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Side by side comparison between Galaxy S21 Ultra (SM-G998B/DS 128GB) vs Galaxy S21 Ultra (SM-G998U1 128GB) phones, differences, pros, cons and full specifications. What's the better?

11/14/2021 5:10 PM, updated: 9/27/2024 2:43 AM Compare Samsung Galaxy S21 Ultra X Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB) 00Point Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB) Specifications Compare Models Pictures 6.8"AMOLED

1440x3200

108MP

40mp

12GBRAM

Octa-core

5000mAh

(Non removable)

vs 01Point Samsung Galaxy S21 Ultra (SM-G998U1 128GB) Compare Samsung Galaxy S21 Ultra X Samsung Galaxy S21 Ultra (SM-G998U1 128GB) Specifications Compare Models Pictures 6.8"AMOLED

1440x3200

108MP

40mp

12GBRAM

Octa-core

5000mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998U1 128GB)

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 S21 Ultra (SM-G998B/DS 128GB)} 0 Advantage Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB) vs Galaxy S21 Ultra (SM-G998U1 128GB)} 1 Advantage Samsung Galaxy S21 Ultra (SM-G998U1 128GB)
2.9GHz 64bit Octa-core (5nm)vs+2.84GHz 64bit Octa-core (5nm)5%More powerful processor, you can open your applications faster
60 Common items in both devices
12GB LPDDR5
128GB (101GB available)
UFS 3.1
227 grams (7.95 ounces)
8.9 millimeters (0.35 inches)
Aluminum frame, glass front/back
Dynamic AMOLED
+53 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 S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
Change model↓ Change model of Galaxy S21 UltraSM-G998B 128GBSM-G998B 256GBSM-G998B 512GBSM-G998B/DS 256GBSM-G998B/DS 512GBSM-G998N 256GBSM-G998N 512GBSM-G998U1 256GBSM-G998U1 512GBSM-G998W 128GBSM-G998W 256GBChoose the model↓ Change model of Galaxy S21 UltraSM-G998B 128GBSM-G998B 256GBSM-G998B 512GBSM-G998B/DS 256GBSM-G998B/DS 512GBSM-G998N 256GBSM-G998N 512GBSM-G998U1 256GBSM-G998U1 512GBSM-G998W 128GBSM-G998W 256GB
ModelGalaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
Other model namesGalaxy S21 Ultra 5G (SM-G998B/Dual-SIM)Galaxy S21 Ultra 5G (SM-G998U1) Unlocked
Country or region available(Global, International)(Global, International)USAUSA
BrandSamsungSamsung
Release date1/29/2021, Announced: 1/14/20211/29/2021, Announced: 1/14/2021
Depth8.9 millimeters (0.35 inches)8.9 millimeters (0.35 inches)
Size (width x height)75.6 x 165.1 millimeters (2.98 x 6.5 in)75.6 x 165.1 millimeters (2.98 x 6.5 in)
Weight227 grams (7.95 ounces)227 grams (7.95 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-resistantIP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant

📲 Display

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
Display typeDynamic AMOLEDDynamic AMOLED
Screen size6.8" inches6.8" inches
Screen-to-body ratio~89.4% (screen-to-body ratio)~89.4% (screen-to-body ratio)
Display resolution1440x3200 pixels (20:9)1440x3200 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch 10-points
Pixel density (dot pitch)516 PPI516 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass VictusGorilla Glass Victus
Refresh rate120Hz120Hz
Display features1500nits[peak]HDR10+Always-On Display1500nits[peak]HDR10+Always-On Display

🤖 Operating System

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
System versionAndroid 11Android 11
Firmware updateAndroid 14Android 14
User InterfaceOne UI 3.1 / 4.1 / 5.1 / 6.0One UI 3.1 / 4.1 / 5.1 / 6.0

⚙️ Processor

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
Chipset64bit: Samsung Exynos 2100 (5nm)64bit: Qualcomm Snapdragon 888 (SM8350) (5nm)
CPUOcta-core, 3 processors:1x 2.9GHz ARM Cortex-X1 (Single-core)3x 2.8GHz ARM Cortex-A78 (Triple-core)4x 2.2GHz ARM Cortex-A55 (Quad-core)Octa-core, 3 processors:1x 2.84GHz Kryo 680 (Single-core)3x 2.42GHz Kryo 680 (Triple-core)4x 1.8GHz Kryo 680 (Quad-core)
GPU graphical controllerARM Mali-G78 MP14 (854MHz)Qualcomm Adreno 660 (840MHz)
Performance (benchmark)AnTuTu: 657150 (v8), 727634 (v9)Geekbench: 3457 (v5.2)GFXBench: 51fps (ES 3.1 onscreen)AnTuTu: 681099 (v8), 809165 (v9)Geekbench: 3539 (v5.2)GFXBench: 54fps (ES 3.1 onscreen)

