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Samsung Galaxy S20 Ultra 5G (SM-G988U) vs Samsung Galaxy M55s (SM-M558B/DS 128GB)

Side by side comparison between Samsung Galaxy S20 Ultra 5G vs Samsung Galaxy M55s phones, differences, pros, cons and full specifications. What's the better?

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Compare Samsung Galaxy M55s X Samsung Galaxy S20 Ultra 5G (SM-G988U) 21Points
6.9"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

vs
06Points Samsung Galaxy M55s (SM-M558B/DS 128GB) Compare Samsung Galaxy S20 Ultra 5G X
6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S20 Ultra 5G (SM-G988U)

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 S20 Ultra 5G (SM-G988U)} 21 Advantages Samsung Galaxy S20 Ultra 5G (SM-G988U) vs Galaxy M55s (SM-M558B/DS 128GB)} 6 Advantages Samsung Galaxy M55s (SM-M558B/DS 128GB)
+12GB LPDDR550%
More RAM memory. Typically more responsive and better for multitasking.
vs8GB LPDDR4X
+UFS 3.0Advantage
Fastest write and read storage.
vsUFS 2.2
+Aluminum frame, glass front/backAdvantage
More resistant material
vsPlastic body, glass front
+HDR10+Advantage
The HDR10+ display provides vibrant colors and more details
vsNot supported
+1440x3200 pixels78%
Higher resolution screen
vs1080x2400 pixels
+509 PPI30%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs393 PPI
+6.9"3%
Larger screen
vs6.7"
+(quad camera) 108MP + 48MP + 12MP + 0.3MP181%
Higher resolution main camera
vs(triple camera) 50MP + 8MP + 2MP
+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
vsOnly digital zoom
+1/1.33" inches17%
The larger sensor camera lets you take photos with better depth.
vs1/1.56" inches
+8K UHD (7680x4320)3 times
More image quality for recording videos with the primary camera
vs4K UHD (3840x2160)
+(5G Sub6) 5000 Mbps67%
Faster for surfing the internet and download files
vs(5G Sub6) 3000 Mbps
+ANT+Advantage
Sensors help you use the device
vsNot supported
+BarometerAdvantage
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
+1 slot (Single-SIM) + e-SIM (Eletronic)
(dedicated slot)Advantage
You can have more mobile carriers/operators on the same device.
vs2 slots (Dual-SIM)
(hybrid slot/shares the same microSD slot)
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
vsNot supported
+USB 3.2 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
+Gorilla Glass 6Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
2.84GHz 64bit Octa-core (7nm)vs+2.4GHz 64bit Octa-core (4nm)2%
More powerful processor, you can open your applications faster
222 grams (7.77 ounces)vs+180 grams (6.3 ounces)23%
Lighter
8.8 millimeters (0.35 inches)vs+7.8 millimeters (0.31 inches)13%
Thinner
(front) 40MPvs+(front) 50MP25%
Higher resolution secondary camera to take pictures and selfies
Android 13vs+Android 15Advantage
Android 15 is newer and safer
5.0 + A2DP/LEvs+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + A2DP/LE is newer and faster

35 Common items in both devices
128GB (104GB available) / 128GB (105GB available)
Until 1TB microSD, microSDXC
Dynamic AMOLED / Super AMOLED
120Hz
16 million
LED flash
PDAF: phase detection autofocus on both cameras / PDAF: phase detection autofocus
+28 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 S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
ModelGalaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
Other model namesGalaxy S20 Ultra 5G (Snapdragon, 12GB RAM) - US CarriersGalaxy M55s 5G SM-M558B/Dual-SIM
Country or region availableUSA
USA
BangladeshIndia
Bangladesh, India
BrandSamsungSamsung
Release date3/6/2020, Announced: 2/11/20209/26/2024, Announced: 9/24/2024
Depth8.8 millimeters (0.35 inches)7.8 millimeters (0.31 inches)
Size (width x height)76 x 166.9 millimeters (2.99 x 6.57 in)76.5 x 163.9 millimeters (3.01 x 6.45 in)
Weight222 grams (7.77 ounces)180 grams (6.3 ounces)
Build, materialsAluminum frame, glass front/backPlastic body, glass front
Protection against water and othersIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistantNot supported

📲 Display

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
Display typeDynamic AMOLEDSuper AMOLED
Screen size6.9" inches6.7" inches
Screen-to-body ratio~90.6% (screen-to-body ratio)~86.4% (screen-to-body ratio)
Display resolution1440x3200 pixels (20:9)1080x2400 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch 10-points
Pixel density (dot pitch)509 PPI393 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 6Not supported
Refresh rate120Hz120Hz
Display featuresHDR10+
Always-On Display
120Hz@FHD
60Hz@QHD
Always-On Display

🤖 Operating System

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
System versionAndroid 10Android 14
Firmware updateAndroid 13Android 15
User InterfaceOne UI 2.5 / 3.1 / 4.1 / 5.0One UI 6.1 / 7.0

