Compare phones
| Global Score | |
| 83.3 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| -- | Android 10 |
| 2018-03-16 | 2020-09-11 |
| 5.81 x 2.70 x 0.33 inches | 6.45 x 3.00 x 0.37 inches |
| 5.75 ounces | 7.51 ounces |
| Burgundy red, Coral blue, Ice blue, Lilac purple, Midnight black, Sunrise gold and Titanium gray | Black and White |
| Aluminum and Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 158.00 | -- |
| Display / Screen | |
| 5.8 inches | 6.7 inches |
| 2960 x 1440 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED Plus |
| 568 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 8.9 | 8 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Adreno 630 GPU | Adreno 618 GPU |
| 9.54 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.34 | 14.14 |
| Camera | |
| 12.00 MP + 8.00 MP | 64.00 MP + 32.00 MP |
| f/1.50 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.23 | 11.88 |
| 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 8.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy M51 is just a bit better than the Galaxy S9, with a general score of 87.7 against 83.3. The Galaxy M51 is a noticeably newer device than Galaxy S9, but it is notably heavier and thicker. The Galaxy S9 counts with just a bit better processing power than Samsung Galaxy M51, although it has a smaller amount of RAM memory, they both have the same number of cores.
Samsung Galaxy S9 has a brighter screen than Samsung Galaxy M51, because although it has a little smaller screen, it also counts with a better pixel density and a higher 1440 x 2960 pixels resolution. The Galaxy M51 has a superior camera than Galaxy S9, because although it has a smaller aperture which is not nice for low-light images and videos and slower 30 fps video frame rate, and they both have the same video definition, the Galaxy M51 also counts with a camera with a much higher resolution and a way bigger back-facing camera sensor taking much higher quality pictures and videos.
Samsung Galaxy M51 features a much bigger storage for applications, games, photos and videos than Galaxy S9, because it has 128 GB internal memory capacity and a SD memory card expansion slot that holds a maximum of 512 GB. The Samsung Galaxy M51 features a much longer battery duration than Samsung Galaxy S9, because it has a 133% larger battery size.
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