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Global Score
11.6710.56
Basic Information
SamsungXiaomi
Android 11Android 10
2021-01-292019-09-24
6.50 x 2.98 x 0.35 inches6.08 x 2.85 x 0.41 inches
8.04 ounces8.50 ounces
Phantom black and SilverBlack
Aluminum and Glass (Corning Gorilla Glass Victus)Titanium
Scratch-Resistant Glass--
$ 966.00--
Display / Screen
6.8 inches7.9 inches
3200 x 1440 pixels 2250 x 2088 pixels
Dynamic AMOLED OLED
516 pixels per inch389 pixels per inch
1500 cd/m2 brightness--
No touch screenNo touch screen
9.88.2
Performance
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 855+ SM8150-AC chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorKryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor
12 GB RAM12 GB RAM
Adreno 660 GPUAdreno 640 GPU
9.729.81
Storage
128 GB internal memory512 GB internal memory
No SD card slotNo SD card slot
10.117.6
Camera
108.00 MP + 40.00 MP108.00 MP
f/1.80 aperturef/1.70 aperture
24.00mm focal length--
0.75 inches (1/1.33") sensor0.75 inches (1/1.33") sensor
7680 x 4320 (24 fps) video resolution3840 x 2160 (4K) video resolution
1280 x 720 (960 fps) (HD) slow motion video--
13.7510.56
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 Battery4050mAh Li - Ion Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
4.964.08
Other Features
Bluetooth 5.1 Bluetooth 5.0
GPSGPS
NFC--
Fingerprint ID ScannerFingerprint ID Scanner
Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity SensorAccelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor
FM Radio--

Comparison review

The Galaxy S21 Ultra is better than the Xiaomi Mi Mix Alpha, having a global score of 11.67 against 10.56. Galaxy S21 Ultra is a newer phone, and it's also a little lighter and thinner than Xiaomi Mi Mix Alpha. Both phones in this comparison review come with Android operating system, but the Galaxy S21 Ultra has newer 11 version while Xiaomi Mi Mix Alpha has Android 10 version, providing the user some nice extra features and performance enhancements.

The Xiaomi Mi Mix Alpha counts with a little better processing power than Galaxy S21 Ultra. Both have 12 GB of RAM memory and a Octa-Core processor. The Samsung Galaxy S21 Ultra counts with a brighter display than Xiaomi Mi Mix Alpha, because although it has a bit smaller display and a quite lower resolution of 1440 x 3200 pixels, it also counts with a greater count of pixels per inch of display.

The Galaxy S21 Ultra shoots way better photographs and videos than Xiaomi Mi Mix Alpha, because although it has a smaller diafragm aperture which is not nice for low-light captures and video, and they both have a 108 MP back facing camera and a same size sensor, the Galaxy S21 Ultra also counts with a lot better video resolution.

The Xiaomi Mi Mix Alpha counts with a lot bigger memory for games and applications than Galaxy S21 Ultra, because it has 384 GB more internal memory capacity. Samsung Galaxy S21 Ultra counts with a much better battery duration than Xiaomi Mi Mix Alpha, because it has a 5000mAh battery capacity against 4050mAh.