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Global Score
Basic Information
Android 11Android 10, 9.0 Pie
6.50 x 2.98 x 0.35 inches6.22 x 2.95 x 0.29 inches
8.04 ounces5.82 ounces
Phantom black and SilverGray and White
Aluminum and Glass (Corning Gorilla Glass Victus)Aluminum and Glass (Corning Gorilla Glass 5)
Scratch-Resistant GlassScratch-Resistant Glass
$ 1200.00$ 500.00
Display / Screen
6.8 inches6.4 inches
3200 x 1440 pixels 2340 x 1080 pixels
516 pixels per inch403 pixels per inch
1500 cd/m2 brightness--
No touch screenNo touch screen
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 675 chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorKryo 460, 64-bit, 11 nm (Octa-Core 2000 MHz) processor
Adreno 660 GPUAdreno 612 GPU
128 GB internal memory128 GB internal memory
No SD card slotmicroSDXC (up to 512 GB) external memory slot
108.00 MP + 40.00 MP48.00 MP + 25.00 MP
f/1.80 aperturef/1.70 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
Mobile HotspotMobile Hotspot
5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPALTE-A (4G), LTE (4G), HSPA and HSUPA
Nano SIMNano SIM
Battery Life
5000mAh Li - Polymer Battery3600mAh Li - Ion 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, Compass, Light Sensor and Proximity Sensor
FM RadioFM Radio

Comparison review

Samsung Galaxy S21 Ultra has an overall score of 11.67, which is better than the Moto Z4's general score of 10.02. These phones have Android OS (Operating System), but the Samsung Galaxy S21 Ultra has a more recent 11 version and Moto Z4 has Android 10, providing the user some additional features. The Samsung Galaxy S21 Ultra design is newer than Moto Z4's, but it's notably heavier and somewhat thicker.

Samsung Galaxy S21 Ultra counts with a lot better looking screen than Moto Z4, because it has a higher pixels number in each inch of screen, a little larger display and a better resolution of 1440 x 3200 pixels. Galaxy S21 Ultra has a little better hardware performance than Motorola Moto Z4, and although they both have 8 processing cores, the Galaxy S21 Ultra also has 8 GB more RAM memory.

Samsung Galaxy S21 Ultra captures much clearer photos and videos than Motorola Moto Z4, because although it has a tinier diafragm aperture which is not good for low-light photography, it also counts with a way better video definition, a lot higher resolution back facing camera and a lot larger back camera sensor.

The Motorola Moto Z4 counts with a much greater memory capacity to install games and applications than Samsung Galaxy S21 Ultra, and although they both have the same 128 GB internal storage capacity, the Motorola Moto Z4 also has a slot for external memory cards that admits a maximum of 512 GB. The Galaxy S21 Ultra has just a bit longer battery lifetime than Motorola Moto Z4, because it has 5000mAh of battery capacity.

Galaxy S21 Ultra is way more expensive than the Moto Z4, but it's still a great choice, because you can get a lot more features for that extra money.