Compare phones
| Global Score | |
| 79.5 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2016-03-11 | 2020-06-19 |
| 5.61 x 2.74 x 0.31 inches | 6.44 x 2.96 x 0.35 inches |
| 5.36 ounces | 6.77 ounces |
| Black, Gold, Pink, Pink gold, Silver and White | Black, Blue, Red and White |
| Aluminum and Glass (Corning Gorilla Glass 4) | -- |
| Scratch-Resistant Glass | -- |
| $ 124.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.5 inches |
| 2560 x 1440 pixels (Quad HD / 2K) | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 576 pixels per inch | 270 pixels per inch |
| 855 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.6 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 820 MSM8996 chipset | Samsung Exynos 850 chipset |
| Kryo, 64-bit, 14 nm (Quad-Core 2200 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 530 GPU | Mali-G76 GPU |
| 9 | 9.09 |
| 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 | 48.00 MP + 13.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.4 inches (1/2.5") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | -- |
| 9.79 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 6.8 |
| 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, Gyroscope and Proximity Sensor |
Comparison review
Galaxy S7 is just a bit better than the Samsung Galaxy A21s, with a score of 79.5 against 77.7. Even though Galaxy S7 is older than Samsung Galaxy A21s, it's design is much lighter and thinner. Galaxy S7 has an incredibly better screen than Samsung Galaxy A21s, because although it has a much smaller screen, it also counts with way more pixels per inch of display and a much higher resolution of 1440 x 2560 pixels.
Galaxy A21s counts with a bigger storage for games and applications than Samsung Galaxy S7, and although they both have the same 32 GB internal storage, the Galaxy A21s also has a SD memory slot that holds up to 512 GB. The Galaxy A21s has a bit more powerful processing unit than Galaxy S7, because although it has a smaller amount of RAM, it also counts with 4 more processing cores (but slower).
The Samsung Galaxy A21s has a much longer battery life than Galaxy S7, because it has 5000mAh of battery capacity instead of 3000mAh. Galaxy A21s has a better camera than Galaxy S7, because although it has a smaller diafragm aperture which is not nice for low-light captures and videos, and they both have the same video frame rate and the same 1920x1080 video resolution, the Galaxy A21s also counts with a larger back camera sensor which provides a higher photo and video quality and a way higher 48 megapixels resolution camera in the back.
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