Compare phones
| Global Score | |
| 79.5 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2016-03-11 | 2020-06-29 |
| 5.61 x 2.74 x 0.31 inches | 6.61 x 3.02 x 0.32 inches |
| 5.36 ounces | 6.81 ounces |
| Black, Gold, Pink, Pink gold, Silver and White | Black |
| Aluminum and Glass (Corning Gorilla Glass 4) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 124.00 | $ 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 |
| 855 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.6 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 820 MSM8996 chipset | Mediatek Helio P35 chipset |
| Kryo, 64-bit, 14 nm (Quad-Core 2200 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 |
| 9 | 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 |
| 26.00mm focal length | -- |
| 0.4 inches (1/2.5") sensor | 0.33 inches (1/3.06") 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 | 9.35 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 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
The Galaxy S7 has a score of 79.5, which is a little bit better than the Galaxy A21's 76.1 general score. The Galaxy S7 design is just a bit thinner and lighter than the Galaxy A21, even though it was released many years before. The Samsung Galaxy S7 features a much sharper display than Galaxy A21, because although it has a much smaller screen, it also counts with a way higher pixels density and a much higher 1440 x 2560px resolution.
The Galaxy A21 features just a bit better processing power than Samsung Galaxy S7, because although it has lesser RAM, it also counts with a greater number of cores (and they are faster). Samsung Galaxy S7 takes a bit better videos and photos than Samsung Galaxy A21, because although it has a camera in the back with lot less megapixels, it also counts with a way better video definition, a bigger camera aperture to take better images and video in low-light environments and a larger back-facing camera sensor taking more light and vivid colors.
The Samsung Galaxy A21 features a bigger memory capacity to install games and applications than Samsung Galaxy S7, and although they both have the same internal memory capacity, the Samsung Galaxy A21 also has an external SD slot that allows up to 512 GB. The Galaxy A21 counts with longer battery lifetime than Galaxy S7, because it has a 4000mAh battery capacity instead of 3000mAh.
Galaxy S7 not only is the best devices between the ones we are comparing here, but it's also by far the cheapest one.
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