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Global Score
11.679.44
Basic Information
SamsungXiaomi
Android 11Android 11, 10
2021-01-292020-02-11
6.50 x 2.98 x 0.35 inches6.51 x 3.02 x 0.35 inches
8.04 ounces7.34 ounces
Phantom black and SilverAtlantis blue, Matrix purple and Phoenix red
Aluminum and Glass (Corning Gorilla Glass Victus)Glass (Corning Gorilla Glass 5) and Plastic
Scratch-Resistant GlassScratch-Resistant Glass
$ 966.00--
Display / Screen
6.8 inches6.7 inches
3200 x 1440 pixels 2400 x 1080 pixels
Dynamic AMOLED IPS LCD
516 pixels per inch393 pixels per inch
1500 cd/m2 brightness--
No touch screenNo touch screen
9.88
Performance
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 730G SM7150-AB 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 memory64 GB internal memory
No SD card slotNo SD card slot
10.17.7
Camera
108.00 MP + 40.00 MP64.00 MP + 20.00 MP
f/1.80 aperturef/1.90 aperture
24.00mm focal length26.00mm focal length
0.75 inches (1/1.33") sensor0.59 inches (1/1.7") 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 (960 fps) (HD) slow motion video
13.7512.1
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
10.76.7
Battery Life
5000mAh Li - Polymer Battery4500mAh Li - Polymer Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
4.964.96
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 way better than the Xiaomi Poco X2, getting a 11.67 score against 9.44. Both of these devices have the same Android 11 OS, so both of them should give all the same OS features. The Galaxy S21 Ultra is a a bit heavier device than Xiaomi Poco X2, but both are 0.35inches thick.

The Samsung Galaxy S21 Ultra has a little better performance than Xiaomi Poco X2, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has more RAM. The Samsung Galaxy S21 Ultra counts with a much sharper screen than Xiaomi Poco X2, because it has a higher count of pixels per screen inch, a quite larger display and a better 1440 x 3200 pixels resolution.

The Samsung Galaxy S21 Ultra has a superior camera than Xiaomi Poco X2, because it has a lot higher resolution back-facing camera, a bigger camera aperture, a way higher 7680x4320 video resolution and a much bigger camera sensor providing a way better image quality. Samsung Galaxy S21 Ultra counts with a superior storage capacity to store more games and applications than Xiaomi Poco X2, because it has 128 GB internal storage.

Xiaomi Poco X2 has a battery lifetime that is just as good as the Samsung Galaxy S21 Ultra one, although the Xiaomi Poco X2 has a 10% lower battery capacity.