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Global Score
Basic Information
Android 11Android 10
6.50 x 2.98 x 0.35 inches6.35 x 2.98 x 0.35 inches
8.04 ounces6.64 ounces
Phantom black and SilverNeon blue and Pearl white
Aluminum and Glass (Corning Gorilla Glass Victus)Plastic
Scratch-Resistant Glass--
$ 966.00$ 237.00
Display / Screen
6.8 inches6.4 inches
3200 x 1440 pixels 1560 x 720 pixels
516 pixels per inch268 pixels per inch
1500 cd/m2 brightness--
No touch screenNo touch screen
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 665 SM6125 chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorKryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor
Adreno 660 GPUAdreno 610 GPU
128 GB internal memory64 GB internal memory
No SD card slotmicroSDXC (up to 512 GB) external memory slot
108.00 MP + 40.00 MP16.00 MP + 8.00 MP
f/1.80 aperturef/1.70 aperture
24.00mm focal length--
0.75 inches (1/1.33") 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
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
Battery Life
5000mAh Li - Polymer Battery4000mAh Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
Other Features
Bluetooth 5.1 Bluetooth 5.0
Fingerprint ID ScannerFingerprint ID Scanner
Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity SensorAccelerometer, Gyroscope, Light Sensor and Proximity Sensor
FM RadioFM Radio

Comparison review

The Galaxy S21 Ultra is way better than the Motorola Moto G8, having a 11.67 score against 9.34. These devices work with Android OS (operating system), but Galaxy S21 Ultra has the newer 11 version while Motorola Moto G8 has Android 10 version. The Galaxy S21 Ultra design has the same thickness than the Motorola Moto G8, but it's somewhat heavier.

Galaxy S21 Ultra has a bit more powerful CPU than Moto G8, and although they both have the same number of cores, the Galaxy S21 Ultra also has more RAM memory. Samsung Galaxy S21 Ultra features a way better display than Motorola Moto G8, because it has a way higher 1440 x 3200px resolution, a quite larger display and a lot greater pixel density.

The Galaxy S21 Ultra features a lot better camera than Motorola Moto G8, because although it has a smaller aperture, it also counts with a lot more MP back-facing camera and a lot better 7680x4320 video quality. Moto G8 counts with a bigger memory capacity for applications and games than Samsung Galaxy S21 Ultra, because although it has just 64 GB internal memory, it also counts with a SD memory slot that supports up to 512 GB.

Galaxy S21 Ultra has a bit better battery duration than Motorola Moto G8, because it has 5000mAh of battery capacity.

Although Galaxy S21 Ultra is a better device, it costs a lot more money than Motorola Moto G8, and it doesn't have such a good relation between it's price and quality as the Motorola Moto G8. If you prefer to save some dollars, you can buy Motorola Moto G8, giving up a few features and specifications, but you will get the most with your money.