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Samsung Galaxy S8 Plus (SM-G955U) vs Samsung Galaxy S20 Ultra (SM-G988B/DS)

Side by side comparison between Samsung Galaxy S8 Plus vs Samsung Galaxy S20 Ultra phones, differences, pros, cons with full specifications. What's the better?

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Compare Samsung Galaxy S20 Ultra XSamsung Galaxy S8 Plus (SM-G955U)09Points
Samsung Galaxy S8 Plus (SM-G955U)
6.2"
AMOLED

1440x2960

12.2
MP

8mp

4GB
RAM

64bit Octa

3500
mAh

(Non removable)

vs
21PointsSamsung Galaxy S20 Ultra (SM-G988B/DS)Compare Samsung Galaxy S8 Plus X
Samsung Galaxy S20 Ultra (SM-G988B/DS)
6.9"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

64bit Octa

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S20 Ultra (SM-G988B/DS)

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-G955U)9 Advantages Samsung Galaxy S8 Plus (SM-G955U)vsGalaxy S20 Ultra (SM-G988B/DS)21 Advantages Samsung Galaxy S20 Ultra (SM-G988B/DS)
+173 grams (6.06 ounces)27%
Lighter
vs220 grams (7.7 ounces)
+8.1 millimeters (0.32 inches)9%
Thinner
vs8.8 millimeters (0.35 inches)
+531 PPI4%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs509 PPI
+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)
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+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
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
2.35Ghz 64bit Octa-Corevs+2.73Ghz 64bit Octa-Core15%
More powerful processor, you can open your applications faster
4GB LPDDR4vs+12GB LPDDR52 times
More RAM memory. Typically more responsive and better for multitasking.
64GB (51GB available)vs+128GB (104GB available)104%
More internal storage for applications and files
UFS 2.0vs+UFS 3.0Advantage
Fastest write and read storage.
HDR10vs+HDR10+Advantage
The HDR10+ display provides vibrant colors and more details
60Hzvs+120Hz100%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1440x2960 pixelsvs+1440x3200 pixels8%
Higher resolution screen
6.2"vs+6.9"11%
Larger screen
(back) 12.2MPvs+(quad camera) 108MP + 48MP + 12MP + 0.3MP13 times
Higher resolution main camera
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
1/2.55" inchesvs+1/1.33" inches92%
The larger sensor camera lets you take photos with better depth.
(front) 8MPvs+(front) 40MP4 times
Higher resolution secondary camera to take pictures and selfies
4K UHD (3840x2160)vs+8K UHD (7680x4320)3 times
More image quality for recording videos with the primary camera
(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
(4G+ LTE-A) 1024 Mbpsvs+(4G+ LTE-A) 2000 Mbps95%
Faster for surfing the internet and download files
3500 mAhvs+5000 mAh43%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
15Wvs+45W2 times
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.
1 slot (Single-SIM)
(dedicated slot)
vs+2 slots (Dual-SIM) + e-SIM (Eletronic)
(hybrid slot/shares the same microSD slot)Advantage
It's more advantageous to have more than one phone operator in the same device
802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMOvs+802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + MIMO is newer and faster
USB 3.1 Type-C, USB OTG On-The-Govs+USB 3.2 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.

