Compare phones
| Global Score | |
| 79.8 | 84.1 |
| Basic Information | |
| Motorola | Samsung |
| Android 10, 9.0 Pie | Android 11, 10 |
| 2019-06-06 | 2020-03-23 |
| 6.22 x 2.95 x 0.29 inches | 6.26 x 2.96 x 0.35 inches |
| 5.82 ounces | 6.63 ounces |
| Gray and White | Midnight blue and Raven black |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 500.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| OLED | Super AMOLED |
| 403 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 675 chipset | Exynos 9611 chipset |
| Kryo 460, 64-bit, 11 nm (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 |
| Adreno 612 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 11.74 |
| Camera | |
| 48.00 MP + 25.00 MP | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (120 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.55 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3600mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.6 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M21 is slightly better than the Moto Z4, with an 84.1 score against 79.8. Both of these phones have Android OS (operating system), but Galaxy M21 has the newer 11 version and Moto Z4 has Android 10 version, so it provides the user lots of additional features and better performance. Galaxy M21's body is newer, but heavier and somewhat thicker than Moto Z4.
The Galaxy M21 has just a bit better looking display than Moto Z4. They have the same exact 1080 x 2340 resolution, a same size screen and a greater count of pixels per inch in the screen. Moto Z4 features a much better memory capacity to store more games and applications than Samsung Galaxy M21, and although they both have a SD memory slot that admits up to 512 GB, the Moto Z4 also has 64 GB more internal memory capacity.
The Samsung Galaxy M21 counts with a bit better hardware performance than Motorola Moto Z4. Both have the same RAM amount and 8 cpu cores. The Samsung Galaxy M21 counts with a much better battery duration than Motorola Moto Z4, because it has 6000mAh of battery capacity. The Samsung Galaxy M21's camera is just as good as the Moto Z4 one, and although the Samsung Galaxy M21 has a tinier camera aperture which is not good for shooting pictures and video in low light situations, they both have the same 3840x2160 video quality, the same 30 frames per second video frame rates, the same resolution back-facing camera and a 0.5 inches camera sensor.
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