Compare phones
| Global Score | |
| 73.1 | 78.8 |
| Basic Information | |
| Samsung | Microsoft |
| Android 9.0 Pie, 8.0 Oreo | Android 10 |
| 2018-07-13 | 2020-09-10 |
| 6.03 x 3.00 x 0.34 inches | 7.36 x 5.72 x 0.19 inches |
| 6.38 ounces | 8.82 ounces |
| Blue | Glacier |
| -- | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 107.00 | $ 540.00 |
| Display / Screen | |
| 5.5 inches | 8.1 inches |
| 1280 x 720 pixels (HD) | 2700 x 1800 pixels |
| TFT | AMOLED |
| 267 pixels per inch | 401 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.2 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Qualcomm Snapdragon 855 SM8150 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 2 GB RAM | 6 GB RAM |
| Mali-T830 MP1 GPU | Adreno 640 GPU |
| 8.73 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | No SD card slot |
| 9.44 | 10.1 |
| Camera | |
| 13.00 MP + 13.00 MP | 11.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 28.00mm focal length | -- |
| 0.33 inches (1/3.06") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 9.13 | 8.91 |
| 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 | 3577mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 5.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Microsoft Surface Duo is a bit better than the Galaxy J7 Star, with a 78.8 score against 73.1. Even though Microsoft Surface Duo is heavier than the Galaxy J7 Star, it's way thinner and also way newer. Both phones we compare here have Android OS (operating system), but the Microsoft Surface Duo has 10 version while Galaxy J7 Star has Android 9.0 Pie version.
Microsoft Surface Duo counts with a sharper screen than Galaxy J7 Star, because it has a lot bigger display, a way better 1800 x 2700px resolution and way more pixels per inch in the display. The Microsoft Surface Duo has a slightly bigger storage for games and applications than Samsung Galaxy J7 Star, because although it has no SD memory slot, it also counts with 128 GB internal storage capacity.
Microsoft Surface Duo features a better performing processor than Galaxy J7 Star, and although they both have 8 CPU cores, the Microsoft Surface Duo also has a higher amount of RAM. The Microsoft Surface Duo has a little better battery lifetime than Samsung Galaxy J7 Star, because it has 3577mAh of battery capacity against 3300mAh.
Galaxy J7 Star counts with a bit better camera than Microsoft Surface Duo, because although it has slower video frame rate, and they both have the same (Full HD) video definition, the Galaxy J7 Star also counts with a higher 13 megapixels resolution back-facing camera and a larger aperture for better captures and video in low-light situations.
Although Microsoft Surface Duo is a better device, it is a lot more expensive than Galaxy J7 Star, and it doesn't have such a good quality/price relation as Galaxy J7 Star. So if you want that extra specs and features, you can buy the Microsoft Surface Duo, but if you don't you can save a couple dollars and get the Galaxy J7 Star, giving up a couple specifications.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.