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Asus Zenfone 3 (5.5 ZE552KL 32GB) vs Asus Zenfone 5Z (ZS621KL 64GB)

Side by side comparison between Asus Zenfone 3 vs Asus Zenfone 5Z phones, differences, pros, cons with full specifications. What's the better?

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Compare Asus Zenfone 5Z XAsus Zenfone 3 (5.5 ZE552KL 32GB)03Points
Asus Zenfone 3 (5.5 ZE552KL 32GB)
5.5"
IPS+

1080x1920

16
MP

8mp

3GB
RAM

64bit Octa

3000
mAh

(Non removable)

vs
16PointsAsus Zenfone 5Z (ZS621KL 64GB)Compare Asus Zenfone 3 X
Asus Zenfone 5Z (ZS621KL 64GB)
6.2"
IPS

1080x2246

12
MP

8mp

6GB
RAM

64bit Octa

3300
mAh

(Non removable)

What's the better phone? Asus Zenfone 5Z (ZS621KL 64GB)

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!

Zenfone 3 (5.5 ZE552KL 32GB)3 Advantages Asus Zenfone 3 (5.5 ZE552KL 32GB)vsZenfone 5Z (ZS621KL 64GB)16 Advantages Asus Zenfone 5Z (ZS621KL 64GB)
+155 grams (5.43 ounces)6%
Lighter
vs165 grams (5.78 ounces)
+7.7 millimeters (0.3 inches)3%
Thinner
vs7.9 millimeters (0.31 inches)
+TFT Super IPS+Advantage
TFT Super IPS+ display is brighter and more vivid
vsTFT IPS LCD
2Ghz 64bit Octa-Corevs+2.7Ghz 64bit Octa-Core21%
More powerful processor, you can open your applications faster
3GB LPDDR3vs+6GB LPDDR4X100%
More RAM memory. Typically more responsive and better for multitasking.
32GB (24GB available)vs+64GB (51GB available)113%
More internal storage for applications and files
Until 256GB microSD, microSDXCvs+Until 1TB microSD, microSDXC3 times
More external storage for files using memory cards
1080x1920 pixelsvs+1080x2246 pixels17%
Higher resolution screen
401 PPIvs+402 PPI1%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.5"vs+6.2"13%
Larger screen
(back) 16MPvs+(dual camera) 12MP + 8MP26%
Higher resolution main camera
f/2.0 (aperture)vs+f/1.8 (aperture)11%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
Android 8.0 Oreovs+Android 10Advantage
Android 10 is newer and safer
(4G+ LTE-A) 300 Mbpsvs+(4G+ LTE-A) 800 Mbps167%
Faster for surfing the internet and download files
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
3000 mAhvs+3300 mAh10%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
10Wvs+18W80%
More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
4.2 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely

31 Common items in both devices
16 million
Dual-LED flash
Only digital zoom
LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus
OIS (4-axis): Optical stabilization
HDR photo on both cameras
(front) 8MP
+24 specs and more in the table below

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

Highlight differencesClear highlight
Physical featuresAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
ModelZenfone 3 (5.5 ZE552KL 32GB)Zenfone 5Z (ZS621KL 64GB)
Other model namesAsus Zenfone 3 ZE552KL 3GB/32GB 5.5" Dual-Sim, Asus LibraAsus Zenfone 5z 6GB RAM (ZS621KL), ASUS_Z01RD
Country or region available(Global, International)China(Europe)
(Global, International), China, (Europe)
India
India
BrandAsusAsus
Release dateJuly, 2016June, 2018
Depth7.7 millimeters (0.3 inches)7.9 millimeters (0.31 inches)
Size (width x height)77.38 x 152.59 millimeters (3.05 x 6.01 in)75.65 x 153 millimeters (2.98 x 6.02 in)
Weight155 grams (5.43 ounces)165 grams (5.78 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsfeature not registeredAluminum frame, glass front/back
Protection against water and othersNot supportedNot supported
System (OS)Asus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
Operating systemAndroid 6.0.1 MarshmallowAndroid 8.0 Oreo
Firmware updateAndroid 8.0 OreoAndroid 10
HardwareAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
Chipset64bit - Qualcomm Snapdragon 625 MSM8953 (14nm)64bit - Qualcomm Snapdragon 845 MSM8998 (10nm)
CPU processor2Ghz Octa-Core ARM Cortex-A53Octa-Core, 2 processors:
2.7Ghz Quad-Core Kryo 385 Gold
1.7Ghz Quad-Core Kryo 385 Silver
GPU graphical controllerQualcomm Adreno 506 650MhzQualcomm Adreno 630 710Mhz
RAM memory3GB LPDDR36GB LPDDR4X
Internal storage32GB (24GB available)64GB (51GB available)
UFS 2.1
External storageUntil 256GB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
Until 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
DisplayAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
Display typeTFT Super IPS+TFT IPS LCD
Screen size5.5" inches6.2" inches
Screen-to-body ratio~70.6% (screen-to-body ratio)~83.7% (screen-to-body ratio)
Display resolution1080x1920 pixels1080x2246 pixels (18.7:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch 10-points
Pixel density (dot pitch)401 PPI402 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Gorilla Glass
Display featuresfeature not registered60Hz, 550 nits
Mobile networksAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
Dual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
SIM card2 slots (Dual-SIM)
micro-SIM (3FF) and nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload300/50 Mbps800/100 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse 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

