Fitbit just launched the new Fitbit Versa 4 in September, with a slimmer look and more workout options than its predecessor. Walmart has slashed its price by $80, meaning you’ll pay just $150 for the Fitbit Versa 4 for a limited time. This device has a ton of great features, including built-in GPS, more than 40 exercise modes, sleep tracking, heart-rate monitoring, temperature readings, SpO2 health metrics and more. The Versa 4 is also water-resistant up to 50 meters and gets up to six days of battery life per charge.