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Global Score
11.679.31
Basic Information
SamsungXiaomi
Android 11--
2021-01-292018-07-27
6.50 x 2.98 x 0.35 inches6.25 x 2.97 x 0.29 inches
8.04 ounces5.93 ounces
Phantom black and SilverBlack, Blue, Gold, Pink and Red
Aluminum and Glass (Corning Gorilla Glass Victus)Aluminum
Scratch-Resistant GlassScratch-Resistant Glass
$ 966.00--
Display / Screen
6.8 inches6 inches
3200 x 1440 pixels 2160 x 1080 pixels
Dynamic AMOLED IPS LCD
516 pixels per inch402 pixels per inch
1500 cd/m2 brightness--
No touch screenNo touch screen
9.88.1
Performance
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 660 SDM660 chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorKryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor
12 GB RAM6 GB RAM
Adreno 660 GPUAdreno 512 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 MP12.00 MP + 20.00 MP
f/1.80 aperturef/1.80 aperture
24.00mm focal length--
0.75 inches (1/1.33") sensor0.34 inches (1/2.9") sensor
7680 x 4320 (24 fps) video resolution3840 x 2160 (30 fps) (4K) video resolution
1280 x 720 (960 fps) (HD) slow motion video1280 x 720 (120 fps) (HD) slow motion video
13.759.79
Networks
Wi-FiWi-Fi
Mobile HotspotMobile Hotspot
5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPALTE-A (4G), LTE (4G), HSPA and HSUPA
Nano SIMNano SIM, Dual SIM
10.76.3
Battery Life
5000mAh Li - Polymer Battery3010mAh Li - Polymer Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
4.964.16
Other Features
Bluetooth 5.1 Bluetooth 5.0
GPSGPS
NFC--
--Infra-red port
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 is a lot better than the Xiaomi Mi A2, with a general score of 11.67 against 9.31. The Galaxy S21 Ultra body is notably newer than Xiaomi Mi A2's, although it is somewhat thicker and noticeably heavier. Samsung Galaxy S21 Ultra has an incredibly better looking display than Xiaomi Mi A2, because it has a better 1440 x 3200 resolution, a quite bigger display and more pixels per screen inch.

Xiaomi Mi A2 and Samsung Galaxy S21 Ultra have really similar memory for applications, games, photos and videos, both of them have exactly the same internal storage. The Galaxy S21 Ultra counts with a bit faster CPU than Xiaomi Mi A2, and although they both have the same number of cores, the Galaxy S21 Ultra also has a higher amount of RAM.

Galaxy S21 Ultra features greater battery lifetime than Xiaomi Mi A2, because it has a 66% larger battery size. Galaxy S21 Ultra counts with a greater camera than Xiaomi Mi A2, and although they both have the same diafragm aperture, the Galaxy S21 Ultra also has a camera with a much better 108 mega pixels resolution, a lot bigger sensor shooting way higher quality videos and pictures and a lot higher video definition.