Compare phones
| Global Score | |
| 75.8 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2016-06-10 | 2020-06-29 |
| 5.86 x 2.95 x 0.39 inches | 6.61 x 3.02 x 0.32 inches |
| 6.53 ounces | 6.81 ounces |
| Camo green, Sandy gold and Titanium gray | Black |
| Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 247.00 | $ 194.00 |
| Display / Screen | |
| 5.1 inches | 6.5 inches |
| 2560 x 1440 pixels (Quad HD / 2K) | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 576 pixels per inch | 270 pixels per inch |
| 500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.3 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 820 MSM8996 chipset | Mediatek Helio P35 chipset |
| Kryo, 64-bit, 14 nm (Quad-Core 2150 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 530 GPU | PowerVR GE8320 GPU |
| 8.91 | 9.27 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 200 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.56 | 9.84 |
| Camera | |
| 12.00 MP + 5.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | -- |
| 9.46 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 3 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy A21 has a general score of 76.1, which is slightly better than Galaxy S7 Active's overall score of 75.8. Even though the Samsung Galaxy A21 is a bit heavier than the Galaxy S7 Active, it's somewhat thinner and way newer. Samsung Galaxy S7 Active counts with an incredibly better looking screen than Galaxy A21, because although it has a lot smaller screen, it also counts with a much greater quantity of pixels per inch of screen and a lot better 1440 x 2560 resolution.
Samsung Galaxy A21 features a bit better CPU than Galaxy S7 Active, because although it has a smaller amount of RAM memory, it also counts with 4 more cores. The Samsung Galaxy S7 Active takes slightly better pictures and videos than Galaxy A21, because although it has a lot less mega-pixels resolution camera in the back, it also counts with a way better (4K) video resolution and a larger diafragm aperture to take better low light photography.
Samsung Galaxy A21 counts with a bigger memory for apps and games than Galaxy S7 Active, and although they both have the same internal storage, the Samsung Galaxy A21 also has an external memory slot that allows up to 512 GB. The Galaxy A21 and Galaxy S7 Active both count with quite similar batteries.
Galaxy A21 not only is the best devices between the ones we are comparing, but it's also a lot cheaper, which makes this phone a great choice.
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