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Asus Zenfone 5Z (ZS621KL 256GB) vs Asus Zenfone 5Z (ZS620KL 256GB)

Side by side comparison between Asus Zenfone 5Z (ZS621KL 256GB) vs Asus Zenfone 5Z (ZS620KL 256GB) phones, differences, pros, cons and full specifications. What's the better?

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Compare Asus Zenfone 5Z X Asus Zenfone 5Z (ZS621KL 256GB) 00Point
6.2"
IPS

1080x2246

12
MP

8mp

8GB
RAM

Octa-core

3300
mAh

(Non removable)

vs
01Point Asus Zenfone 5Z (ZS620KL 256GB) Compare Asus Zenfone 5Z X
6.2"
IPS

1080x2246

12
MP

8mp

8GB
RAM

Octa-core

3300
mAh

(Non removable)

What's the better phone? Asus Zenfone 5Z (ZS620KL 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 5Z (ZS621KL 256GB)} 0 Advantage Asus Zenfone 5Z (ZS621KL 256GB) vs Zenfone 5Z (ZS620KL 256GB)} 1 Advantage Asus Zenfone 5Z (ZS620KL 256GB)
(4G LTE-A) 800 Mbpsvs+(4G LTE-A) 1200 Mbps50%
Faster for surfing the internet and download files

49 Common items in both devices
2.7GHz 64bit Octa-core
8GB LPDDR4X
256GB (240GB available)
UFS 2.1
Until 1TB microSD, microSDXC
165 grams (5.78 ounces)
7.9 millimeters (0.31 inches)
+42 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 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
ModelZenfone 5Z (ZS621KL 256GB)Zenfone 5Z (ZS620KL 256GB)
Other model namesAsus Zenfone 5z 8GB RAM (ZS621KL), ASUS_Z01RDAsus Zenfone 5z 8GB RAM, ASUS_Z01RD
Country or region availableIndia
India
(Global, International)
(Global, International)
BrandAsusAsus
Release date6/1/20186/1/2018
Depth7.9 millimeters (0.31 inches)7.9 millimeters (0.31 inches)
Size (width x height)75.65 x 153 millimeters (2.98 x 6.02 in)75.65 x 153 millimeters (2.98 x 6.02 in)
Weight165 grams (5.78 ounces)165 grams (5.78 ounces)
Build, materialsAluminum frame, glass front/backAluminum frame, glass front/back
Protection against water and othersNot supportedNot supported

📲 Display

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
Display typeTFT IPS LCDTFT IPS LCD
Screen size6.2" inches6.2" inches
Screen-to-body ratio~83.7% (screen-to-body ratio)~83.7% (screen-to-body ratio)
Display resolution1080x2246 pixels (18.7:9)1080x2246 pixels (18.7:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch 10-points
Pixel density (dot pitch)402 PPI402 PPI
Colors16 million16 million
Scratch-resistant glassGorilla GlassGorilla Glass
Refresh rate60Hz60Hz
Display features550nits[typ]550nits[typ]

🤖 Operating System

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
System versionAndroid 8.0 OreoAndroid 8.0 Oreo
Firmware updateAndroid 10Android 10
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
Chipset64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)
CPUOcta-core, 2 processors:
4x 2.7GHz Kryo 385 Gold (Quad-core)
4x 1.7GHz Kryo 385 Silver (Quad-core)
Octa-core, 2 processors:
4x 2.7GHz Kryo 385 Gold (Quad-core)
4x 1.7GHz Kryo 385 Silver (Quad-core)
GPU graphical controllerQualcomm Adreno 630 710MhzQualcomm Adreno 630 710Mhz
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
RAM memory8GB LPDDR4X8GB LPDDR4X
Internal storage256GB (240GB available)
UFS 2.1
256GB (240GB available)
UFS 2.1
External storageUntil 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
Until 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)

📶 Mobile networks

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 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)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload800/100 Mbps1200/100 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 800/850/900A version:
UMTS 800/850/900/1800/1900/2100
B version (USA):
UMTS 800/850/900/1800/1900/2100
C version:
UMTS 850/900/2100
Primary 4G networkLTE Cat15 (Bands 1,2,3,5,7,8,18,19,20,26,28)
TD-LTE (Bands 38,39,40,41)
LTE Cat15/Cat18
A version:
LTE Cat15 (Bands 1,2,3,5,7,8,18,19,20,26,28,32)
TD-LTE (Bands 34,38,39,40,41)
B version (USA):
LTE Cat18 (Bands 1,2,3,5,7,8,18,19,28)
TD-LTE (Bands 38,39,41)
C version:
LTE Cat18 (Bands 1,3,5,7,8,20)
TD-LTE (Band 40)
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 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
Back camera (main camera)(dual camera)
12 megapixels
8MP ultrawide f/2.012mm1/4"1.12µmFF
(dual camera)
12 megapixels
8MP ultrawide f/2.012mm1/4"1.12µmFF
Main camera resolution4000x3000 pixels4000x3000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 30 fps
FlashDual-LED flashDual-LED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length24mm lens24mm lens
Sensor size1/2.55" inches1/2.55" inches
Pixel size1.4µm pixel1.4µm pixel
AutofocusPDAF: 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 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 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 length24mm lens24mm lens
Sensor size1/4" inches1/4" inches
Pixel size1.12µm pixel1.12µm pixel

🔉 Sound and multimedia

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or more2 microphones or more
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263MP4, H.265, H.264, H.263
Audio formatsMP3, OGG, eAAC+, FLACMP3, OGG, eAAC+, FLAC

🔌 Connectivity

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
USBUSB 2.0 Type-C, USB OTG On-The-GoUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputNot supportedNot supported
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
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, GLONASS, BeiDouA-GPS, GeoTagging, GLONASS, BeiDou
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
Battery typeLi-Ion: lithium-ion (Non removable)Li-Ion: lithium-ion (Non removable)
Battery capacity3300 mAh3300 mAh
Charger, watts18W (9V/2A) Wired fast charging18W (9V/2A) Wired fast charging
Inductive / wireless chargingNot supportedNot supported
Talk time autonomy25 hours (1 days)25 hours (1 days)
Standbyfeature not registeredfeature not registered

➕ Other features

Asus Zenfone 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
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: 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)
• 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 5Z (ZS621KL 256GB)Asus Zenfone 5Z (ZS620KL 256GB)
SAR 1.6W/kg (USA, Mexico, etc.)1.04W/kg (head), 0.37W/kg (body)1.16W/kg (head), 0.89W/kg (body)
SAR 2W/kg (Europe, UK, etc.)1.2W/kg (head), 1.477W/kg (body)1.16W/kg (head), 1.59W/kg (body)
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