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Samsung Galaxy S8 Plus (SM-G955FD) vs Asus Zenfone 5Z (ZS621KL 128GB)

Side by side comparison between Samsung Galaxy S8 Plus vs Asus Zenfone 5Z phones, differences, pros, cons and full specifications. What's the better?

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Compare Asus Zenfone 5Z X Samsung Galaxy S8 Plus (SM-G955FD) 18Points
6.2"
AMOLED

1440x2960

12.2
MP

8mp

4GB
RAM

Octa-core

3500
mAh

(Non removable)

vs
10Points Asus Zenfone 5Z (ZS621KL 128GB) Compare Samsung Galaxy S8 Plus X
6.2"
IPS

1080x2246

12
MP

8mp

6GB
RAM

Octa-core

3300
mAh

(Non removable)

What's the better phone? Samsung Galaxy S8 Plus (SM-G955FD)

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!

Galaxy S8 Plus (SM-G955FD)} 18 Advantages Samsung Galaxy S8 Plus (SM-G955FD) vs Zenfone 5Z (ZS621KL 128GB)} 10 Advantages Asus Zenfone 5Z (ZS621KL 128GB)
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
vsTFT IPS LCD
+HDR10Advantage
The HDR10 display provides vibrant colors and more details
vsNot supported
+1440x2960 pixels76%
Higher resolution screen
vs1080x2246 pixels
+531 PPI32%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs402 PPI
+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
vsNot supported
+f/1.7 (aperture)6%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/1.8 (aperture)
+(front) 2K UHD (2560x1440)78%
More image quality for recording videos with the secondary camera
vs(front) Full HD (1920x1080)
+(4G LTE-A) 1024 Mbps28%
Faster for surfing the internet and download files
vs(4G LTE-A) 800 Mbps
+ANT+Advantage
Sensors help you use the device
vsNot supported
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+Heart rateAdvantage
Sensors help you use the device
vsNot supported
+Iris scannerAdvantage
Sensors help you use the device
vsNot supported
+SpO2Advantage
Sensors help you use the device
vsNot supported
+3500 mAh6%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs3300 mAh
+Qi wireless charging (Qi/PMA)Advantage
Wireless charging is another way to charge the battery.
vsNot supported
+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
vsNot supported
+USB 3.1 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.
vsUSB 2.0 Type-C, USB OTG On-The-Go
+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
2.3GHz 64bit Octa-core (10nm)vs+2.7GHz 64bit Octa-core23%
More powerful processor, you can open your applications faster
4GB LPDDR4vs+6GB LPDDR4X50%
More RAM memory. Typically more responsive and better for multitasking.
64GB (51GB available)vs+128GB (111GB available)118%
More internal storage for applications and files
173 grams (6.06 ounces)vs+165 grams (5.78 ounces)5%
Lighter
8.1 millimeters (0.32 inches)vs+7.9 millimeters (0.31 inches)3%
Thinner
(back) 12.2MPvs+(dual camera) 12MP + 8MP64%
Higher resolution main camera
LED flashvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
Android 9.0 Pievs+Android 10Advantage
Android 10 is newer and safer
15Wvs+18W20%
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.
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general

36 Common items in both devices
UFS 2.1
Until 1TB microSD, microSDXC
Aluminum frame, glass front/back
60Hz
16 million
6.2"
Only digital zoom
+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

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
ModelGalaxy S8 Plus (SM-G955FD)Zenfone 5Z (ZS621KL 128GB)
Other model namesGalaxy S8+ Duos G955FD (Exynos), Samsung Dream 2Asus Zenfone 5z 6GB RAM (ZS621KL), ASUS_Z01RD
Country or region available(Global, International)BrazilSingapore
(Global, International), Brazil, Singapore
India
India
BrandSamsungAsus
Release date4/21/2017, Announced: 3/29/20176/1/2018
Depth8.1 millimeters (0.32 inches)7.9 millimeters (0.31 inches)
Size (width x height)73.4 x 160 millimeters (2.89 x 6.3 in)75.65 x 153 millimeters (2.98 x 6.02 in)
Weight173 grams (6.06 ounces)165 grams (5.78 ounces)
Build, materialsAluminum frame, glass front/backAluminum frame, glass front/back
Protection against water and othersIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistantNot supported