Global: 850/900/1900/2100

Taiwan: 800/850/900/1900/2100

India: 850/900/2100
UMTS 800/850/900
Primary 4G networkLTE Cat6

Global:
LTE 800/850/900/1800/1900/2100/2600 (Bands 1,2,3,5,7,8,20)

Taiwan:
LTE 700/800/850/900/1800/1900/2100/2600 (Bands 1,2,3,5,7,8,18,19,26,28)
TD-LTE 1900/2300/2500/2600 (38,39,40,41)

India:
LTE 850/900/1800/2100 (Bands 1,3,5,8)
TD-LTE 2300 (Bands 40)

USA/Brazil:
LTE 700/850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8,17,28)
LTE Cat15 (Bands 1,2,3,5,7,8,18,19,20,26,28)
TD-LTE (Bands 38,39,40,41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
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
CallingAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder
CameraAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
Back camera (main camera)16 megapixels(dual camera)
12 megapixels
8MP ultrawidef/2.012mm1/4"1.12µmFF
Main camera resolution4608x3456 pixels4000x3000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 30 fps
FlashDual-LED flashDual-LED flash
Focal aperturef/2.0 (aperture)f/1.8 (aperture)
Focal lengthfeature not registered24mm lens
Sensor sizefeature not registered1/2.55" inches
Pixel sizefeature not registered1.4µm pixel
AutofocusLDAF/PDAF: laser/phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS (4-axis): Optical stabilizationOIS (4-axis): Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo on both cameras
2ª cameraAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
Front camera (secondary)8 megapixels8 megapixels
Front camera resolution3264x2448 pixels3264x2448 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.0 (aperture)
Focal lengthfeature not registered24mm lens
Sensor sizefeature not registered1/4" inches
Pixel sizefeature not registered1.12µm pixel
MultimediaAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
RadioFM (RDS)FM
TVNot supportedNot supported
Video formatsMP4, H.264, H.263MP4, H.265, H.264, H.263
Audio formatsMP3, WAV, eAAC+, FLACMP3, OGG, eAAC+, FLAC
ConnectivityAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
USBUSB 2.0 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth4.2 + A2DP5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)
DLNANot supportedNot supported
NFCNot supportedSupported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, BeiDou
Infrared portNot supportedNot supported
Other functionsAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Fingerprint sensor
Hall effect
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Other features- Colors: Sapphire Black, Moonlight White, Shimmer Gold
- USB OTG On-The-Go
- Asus ZenUI 3.0
- Gorilla Glass 2.5D (back and front)
- 600nits brightness screen
- Sony IMX298 sensor camera
- WiFi direct, hotspot
- Colors: Midnight Blue, Meteor Silver
- 2.5D curved glass screen
- 95% DCI-P3 coverage
- Supports glove touch
- ASUS ZenUI 5.0
- 24-bit/192kHz audio
- DTS sound (only headphones)
- WiFi direct, hotspot
Power supplyAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
BatteryLi-Ion: Lithium-Ion (Non removable)Li-Ion: Lithium-Ion (Non removable)
Battery capacity3000 mAh3300 mAh
Charger, watts10W (5V/2A) Standard charging18W (9V/2A) Fast battery charging
Talk time autonomyfeature not registered1500 minutes | 25 hours | 1 days
Standbyfeature not registeredfeature not registered
Radiation rateAsus Zenfone 3 (5.5 ZE552KL 32GB)Asus Zenfone 5Z (ZS621KL 64GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered1.04W/kg (head) | 0.37W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered1.2W/kg (head) | 1.477W/kg (body)
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