Here is a 4K camera and Bluetooth communication device designed with motorcycle riders in mind. The 10C Evo has a 4-way group intercom function. It can record 4K 30FPS video and lets you use Bluetooth to take calls, listen to music, and get turn-by-turn directions.
The device allows for 20 hours talk time on the road. You can preview and download files via built-in WiFi. The 10C EVO accepts MicroSD cards.