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Global Score
11.679.64
Basic Information
SamsungXiaomi
Android 11Android 10
2021-01-292020-05-05
6.50 x 2.98 x 0.35 inches6.53 x 3.02 x 0.35 inches
8.04 ounces7.37 ounces
Phantom black and SilverGlacier white, Interstellar gray and Tropical green
Aluminum and Glass (Corning Gorilla Glass Victus)Glass (Corning Gorilla Glass 5) and Plastic
Scratch-Resistant GlassScratch-Resistant Glass
$ 966.00$ 291.00
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 720G SM7125 chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorKryo 465, 64-bit, 8 nm (Octa-Core 2300 MHz) processor
12 GB RAM6 GB RAM
Adreno 660 GPUAdreno 618 GPU
9.729.36
Storage
128 GB internal memory64 GB internal memory
No SD card slotmicroSDXC (up to 512 GB) external memory slot
10.111.74
Camera
108.00 MP + 40.00 MP64.00 MP + 16.00 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, Dual SIM
10.76.7
Battery Life
5000mAh Li - Polymer Battery5020mAh Li - Polymer Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
4.965.28
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

The Samsung Galaxy S21 Ultra has an overall score of 11.67, which is a lot better than the Xiaomi Redmi Note 9 Pro's 9.64 overall score. Both of these phones include Android OS (Operating System), but the Samsung Galaxy S21 Ultra has a more recent 11 version and Xiaomi Redmi Note 9 Pro has Android 10. Samsung Galaxy S21 Ultra is a a bit heavier phone than Xiaomi Redmi Note 9 Pro, but both are 0.35inches thick.

The Samsung Galaxy S21 Ultra features a lot better looking display than Xiaomi Redmi Note 9 Pro, because it has a better pixel number in each inch of screen, a higher 1440 x 3200 pixels resolution and a bit bigger screen. The Samsung Galaxy S21 Ultra has a bit more powerful processor than Xiaomi Redmi Note 9 Pro, and although they both have a Octa-Core processing unit, the Samsung Galaxy S21 Ultra also has more RAM.

The Xiaomi Redmi Note 9 Pro has a greater storage to store more apps and games than Galaxy S21 Ultra, because although it has just 64 GB internal memory, it also counts with a SD memory slot that supports a maximum of 512 GB. Galaxy S21 Ultra takes better photographs and videos than Xiaomi Redmi Note 9 Pro, because it has a way higher video definition, a much larger camera sensor capturing more light and vivid colors, a bigger diafragm aperture for better photos and videos in low-light situations and a way better 108 mega pixels resolution back camera.

Xiaomi Redmi Note 9 Pro features a bit better battery lifetime than Samsung Galaxy S21 Ultra, because it has 5020mAh of battery capacity.

Although Samsung Galaxy S21 Ultra is a better device, it costs a lot more than the Xiaomi Redmi Note 9 Pro, and it doesn't have such a good price and quality relation as Xiaomi Redmi Note 9 Pro. If you want to save some dollars, you can buy Xiaomi Redmi Note 9 Pro, and give up a couple features, but you'll get the most with your savings.