Compare phones
| Global Score | |
| 98.1 | 80.9 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 5.0 |
| 2021-01-29 | -- |
| 6.50 x 2.98 x 0.35 inches | 5.78 x 2.90 x 0.35 inches |
| 8.04 ounces | -- |
| Phantom black and Silver | -- |
| Aluminum and Glass (Corning Gorilla Glass Victus) | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | $ 245.00 |
| Display / Screen | |
| 6.8 inches | 5.1 inches |
| 3200 x 1440 pixels | 1440 x 2560 pixels (Quad HD / 2K) |
| Dynamic AMOLED | Super AMOLED |
| 516 pixels per inch | 576 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | Capacitive, Multi-touch |
| 9.8 | 9.9 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Exynos 7 Octa 7420 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor |
| 12 GB RAM | 3 GB (1600 MHz) RAM |
| Adreno 660 GPU | Mali-T760 MP8 (650 MHz) GPU |
| 9.72 | 10.08 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSD external memory slot |
| 10.1 | 5.8 |
| Camera | |
| 108.00 MP + 40.00 MP | 16.00 MP + 5.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") sensor | 0.38 inches (1/2.6") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 13.75 | 8.47 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM |
| Nano SIM | Nano SIM |
| 10.7 | 6.6 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3500mAh Battery |
| Non-Removable Battery | Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.44 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 4.1 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy S21 Ultra is a lot better than Galaxy S6 Active, getting a score of 98.1 against 80.9. Both of these phones include Android OS, but Galaxy S21 Ultra has the newer 11 version while Galaxy S6 Active has Android 5.0, so it provides the user a couple nice extra features. The Galaxy S21 Ultra design has the same thickness than Galaxy S6 Active, but it is incredibly heavier.
Galaxy S6 Active has a bit more vivid display than Samsung Galaxy S21 Ultra, because although it has a way smaller screen and a little worse resolution of 2560 x 1440, it also counts with a bit better amount of pixels per display inch. The Samsung Galaxy S21 Ultra counts with a lot bigger storage capacity for applications and games than Samsung Galaxy S6 Active, because although it has no external memory card slot, it also counts with 128 GB internal storage.
The Galaxy S6 Active has a little faster CPU than Galaxy S21 Ultra, because although it has 9 GB lesser RAM memory, and they both have the same number of cores, the Galaxy S6 Active also counts with a 64-bit processor and an extra graphics processing unit. Galaxy S21 Ultra has a very superior battery duration than Samsung Galaxy S6 Active, because it has 5000mAh of battery capacity.
Samsung Galaxy S21 Ultra captures much better photos and videos than Samsung Galaxy S6 Active, because it has a way bigger back camera sensor taking way better quality photographs and videos, a larger aperture to capture better low-light photos and video, a way higher video definition and a much more mega-pixels back facing camera.
Although Samsung Galaxy S21 Ultra is a better device, it costs a lot more money than Galaxy S6 Active, and it doesn't have such a good quality/price relation as Galaxy S6 Active. If you prefer to save some money, you can buy the Galaxy S6 Active, and give up a couple features and specs, but you'll get the most out of your savings.
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