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Samsung Galaxy S8 (SM-G9500) vs Samsung Galaxy A51 (SM-A515F/DS)

Side by side comparison between Samsung Galaxy S8 vs Samsung Galaxy A51 phones, differences, pros, cons with full specifications. What's the better?

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Compare Samsung Galaxy A51 XSamsung Galaxy S8 (SM-G9500)20Points
Samsung Galaxy S8 (SM-G9500)
5.8"
AMOLED

1440x2960

12.2
MP

8mp

4GB
RAM

64bit Octa

3000
mAh

(Non removable)

vs
10PointsSamsung Galaxy A51 (SM-A515F/DS)Compare Samsung Galaxy S8 X
Samsung Galaxy A51 (SM-A515F/DS)
6.5"
AMOLED

1080x2400

48
MP

32mp

4GB
RAM

64bit Octa

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S8 (SM-G9500)

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 (SM-G9500)20 Advantages Samsung Galaxy S8 (SM-G9500)vsGalaxy A51 (SM-A515F/DS)10 Advantages Samsung Galaxy A51 (SM-A515F/DS)
+2.35Ghz 64bit Octa-Core12%
More powerful processor, you can open your applications faster
vs2.3Ghz 64bit Octa-Core
+UFS 2.0Advantage
Fastest write and read storage.
vseMMC 5.1
+155 grams (5.43 ounces)11%
Lighter
vs172 grams (6.02 ounces)
+Aluminum frame, glass front/backAdvantage
More resistant material
vsPlastic body, glass front
+HDR10Advantage
The HDR10 display provides vibrant colors and more details
vsNot supported
+1440x2960 pixels64%
Higher resolution screen
vs1080x2400 pixels
+568 PPI40%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs405 PPI
+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
vsEIS: Digital stabilization
+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
vsNot supported
+f/1.7 (aperture)18%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/2.0 (aperture)
+(4G+ LTE-A) 1024 Mbps71%
Faster for surfing the internet and download files
vs(4G+ LTE-A) 600 Mbps
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+Iris scannerAdvantage
Sensors help you use the device
vsNot supported
+Heart rateAdvantage
Sensors help you use the device
vsNot supported
+SpO2Advantage
Sensors help you use the device
vsNot supported
+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
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
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
64GB (51GB available)vs+128GB (107GB available)110%
More internal storage for applications and files
8 millimeters (0.31 inches)vs+7.9 millimeters (0.31 inches)1%
Thinner
5.8"vs+6.5"12%
Larger screen
(back) 12.2MPvs+(quad camera) 48MP + 12MP + 5MP + 5MP5 times
Higher resolution main camera
1/2.55" inchesvs+1/2" inches28%
The larger sensor camera lets you take photos with better depth.
(front) 8MPvs+(front) 32MP3 times
Higher resolution secondary camera to take pictures and selfies
(front) 2K UHD (2560x1440)vs+(front) 4K UHD (3840x2160)125%
More image quality for recording videos with the secondary camera
Android 9.0 Pievs+Android 10Advantage
Android 10 is newer and safer
3000 mAhvs+4000 mAh33%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
2 slots (Dual-SIM)
(hybrid slot/shares the same microSD slot)
vs+2 slots (Dual-SIM)
(dedicated slot)Advantage
More SIM card slots. You can choose more carriers.

