| Global Score | |
| 73.1 | 77.3 |
| Basic Information | |
| Samsung | Sony |
| Android 9.0 Pie, 8.0 Oreo | Android 4.4.4 |
| 2018-07-13 | 2014-09-03 |
| 6.03 x 3.00 x 0.34 inches | 5.85 x 2.89 x 0.35 inches |
| 6.38 ounces | 6.02 ounces |
| Blue | Black and White |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 107.00 | $ 170.00 |
| Display / Screen | |
| 5.5 inches | 5.2 inches |
| 1280 x 720 pixels (HD) | 1080 x 1920 pixels (Full HD) |
| TFT | IPS LCD |
| 267 pixels per inch | 424 pixels per inch |
| -- | 592 cd/m2 brightness |
| No touch screen | Capacitive, Multi-touch |
| 7.1 | 9.6 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Qualcomm Snapdragon 801 8974-AC chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Krait 400 (Quad-Core 2500 MHz) processor |
| 2 GB RAM | 3 GB (933 MHz) RAM |
| Mali-T830 MP1 GPU | Adreno 330 (450 MHz) GPU |
| 8.73 | 9.45 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSD, microSDHC, microSDXC (up to 128 GB) external memory slot |
| 9.44 | 8.12 |
| Camera | |
| 13.00 MP + 13.00 MP | 20.70 MP + 2.20 MP |
| f/1.70 aperture | f/2.00 aperture |
| 28.00mm focal length | 25.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.43 inches (1/2.3") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 9.13 | 10.34 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM |
| Nano SIM | Nano SIM |
| 6.6 | 7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 3200mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| -- | 920 hours standby time 21 hours talk time |
| 5.28 | 5.2 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 4.0 |
| GPS | GPS |
| NFC | NFC |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Xperia Z3 is a bit better than Samsung Galaxy J7 Star, having a general score of 77.3 against 73.1. These devices have Android OS (Operating System), but the Xperia Z3 has older 4.4.4 version and Samsung Galaxy J7 Star has Android 9.0 Pie version. Despite of the fact Xperia Z3 is noticeably older and just a little thicker than Samsung Galaxy J7 Star, it's body is still a little bit lighter.
The Sony Xperia Z3 has a little better hardware performance than Galaxy J7 Star, because although it has an inferior number of cores (but faster), it also counts with an extra graphics processor and a larger amount of RAM. The Xperia Z3 has an incredibly better looking screen than Galaxy J7 Star, because although it has a bit smaller display, it also counts with a way higher pixels density and a way better resolution of 1920 x 1080 pixels.
Galaxy J7 Star has more storage for apps and games than Xperia Z3, and although they both have equal internal memory, the Galaxy J7 Star also has a SD memory slot that allows a maximum of 400 GB. Sony Xperia Z3 captures much better videos and photos than Galaxy J7 Star, because although it has a tinier camera aperture which is not good for low light images, it also counts with a way higher 3840x2160 video resolution, a lot larger sensor capturing lot better quality videos and photographs and a back camera with a lot higher resolution.
Galaxy J7 Star features a bit superior battery lifetime than Sony Xperia Z3, because it has a 3300mAh battery size.
Although Xperia Z3 is a better device, it is way more expensive than Galaxy J7 Star, and it doesn't have such a good quality/price relation as the Galaxy J7 Star. If you want to save some money, you can buy Galaxy J7 Star, letting go a few specs and features, but you will get the most out of your savings.
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