Compare phones
| Global Score | |
| 73.1 | 79.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 11, 10, 9.0 Pie |
| 2018-07-13 | 2019-04-10 |
| 6.03 x 3.00 x 0.34 inches | 5.69 x 2.72 x 0.31 inches |
| 6.38 ounces | 4.94 ounces |
| Blue | Black, Blue, Coral and White |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 107.00 | -- |
| Display / Screen | |
| 5.5 inches | 5.9 inches |
| 1280 x 720 pixels (HD) | 2340 x 1080 pixels |
| TFT | Super AMOLED |
| 267 pixels per inch | 437 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.2 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Exynos 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 | 16.00 MP + 25.00 MP |
| f/1.70 aperture | f/1.70 aperture |
| 28.00mm focal length | 27.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.36 inches (1/2.8") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.13 | 9.46 |
| 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 | 3100mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.12 |
| 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, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A40 has a score of 79.6, which is a little bit better than the Galaxy J7 Star's 73.1 global score. The Galaxy A40 design is newer, extremely lighter and just a little bit thinner than the Galaxy J7 Star. Both of these phones work with Android OS (Operating System), but Galaxy A40 has an older 11 version and Galaxy J7 Star has Android 9.0 Pie.
The Samsung Galaxy A40 counts with a sharper screen than Galaxy J7 Star, because it has a much better resolution of 1080 x 2340px, a little bigger screen and a way greater pixels density. Galaxy A40 features a very superior memory for applications and games than Samsung Galaxy J7 Star, because it has 64 GB internal memory and a SD card slot that supports a maximum of 512 GB.
Samsung Galaxy A40 has a bit better hardware performance than Samsung Galaxy J7 Star, and although they both have the same number of cores, the Samsung Galaxy A40 also has 2 GB more RAM. The Galaxy A40 has a slightly better camera than Galaxy J7 Star, and although they both have the same camera aperture, the same video frame rate and the same (Full HD) video quality, the Galaxy A40 also has a bigger back camera sensor providing a better image quality and a camera with a higher 16 MP resolution.
The Galaxy J7 Star has just a bit better battery duration than Samsung Galaxy A40, because it has 3300mAh of battery capacity instead of 3100mAh.
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