Compare phones
| Global Score | |
| 77.7 | 75.8 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | -- |
| 2020-06-19 | 2017-01-13 |
| 6.44 x 2.96 x 0.35 inches | 6.17 x 3.06 x 0.31 inches |
| 6.77 ounces | 6.56 ounces |
| Black, Blue, Red and White | Black sky, Blue mist, Gold sand and Peach cloud |
| -- | Aluminum and Glass (Corning Gorilla Glass 4) |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 5.7 inches |
| 1600 x 720 pixels | 1920 x 1080 pixels (Full HD) |
| TFT | Super AMOLED |
| 270 pixels per inch | 386 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 7.9 |
| Performance | |
| Samsung Exynos 850 chipset | Samsung Exynos 7 Octa 7880 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1900 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Mali-G76 GPU | Mali-T830 MP3 GPU |
| 9.09 | 9 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 9.84 | 8.88 |
| Camera | |
| 48.00 MP + 13.00 MP | 16.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.78 | 9.24 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G) and HSPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.1 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3600mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.6 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy A21s has a score of 77.7, which is just a bit better than Samsung Galaxy A7 (2017)'s 75.8 global score. Even though Samsung Galaxy A21s is extremely newer than Samsung Galaxy A7 (2017), it's thicker and just a little bit heavier. The Samsung Galaxy A7 (2017) counts with a little bit better screen than Samsung Galaxy A21s, because although it has a bit smaller screen, it also counts with a better resolution of 1080 x 1920px and more pixels per inch of screen.
Galaxy A21s counts with a bigger memory to install applications and games than Samsung Galaxy A7 (2017), and although they both have the same 32 GB internal storage, the Galaxy A21s also has a SD card slot that allows a maximum of 512 GB. Galaxy A21s features a bit more powerful processor than Galaxy A7 (2017). They have the same number of cores and a 3 GB RAM.
Galaxy A21s counts with a much better camera than Galaxy A7 (2017), because although it has a smaller camera aperture, and they both have the same video definition and the same video frame rates, the Galaxy A21s also counts with a back camera with much more MP. Galaxy A21s has a much longer battery lifetime than Samsung Galaxy A7 (2017), because it has a 39% bigger battery size.
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