Compare phones
| Global Score | |
| 84.1 | 85 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10, 9.0 Pie |
| 2020-03-23 | 2019-06-18 |
| 6.26 x 2.96 x 0.35 inches | 6.11 x 2.91 x 0.31 inches |
| 6.63 ounces | 5.93 ounces |
| Midnight blue and Raven black | Midnight blue and Seawater blue |
| Plastic and Plastic | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.3 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 409 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 675 SM6150 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 460, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 612 GPU |
| 9.27 | 9.18 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 14.14 |
| Camera | |
| 48.00 MP + 20.00 MP | 32.00 MP + 16.00 MP |
| f/2.00 aperture | f/1.70 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.36 inches (1/2.8") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.55 | 10.78 |
| 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 Li - Polymer Battery | 3500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.44 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M40 is a little bit better than the Samsung Galaxy M21, having an 85 score against 84.1. Both of these devices come with Android OS (Operating System), but the Galaxy M40 has an older 10 version while Samsung Galaxy M21 has Android 11. Although the Galaxy M40 is older than Samsung Galaxy M21, it's design is thinner and lighter.
Galaxy M21 counts with just a bit better performance than Samsung Galaxy M40, although it has a lower amount of RAM memory, they both have 8 CPU cores. The Samsung Galaxy M21 counts with a little sharper display than Samsung Galaxy M40, because although it has a little lower screen pixel density, and they both have exactly the same 1080 x 2340 resolution, the Samsung Galaxy M21 also counts with a little bit bigger display.
The Galaxy M21 has just a bit better camera than Galaxy M40, because although it has a smaller aperture which is not recommended for taking photographs and videos in low-light situations, and they both have the same (4K) video definition and the same 30 frames per second video frame rates, the Galaxy M21 also counts with a way better resolution back facing camera and a much larger back-facing camera sensor taking much better quality videos and photographs.
Samsung Galaxy M40 has a lot bigger memory capacity for applications and games than Galaxy M21, and although they both have a slot for external memory cards that allows up to 512 GB, the Samsung Galaxy M40 also has 128 GB internal storage. Samsung Galaxy M21 counts with a way better battery lifetime than Galaxy M40, because it has a 71% more battery size.
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