Compare phones
| Global Score | |
| 79.5 | 91.8 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 11 |
| 2016-03-11 | 2021-01-29 |
| 5.61 x 2.74 x 0.31 inches | 5.97 x 2.80 x 0.31 inches |
| 5.36 ounces | 6.03 ounces |
| Black, Gold, Pink, Pink gold, Silver and White | Gray, Phantom pink, Violet and White |
| Aluminum and Glass (Corning Gorilla Glass 4) | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 124.00 | $ 722.00 |
| Display / Screen | |
| 5.1 inches | 6.2 inches |
| 2560 x 1440 pixels (Quad HD / 2K) | 2400 x 1080 pixels |
| Super AMOLED | Dynamic AMOLED |
| 576 pixels per inch | 424 pixels per inch |
| 855 cd/m2 brightness | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.6 | 9.2 |
| Performance | |
| Qualcomm Snapdragon 820 MSM8996 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo, 64-bit, 14 nm (Quad-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Adreno 530 GPU | Adreno 660 GPU |
| 9 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 200 GB) external memory slot | No SD card slot |
| 8.56 | 10.1 |
| Camera | |
| 12.00 MP + 5.00 MP | 12.00 MP + 10.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.4 inches (1/2.5") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (960 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 | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy S21 is much better than Samsung Galaxy S7, getting a 91.8 score against 79.5. The Galaxy S21 construction has the same thickness than the Samsung Galaxy S7, but it's somewhat heavier. The Galaxy S7 counts with a bit more vivid display than Galaxy S21, because although it has a little bit smaller display and way darker display, it also counts with a better 1440 x 2560 resolution and more pixels per display inch.
The Galaxy S21 has a bit better CPU than Samsung Galaxy S7, because it has a larger number of faster cores and 4 GB more RAM. Samsung Galaxy S21 counts with more storage capacity for applications and games than Samsung Galaxy S7, because although it has no external memory slot, it also counts with more internal memory capacity.
The Galaxy S21 captures much better pictures and videos than Galaxy S7, because although it has a tinier diafragm aperture which is not favorable for taking photos or video in low-light situations, and they both have a same resolution camera in the back, the Galaxy S21 also counts with a much better 7680x4320 video definition and a lot bigger camera sensor capturing lot better quality videos and pictures.
Samsung Galaxy S21 has longer battery life than Galaxy S7, because it has 4000mAh of battery capacity.
Although Galaxy S21 is a better device, it is way more expensive than the Galaxy S7, and it doesn't have such a good quality/price relation as the Galaxy S7. If you prefer to save a few dollars, you can get the Galaxy S7, letting go a few features and specs, but you'll get the most with your budget.
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