Garmin Varia™ RCT715, Bicycle Radar with Camera and Tail Light, Continuous Recording, Vehicle Detection ($299.99 w/ Free Ship)

See and record what’s behind you with a built-in camera that saves footage automatically if it detects an incident
Capture sharp, clear video in 1080p at 30 fps, or set resolution at 720p to extend battery life for longer rides
Easily view footage and control the camera via the Varia mobile app
Automatically detects incidents and saves footage before, during and after events if it detects an incident
Rearview radar detects vehicles approaching from behind up to 153 yards (140 meters) away and integrates with your Edge bike computer, select Garmin wearables or the Varia app on your paired compatible smartphone to provide alerts
Choose from three modes to maximize battery life: always-on, lights and radar only or radar-activated mode, which turns on the camera when an approaching car is detected
Ready to use right out of the box with included 16 GB SD card
Battery life up to 4 hours with radar and tail light on solid high or night flash, up to 5 hours on solid low and 6 hours on day flash — all with camera recording at 1080p

https://www.amazon.com/dp/B09T5VB…wisterOG=1