Compare phones
| Global Score | |
| 72 | 76.1 |
| Basic Information | |
| Samsung | |
| Android 11 | Android 10 |
| 2021-04-28 | 2020-06-29 |
| 6.40 x 2.94 x 0.33 inches | 6.61 x 3.02 x 0.32 inches |
| 6.53 ounces | 6.81 ounces |
| Supersonic Black and Supersonic blue | Black |
| -- | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 405 pixels per inch | 270 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 7.3 |
| Performance | |
| MediaTek Dimensity 700 MT6833V chipset | Mediatek Helio P35 chipset |
| Cortex-A76, 64-bit, 7 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Mali-G57 GPU | PowerVR GE8320 GPU |
| 9.18 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 15.42 | 9.84 |
| Camera | |
| 48.00 MP + 16.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| -- | 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 |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 10.56 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A21 has a general score of 76.1, which is a bit better than realme 8 5G's 72 score. Both phones in this comparison review have Android OS, but the Galaxy A21 has 10 version while realme 8 5G has Android 11. Galaxy A21's design is just a little bit thinner than the realme 8 5G, but it is just a little heavier and was released around 10 months before.
Realme 8 5G has a much better looking display than Samsung Galaxy A21, and although they both have a same size screen, the realme 8 5G also has a higher count of pixels per inch in the screen and a much higher 1080 x 2400 resolution. The realme 8 5G has a much better storage for applications and games than Samsung Galaxy A21, because it has 128 GB internal memory and an external memory slot that supports up to 1 TB.
Samsung Galaxy A21 counts with a little bit better performance than realme 8 5G, although it has 1 GB less RAM memory, they both have a Octa-Core processor. Realme 8 5G features greater battery performance than Galaxy A21, because it has a 25 percent bigger battery capacity. Realme 8 5G captures better videos and photos than Samsung Galaxy A21, and although they both have the same 1920x1080 video resolution, the same 30 fps video frame rates and the same diafragm aperture, the realme 8 5G also has a camera in the back with a lot higher 48 megapixels resolution.
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