Compare phones
| Global Score | |
| 77 | 84.1 |
| Basic Information | |
| Motorola | Samsung |
| Android 11 | Android 11, 10 |
| 2021-12-06 | 2020-03-23 |
| 6.37 x 2.91 x 0.34 inches | 6.26 x 2.96 x 0.35 inches |
| 6.38 ounces | 6.63 ounces |
| Baby Blue and Mineral Grey | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 411 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| MediaTek Helio G85 MT6769Z (12 nm) chipset | Exynos 9611 chipset |
| Cortex, 64-bit (Octa-Core 2000 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G52 MC2 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 13.02 | 11.74 |
| Camera | |
| 50.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 10.45 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 5000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | 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 |
| FM Radio | FM Radio |
Comparison review
Samsung Galaxy M21 has a global score of 84.1, which is slightly better than the Motorola Moto G31's 77 overall score. Samsung Galaxy M21 is an older, a little thicker and a bit heavier cellphone than Motorola Moto G31. Both of these phones have the same Android 11 OS (operating system), so you shouldn't perceive any difference regarding operating system features.
The Samsung Galaxy M21 features a little better processing power than Moto G31. They have 4 GB of RAM memory and 8 processing cores. Samsung Galaxy M21 has a bit sharper display than Motorola Moto G31, although it has a bit lower resolution of 1080 x 2340 and a just a little inferior amount of pixels per inch in the screen, they both have a screen of the same size.
The Samsung Galaxy M21 takes better videos and photos than Moto G31, because although it has a back-facing camera with a lower resolution and a tinier aperture which is not recommended for shooting pictures in poorly lited environments, it also counts with a way higher 3840x2160 (4K) video resolution.
Moto G31 features more memory to install applications and games than Samsung Galaxy M21, and although they both have exactly the same internal storage, the Moto G31 also has a SD memory slot that supports up to 1 TB. The Samsung Galaxy M21 has longer battery duration than Moto G31, because it has 6000mAh of battery capacity.
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