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Asus ROG Phone 3 (128GB/12GB) vs Samsung Galaxy S20 Ultra (SM-G988B)

Side by side comparison between Asus ROG Phone 3 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 XAsus ROG Phone 3 (128GB/12GB)08Points
Asus ROG Phone 3 (128GB/12GB)
6.59"
AMOLED

1080x2340

64
MP

24mp

12GB
RAM

64bit Octa

6000
mAh

(Non removable)

vs
21PointsSamsung Galaxy S20 Ultra (SM-G988B)Compare Asus ROG Phone 3 X
Samsung Galaxy S20 Ultra (SM-G988B)
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)

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!

ROG Phone 3 (128GB/12GB)8 Advantages Asus ROG Phone 3 (128GB/12GB)vsGalaxy S20 Ultra (SM-G988B)21 Advantages Samsung Galaxy S20 Ultra (SM-G988B)
+3.09Ghz 64bit Octa-Core6%
More powerful processor, you can open your applications faster
vs2.73Ghz 64bit Octa-Core
+UFS 3.1Advantage
Fastest write and read storage.
vsUFS 3.0
+144Hz20%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
vs120Hz
+1 billion62 times
More colors on the screen is better quality images and videos
vs16 million
+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
vs4G+ LTE-A
+(5G SA/NSA) 5000 Mbps150%
Faster for surfing the internet and download files
vs(4G+ LTE-A) 2000 Mbps
+6000 mAh20%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs5000 mAh
+5.1 + A2DP/LEAdvantage
Bluetooth 5.1 + A2DP/LE is newer and faster
vs5.0 + A2DP/LE
Not supportedvs+Until 1TB microSD, microSDXCAdvantage
More external storage for files using memory cards
240 grams (8.4 ounces)vs+220 grams (7.7 ounces)9%
Lighter
9.85 millimeters (0.39 inches)vs+8.8 millimeters (0.35 inches)12%
Thinner
AMOLEDvs+Dynamic AMOLEDAdvantage
Dynamic AMOLED display is brighter and more vivid
1080x2340 pixelsvs+1440x3200 pixels82%
Higher resolution screen
391 PPIvs+509 PPI30%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.59"vs+6.9"5%
Larger screen
(triple camera) 64MP + 13MP + 5MPvs+(quad camera) 108MP + 48MP + 12MP + 0.3MP105%
Higher resolution main camera
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
EIS: Digital stabilizationvs+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
Not supportedvs+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
1/1.72" inchesvs+1/1.33" inches29%
The larger sensor camera lets you take photos with better depth.
(front) 24MPvs+(front) 40MP68%
Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
Not supportedvs+BarometerAdvantage
Sensors help you use the device
Not supportedvs+ANT+Advantage
Sensors help you use the device
30Wvs+45W50%
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+Qi wireless charging (Qi/PMA)Advantage
Wireless charging is another way to charge the battery.
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
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.
Not supportedvs+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

