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Global Score
11.679.9
Basic Information
SamsungXiaomi
Android 11Android 11
2021-01-292021-03-20
6.50 x 2.98 x 0.35 inches6.51 x 3.02 x 0.37 inches
8.04 ounces7.58 ounces
Phantom black and SilverFrost blue, Metal bronze and Phantom black
Aluminum and Glass (Corning Gorilla Glass Victus)--
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
9.88.1
Performance
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 860 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 RAM6 GB RAM
Adreno 660 GPUAdreno 640 GPU
9.729.63
Storage
128 GB internal memory128 GB internal memory
No SD card slotmicroSDXC (up to 1 TB) external memory slot
10.115.42
Camera
108.00 MP + 40.00 MP48.00 MP
f/1.80 aperturef/1.80 aperture
24.00mm 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 (60 fps) (Full HD) slow motion video
13.7510.78
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 Battery5160mAh Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
4.965.04
Other Features
Bluetooth 5.1 Bluetooth 5.0
GPSGPS
NFCNFC
--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 Radio--

Comparison review

Galaxy S21 Ultra is much better than Xiaomi Poco X3 Pro, having a 11.67 score against 9.9. These phones come with the same Android 11 operating system. The Galaxy S21 Ultra construction is a bit thinner but a little bit heavier than the Xiaomi Poco X3 Pro, and both were released only 2 months apart.

The Galaxy S21 Ultra counts with an incredibly better screen than Xiaomi Poco X3 Pro, because it has a better pixel density, a better 1440 x 3200 pixels resolution and a little bigger screen. Xiaomi Poco X3 Pro features a very superior storage for apps and games than Galaxy S21 Ultra, and although they both have exactly the same internal memory capacity, the Xiaomi Poco X3 Pro also has an external memory slot that admits a maximum of 1 TB.

Galaxy S21 Ultra features a bit faster CPU than Xiaomi Poco X3 Pro, and although they both have 8 cpu cores, the Galaxy S21 Ultra also has a higher amount of RAM. Samsung Galaxy S21 Ultra features a way better camera than Xiaomi Poco X3 Pro, and although they both have the same aperture, the Samsung Galaxy S21 Ultra also has a lot better video definition, a much bigger camera sensor which provides a way higher photo and video quality and a camera with way more mega-pixels.

The Xiaomi Poco X3 Pro counts with a little longer battery performance than Samsung Galaxy S21 Ultra, because it has 5160mAh of battery capacity.