💽 Memory and storage

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
RAM memory12GB LPDDR512GB LPDDR5
Internal storage128GB (101GB available)UFS 3.1128GB (101GB available)UFS 3.1
External storageNot supportedNot supported

📶 Mobile networks

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
SIM card2 slots (Dual-SIM)nano-SIM (4FF) + e-SIM1 slot (Single-SIM)nano-SIM (4FF) + e-SIM
Maximum Download / Upload5000/1920 Mbps5000/1920 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 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100CDMA2000 1xEV-DOUMTS 850/900/1700/1900/2100
Primary 4G networkLTE 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)VoLTELTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71)TD-LTE (38, 39, 40, 41, 46, 48)VoLTE
Primary 5G networkSA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)SA/NSA/Sub6 (2, 5, 25, 41, 66, 71)mmWave (260, 261)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSAGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
Secondary 2G networkGSM 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Secondary 3G networkUMTS 850/900/1700/1900/2100CDMA2000 1xEV-DOUMTS 850/900/1700/1900/2100
Secondary 4G networkLTE 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)VoLTELTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71)TD-LTE (38, 39, 40, 41, 46, 48)VoLTE
Secondary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSAGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6

📷 Camera

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
Back camera (main camera)(quad camera)108 megapixels10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video(quad camera)108 megapixels10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video
Main camera resolution12000x9000 pixels12000x9000 pixels
Video recording (primary)8K UHD (7680x4320) 24 fps8K UHD (7680x4320) 24 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length26mm (lens)26mm (lens)
Sensor size1/1.33" inches1/1.33" inches
Pixel size1.8µm pixel1.8µm pixel
AutofocusPDAF: phase detection autofocus on both camerasPDAF: phase detection autofocus on both cameras
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationOIS: Optical stabilization
ZoomDigital and optical 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
Camera extras4K@60fps1080p@240fps720p@960fps4K@60fps1080p@240fps720p@960fps

📸 Front camera

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
Front camera (secondary)40 megapixels40 megapixels
Front camera resolution7296x5472 pixels7296x5472 pixels
Video recording (secondary)4K UHD (3840x2160)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.2 (aperture)
Focal length26mm (lens)26mm (lens)
Sensor size1/2.8" inches1/2.8" inches
Pixel size0.7µm pixel0.7µm pixel

🔉 Sound and multimedia

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
LoudspeakerStereo sound32-bit/384kHzDolby AtmosTuned by AKGStereo sound32-bit/384kHzDolby AtmosTuned by AKG
Active noise cancellation3 microphones3 microphones
RadioFMFM
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 S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
USBUSB 3.2 Type-C, USB OTG On-The-GoUSB 3.2 Type-C, USB OTG On-The-Go
Audio outputType-C reversible connectorType-C reversible connector
TV outputUSB Type-C (reversible)USB Type-C (reversible)
Bluetooth5.2 + A2DP/LE5.2 + A2DP/LE
WiFi802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMOWiFi Direct, hotspot802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMOWiFi Direct, hotspot
DLNASupportedSupported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
SensorsAccelerometerAmbient light sensorBarometerCompassFace unlockFingerprint sensor (under display)GestureGyroscopeHall effectProximity sensorUWB (Ultra Wideband)AccelerometerAmbient light sensorBarometerCompassFace unlockFingerprint sensor (under display)GestureGyroscopeHall effectProximity sensorUWB (Ultra Wideband)
Vibrating alertSupportedSupported

🔋 Battery

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity5000 mAh5000 mAh
Charger, watts25W Wired fast charging USB Power Delivery 3.025W Wired fast charging USB Power Delivery 3.0
Inductive / wireless charging15W Qi wireless charging (Qi/PMA)4.5W Reverse wireless charging15W Qi wireless charging (Qi/PMA)4.5W Reverse wireless charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 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: Phantom Black, Silver, Titanium, Navy, Brown• Samsung Pay (Visa, MasterCard)• Samsung DeX• Stylus pen support• Colors: Phantom Black, Silver, Titanium, Navy, Brown• Samsung Pay (Visa, MasterCard)• Samsung DeX• Stylus pen support

☢️ Radiation rate

Galaxy S21 Ultra (SM-G998B/DS 128GB)Galaxy S21 Ultra (SM-G998U1 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.24W/kg (head), 0.72W/kg (body)0.77W/kg (head), 1.02W/kg (body)
SAR 2W/kg (Europe, UK, etc.)0.714W/kg (head), 1.58W/kg (body)feature not registered
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