| Global Score | |
| 87.7 | 81.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 10 | Android 5.0, 4.4 |
| 2020-09-11 | 2014-09-03 |
| 6.45 x 3.00 x 0.37 inches | 6.04 x 3.09 x 0.33 inches |
| 7.51 ounces | 6.21 ounces |
| Black and White | Black, Gold, Pink and White |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 269.00 |
| Display / Screen | |
| 6.7 inches | 5.7 inches |
| 2340 x 1080 pixels | 1440 x 2560 pixels (Quad HD / 2K) |
| Super AMOLED Plus | Super AMOLED |
| 385 pixels per inch | 515 pixels per inch |
| No touch screen | Capacitive, Multi-touch |
| 8 | 9.5 |
| Performance | |
| Qualcomm Snapdragon 730 SM7150-AA chipset | Qualcomm Snapdragon 805 APQ8084 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Krait 450 (Quad-Core 2700 MHz) processor |
| 6 GB RAM | 3 GB (825 MHz) RAM |
| Adreno 618 GPU | Adreno 420 (500 MHz) GPU |
| 9.27 | 9.54 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSD, microSDHC, microSDXC (up to 128 GB) external memory slot |
| 14.14 | 8.12 |
| Camera | |
| 64.00 MP + 32.00 MP | 16.00 MP + 3.70 MP |
| f/1.80 aperture | f/2.20 aperture |
| 26.00mm focal length | 31.00mm focal length |
| 0.57 inches (1/1.76") sensor | 0.38 inches (1/2.6") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (60 fps) (Full HD) slow motion video |
| 11.88 | 10.01 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM |
| Nano SIM, Dual SIM | Micro SIM |
| 6.7 | 7 |
| Battery Life | |
| 7000mAh Battery | 3220mAh Li-Ion Battery |
| Non-Removable Battery | Removable Battery |
| -- | 20 hours talk time |
| 8.32 | 5.2 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.1, EDR |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
The Galaxy M51 is just a bit better than Galaxy Note 4, getting a general score of 87.7 against 81.6. Galaxy M51's construction is a lot newer, but thicker and somewhat heavier than Galaxy Note 4. These devices work with Android OS (operating system), but the Galaxy M51 has a newer 10 version while Galaxy Note 4 has Android 5.0 version, so it gives you some extra features.
Samsung Galaxy Note 4 has a sharper display than Galaxy M51, because although it has a quite smaller screen, it also counts with a higher display density and a higher 2560 x 1440 resolution. Samsung Galaxy Note 4 features a bit superior processing unit than Galaxy M51, because although it has a lower number of cores and 3 GB lesser RAM memory, it also counts with an additional GPU.
The Galaxy M51 features a better camera than Galaxy Note 4, and although they both have the same 3840x2160 (4K) video resolution and the same 30 fps video frame rates, the Galaxy M51 also has a way bigger camera sensor, a bigger aperture to take better low-light photography and videos and a camera with way more megapixels.
The Galaxy M51 counts with a much better memory for applications and games than Galaxy Note 4, because it has 128 GB internal storage and a slot for external memory cards that supports a maximum of 512 GB. Samsung Galaxy M51 features a superior battery duration than Galaxy Note 4, because it has 7000mAh of battery capacity instead of 3220mAh.
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