Compare phones
| Global Score | |
| 88 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10 |
| 2020-08-06 | 2020-06-29 |
| 6.27 x 2.93 x 0.37 inches | 6.61 x 3.02 x 0.32 inches |
| 7.16 ounces | 6.81 ounces |
| Mirage black and Mirage blue | Black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Samsung Exynos 9611 chipset | Mediatek Helio P35 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Mali-G72 MP3 GPU | PowerVR GE8320 GPU |
| 9.36 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 9.84 |
| Camera | |
| 64.00 MP + 32.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.59 inches (1/1.7") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | -- |
| 12.1 | 9.35 |
| 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, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 6000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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 | FM Radio |
Comparison review
The Galaxy M31s is better than Samsung Galaxy A21, with a overall score of 88 against 76.1. Despite being the best in this review, it must be told that it's also a just a little bit heavier and thicker cellphone. Both of these devices include Android operating system, but Galaxy M31s has a more recent 11 version while Samsung Galaxy A21 has Android 10 version, providing a lot of extra features.
Galaxy M31s counts with a better looking display than Galaxy A21, and although they both have a same size display, the Galaxy M31s also has a greater screen pixel density and a way higher 1080 x 2400 pixels resolution. Galaxy M31s has a bit more powerful processing unit than Galaxy A21, and although they both have a Octa-Core processor, the Galaxy M31s also has more RAM memory.
The Galaxy M31s features a very superior camera than Galaxy A21, and although they both have a same size aperture, the Galaxy M31s also has a way larger sensor providing a lot better image quality, a much better 3840x2160 (4K) video definition and a much more mega-pixels camera. Galaxy M31s features a superior memory to store more games and applications than Samsung Galaxy A21, and although they both have a slot for external memory cards that holds up to 512 GB, the Galaxy M31s also has 128 GB internal memory.
The Galaxy M31s has a much better battery performance than Samsung Galaxy A21, because it has a 50 percent greater battery size.
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