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Global Score
11.679.8
Basic Information
SamsungXiaomi
Android 11Android 10, 9.0 Pie
2021-01-292019-06-17
6.50 x 2.98 x 0.35 inches6.17 x 2.93 x 0.35 inches
8.04 ounces6.74 ounces
Phantom black and SilverCarbon Black, Flame Red and Glacier Blue
Aluminum and Glass (Corning Gorilla Glass Victus)Metal and Metal
Scratch-Resistant GlassScratch-Resistant Glass
$ 1200.00--
Display / Screen
6.8 inches6.4 inches
3200 x 1440 pixels 2340 x 1080 pixels
Dynamic AMOLED AMOLED
516 pixels per inch403 pixels per inch
1500 cd/m2 brightness430 cd/m2 brightness
No touch screenNo touch screen
9.88.4
Performance
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 730 SM7150-AA chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorKryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor
12 GB RAM6 GB RAM
Adreno 660 GPUAdreno 618 GPU
9.729.27
Storage
128 GB internal memory128 GB internal memory
No SD card slotNo SD card slot
10.110.1
Camera
108.00 MP + 40.00 MP48.00 MP + 20.00 MP
f/1.80 aperturef/1.80 aperture
24.00mm focal length26.00mm focal length
0.75 inches (1/1.33") sensor0.5 inches (1/2") sensor
7680 x 4320 (24 fps) video resolution3840 x 2160 (30 fps) (4K) video resolution
1280 x 720 (960 fps) (HD) slow motion video1920 x 1080 (960 fps) (Full HD) slow motion video
13.7511.66
Networks
Wi-FiWi-Fi
Mobile HotspotMobile Hotspot
5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPALTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA
Nano SIMNano SIM, Dual SIM
10.76.7
Battery Life
5000mAh Li - Polymer Battery4000mAh Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
4.964.72
Other Features
Bluetooth 5.1 Bluetooth 5.0
GPSGPS
NFCNFC
Fingerprint ID ScannerFingerprint ID Scanner
Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity SensorAccelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor
FM RadioFM Radio

Comparison review

The Galaxy S21 Ultra has an overall score of 11.67, which is better than Xiaomi Mi 9T's 9.8 general score. Both phones we are comparing here have Android OS (Operating System), but the Galaxy S21 Ultra has the newer 11 version while Xiaomi Mi 9T has Android 10, so it gives some nice extra features. Galaxy S21 Ultra is a somewhat heavier device than the Xiaomi Mi 9T, but both of them have the same thickness.

Galaxy S21 Ultra features a sharper screen than Xiaomi Mi 9T, because it has a way brighter display, a better resolution of 1440 x 3200, a little bit bigger screen and a better count of pixels per screen inch. The Xiaomi Mi 9T features as much memory to store more apps and games as the Galaxy S21 Ultra one, they have exactly the same internal memory capacity.

The Galaxy S21 Ultra has a little faster processor than Xiaomi Mi 9T, and although they both have 8 cores, the Galaxy S21 Ultra also has a greater amount of RAM. The Galaxy S21 Ultra features a superior camera than Xiaomi Mi 9T, and although they both have a F1.8 aperture, the Galaxy S21 Ultra also has a lot bigger sensor shooting much better quality videos and pictures, a lot higher 108 mega pixels resolution camera in the back and a much higher 7680x4320 video definition.

The Samsung Galaxy S21 Ultra features a bit longer battery life than Xiaomi Mi 9T, because it has a 25% larger battery capacity.