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Global Score
11.679.88
Basic Information
SamsungXiaomi
Android 11Android 10
2021-01-292021-01-18
6.50 x 2.98 x 0.35 inches6.37 x 3.04 x 0.36 inches
8.04 ounces7.02 ounces
Phantom black and SilverDaybreak purple and Nightfall black
Aluminum and Glass (Corning Gorilla Glass Victus)Plastic
Scratch-Resistant GlassScratch-Resistant Glass
$ 1200.00--
Display / Screen
6.8 inches6.5 inches
3200 x 1440 pixels 2340 x 1080 pixels
Dynamic AMOLED IPS LCD
516 pixels per inch396 pixels per inch
1500 cd/m2 brightness--
No touch screenNo touch screen
9.88.1
Performance
Qualcomm Snapdragon 888 chipsetMediaTek Dimensity 800U chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorARM Cortex-A76 and ARM Cortex-A55, 64-bit, 7 nm (Octa-Core 2400 MHz) processor
12 GB RAM4 GB RAM
Adreno 660 GPUMali-G57 MC3 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 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 resolution3840 x 2160 (30 fps) (4K) video resolution
1280 x 720 (960 fps) (HD) slow motion video1920 x 1080 (120 fps) (Full HD) slow motion video
13.7511.55
Networks
Wi-FiWi-Fi
Mobile HotspotMobile Hotspot
5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA
Nano SIMNano SIM, Dual SIM
10.710.7
Battery Life
5000mAh Li - Polymer Battery5000mAh Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
4.965.28
Other Features
Bluetooth 5.1 Bluetooth 5.1
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 has a score of 11.67, which is much better than the Xiaomi Redmi Note 9T's score of 9.88. Both phones in this comparison have Android OS (operating system), but Galaxy S21 Ultra has a more recent 11 version while Xiaomi Redmi Note 9T has Android 10, providing some additional features. The Galaxy S21 Ultra construction is heavier but a little bit thinner than Xiaomi Redmi Note 9T, and both of them were only released 0 months apart.

Samsung Galaxy S21 Ultra has a lot better display than Xiaomi Redmi Note 9T, because it has a better display density, a bit bigger screen and a higher resolution of 1440 x 3200px. Samsung Galaxy S21 Ultra has a bit better processing power than Xiaomi Redmi Note 9T, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has a greater amount of RAM memory.

Galaxy S21 Ultra shoots better pictures and videos than Xiaomi Redmi Note 9T, and although they both have the same aperture, the Galaxy S21 Ultra also has a back-facing camera with way more mega-pixels, a way better video quality and a much larger back camera sensor. Xiaomi Redmi Note 9T counts with a bigger storage capacity to install applications and games or saving photos and videos than Galaxy S21 Ultra, because although it has 0 less internal memory capacity, it also counts with a SD extension slot that supports up to 512 GB.

Xiaomi Redmi Note 9T features a bit superior battery life than Galaxy S21 Ultra.