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Asus Zenfone 2 (ZE551ML 32GB) vs Asus Zenfone 2 (ZE550ML)

Side by side comparison between Asus Zenfone 2 (ZE551ML 32GB) vs Asus Zenfone 2 (ZE550ML) phones, differences, pros, cons and full specifications. What's the better?

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Compare Asus Zenfone 2 X Asus Zenfone 2 (ZE551ML 32GB) 06Points
5.5"
IPS

1080x1920

13
MP

5mp

4GB
RAM

Quad-core

3000
mAh

(Non removable)

vs
00Point Asus Zenfone 2 (ZE550ML) Compare Asus Zenfone 2 X
5.5"
IPS

720x1280

13
MP

5mp

2GB
RAM

Quad-core

3000
mAh

(Non removable)

What's the better phone? Asus Zenfone 2 (ZE551ML 32GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!


36 Common items in both devices
Until 64GB microSD, microSDXC
170 grams (5.95 ounces)
10.9 millimeters (0.43 inches)
TFT IPS LCD
16 million
5.5"
(back) 13MP
+29 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences Clear highlight

📱 Model features

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
ModelZenfone 2 (ZE551ML 32GB)Zenfone 2 (ZE550ML)
Other model namesAsus Zenfone 2 ZE551ML Dual-sim (32GB + 4GB RAM)Asus Zenfone 2 ZE550ML Dual-sim
Country or region availablefeature not registeredfeature not registered
BrandAsusAsus
Release date3/1/20153/1/2015
Depth10.9 millimeters (0.43 inches)10.9 millimeters (0.43 inches)
Size (width x height)77.2 x 152.5 millimeters (3.04 x 6 in)77.2 x 152.5 millimeters (3.04 x 6 in)
Weight170 grams (5.95 ounces)170 grams (5.95 ounces)
Build, materialsfeature not registeredfeature not registered
Protection against water and othersNot supportedNot supported

📲 Display

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
Display typeTFT IPS LCDTFT IPS LCD
Screen size5.5" inches5.5" inches
Screen-to-body ratio~70.8% (screen-to-body ratio)~70.8% (screen-to-body ratio)
Display resolution1080x1920 pixels720x1280 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)401 PPI267 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Gorilla Glass 3
Refresh ratefeature not registeredfeature not registered
Display featuresfeature not registeredfeature not registered

🤖 Operating System

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
System versionAndroid 5.0 LollipopAndroid 5.0 Lollipop
Firmware updateAndroid 6.0 MarshmallowAndroid 6.0 Marshmallow
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
Chipset64bit: Intel Atom Z358064bit: Intel Atom Z3560
CPUQuad-core, 1 processor:
4x 2.3GHz Intel Silvermont (Quad-core)
Quad-core, 1 processor:
4x 1.8GHz Intel Silvermont (Quad-core)
GPU graphical controllerPowerVR G6430 MP4PowerVR G6430 MP4
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
RAM memory4GB LPDDR32GB LPDDR3
Internal storage32GB (28GB available)16GB (12GB available)
External storageUntil 64GB microSD, microSDXC
(dedicated slot)
Until 64GB microSD, microSDXC
(dedicated slot)

📶 Mobile networks

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Dual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
micro-SIM (3FF)
2 slots (Dual-SIM)
micro-SIM (3FF)
Maximum Download / Upload150/50 Mbps150/50 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100UMTS 850/900/1900/2100
Primary 4G networkLTE Cat4 800/850/900/1700/1800/1900/2100/2600 Bands (1,2,3,4,5,7,8,20) - USA: 700/800/850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8,17,20)LTE Cat4 700/800/850/900/1700/1800/1900/2100/2600 (Band 1,2,3,4,5,7,8,17,20) - Taiwan: 700/850/900/1700/1900/2100/2600 (Bands 3,4,5,7,8,12,28)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGEGPRS, EDGE

📷 Camera

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
Back camera (main camera)13 megapixels13 megapixels
Main camera resolution4128x3096 pixels4128x3096 pixels
Video recording (primary)Full HD (1920x1080) 30 fpsFull HD (1920x1080) 30 fps
FlashDual-LED flashDual-LED flash
Focal aperturef/2.0 (aperture)f/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
AutofocusAutofocusAutofocus
Touch focusSupportedSupported
Image stabilizationfeature not registeredfeature not registered
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo only main cameraHDR photo only main camera
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
Front camera (secondary)5 megapixels5 megapixels
Front camera resolution2560x1920 pixels2560x1920 pixels
Video recording (secondary)HD (1280x720)HD (1280x720)
Front flashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered

🔉 Sound and multimedia

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
LoudspeakerSupportedSupported
Active noise cancellationNot supportedNot supported
RadioFM (RDS)FM
TVNot supportedNot supported
Video formatsMP4, H.264, H.263MP4, H.264, H.263
Audio formatsMP3, WAV, eAAC+MP3, WAV, eAAC+

🔌 Connectivity

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
USBMicroUSB 2.0MicroUSB 2.0
Audio output3.5mm jack3.5mm jack
TV outputNot supportedNot supported
Bluetooth4.0 + A2DP4.0 + A2DP
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz)
WiFi Direct, hotspot
802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz)
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASSA-GPS, GeoTagging, GLONASS
NFCSupportedNot supported
Infrared portNot supportedNot supported

🧭 Sensors

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
SensorsAccelerometer
Ambient light sensor
Compass
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity3000 mAh3000 mAh
Charger, wattsWired chargingWired charging
Inductive / wireless chargingfeature not registeredfeature not registered
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
Call controlVoice dialing, Voice recorderVoice dialing, Voice recorder
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Black, Gold, Gray, Red, White
• Asus ZenUI
• Fast battery charging: 60% in 40min
• 5GB free ASUS WebStorage
• OpenGL 3.0
• Asus BoostMaster 18W adapter included
• Colors: Black, Gold, Gray, Red, White
• Asus ZenUI
• Fast battery charging: 60% in 40min
• 5GB free ASUS WebStorage
• OpenGL 3.0

☢️ Radiation rate

Asus Zenfone 2 (ZE551ML 32GB)Asus Zenfone 2 (ZE550ML)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
X

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