| Global Score | |
| 87.4 | 78.9 |
| Basic Information | |
| Samsung | Samsung |
| Android 5.0 | Android 10, 9.0 Pie, 8.1 Oreo |
| 2015-04-11 | 2019-02-05 |
| 5.65 x 2.78 x 0.27 inches | 6.16 x 2.93 x 0.35 inches |
| 4.87 ounces | 6.56 ounces |
| Black, Blue, Gold and White | Charcoal black and Ocean blue |
| Aluminium and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 252.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.3 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 576 pixels per inch | 409 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.9 | 8 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Samsung Exynos 7 Octa 7904 chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 3 GB (1600 MHz) RAM | 4 GB RAM |
| Mali-T760 MP8 (650 MHz) GPU | Mali-G71 MP2 GPU |
| 10.08 | 8.91 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 16.00 MP + 5.00 MP | 13.00 MP + 8.00 MP |
| f/1.90 aperture | f/1.90 aperture |
| 28.00mm focal length | 12.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.32 inches (1/3.1") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.01 | 9.02 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 2550mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.56 | 6.8 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope and Proximity Sensor |
| -- | FM Radio |
The Samsung Galaxy S6 is much better than the Galaxy M20, getting an 87.4 score against 78.9. Samsung Galaxy S6's construction is noticeably thinner and a lot lighter than the Galaxy M20, despite of the fact that it was released many years before. Both of these phones come with Android OS (operating system), but Samsung Galaxy S6 has the previous 5.0 version while Galaxy M20 has Android 10 version.
Samsung Galaxy S6 has a quite better performance than Galaxy M20, because although it has a lower amount of RAM, and they both have the same number of cores, the Samsung Galaxy S6 also counts with a 64 bits processing unit and a GPU. Galaxy S6 features an incredibly better display than Samsung Galaxy M20, because although it has a little bit smaller screen, it also counts with more pixels per screen inch and a better 2560 x 1440 resolution.
Galaxy S6 counts with a better camera than Galaxy M20, and although they both have a F1.9 aperture, the Galaxy S6 also has a higher resolution back-facing camera, a larger back-facing camera sensor capturing higher quality pictures and a lot higher 3840x2160 (4K) video quality. The Galaxy M20 counts with a quite bigger storage capacity to store more games and applications than Samsung Galaxy S6, because although it has just 64 GB internal storage capacity, it also counts with a slot for SD memory cards that supports up to 512 GB.
The Galaxy M20 counts with a really longer battery performance than Samsung Galaxy S6, because it has a 96 percent greater battery size.
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