Compare phones
| Global Score | |
| 74.6 | 85 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | Android 10, 9.0 Pie |
| -- | 2019-06-18 |
| 6.04 x 3.04 x 0.32 inches | 6.11 x 2.91 x 0.31 inches |
| 6.14 ounces | 5.93 ounces |
| 16 777 216 | Midnight blue and Seawater blue |
| Plastic | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.3 inches |
| 1280 x 720 pixels (HD) | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 267 pixels per inch | 409 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7884 chipset | Qualcomm Snapdragon 675 SM6150 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 460, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| ARM Mali-G71 GPU | Adreno 612 GPU |
| 8.82 | 9.18 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 14.14 |
| Camera | |
| 13.00 MP + 8.00 MP | 32.00 MP + 16.00 MP |
| f/1.90 aperture | f/1.70 aperture |
| 27.00mm 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 | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.02 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM, Dual SIM | Nano SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3000mAh Battery | 3500mAh Battery |
| Removable Battery | Non-Removable Battery |
| 4.96 | 5.44 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy M40 has a global score of 85, which is better than Samsung Galaxy J7 Duo's overall score of 74.6. Both phones we compare here include Android operating system, but the Galaxy M40 has an older 10 version while Samsung Galaxy J7 Duo has Android 8.0 Oreo. The Galaxy M40 is a a little lighter and a little thinner phone than the Samsung Galaxy J7 Duo.
The Galaxy M40 counts with a brighter screen than Galaxy J7 Duo, because it has a little larger display, a lot better screen pixel density and a much better resolution of 1080 x 2340px. The Samsung Galaxy M40 counts with a much better storage capacity to install applications and games than Galaxy J7 Duo, because it has a slot for an SD memory card that supports up to 512 GB and more internal storage capacity.
Galaxy M40 has a bit better hardware performance than Galaxy J7 Duo, and although they both have a Octa-Core CPU, the Galaxy M40 also has more RAM memory. Galaxy M40 features a superior camera than Galaxy J7 Duo, because it has a back-facing camera with way more mega-pixels, a much higher 3840x2160 video resolution, a larger back-facing camera sensor shooting higher quality videos and photographs and a bigger aperture to capture better photography in poorly lited situations.
The Galaxy M40 has a bit superior battery lifetime than Galaxy J7 Duo, because it has 3500mAh of battery capacity instead of 3000mAh.
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