Prime Day is the idea time for a smart home upgrade, and the Ring Battery Doorbell Plus is almost half-price in this deal.

But I've also come across some alternative, pretty outstanding, Amazon smart ring deals slipping under the radar. With prices ...

The Oura Ring 4 hasn't been discounted until now and is currently seeing up to a $75 discount on select finishes during Amazon's Prime Day. This deal will likely only run during Prime Day savings.

You can get $50 off the high-tech Halo dog collar that keeps track of your pup's location and activity levels as a Prime Day deal.

First came the Oura Ring, which was followed by, most notably, the Ultrahuman Air Ring. After working as a health and fitness ...