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Samsung Galaxy S21 Ultra (SM-G998U1 128GB) vs Xiaomi 11T (128GB)

Side by side comparison between Samsung Galaxy S21 Ultra vs Xiaomi 11T phones, differences, pros, cons and full specifications. What's the better?

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Compare Xiaomi 11T XSamsung Galaxy S21 Ultra (SM-G998U1 128GB)22Points
Samsung Galaxy S21 Ultra (SM-G998U1 128GB)
6.8"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

64bit Octa

5000
mAh

(Non removable)

vs
Xiaomi 11T (128GB)
6.67"
AMOLED

1080x2400

108
MP

16mp

8GB
RAM

64bit Octa

5000
mAh

(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-G998U1 128GB)22 Advantages Samsung Galaxy S21 Ultra (SM-G998U1 128GB)vs11T (128GB)5 Advantages Xiaomi 11T (128GB)
+2.84GHz 64bit Octa-Core7%
More powerful processor, you can open your applications faster
vs3GHz 64bit Octa-Core
+12GB LPDDR550%
More RAM memory. Typically more responsive and better for multitasking.
vs8GB LPDDR4X
+Dynamic AMOLEDAdvantage
Dynamic AMOLED display is brighter and more vivid
vsAMOLED
+1440x3200 pixels78%
Higher resolution screen
vs1080x2400 pixels
+516 PPI31%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs395 PPI
+6.8"2%
Larger screen
vs6.67"
+(quad camera) 108MP + 10MP + 10MP + 12MP16%
Higher resolution main camera
vs(triple camera) 108MP + 8MP + 5MP
+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
vsOnly digital zoom
+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
vsEIS: Digital stabilization
+1/1.33" inches14%
The larger sensor camera lets you take photos with better depth.
vs1/1.52" inches
+(front) 40MP151%
Higher resolution secondary camera to take pictures and selfies
vs(front) 16MP
+8K UHD (7680x4320)3 times
More image quality for recording videos with the primary camera
vs4K UHD (3840x2160)
+Android 12Advantage
Android 12 is newer and safer
vsAndroid 11
+5G NRAdvantage
The 5G NR network is newer and faster
vs5G SA/NSA
+(5G NR) 5000 Mbps150%
Faster for surfing the internet and download files
vs(5G SA/NSA) 2000 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
+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
+IP68 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsIP53 certified
227 grams (7.95 ounces)vs+203 grams (7.11 ounces)12%
Lighter
8.9 millimeters (0.35 inches)vs+8.8 millimeters (0.35 inches)1%
Thinner
16 millionvs+1 billion62 times
More colors on the screen is better quality images and videos
LED flashvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
25Wvs+67W168%
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.

34 Common items in both devices
128GB (101GB available) / 128GB (103GB available)
UFS 3.1
Aluminum frame, glass front/back
HDR10+
120Hz
PDAF: phase detection autofocus on both cameras / PDAF: phase detection autofocus
BSI sensor
+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

📱 Model features

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
ModelGalaxy S21 Ultra (SM-G998U1 128GB)11T (128GB)
Other model namesGalaxy S21 Ultra 5G (SM-G998U1) UnlockedXiaomi 11T 5G (21081111RG)
Country or region availableUSA
USA
(Global, International)
(Global, International)
BrandSamsungXiaomi
Release date1/29/2021, Announced: 1/14/202110/5/2021, Announced: 9/15/2021
Depth8.9 millimeters (0.35 inches)8.8 millimeters (0.35 inches)
Size (width x height)75.6 x 165.1 millimeters (2.98 x 6.5 in)76.9 x 164.1 millimeters (3.03 x 6.46 in)
Weight227 grams (7.95 ounces)203 grams (7.11 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-resistantIP53 certified: protection against dust and splashing

🤖 Operating System

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
System versionAndroid 11Android 11
Firmware updateAndroid 12feature not registered
User InterfaceOne UI 3.1 / 4.0MIUI 12.5

