Polar
Polar Loop - Review 2026
· By Endurance Wire
Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology. With the Loop, Polar is clearly coming for Whoop. Like its inspiration, the Polar Loop is a screenless fitness tracker that measures your activity, heart rate, and sleep with a design that combines a simple black wrist strap and a stainless steel case. At $199.99 for a one-time purchase and with no additional fee for most features, the Polar Loop significantly undercuts the Whoop 5.0 , which starts at $239 per year .