Compare phones
| Global Score | |
| 72.8 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 6.0 Marshmallow | Android 10 |
| 2016-10-01 | 2020-06-29 |
| 6.17 x 3.02 x 0.28 inches | 6.61 x 3.02 x 0.32 inches |
| 6.42 ounces | 6.81 ounces |
| Blue, Gold and Silver | Black |
| Aluminum and Aluminum | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 5.7 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 386 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.3 |
| Performance | |
| Samsung Exynos 7 Octa 7420 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A57 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2100 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Yes GPU | PowerVR GE8320 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 9.84 |
| Camera | |
| 16.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.13 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| -- | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 3 | 6.7 |
| Battery Life | |
| 3300mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy A21 is a little bit better than Galaxy A8 (2016), getting a overall score of 76.1 against 72.8. These phones include Android operating system, but Samsung Galaxy A21 has 10 version while Galaxy A8 (2016) has Android 6.0 Marshmallow. The Samsung Galaxy A21 is a noticeably newer cellphone than Galaxy A8 (2016), but it is thicker and just a little heavier.
Galaxy A8 (2016) counts with a little bit better display than Samsung Galaxy A21, because although it has a little bit smaller screen, it also counts with more pixels per inch of display and a higher resolution of 1080 x 1920. Galaxy A21 counts with a little bit better hardware performance than Galaxy A8 (2016). Both of them have a 3 GB RAM and a Octa-Core CPU.
The Galaxy A21 has a better memory capacity to install applications and games or saving photos and videos than Galaxy A8 (2016), and although they both have the same 32 GB internal memory, the Galaxy A21 also has a slot for an SD memory card that allows up to 512 GB. The Galaxy A21 counts with a slightly better camera than Galaxy A8 (2016), and although they both have the same video frame rate, a same resolution camera and the same video quality, the Galaxy A21 also has a bigger aperture.
Galaxy A21 counts with improved battery lifetime than Galaxy A8 (2016), because it has a 21 percent bigger battery size.
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