When you install the SnapBridge app and establish a wireless connection between a SnapBridge-supported camera and a smart device, you can upload images captured with the camera to the smart device or operate the camera remotely with the smart device.
Installing the SnapBridge app
For detailed explanations about the SnapBridge app
Download the app from the Apple App Store® for iOS, and from Google Play™ for Android™.
The “SnapBridge 360/170 app” cannot be used with this camera.
1: You can view the online help, as well as configure the app’s settings.
2: Primarily perform connection settings for smart devices and cameras.
3: You can play back images uploaded from the camera.
See the SnapBridge app online help.
https://nikonimglib.com/snbr/onlinehelp/en/index.html