Compare phones

Global Score
Basic Information
Android 11Android 11, 10
6.50 x 2.98 x 0.35 inches6.46 x 2.99 x 0.36 inches
8.04 ounces6.91 ounces
Phantom black and SilverBlack, Blue and White
Aluminum and Glass (Corning Gorilla Glass Victus)Plastic and Plastic
Scratch-Resistant Glass--
$ 966.00$ 170.00
Display / Screen
6.8 inches6.5 inches
3200 x 1440 pixels 1600 x 720 pixels
516 pixels per inch270 pixels per inch
1500 cd/m2 brightness--
No touch screenNo touch screen
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 450 SDM450 chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorCortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor
Adreno 660 GPUAdreno 506 GPU
128 GB internal memory32 GB internal memory
No SD card slotmicroSDXC (up to 1 TB) external memory slot
108.00 MP + 40.00 MP13.00 MP + 5.00 MP
f/1.80 aperturef/2.20 aperture
24.00mm focal length--
0.75 inches (1/1.33") sensor--
7680 x 4320 (24 fps) video resolution1920 x 1080 (30 fps) (Full HD) 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 (4G), HSPA+ (4G), HSDPA and HSUPA
Nano SIMNano SIM, Dual SIM
Battery Life
5000mAh Li - Polymer Battery5000mAh Li - Polymer Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
Other Features
Bluetooth 5.1 Bluetooth 4.2
Fingerprint ID Scanner--
Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity SensorAccelerometer, Light Sensor and Proximity Sensor
FM Radio--

Comparison review

The Samsung Galaxy S21 Ultra has a score of 11.67, which is a lot better than the Galaxy A02s's overall score of 8.87. Both phones we are comparing include the same Android 11 OS (operating system). The Samsung Galaxy S21 Ultra body is somewhat heavier but just a bit thinner than Galaxy A02s, and they were released only 1 months apart.

The Galaxy S21 Ultra has a bit better processing power than Galaxy A02s, and although they both have 8 CPU cores, the Galaxy S21 Ultra also has a greater amount of RAM memory. The Samsung Galaxy S21 Ultra counts with a much sharper screen than Galaxy A02s, because it has a lot greater screen density, a little bit larger display and a lot higher 1440 x 3200 resolution.

Samsung Galaxy A02s counts with a better storage for games and applications than Galaxy S21 Ultra, because although it has just 32 GB internal storage, it also counts with an external SD slot that admits up to 1 TB. The Galaxy A02s counts with superior battery life than Galaxy S21 Ultra. Samsung Galaxy S21 Ultra takes much clearer pictures and videos than Galaxy A02s, because it has a bigger aperture to take better photos and video in low light situations, a lot higher 7680x4320 video definition and a back camera with way more mega-pixels.

Although Galaxy S21 Ultra is a better device, it is a lot more expensive than Samsung Galaxy A02s, and it doesn't have such a good relation between it's price and quality as the Samsung Galaxy A02s. So if you need that extra specs and features, you can buy Galaxy S21 Ultra, otherwise you can save some dollars and get the Samsung Galaxy A02s, resigning a couple specifications.