Eufy's first robot lawn mower ditches the boundary wire and antenna for a surprisingly easy setup. During the Amazon Prime Day event, it's available with massive discounts.

With these Wirecutter-approved picks under $100, you don’t have to spend a lot to get a good deal this Amazon Prime Day.

The Ultrahuman Ring Air is a well-rounded sleep and activity tracker, offering features that go head-to-head with the Oura Ring. It's seeing a 15% discount during Amazon's Prime Day.