Read this Garmin Varia RTL515 vs. RCT715 comparison to determine which one is better for you. I used them both to find their pros & cons.
New Garmin Varia RCT715 tail light has a camera to record your crashes - BikeRadar
Garmin Varia RCT715 bike camera after 1 year
Garmin Varia RCT715 - It sees what you can't. Varia RCT715 rearview radar with camera and tail light continuously records your ride and automatically saves footage before, during and after events if it detects an incident. The bright tail light makes you more visible to motorists. And Varia RCT715 integrates seamlessly with your Garmin bike computer or the Varia mobile app on your paired compatible smartphone to alert you to traffic as you ride.
Garmin Varia RCT715 - Tail Light/Radar/Camera
Garmin Varia RCT715: Tested and Reviewed!
Garmin Varia RCT715 Camera + Radar In-Depth Review
Garmin Varia RTL515 and RVR315 Cycling Radar In-Depth Review
Garmin Varia RCT715 Camera + Radar In-Depth Review
Garmin Varia RCT715 review: a rear light, camera & radar all in one; average, good and actually fantastic
Garmin Varia RCT715 Camera + Radar In-Depth Review