For travel and most incidents, this dual-channel, front/rear setup is great. But no battery means no video if the 12-volt is interrupted

The Papago GoSafe S810 camera duo has more “safety” features than you can shake a stick at, including one I’d never even considered—stop sign recognition. Yup. It recognizes stop signs and pops the digital equivalent up on its display. Kind of fun, but as I’m wont to say: If you need this stuff, call a cab or wait for self-driving vehicles.

Admonishment aside, the $170 S810 is more than just fancy features.
…
Read full post here:
https://www.pcworld.com/article/3296381/consumer-electronics/papago-gosafe-s810-dash-cam-review.html