Phone Comparison - Asus Zenfone Zoom ZX550 vs Asus Zenfone Zoom ZX551ML vs Asus Zenfone 3 Ultra

general General Info

Manufacturer Asus Asus Asus
Announced January 2015 September 2015 May 2016
Status Coming Soon - Q2 2015 Available - January 2016 Available - June 2016
Price Rs. 37,999 ($558.81) [Similarly Priced] Rs. 37,999 ($558.81) [Similarly Priced] Rs. 49,999 ($735.28) [Similarly Priced]
Colors Meteorite black, Glacier white Pure Black, Ceramic White Grey, Silver, Gold
Form Factor Candybar Candybar Candybar
Dimension 158.9 x 78.8 x 12 mm
(6.26 x 3.1 x 0.47 in)
158.9 x 78.8 x 12 mm
(6.26 x 3.1 x 0.47 in)
186.4 x 93.9 x 6.8 mm
(7.34 x 3.7 x 0.27 in)
Weight 185 g (6.53 oz) 185 g (6.53 oz) 233 g (8.22 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
TD-SCDMA
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network LTE 700/800/850/900/1700/1800/1900/2100/2600
(Bands 1, 2, 3, 4, 5, 7, 8, 9, 17, 18, 19, 20, 28, 29)
LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 9(1800), 18(800), 19(800), 28(700) LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM
Build Features - - - Fingerprint Sensor
- Metal Body

hardware Hardware and OS

OS Android OS, v5.0 (Lollipop) Android OS, v5.0 (Lollipop) Android OS, v6.0.1 (Marshmallow) with ZEN UI 3.0
Processor Quad-core 2.3 GHz, Intel Atom Z3580 Quad-core 2.5 GHz, Intel Atom Z3590 Quad-core 1.2 GHz Cortex-A53 & Quad-core 1.8 GHz Cortex-A72, Qualcomm MSM8976 Snapdragon 652
GPU PowerVR G6430 PowerVR G6430 Adreno 510
RAM 4 GB 4 GB 3/4 GB
Internal Memory 32/64/128 GB 128 GB 32/64/128 GB
External Memory microSD, up to 64 GB microSD, up to 128 GB microSD, up to 128 GB

display Display

Type IPS Capacitive Touchscreen, Corning Gorilla Glass 3 IPS Capacitive Touchscreen, Corning Gorilla Glass 4 IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.5 inches 6.8 inches
Resolution 1080 x 1920 pixels (403 ppi) 1080 x 1920 pixels (401 ppi) 1080 x 1920 pixels (324 ppi)
Screen-to-Body Ratio 65.79% 66.44% 72.81%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No No Stereo FM Radio with Recording
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels 23 MP
Flash Dual-tone Flash Dual-LED (Dual Tone) Dual-LED (Dual Tone)
Features Optical Image Stabilization,Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Laser Autofocus, Optical Image Stabilization, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Phase Detection Autofocus, Laser AutoFocus, OIS, EIS, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR
Video 1080p@30fps 1080p@30fps 1080p@30fps, 720p@120fps
Front Camera 5 MP [Similar] 5 MP [Similar] 8 MP, 1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4+ 250/50 Mbps HSPA, LTE
Bluetooth v4.0, A2DP, EDR v4.0, A2DP, EDR v4.1, A2DP, LE
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
USB microUSB v2.0, USB Host microUSB v2.0 microUSB v2.0, USB On-The-Go
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS, BDS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 32/64/128 GB, 4 GB RAM 128 GB, 4 GB RAM 32/64/128 GB, 3/4 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 128 GB microSD, up to 128 GB
USB OTG Supported - Supported

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC supported NFC supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery Non-removable Li-Po Battery Non-removable Li-Po battery
Capacity 3000 mAh 3000 mAh 4600 mAh
Stand by - - -
Talk Time - - -