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Asus Zenfone 3 (5.5 ZE552KL 64GB) vs Asus Zenfone 5Z (ZS621KL 256GB)

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

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Compare Asus Zenfone 5Z XAsus Zenfone 3 (5.5 ZE552KL 64GB)02Points
Asus Zenfone 3 (5.5 ZE552KL 64GB)
5.5"
IPS+

1080x1920

16
MP

8mp

4GB
RAM

64bit Octa

3000
mAh

(Non removable)

vs
16PointsAsus Zenfone 5Z (ZS621KL 256GB)Compare Asus Zenfone 3 X
Asus Zenfone 5Z (ZS621KL 256GB)
6.2"
IPS

1080x2246

12
MP

8mp

8GB
RAM

64bit Octa

3300
mAh

(Non removable)

What's the better phone? Asus Zenfone 5Z (ZS621KL 256GB)

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 64GB)2 Advantages Asus Zenfone 3 (5.5 ZE552KL 64GB)vsZenfone 5Z (ZS621KL 256GB)16 Advantages Asus Zenfone 5Z (ZS621KL 256GB)
+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)
2GHz 64bit Octa-Corevs+2.7GHz 64bit Octa-Core21%
More powerful processor, you can open your applications faster
4GB LPDDR3vs+8GB LPDDR4X100%
More RAM memory. Typically more responsive and better for multitasking.
64GB (55GB available)vs+256GB (240GB available)3 times
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

32 Common items in both devices
TFT Super IPS+ / TFT IPS LCD
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
+25 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

📱 Model features

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
ModelZenfone 3 (5.5 ZE552KL 64GB)Zenfone 5Z (ZS621KL 256GB)
Other model namesAsus Zenfone 3 ZE552KL 4GB/64GB 5.5" Dual-Sim, Asus LibraAsus Zenfone 5z 8GB RAM (ZS621KL), ASUS_Z01RD
Country or region available(Global, International)BrazilCanadaChinaUSA(Europe)Hong KongIndiaIndonesiaJapanTaiwan
(Global, International), Brazil, Canada, China, USA, (Europe), Hong Kong, India, Indonesia, Japan, Taiwan
India
India
BrandAsusAsus
Release date7/12/20166/1/2018
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)
Build, materialsfeature not registeredAluminum frame, glass front/back
Protection against water and othersNot supportedNot supported

🤖 Operating System

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
System versionAndroid 6.0.1 MarshmallowAndroid 8.0 Oreo
Firmware updateAndroid 8.0 OreoAndroid 10
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
Chipset64bit - Qualcomm Snapdragon 625 MSM8953 (14nm)64bit - Qualcomm Snapdragon 845 MSM8998 (10nm)
CPUOcta-Core, 1 processor:
2GHz Octa-Core ARM Cortex-A53
Octa-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
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
RAM memory4GB LPDDR38GB LPDDR4X
Internal storage64GB (55GB available)256GB (240GB 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)

📲 Display

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
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, 550nits[typ]

📶 Mobile networks

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
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

📷 Camera

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
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
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
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

🔉 Sound and multimedia

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or more2 microphones or more
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

🔌 Connectivity

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
USBUSB 2.0 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputNot supportedNot supported
Bluetooth4.2 + A2DP5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)
WiFi Direct, hotspot
802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, BeiDou
NFCNot supportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
SensorsAccelerometer
Ambient Light sensor
Compass
Fingerprint sensor
Gyroscope
Hall effect
Proximity sensor
Accelerometer
Ambient Light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
Battery typeLi-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 registered25 hours (1 days)
Standbyfeature not registeredfeature not registered

➕ Other features

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
Call controlVoice dialing, Voice recorder, Voice commandsVoice 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: 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
- 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)

☢️ Radiation rate

Asus Zenfone 3 (5.5 ZE552KL 64GB)Asus Zenfone 5Z (ZS621KL 256GB)
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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