Garmin 010-02172-21 vivoactive 4S 40mm smartwatch

What the 40 mm vivoactive 4S is for

The Garmin vivoactive 4S is a 40 mm GPS smartwatch built for people who want continuous health insight and phone-free music during workouts. It tracks energy levels, Pulse Ox, respiration, menstrual cycle, stress, sleep, estimated heart rate and hydration throughout the day. More than 20 preloaded sports apps cover yoga, running, swimming and other activities. Animated on-screen workouts guide you through strength, cardio, yoga and Pilates sessions without needing a phone nearby.

Capacity and headroom: music storage and battery

You can download songs and playlists from Spotify, Amazon Music or Deezer directly to the watch, though a premium subscription with the music provider may be required. Battery life reaches up to 7 days in smartwatch mode and up to 5 hours when using GPS and music together. Bluetooth headphones are needed for phone-free listening and are sold separately. The Pulse Ox sensor is not a medical device and is not intended for diagnosis or monitoring of any medical condition.

What this replaces and when the upgrade matters

The vivoactive 4S replaces a basic activity tracker or a non-GPS smartwatch that cannot store music or show animated workouts on the wrist. The jump is worth it if you want all-day health metrics, built-in GPS for outdoor sports and the ability to leave your phone behind while streaming music to wireless headphones. Buyers who need longer GPS-plus-music runtime or onboard maps will find those limits here.