34 Common items in both devices
Until 1TB microSD, microSDXC
Aluminum frame, glass front/back
Super AMOLED / Dynamic AMOLED
16 million
LED flash
PDAF on back camera and autofocus front camera / PDAF: phase detection autofocus on both cameras
OIS: Optical stabilization
+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 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
ModelGalaxy S8 Plus (SM-G955U)Galaxy S20 Ultra (SM-G988B/DS)
Other model namesGalaxy S8+ G955U Unlocked (Snapdragon), Samsung Dream 2Galaxy S20 Ultra 4G-LTE SM-G988B/Dual-Sim (Exynos, 12GB RAM)
Country or region availableUSA
USA
(Global, International)
(Global, International)
BrandSamsungSamsung
Release dateApril, 2017March, 2020
Depth8.1 millimeters (0.32 inches)8.8 millimeters (0.35 inches)
Size (width x height)73.4 x 160 millimeters (2.89 x 6.3 in)76 x 166.9 millimeters (2.99 x 6.57 in)
Weight173 grams (6.06 ounces)220 grams (7.7 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsAluminum frame, glass front/backAluminum frame, glass front/back
Protection against water and othersIP68 certified: dust proof and waterproof over 1.5 meter and 30minIP68 certified: dust proof and waterproof over 1.5 meter and 30min
System (OS)Samsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
Operating systemAndroid 7.0 NougatAndroid 10
Firmware updateAndroid 9.0 Piefeature not registered
HardwareSamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
Chipset64bit - Qualcomm Snapdragon 835 MSM8998 (10nm)64bit - Samsung Exynos 990 (7nm)
CPU processorOcta-Core, 2 processors:
2.35Ghz Quad-Core Kryo
1.9Ghz Quad-Core Kryo
Octa-Core, 3 processors:
2.73Ghz Dual-Core Mongoose M5
2.5Ghz Dual-Core ARM Cortex-A76
2Ghz Quad-Core ARM Cortex-A55
GPU graphical controllerQualcomm Adreno 540ARM Mali-G77 MP11
RAM memory4GB LPDDR412GB LPDDR5
Internal storage64GB (51GB available)
UFS 2.0
128GB (104GB available)
UFS 3.0
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
Until 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
DisplaySamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
Display typeSuper AMOLEDDynamic AMOLED
Screen size6.2" inches6.9" inches
Screen-to-body ratio~83.1% (screen-to-body ratio)~90.6% (screen-to-body ratio)
Display resolution1440x2960 pixels (18.5:9)1440x3200 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch 10-points
Pixel density (dot pitch)531 PPI509 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 5Gorilla Glass 6
Display features60Hz, HDR10120Hz, HDR10+
Mobile networksSamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
Dual-SIMNot supportedDual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
SIM card1 slot (Single-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF) + e-SIM
Maximum download/upload1024/150 Mbps2000/200 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 800/1900, GSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
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 Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66)
TD-LTE (38, 39, 40, 41)
VoLTE
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkNot supportedGSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedGPRS, EDGE
CallingSamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/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, Voice commands
CameraSamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
Back camera (main camera)12.2 megapixels(quad camera)
108 megapixels
48MP periscope telephotof/3.5103mm1/2.0"0.8µmPDAFOIS4x-optical-zoom10x-hybrid-zoom
12MP ultrawidef/2.213mm1.4µmSuper-Steady-video
0.3MP TOF 3Df/1.0
Main camera resolution4032x3024 pixels12000x9000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps8K UHD (7680x4320) 24 fps
FlashLED flashLED flash
Focal aperturef/1.7 (aperture)f/1.8 (aperture)
Focal length26mm lens26mm lens
Sensor size1/2.55" inches1/1.33" inches
Pixel size1.4µm pixel0.8µm pixel
AutofocusPDAF on back camera and autofocus front cameraPDAF: phase detection autofocus on both cameras
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationOIS: Optical stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedSupported
HDRHDR photo/video on both camerasHDR photo/video on both cameras
2ª cameraSamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
Front camera (secondary)8 megapixels40 megapixels
Front camera resolution3264x2448 pixels7296x5472 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" inchesfeature not registered
Pixel size1.22µm pixel0.7µm pixel
MultimediaSamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
RadioFMNot supported
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 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
USBUSB 3.1 Type-C, USB OTG On-The-GoUSB 3.2 Type-C, USB OTG On-The-Go
TV outputUSB Type-C (reversible)USB Type-C (reversible)
Audio output3.5mm jackType-C reversible connector
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) Wifi6 + MIMO
DLNASupportedSupported
NFCSupportedSupported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedNot supported
Other functionsSamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/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
Barometer
Gesture
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: Cosmic Black, Cosmic Grey, Cloud White
- Ultrasonic fingerprint sensor
- One UI 2
- Always-on display
- 32-bit/384kHz audio
- Dolby Atmos/AKG sound
- Bixby
- Samsung DeX
- Samsung Pay (MST, NFC)
- WiFi direct, hotspot
Power supplySamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
BatteryLi-Ion: Lithium-Ion (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity3500 mAh5000 mAh
Charger, watts15W (9V/1.67A) Fast battery charging
Qi wireless charging (Qi/PMA)
Quick Charge 2
45W Fast battery charging
15W Qi wireless charging (Qi/PMA)
9W Reverse wireless charging between devices
USB Power Delivery 3.0
Talk time autonomy2040 minutes | 34 hours | 1.4 daysfeature not registered
Standby20580 minutes | 343 hours | 14.3 daysfeature not registered
Radiation rateSamsung Galaxy S8 Plus (SM-G955U)Samsung Galaxy S20 Ultra (SM-G988B/DS)
SAR 1.6W/kg (USA, Mexico, etc.)0.46W/kg (head) | 1.01W/kg (body)0.74W/kg (head) | 1.12W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered0.319W/kg (head) | 1.557W/kg (body)
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