⚙️ Processor

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
Chipset64bit - Qualcomm Snapdragon 888 (SM8350) (5nm)64bit - MediaTek Dimensity 1200 (MT6893) (6nm)
CPUOcta-Core, 3 processors:
2.84GHz Single-Core Kryo 680
2.42GHz Triple-Core Kryo 680
1.8GHz Quad-Core Kryo 680
Octa-Core, 3 processors:
3GHz Single-Core ARM Cortex-A78
2.6GHz Triple-Core ARM Cortex-A78
2GHz Quad-Core ARM Cortex-A55
GPU graphical controllerQualcomm Adreno 660 (840MHz)ARM Mali-G77 MC9 (886MHz)
Performance (benchmark)AnTuTu: 681099 (v8), 809165 (v9)
Geekbench: 3539 (v5.2)
GFXBench: 54fps (ES 3.1 onscreen)
AnTuTu: 590837 (v9)
Geekbench: 2834 (v5.1)
GFXBench: 40fps (ES 3.1 onscreen)

💽 Memory and storage

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
RAM memory12GB LPDDR58GB LPDDR4X
Internal storage128GB (101GB available)
UFS 3.1
128GB (103GB available)
UFS 3.1
External storageNot supportedNot supported

📲 Display

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
Display typeDynamic AMOLEDAMOLED
Screen size6.8" inches6.67" inches
Screen-to-body ratio~89.4% (screen-to-body ratio)~85.1% (screen-to-body ratio)
Display resolution1440x3200 pixels (20:9)1080x2400 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)516 PPI395 PPI
Colors16 million1 billion
Scratch-resistant glassGorilla Glass VictusGorilla Glass Victus
Display features120Hz, 1500nits[peak]
HDR10+
Always-On Display
120Hz, 800nits[typ], 1000nits[peak]
HDR10+

📶 Mobile networks

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
SIM card1 slot (Single-SIM)
nano-SIM (4FF) + e-SIM
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload5000/1920 Mbps2000/1024 Mbps
Network technology2G, 3G, 4G, 5G2G, 3G, 4G, 5G
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 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
LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66)
TD-LTE (38, 40, 41, 42)
VoLTE
Primary 5G networkSA/NSA/Sub6 (2, 5, 25, 41, 66, 71)
mmWave (260, 261)
SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA, 5G NRGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA
Secondary 2G networkCDMA 800/1900, GSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkCDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
UMTS 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, 30, 66, 71)
TD-LTE (38, 39, 40, 41, 46, 48)
VoLTE
LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 66)
TD-LTE (38, 40, 41, 42)
VoLTE
Secondary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA, 5G NRGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A

📷 Camera

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
Back camera (main camera)(quad camera)
108 megapixels
10MP periscope telephotof/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom
10MP telephotof/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom
12MP ultrawidef/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video
(triple camera)
108 megapixels
8MP ultrawidef/2.2120°1/4"1.12µm
5MP telephoto macrof/2.450mm1/5"1.12µmAF
Main camera resolution12000x9000 pixels12000x9000 pixels
Video recording (primary)8K UHD (7680x4320) 24 fps4K UHD (3840x2160) 30 fps
FlashLED flashDual-LED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length26mm lens26mm lens
Sensor size1/1.33" inches1/1.52" inches
Pixel size1.8µm pixel0.7µm pixel
AutofocusPDAF: phase detection autofocus on both camerasPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS: Optical stabilizationEIS: Digital 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
1080p@120fps

📸 Front camera

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
Front camera (secondary)40 megapixels16 megapixels
Front camera resolution7296x5472 pixels4608x3456 pixels
Video recording (secondary)4K UHD (3840x2160)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.5 (aperture)
Focal length26mm lensfeature not registered
Sensor size1/2.8" inches1/3.06" inches
Pixel size0.7µm pixel1µm pixel

🔉 Sound and multimedia

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
LoudspeakerStereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG
Stereo sound with dual speakers
Dolby Atmos
Active noise cancellation2 microphones or more2 microphones or more
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

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (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)
Bluetooth5.2 + 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
NFCSupportedSupported
Infrared portNot supportedSupported

🧭 Sensors

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (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 (side-mounted)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
Battery typeLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity5000 mAh5000 mAh
Charger, watts25W Fast battery charging
15W Qi wireless charging (Qi/PMA)
4.5W Reverse wireless charging between devices
USB Power Delivery 3.0
67W Fast battery charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (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: Meteorite Gray, Moonlight White, Celestial Blue

☢️ Radiation rate

Samsung Galaxy S21 Ultra (SM-G998U1 128GB)Xiaomi 11T (128GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.77W/kg (head), 1.02W/kg (body)feature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
X

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