Compare phones
| Global Score | |
| 84.1 | 77.8 |
| Basic Information | |
| Samsung | Motorola |
| Android 11, 10 | Android 11 |
| 2020-03-23 | 2021-12-20 |
| 6.26 x 2.96 x 0.35 inches | 6.71 x 3.01 x 0.36 inches |
| 6.63 ounces | 7.34 ounces |
| Midnight blue and Raven black | Aqua Blue, Bright Silver and Indigo Blue |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 6.8 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 387 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 480 SM4350 (8 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 460, 64-bit (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 619 GPU |
| 9.27 | 9.09 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 11.74 |
| Camera | |
| 48.00 MP + 20.00 MP | 50.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (240 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.55 | 11.22 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5000mAh Nano SIM Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy M21 is a bit better than the Moto G51 5G, having a overall score of 84.1 against 77.8. Both of these phones use the same Android 11 operating system, so they should provide very similar operating system features. Samsung Galaxy M21's construction is a little lighter and a little bit thinner than the Moto G51 5G, even though it was released only 21 months before.
The Galaxy M21 features a little sharper display than Moto G51 5G, because although it has a bit lower resolution of 1080 x 2340 pixels and a quite smaller screen, it also counts with a just a bit better quantity of pixels per display inch. The Moto G51 5G's storage for games and applications is very similar to Samsung Galaxy M21's one, both have a SD memory card expansion slot that admits up to 512 GB and equal internal memory.
Samsung Galaxy M21 has a little faster CPU than Moto G51 5G. They have the same RAM amount and a Octa-Core processor. The Samsung Galaxy M21 features just a bit better camera than Motorola Moto G51 5G, because although it has a lower 48 megapixels resolution camera and a tinier camera aperture which is not nice for low light captures and videos, it also counts with a lot higher video quality.
Galaxy M21 counts with greater battery lifetime than Moto G51 5G, because it has 6000mAh of battery capacity.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.