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