Compare phones
| Global Score | |
| 91.8 | 84.2 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | -- |
| 2021-01-29 | 2018-10-20 |
| 5.97 x 2.80 x 0.31 inches | 6.29 x 3.02 x 0.30 inches |
| 6.03 ounces | 5.93 ounces |
| Gray, Phantom pink, Violet and White | 16 777 216 |
| Aluminum and Plastic | Glass (Corning Gorilla Glass 3) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6 inches |
| 2400 x 1080 pixels | 2220 x 1080 pixels |
| Dynamic AMOLED | Super AMOLED |
| 424 pixels per inch | 411 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Samsung Exynos 7 Octa 7885 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Mali-G71 MP2 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 12.00 MP + 10.00 MP | 24.00 MP + 24.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.36 inches (1/2.8") 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 | 9.9 |
| 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), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | 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 | FM Radio |
Comparison review
The Samsung Galaxy S21 has a general score of 91.8, which is just a bit better than Galaxy A7 (2018)'s 84.2 overall score. Even though Samsung Galaxy S21 is a lot newer than the Galaxy A7 (2018), it's just a little thicker and just a little bit heavier. Galaxy S21 counts with a brighter display than Galaxy A7 (2018), because it has a bit higher 1080 x 2400 resolution, a bit higher amount of pixels in each inch in the display and a bit larger display.
The Samsung Galaxy A7 (2018) features a much bigger storage to store more apps and games than Galaxy S21, and although they both have exactly the same 128 GB internal storage capacity, the Samsung Galaxy A7 (2018) also has a SD extension slot that admits a maximum of 512 GB. The Galaxy S21 has a little bit better processing power than Galaxy A7 (2018), and although they both have 8 cores, the Galaxy S21 also has 2 GB more RAM.
The Galaxy S21 has improved battery performance than Galaxy A7 (2018), because it has a 4000mAh battery size. Samsung Galaxy S21 has a bit better camera than Galaxy A7 (2018), because although it has a camera in the back with a lot lower resolution and a tinier diafragm aperture which is not favorable for capturing pictures and/or video in poorly lited environments, it also counts with a much bigger back camera sensor and a way higher video resolution.
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