⚙️ Processor

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
Chipset64bit: Qualcomm Snapdragon 865 (SM8250) (7nm)64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)
CPUOcta-core, 3 processors:
1x 2.84GHz Kryo 585 (Single-core)
3x 2.42GHz Kryo 585 (Triple-core)
4x 1.8GHz Kryo 585 (Quad-core)
Octa-core, 3 processors:
1x 2.4GHz ARM Cortex-A710 (Single-core)
3x 2.36GHz ARM Cortex-A710 (Triple-core)
4x 1.8GHz ARM Cortex-A510 (Quad-core)
GPU graphical controllerQualcomm Adreno 650 (250-587MHz)Qualcomm Adreno 644 (443MHz)
Performance (benchmark)AnTuTu: 415976 (v7), 514485 (v8)
Geekbench: 12191 (v4.4), 2697 (v5.1)
GFXBench: 21fps (ES 3.1 onscreen)
AnTuTu: 582102 (v10)

💽 Memory and storage

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
RAM memory12GB LPDDR58GB LPDDR4X
Internal storage128GB (104GB available)
UFS 3.0
128GB (105GB available)
UFS 2.2
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
Until 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)

📶 Mobile networks

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Dual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
SIM card1 slot (Single-SIM)
nano-SIM (4FF) + e-SIM
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload5000/1024 Mbps3000/1024 Mbps
Network technology2G, 3G, 4G, 5G2G, 3G, 4G, 5G
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 850/900/1700/1900/2100
Primary 4G networkLTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71)
TD-LTE (38, 39, 40, 41, 46, 48)
VoLTE
LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
Primary 5G networkSA/NSA/Sub6 (2, 5, 41, 66, 71)
mmWave (260, 261)
SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkUMTS 850/900/1700/1900/2100UMTS 850/900/1700/1900/2100
Secondary 4G networkLTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71)
TD-LTE (38, 39, 40, 41, 46, 48)
VoLTE
LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
Secondary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6

📷 Camera

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
Back camera (main camera)(quad camera)
108 megapixels
48MP periscope telephoto f/3.5103mm1/2.0"0.8µmPDAFOIS4x-optical-zoom10x-hybrid-zoom
12MP ultrawide f/2.213mm1.4µmSuper-Steady-video
0.3MP TOF 3D f/1.0
(triple camera)
50 megapixels
8MP ultrawide f/2.2123°
2MP macro f/2.4
Main camera resolution12000x9000 pixels8160x6120 pixels
Video recording (primary)8K UHD (7680x4320) 24 fps4K UHD (3840x2160) 30 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length26mm (lens)feature not registered
Sensor size1/1.33" inches1/1.56" inches
Pixel size0.8µm pixel1µm pixel
AutofocusPDAF: phase detection autofocus on both camerasPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationOIS: Optical stabilization
ZoomDigital and optical zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedSupported
HDRHDR photo/video on both camerasHDR photo on both cameras
Camera extras4K@60fps
1080p@240fps
720p@960fps
4K@30fps
1080p@30/60fps
720p@240fps (slow motion)

📸 Front camera

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
Front camera (secondary)40 megapixels50 megapixels
Front camera resolution7296x5472 pixels8160x6120 pixels
Video recording (secondary)4K UHD (3840x2160)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.4 (aperture)
Focal length26mm (lens)feature not registered
Sensor sizefeature not registeredfeature not registered
Pixel size0.7µm pixelfeature not registered

🔉 Sound and multimedia

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
LoudspeakerStereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG
Stereo sound
Active noise cancellation2 microphones2 microphones
RadioFMNot 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

🔌 Connectivity

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
USBUSB 3.2 Type-C, USB OTG On-The-GoUSB 2.0 Type-C, USB OTG On-The-Go
Audio outputType-C reversible connectorType-C reversible connector
TV outputUSB Type-C (reversible)USB Type-C (reversible)
Bluetooth5.0 + A2DP/LE5.2 + A2DP/LE
WiFi802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNASupportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
SensorsAccelerometer
Ambient light sensor
ANT+
Barometer
Compass
Face unlock
Fingerprint sensor (under display)
Gesture
Gyroscope
Hall effect
Proximity sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
Battery typeLiPo: li-ion polymer (Non removable)Li-Ion: lithium-ion (Non removable)
Battery capacity5000 mAh5000 mAh
Charger, watts45W Wired fast charging
USB Power Delivery 3.0
45W Wired fast charging
Inductive / wireless charging15W Qi wireless charging (Qi/PMA)
9W Reverse wireless charging
Not supported
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
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: Cosmic Black, Cosmic Grey, Cloud White
• Ultrasonic fingerprint sensor
• Bixby
• Samsung DeX
• Samsung Pay (MST, NFC)
• Colors: Thunder Black, Coral Green

☢️ Radiation rate

Galaxy S20 Ultra 5G (SM-G988U)Galaxy M55s (SM-M558B/DS 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.94W/kg (head), 0.95W/kg (body)0.93W/kg (head)
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
X

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