34 Common items in both devices
4GB LPDDR4 / 4GB LPDDR4X
Until 1TB microSD, microSDXC
Super AMOLED
60Hz
16 million
LED flash
Only digital zoom
+27 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 featuresSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
ModelGalaxy S8 (SM-G9500)Galaxy A51 (SM-A515F/DS)
Other model namesGalaxy S8 Duos G9500 (Snapdragon), Samsung DreamSamsung Galaxy A51 SM-A515F/DS
Country or region availableChina
China
(Latin America)
(Latin America)
BrandSamsungSamsung
Release dateApril, 2017December, 2019
Depth8 millimeters (0.31 inches)7.9 millimeters (0.31 inches)
Size (width x height)68.1 x 148.9 millimeters (2.68 x 5.86 in)73.6 x 158.5 millimeters (2.9 x 6.24 in)
Weight155 grams (5.43 ounces)172 grams (6.02 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsAluminum frame, glass front/backPlastic body, glass front
Protection against water and othersIP68 certified: dust proof and waterproof over 1.5 meter and 30minNot supported
System (OS)Samsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
Operating systemAndroid 7.0 NougatAndroid 10
Firmware updateAndroid 9.0 Piefeature not registered
HardwareSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
Chipset64bit - Qualcomm Snapdragon 835 MSM8998 (10nm)64bit - Samsung Exynos 9 Octa 9611 (10nm)
CPU processorOcta-Core, 2 processors:
2.35Ghz Quad-Core Kryo
1.9Ghz Quad-Core Kryo
Octa-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A73
1.7Ghz Quad-Core ARM Cortex-A53
GPU graphical controllerQualcomm Adreno 540ARM Mali-G72 MP3
RAM memory4GB LPDDR44GB LPDDR4X
Internal storage64GB (51GB available)
UFS 2.0
128GB (107GB available)
eMMC 5.1
External storageUntil 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
Until 1TB microSD, microSDXC
(dedicated slot)
DisplaySamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
Display typeSuper AMOLEDSuper AMOLED
Screen size5.8" inches6.5" inches
Screen-to-body ratio~84.2% (screen-to-body ratio)~87.4% (screen-to-body ratio)
Display resolution1440x2960 pixels (18.5:9)1080x2400 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)568 PPI405 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 5Gorilla Glass 3
Display features60Hz, HDR1060Hz
Mobile networksSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
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
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload1024/150 Mbps600/150 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 networkCDMA 800, GSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkCDMA2000
TD-SCDMA 1900/2000
UMTS 850/900/1900/2100
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat16 (1,2,3,4,5,7,8,12,20,28,29,30)
TD-LTE (38,39,40,41)
LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66)
VoLTE
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, 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
CallingSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
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
CameraSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
Back camera (main camera)12.2 megapixels(quad camera)
48 megapixels
12MP ultrawidef/2.213mm1.12µm
5MP telephotof/2.440mm
5MP depthf/2.21/5.0"1.12µm
Main camera resolution4032x3024 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 30 fps
FlashLED flashLED flash
Focal aperturef/1.7 (aperture)f/2.0 (aperture)
Focal length26mm lens26mm lens
Sensor size1/2.55" inches1/2" inches
Pixel size1.4µm pixel0.8µm pixel
AutofocusPDAF on back camera and autofocus front cameraPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationEIS: Digital 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
2ª cameraSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
Front camera (secondary)8 megapixels32 megapixels
Front camera resolution3264x2448 pixels6528x4896 pixels
Video recording (secondary)2K UHD (2560x1440)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/1.7 (aperture)f/2.2 (aperture)
Focal length25mm lens26mm lens
Sensor size1/3.6" inches1/2.8" inches
Pixel size1.22µm pixel0.8µm pixel
MultimediaSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
RadioFMFM (RDS)
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, DivX, XviDMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivitySamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
USBUSB 3.1 Type-C, USB OTG On-The-GoUSB 2.0 Type-C, USB OTG On-The-Go
TV outputUSB Type-C (reversible)Not supported
Audio output3.5mm jack3.5mm jack
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNASupportedNot supported
NFCSupportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedNot supported
Other functionsSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Barometer
Iris scanner
Heart rate
SpO2
Hall effect
Face unlock
Fingerprint sensor (rear-mounted)
ANT+
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Hall effect
Face unlock
Fingerprint sensor (under display)
ANT+
Other features- 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
- WiFi direct, hotspot
- Colors: Prism, Crush Black, White, Blue, Pink
- One UI 2
- Always On Display
- WiFi direct, hotspot
Power supplySamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
BatteryLi-Ion: Lithium-Ion (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity3000 mAh4000 mAh
Charger, watts15W (9V/1.67A) Fast battery charging
Qi wireless charging (Qi/PMA)
Quick Charge 2
15W Fast battery charging
Talk time autonomy1740 minutes | 29 hours | 1.2 daysfeature not registered
Standby19560 minutes | 326 hours | 13.6 daysfeature not registered
Radiation rateSamsung Galaxy S8 (SM-G9500)Samsung Galaxy A51 (SM-A515F/DS)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registered0.369W/kg (head) | 1.59W/kg (body)
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