Compare phones
| Global Score | |
| 91.8 | 75.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | -- |
| 2021-01-29 | 2017-01-13 |
| 5.97 x 2.80 x 0.31 inches | 6.17 x 3.06 x 0.31 inches |
| 6.03 ounces | 6.56 ounces |
| Gray, Phantom pink, Violet and White | Black sky, Blue mist, Gold sand and Peach cloud |
| Aluminum and Plastic | Aluminum and Glass (Corning Gorilla Glass 4) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 5.7 inches |
| 2400 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Dynamic AMOLED | Super AMOLED |
| 424 pixels per inch | 386 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 7.9 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Samsung Exynos 7 Octa 7880 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 660 GPU | Mali-T830 MP3 GPU |
| 9.63 | 9 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 10.1 | 8.88 |
| Camera | |
| 12.00 MP + 10.00 MP | 16.00 MP + 16.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | -- |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.78 | 9.24 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G) and HSPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.1 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3600mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.6 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | NFC |
| 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 | FM Radio |
Comparison review
The Galaxy S21 is way better than Samsung Galaxy A7 (2017), having a 91.8 score against 75.8. Galaxy S21 is a just a little lighter cellphone than Samsung Galaxy A7 (2017), but they are equally thin. Galaxy S21 has a better looking display than Galaxy A7 (2017), because it has a quite better 1080 x 2400 resolution, a quite larger display and a quite greater amount of pixels per inch in the display.
The Samsung Galaxy S21 features a little faster processing unit than Samsung Galaxy A7 (2017), and although they both have a Octa-Core CPU, the Samsung Galaxy S21 also has more RAM. Samsung Galaxy S21 counts with a better storage to store more games and applications than Samsung Galaxy A7 (2017), because although it has no SD memory slot, it also counts with more internal memory capacity.
Galaxy S21 features just a little better battery life than Samsung Galaxy A7 (2017), because it has 4000mAh of battery capacity against 3600mAh. The Galaxy S21 has a much better camera than Galaxy A7 (2017), because although it has a back camera with a way worse 12 MP resolution, it also counts with a larger aperture to take better low-light photos and video and a much better 7680x4320 video quality.
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