Compare phones
| Global Score | |
| 91.8 | 78.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow |
| 2021-01-29 | 2016-03-11 |
| 5.97 x 2.80 x 0.31 inches | 5.94 x 2.86 x 0.30 inches |
| 6.03 ounces | 5.54 ounces |
| Gray, Phantom pink, Violet and White | Black, Black pearl, Coral blue, Gold, Pink gold, Silver and White |
| Aluminum and Plastic | Aluminum and Glass (Corning Gorilla Glass 4) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | $ 336.00 |
| Display / Screen | |
| 6.2 inches | 5.5 inches |
| 2400 x 1080 pixels | 2560 x 1440 pixels (Quad HD / 2K) |
| Dynamic AMOLED | Super AMOLED |
| 424 pixels per inch | 534 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8.6 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 820 MSM8996 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo, 64-bit, 14 nm (Quad-Core 2200 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 530 GPU |
| 9.63 | 9 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 200 GB) external memory slot |
| 10.1 | 8.56 |
| Camera | |
| 12.00 MP + 10.00 MP | 12.00 MP + 5.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.4 inches (1/2.5") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 10.78 | 9.79 |
| 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 |
| 10.7 | 6.1 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3600mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | 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 | -- |
Comparison review
Samsung Galaxy S21 has a global score of 91.8, which is much better than Galaxy S7 edge's 78.1 overall score. These devices work with Android operating system, but Samsung Galaxy S21 has 11 version while Galaxy S7 edge has Android 8.0 Oreo version. The Samsung Galaxy S21 design is newer, but just a little bit thicker and a bit heavier than Galaxy S7 edge.
Galaxy S21 counts with a slightly better looking screen than Galaxy S7 edge, because although it has a little less pixels per inch of display and a little worse 1080 x 2400 resolution, it also counts with a quite larger screen. The Samsung Galaxy S21 has a better storage for games and applications than Galaxy S7 edge, because although it has no slot for an SD memory card, it also counts with 128 GB internal memory capacity.
Galaxy S21 has a bit better hardware performance than Samsung Galaxy S7 edge, because it has a higher amount of RAM and a greater number of cores (and faster). Samsung Galaxy S21 counts with just a little better battery duration than Galaxy S7 edge, because it has a 4000mAh battery capacity. Galaxy S21 takes much better photos and videos than Galaxy S7 edge, because although it has a tinier aperture, and they both have a back camera with a 12 mega pixels resolution, the Galaxy S21 also counts with a much better video definition and a lot larger sensor capturing way better quality photographs.
The Samsung Galaxy S21 is a lot more expensive than the Galaxy S7 edge, but it's still a convenient choice, because you can get a much better phone for that extra money.
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