Compare phones
| Global Score | |
| 80.9 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 5.0 | Android 11, 10 |
| -- | 2020-03-23 |
| 5.78 x 2.90 x 0.35 inches | 6.26 x 2.96 x 0.35 inches |
| -- | 6.63 ounces |
| -- | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 245.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.4 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 576 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.9 | 8.4 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Exynos 9611 chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB (1600 MHz) RAM | 4 GB RAM |
| Mali-T760 MP8 (650 MHz) GPU | Mali-G72 MP3 GPU |
| 10.08 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSD external memory slot | microSDXC (up to 512 GB) external memory slot |
| 5.8 | 11.74 |
| Camera | |
| 16.00 MP + 5.00 MP | 48.00 MP + 20.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 8.47 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 3500mAh Battery | 6000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 5.44 | 7.52 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M21 has a global score of 84.1, which is a little bit better than Samsung Galaxy S6 Active's 80.9 overall score. Samsung Galaxy M21's design has the same thickness than the Samsung Galaxy S6 Active, but it's a lot heavier. These devices have Android OS (Operating System), but Samsung Galaxy M21 has 11 version and Samsung Galaxy S6 Active has Android 5.0 version, so it gives lots of additional features.
The Galaxy S6 Active has a better looking display than Samsung Galaxy M21, because although it has a much smaller screen, it also counts with a better screen density and a higher 2560 x 1440px resolution. Samsung Galaxy M21 counts with a way bigger memory capacity for apps and games than Galaxy S6 Active, because it has 32 GB more internal memory capacity.
The Galaxy S6 Active features a bit faster processing unit than Samsung Galaxy M21, because although it has 1 GB lesser RAM, and they both have a Octa-Core processor, the Galaxy S6 Active also counts with an additional graphics co-processor and a 64 bits processor. The Galaxy M21 captures way better videos and photos than Samsung Galaxy S6 Active, because although it has a smaller aperture which is not nice for low light captures and video, and they both have the same video frame rates and the same video definition, the Galaxy M21 also counts with a much larger sensor providing a much better image quality and a back-facing camera with a much higher 48 mega-pixels resolution.
Galaxy M21 features a really longer battery performance than Samsung Galaxy S6 Active, because it has 6000mAh of battery capacity against 3500mAh.
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