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?

8/26/2018 9:15 AM, updated: 9/28/2020 10:56 PM

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

Specifications Compare Models

5.5"
IPS+

1080x1920

16
MP

8mp

3GB
RAM

64bit Octa

3000
mAh

(Non removable)

16PointsAsus Zenfone 5Z (ZS621KL 64GB)Compare Asus Zenfone 3 X

Specifications Compare Models

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!

3 Advantages Asus Zenfone 3 (5.5 ZE552KL 32GB)	vs	16 Advantages Asus Zenfone 5Z (ZS621KL 64GB)
+155 grams (5.43 ounces)6% Lighter	vs	165 grams (5.78 ounces)
+7.7 millimeters (0.3 inches)3% Thinner	vs	7.9 millimeters (0.31 inches)
+TFT Super IPS+Advantage TFT Super IPS+ display is brighter and more vivid	vs	TFT IPS LCD
2Ghz 64bit Octa-Core	vs	+2.7Ghz 64bit Octa-Core21% More powerful processor, you can open your applications faster
3GB LPDDR3	vs	+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, microSDXC	vs	+Until 1TB microSD, microSDXC3 times More external storage for files using memory cards
1080x1920 pixels	vs	+1080x2246 pixels17% Higher resolution screen
401 PPI	vs	+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) 16MP	vs	+(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 Oreo	vs	+Android 10Advantage Android 10 is newer and safer
(4G+ LTE-A) 300 Mbps	vs	+(4G+ LTE-A) 800 Mbps167% Faster for surfing the internet and download files
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
3000 mAh	vs	+3300 mAh10% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
10W	vs	+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 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+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 differences

Physical features	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Model	Zenfone 3 (5.5 ZE552KL 32GB)	Zenfone 5Z (ZS621KL 64GB)
Other model names	Asus Zenfone 3 ZE552KL 3GB/32GB 5.5" Dual-Sim, Asus Libra	Asus Zenfone 5z 6GB RAM (ZS621KL), ASUS_Z01RD
Country or region available	(Global, International), China, (Europe)	India
Brand	Asus	Asus
Release date	July, 2016	June, 2018
Depth	7.7 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)
Weight	155 grams (5.43 ounces)	165 grams (5.78 ounces)
Qwerty physical keyboard	Not supported	Not supported
Antenna	Internal antenna	Internal antenna
Build, materials	feature not registered	Aluminum frame, glass front/back
Protection against water and others	Not supported	Not supported
System (OS)	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Operating system	Android 6.0.1 Marshmallow	Android 8.0 Oreo
Firmware update	Android 8.0 Oreo	Android 10
Hardware	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Chipset	64bit - Qualcomm Snapdragon 625 MSM8953 (14nm)	64bit - Qualcomm Snapdragon 845 MSM8998 (10nm)
CPU 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 controller	Qualcomm Adreno 506 650Mhz	Qualcomm Adreno 630 710Mhz
RAM memory	3GB LPDDR3	6GB LPDDR4X
Internal storage	32GB (24GB available)	64GB (51GB available) UFS 2.1
External storage	Until 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 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Display type	TFT Super IPS+	TFT IPS LCD
Screen size	5.5" inches	6.2" inches
Screen-to-body ratio	~70.6% (screen-to-body ratio)	~83.7% (screen-to-body ratio)
Display resolution	1080x1920 pixels	1080x2246 pixels (18.7:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch 10-points
Pixel density (dot pitch)	401 PPI	402 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass
Display features	feature not registered	60Hz, 550 nits
Mobile networks	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Dual-SIM	Dual-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 card	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum download/upload	300/50 Mbps	800/100 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band detailsCollapse details
GSM Mhz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS Global: 850/900/1900/2100 Taiwan: 800/850/900/1900/2100 India: 850/900/2100	UMTS 800/850/900
Primary 4G network	LTE 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 network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
Calling	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Speakerphone	Supported	Supported
Video calling	Supported	Supported
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
Camera	Asus 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 resolution	4608x3456 pixels	4000x3000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	Dual-LED flash
Focal aperture	f/2.0 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	24mm lens
Sensor size	feature not registered	1/2.55" inches
Pixel size	feature not registered	1.4µm pixel
Autofocus	LDAF/PDAF: laser/phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): Optical stabilization	OIS (4-axis): Optical stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
2ª camera	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Front camera (secondary)	8 megapixels	8 megapixels
Front camera resolution	3264x2448 pixels	3264x2448 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	24mm lens
Sensor size	feature not registered	1/4" inches
Pixel size	feature not registered	1.12µm pixel
Multimedia	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, OGG, eAAC+, FLAC
Connectivity	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
USB	USB 2.0 Type-C reversible connector	USB 2.0 Type-C, USB OTG On-The-Go
TV output	Not supported	Not supported
Audio output	3.5mm jack	3.5mm jack
Bluetooth	4.2 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)	802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)
DLNA	Not supported	Not supported
NFC	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
Infrared port	Not supported	Not supported
Other functions	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Active noise cancellation	Supported	Supported
Vibrating alert	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Sensors	Accelerometer 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 supply	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
Battery	Li-Ion: Lithium-Ion (Non removable)	Li-Ion: Lithium-Ion (Non removable)
Battery capacity	3000 mAh	3300 mAh
Charger, watts	10W (5V/2A) Standard charging	18W (9V/2A) Fast battery charging
Talk time autonomy	feature not registered	1500 minutes \| 25 hours \| 1 days
Standby	feature not registered	feature not registered
Radiation rate	Asus Zenfone 3 (5.5 ZE552KL 32GB)	Asus Zenfone 5Z (ZS621KL 64GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	1.04W/kg (head) \| 0.37W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	1.2W/kg (head) \| 1.477W/kg (body)