Compare phones
| Global Score | |
| 72 | 77.7 |
| Basic Information | |
| Samsung | |
| Android 11 | Android 10 |
| 2021-04-28 | 2020-06-19 |
| 6.40 x 2.94 x 0.33 inches | 6.44 x 2.96 x 0.35 inches |
| 6.53 ounces | 6.77 ounces |
| Supersonic Black and Supersonic blue | Black, Blue, Red and White |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | TFT |
| 405 pixels per inch | 270 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 7.2 |
| Performance | |
| MediaTek Dimensity 700 MT6833V chipset | Samsung Exynos 850 chipset |
| Cortex-A76, 64-bit, 7 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Mali-G57 GPU | Mali-G76 GPU |
| 9.18 | 9.09 |
| 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 | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 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 |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 10.56 | 10.78 |
| 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, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 6.8 |
| 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, Gyroscope and Proximity Sensor |
Comparison review
Galaxy A21s has a global score of 77.7, which is slightly better than realme 8 5G's 72 overall score. Although it's the best phone in this comparison, the Galaxy A21s design is older, a bit thicker and a little bit heavier than the realme 8 5G. Both of these phones have Android OS (Operating System), but the Galaxy A21s has the previous 10 version while realme 8 5G has Android 11 version.
Realme 8 5G counts with a more vivid display than Samsung Galaxy A21s, and although they both have a screen of the same size, the realme 8 5G also has a lot higher 1080 x 2400 resolution and a better pixels density. The realme 8 5G counts with just a little better performance than Galaxy A21s, and although they both have 8 CPU cores, the realme 8 5G also has a greater amount of RAM memory.
The Samsung Galaxy A21s counts with just a bit better camera than realme 8 5G, although it has a smaller aperture which is not recommended for low light captures and video, they both have a same resolution camera, the same (Full HD) video resolution and the same video frame rates. The realme 8 5G features much more storage to store more games and applications than Galaxy A21s, because it has more internal storage capacity and an external memory card slot that admits a maximum of 1 TB.
The realme 8 5G and the Galaxy A21s feature extremely similar battery performance.
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