Type	Li-Po	Li-Po	Li-Po
Standby Time		Up to 30 days	Up to 816 h (3G)
Talk Time		Up to 20 hours (3	Up to 28 h (3G)
Other Features
Fingerprint Scanner
Waterproof
Sensors	Accelerometer gyro proximity compass	Accelerator E-Compass Hall sensor Ambient light sensor	Light sensor Proximity sensor Accelerometer
Messaging	SMS(threaded view), MMS, Email, Push Email, IM		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