Compare phones
| Global Score | |
| 73.1 | 78.9 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 10, 9.0 Pie, 8.1 Oreo |
| 2018-07-13 | 2019-02-05 |
| 6.03 x 3.00 x 0.34 inches | 6.16 x 2.93 x 0.35 inches |
| 6.38 ounces | 6.56 ounces |
| Blue | Charcoal black and Ocean blue |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 107.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.3 inches |
| 1280 x 720 pixels (HD) | 2340 x 1080 pixels |
| TFT | IPS LCD |
| 267 pixels per inch | 409 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Samsung Exynos 7 Octa 7904 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 2 GB RAM | 4 GB RAM |
| Mali-T830 MP1 GPU | Mali-G71 MP2 GPU |
| 8.73 | 8.91 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.44 | 11.74 |
| Camera | |
| 13.00 MP + 13.00 MP | 13.00 MP + 8.00 MP |
| f/1.70 aperture | f/1.90 aperture |
| 28.00mm focal length | 12.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.32 inches (1/3.1") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.13 | 9.02 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy M20 is a little bit better than Galaxy J7 Star, having a 78.9 score against 73.1. Even though the Galaxy M20 is better than Galaxy J7 Star, we must tell that it is also a bit thicker and just a bit heavier. These phones work with Android OS (Operating System), but Galaxy M20 has 10 version while Galaxy J7 Star has Android 9.0 Pie.
The Samsung Galaxy M20 counts with a bit superior processor than Samsung Galaxy J7 Star, and although they both have a Octa-Core processing unit, the Samsung Galaxy M20 also has a greater amount of RAM. Galaxy M20 features a sharper screen than Galaxy J7 Star, because it has a lot higher resolution of 1080 x 2340px, a way greater pixels density and a little bigger display.
Samsung Galaxy J7 Star shoots slightly better photographs and videos than Samsung Galaxy M20, and although they both have the same video definition, a 13 MP back-facing camera and the same 30 fps video frame rate, the Samsung Galaxy J7 Star also has a larger sensor taking more light and vivid colors and a larger diafragm aperture to capture better photos in low-light situations.
The Galaxy M20 has much more memory capacity for applications, games, photos and videos than Galaxy J7 Star, because it has a slot for an SD memory card that holds up to 512 GB and more internal storage capacity. Galaxy M20 has a much longer battery duration than Samsung Galaxy J7 Star, because it has a 5000mAh battery capacity.
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