31 Common items in both devices
12GB LPDDR5
128GB (100GB available) / 128GB (104GB available)
Aluminum frame, glass front/back
HDR10+
LED flash
PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras
HDR photo on both cameras / HDR photo/video on both cameras
+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 differencesClear highlight
Physical featuresAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
ModelROG Phone 3 (128GB/12GB)Galaxy S20 Ultra (SM-G988B)
Other model namesAsus ROG Phone 3 ZS661KS, ZS661KSF (12GB RAM)Galaxy S20 Ultra 4G-LTE SM-G988B (Exynos, 12GB RAM)
Country or region available(Global, International)
(Global, International)
New Zealand
New Zealand
BrandAsusSamsung
Release dateJuly, 2020March, 2020
Depth9.85 millimeters (0.39 inches)8.8 millimeters (0.35 inches)
Size (width x height)78 x 171 millimeters (3.07 x 6.73 in)76 x 166.9 millimeters (2.99 x 6.57 in)
Weight240 grams (8.4 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 othersNot supportedIP68 certified: dust proof and waterproof over 1.5 meter and 30min
System (OS)Asus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
Operating systemAndroid 10Android 10
Firmware updatefeature not registeredfeature not registered
HardwareAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
Chipset64bit - Qualcomm Snapdragon 865+ SM8250 (7nm)64bit - Samsung Exynos 990 (7nm)
CPU processorOcta-Core, 3 processors:
3.09Ghz Single-Core Kryo 585
2.42Ghz 3-Cores Kryo 585
1.8Ghz Quad-Core Kryo 585
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 650ARM Mali-G77 MP11
RAM memory12GB LPDDR512GB LPDDR5
Internal storage128GB (100GB available)
UFS 3.1
128GB (104GB available)
UFS 3.0
External storageNot supportedUntil 1TB microSD, microSDXC
(dedicated slot)
DisplayAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
Display typeAMOLEDDynamic AMOLED
Screen size6.59" inches6.9" inches
Screen-to-body ratio~79.9% (screen-to-body ratio)~90.6% (screen-to-body ratio)
Display resolution1080x2340 pixels (19.5:9)1440x3200 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch 10-points
Pixel density (dot pitch)391 PPI509 PPI
Colors1 billion16 million
Scratch-resistant glassGorilla Glass 6Gorilla Glass 6
Display features144Hz, 650 nits, HDR10+120Hz, HDR10+
Mobile networksAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
nano-SIM (4FF) + e-SIM
Maximum download/upload5000/150 Mbps2000/200 Mbps
Network technology2G, 3G, 4G, 5G2G, 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 1xEV-DO
TD-SCDMA 1900/2000
UMTS 800/850/900/1700/1900/2100
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat20
VoLTE

A version:
LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 66, 71)
TD-LTE (34, 38, 39, 40, 41, 42, 48)

B version:
LTE (1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (34, 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 networkA version:
SA/NSA (1, 2, 3, 5, 28, 41, 66, 71, 77, 78, 79)

B version:
SA/NSA (41, 77, 78, 79)
Not 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-A, 5G SA/NSAGPRS, 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
CallingAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
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
CameraAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
Back camera (main camera)(triple camera)
64 megapixels
13MP ultrawidef/2.4125º11mm
5MP macrof/2.0
(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 resolution10120x6328 pixels12000x9000 pixels
Video recording (primary)8K UHD (7680x4320) 30 fps8K UHD (7680x4320) 24 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length26mm lens26mm lens
Sensor size1/1.72" inches1/1.33" inches
Pixel size0.8µm pixel0.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus on both cameras
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomDigital and optical zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo on both camerasHDR photo/video on both cameras
2ª cameraAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
Front camera (secondary)24 megapixels40 megapixels
Front camera resolution5632x4224 pixels7296x5472 pixels
Video recording (secondary)Full HD (1920x1080)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.2 (aperture)
Focal length27mm lens26mm lens
Sensor sizefeature not registeredfeature not registered
Pixel size0.9µm pixel0.7µm pixel
MultimediaAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
RadioNot supportedNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivityAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
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 outputType-C jack with 3.5mm jack adapterType-C reversible connector
Bluetooth5.1 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) + MIMO802.11 a/b/g/n/ac/ax (2.4Ghz, 5Ghz) + MIMO
DLNANot supportedSupported
NFCSupportedSupported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, QZSSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedNot supported
Other functionsAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Gesture
Hall effect
Face unlock
Fingerprint sensor (under display)
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Barometer
Gesture
Hall effect
Face unlock
Fingerprint sensor (under display)
ANT+
Other features- Colors: Black glare
- ROG UI (Republic Of Gamers)
- Always-On display
- DTS:X stereo speakers (2 amplifiers)
- 24-bit/192kHz audio
- AeroActive Cooler 3
- 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 supplyAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
BatteryLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity6000 mAh5000 mAh
Charger, watts30W Fast battery charging
10W Reverse charging USB between devices
Quick Charge 3/4
USB Power Delivery 3.0
45W Fast battery charging
15W Qi wireless charging (Qi/PMA)
9W Reverse wireless charging between devices
USB Power Delivery 3.0
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered
Radiation rateAsus ROG Phone 3 (128GB/12GB)Samsung Galaxy S20 Ultra (SM-G988B)
SAR 1.6W/kg (USA, Mexico, etc.)0.74W/kg (head) | 1.5W/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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