At that time most of us were guessing that the device could be the Galaxy A71. But now when the Galaxy A71 has already been released with the Model number A715, one thing is cleared that an upcoming device will have the model number G715. Now the unknown Samsung Galaxy SM-G715W is certified by the WiFi-Alliance. The device has been listed on their official site. According to the listing, the device is running the latest Android 10. The device supports both 2.4GHz and 5GHz WiFi bands.
There is no more information available about the device yet, so we only can wait for any official or unofficial leaks to know more about the device. Source