Michael Miller

This Garmin GPS watch for endurance athletes gets a long battery life, built-in music and mobile payments.

This GPS watch geared toward triathletes is pricey, but worth the investment.

Though it’s expensive, the Whoop Strap is worth the price for actual or would-be athletes who want to maximize performance and minimize illness and injury.

While it looks a bit bland, the inexpensive Polar M200 is a capable GPS running watch with both a heart-rate monitor and smartphone notifications.