📲 Display

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
Display typeSuper AMOLEDTFT IPS LCD
Screen size6.2" inches6.2" inches
Screen-to-body ratio~83.1% (screen-to-body ratio)~83.7% (screen-to-body ratio)
Display resolution1440x2960 pixels (18.5:9)1080x2246 pixels (18.7:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch 10-points
Pixel density (dot pitch)531 PPI402 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 5Gorilla Glass
Refresh rate60Hz60Hz
Display featuresHDR10550nits[typ]

🤖 Operating System

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
System versionAndroid 7.0 NougatAndroid 8.0 Oreo
Firmware updateAndroid 9.0 PieAndroid 10
User Interfacefeature not registeredfeature not registered

⚙️ Processor

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
Chipset64bit: Samsung Exynos 8895 (10nm)64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)
CPUOcta-core, 2 processors:
4x 2.3GHz M2 Mongoose (Quad-core)
4x 1.7GHz ARM Cortex-A53 (Quad-core)
Octa-core, 2 processors:
4x 2.7GHz Kryo 385 Gold (Quad-core)
4x 1.7GHz Kryo 385 Silver (Quad-core)
GPU graphical controllerARM Mali-G71 MP20 (546MHz)Qualcomm Adreno 630 710Mhz
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
RAM memory4GB LPDDR46GB LPDDR4X
Internal storage64GB (51GB available)
UFS 2.1
128GB (111GB 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

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
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 / Upload1024/150 Mbps800/100 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 850/900/1700/1900/2100UMTS 800/850/900
Primary 4G networkLTE Cat16 (1,2,3,4,5,7,8,12,20,28,29,30)
TD-LTE (38,39,40,41)
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

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
Back camera (main camera)12.2 megapixels(dual camera)
12 megapixels
8MP ultrawide f/2.012mm1/4"1.12µmFF
Main camera resolution4032x3024 pixels4000x3000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 30 fps
FlashLED flashDual-LED flash
Focal aperturef/1.7 (aperture)f/1.8 (aperture)
Focal length26mm (lens)24mm (lens)
Sensor size1/2.55" inches1/2.55" inches
Pixel size1.4µm pixel1.4µm pixel
AutofocusPDAF on back camera and autofocus front cameraPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationOIS (4-axis): Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedNot supported
HDRHDR photo/video on both camerasHDR photo on both cameras
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
Front camera (secondary)8 megapixels8 megapixels
Front camera resolution3264x2448 pixels3264x2448 pixels
Video recording (secondary)2K UHD (2560x1440)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/1.7 (aperture)f/2.0 (aperture)
Focal length25mm (lens)24mm (lens)
Sensor size1/3.6" inches1/4" inches
Pixel size1.22µm pixel1.12µm pixel

🔉 Sound and multimedia

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
LoudspeakerSupportedSupported
Active noise cancellation2 microphones or more2 microphones or more
RadioNot supportedFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, DivX, XviDMP4, H.265, H.264, H.263
Audio formatsMP3, WAV, eAAC+, FLACMP3, OGG, eAAC+, FLAC

🔌 Connectivity

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
USBUSB 3.1 Type-C, USB OTG On-The-GoUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputUSB Type-C (reversible)Not supported
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz)
WiFi Direct, hotspot
DLNASupportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, BeiDou
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
SensorsAccelerometer
Ambient light sensor
ANT+
Barometer
Compass
Face unlock 2D
Fingerprint sensor (rear-mounted)
Gyroscope
Hall effect
Heart rate
Iris scanner
Proximity sensor
SpO2
Accelerometer
Ambient light sensor
Compass
Face unlock 2D
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
Battery typeLi-Ion: lithium-ion (Non removable)Li-Ion: lithium-ion (Non removable)
Battery capacity3500 mAh3300 mAh
Charger, watts15W (9V/1.67A) Wired fast charging
Quick Charge 2
18W (9V/2A) Wired fast charging
Inductive / wireless chargingQi wireless charging (Qi/PMA)Not supported
Talk time autonomy34 hours (1.4 days)25 hours (1 days)
Standby343 hours (14.3 days)feature not registered

➕ Other features

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
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: Black, Silver, Blue, Gold, Orchid Gray
• Samsung DeX (desktop experience)
• Curved edge screen
• Corning Gorilla Glass 5 back panel
• Samsung Gear VR compatible
• Samsung Pay
• 32bit/192kHz audio
• 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

Galaxy S8 Plus (SM-G955FD)Asus Zenfone 5Z (ZS621KL 128GB)
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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