The Aukey DRA3 dashcam fits over your existing rear-view mirror and includes a second camera on a 23-foot long lead for use as a reverse monitor. It works great - and it has a neat trick as well.

The Cobra SC 400D dash cam comes with a rear-view accessory and built-in Amazon's Alexa. It's currently on sale from Best Buy for $300 after a $100 discount.

The 70mai A410 dash cam comes with a front camera with 2.5K resolution and a rear camera with 1080p resolution. It's on sale for only $64 from Amazon after a 54% discount.