Compare phones

Global Score
Basic Information
Android 11Android 11
6.50 x 2.98 x 0.35 inches6.32 x 2.93 x 0.33 inches
8.04 ounces6.31 ounces
Phantom black and SilverLake Green, Onyx Gray and Pebble White
Aluminum and Glass (Corning Gorilla Glass Victus)--
Scratch-Resistant GlassScratch-Resistant Glass
$ 966.00$ 199.00
Display / Screen
6.8 inches6.4 inches
3200 x 1440 pixels 2400 x 1080 pixels
516 pixels per inch411 pixels per inch
1500 cd/m2 brightness1100 cd/m2 brightness
No touch screenNo touch screen
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 678 chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorKryo 460, 64-bit, 11 nm (Octa-Core 2200 MHz) processor
Adreno 660 GPUAdreno 612 GPU
128 GB internal memory64 GB internal memory
No SD card slotmicroSDXC (up to 512 GB) external memory slot
108.00 MP + 40.00 MP48.00 MP + 13.00 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 resolution--
1280 x 720 (960 fps) (HD) slow motion video--
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
Battery Life
5000mAh Li - Polymer Battery5000mAh Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
Other Features
Bluetooth 5.1 Bluetooth 5.0
--Infra-red port
Fingerprint ID ScannerFingerprint ID Scanner
Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity SensorAccelerometer, Light Sensor and Proximity Sensor
FM Radio--

Comparison review

The Galaxy S21 Ultra is way better than the Xiaomi Redmi Note 10, having a global score of 11.67 against 9.32. Although the Galaxy S21 Ultra is a better cellphone than Xiaomi Redmi Note 10, we must highlight that it's also a little bit thicker and extremely heavier. Both of these phones come with the same Android 11 OS (Operating System), so both should offer very similar operating system features.

The Galaxy S21 Ultra features just a bit better display than Xiaomi Redmi Note 10, because it has a better resolution of 1440 x 3200 pixels, more brightness, more pixels per inch in the display and a little bit bigger display. Xiaomi Redmi Note 10 features more storage capacity to install games and applications than Galaxy S21 Ultra, because although it has only 64 GB internal storage, it also counts with a SD card slot that holds up to 512 GB.

The Samsung Galaxy S21 Ultra counts with a bit better CPU than Xiaomi Redmi Note 10, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has a greater amount of RAM memory. The Xiaomi Redmi Note 10 features just a bit longer battery performance than Galaxy S21 Ultra.

Galaxy S21 Ultra captures a lot better pictures and videos than Xiaomi Redmi Note 10, and although they both have the same aperture, the Galaxy S21 Ultra also has a much bigger back-facing camera sensor taking much better quality videos and photos and a lot higher resolution back-facing camera.

Although Galaxy S21 Ultra is a better device, it is way more expensive than the Xiaomi Redmi Note 10, and it doesn't have such a good price and quality relation as the Xiaomi Redmi Note 10. So if you want that extra specs, you can buy Galaxy S21 Ultra, but if you don't you can save a couple dollars and get the Xiaomi Redmi Note 10, resigning a couple features and specs.