Compare phones
| Global Score | |
| 76.1 | 81.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | -- |
| 2020-06-29 | 2017-04-21 |
| 6.61 x 3.02 x 0.32 inches | 5.86 x 2.68 x 0.31 inches |
| 6.81 ounces | 5.47 ounces |
| Black | Arctic silver, Burgundy red, Coral blue, Maple gold, Midnight black, Orchid gray and Rose pink |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass 5) |
| -- | Scratch-Resistant Glass |
| $ 194.00 | $ 173.00 |
| Display / Screen | |
| 6.5 inches | 5.8 inches |
| 1600 x 720 pixels | 2960 x 1440 pixels |
| IPS LCD | Super AMOLED |
| 270 pixels per inch | 568 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.9 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 835 MSM8998 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 280, 64-bit, 10 nm (Octa-Core 2350 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| PowerVR GE8320 GPU | Adreno 540 GPU |
| 9.27 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 9.84 | 10.78 |
| Camera | |
| 16.00 MP + 13.00 MP | 12.00 MP + 8.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.35 | 9.79 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0, EDR |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy S8 has a score of 81.7, which is a little bit better than Samsung Galaxy A21's global score of 76.1. Despite of the fact that Galaxy S8 is much older than the Samsung Galaxy A21, it's design is a bit thinner and lighter. Galaxy S8 counts with a processing unit that is very similar to the Samsung Galaxy A21 one, and although the Galaxy S8 has 1 GB more RAM memory, they both have a Octa-Core processor.
Galaxy S8 features an incredibly better display than Samsung Galaxy A21, because although it has a little smaller display, it also counts with a way higher 1440 x 2960 pixels resolution and a lot higher display pixels density. Samsung Galaxy S8 has a bit bigger memory capacity for applications and games than Galaxy A21, because although it has a slot for an SD memory card that allows a maximum of 256 GB against 512 GB, it also counts with 64 GB internal memory.
The Galaxy S8 takes clearer pictures and videos than Samsung Galaxy A21, because although it has a back-facing camera with a way lower 12 mega pixels resolution, it also counts with a larger back-facing camera sensor capturing more light and vivid colors, a larger camera aperture and a way higher video quality.
The Samsung Galaxy A21 has greater battery duration than Galaxy S8, because it has a 33 percent more battery size.
In addition to being the best phone of the ones we compare here, Samsung Galaxy S8 is also cheap compared to the Galaxy A21.
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