Garmin Vivoactive 4s Review: So Many Fitness Features, So Little Time

Garmin created the best alternative to the Apple Watch when it came out with the Vivoactive 3 Music. For 2019, Garmin has updated that device with the Vivoactive 4 series, which includes the 45mm Vivoactive 4 and the 40mm Vivoactive 4s. Minor hardware changes accompany equally minor smartwatch software changes in this device, but that's because new fitness features steal the show.

Garmin added a ton of fitness improvements to this watch, including optional all-day pulse ox measurements, hydration tracking, new breathing exercises (that don't suck), new custom workouts, on-screen animations, and more. Unsurprisingly, all those improvements add up to the Vivoactive 4's $349 starting price, which is at least $100 more than what the Vivoactive 3 Music goes for nowadays.

Those features add a lot of value and push the Vivoactive 4 ahead of even the Apple Watch in terms of fitness, but I still have a soft spot for the Vivoactive 3 series—and plenty of happy users may skip this upgrade.

New hardware

I tested the 40mm Vivoactive 4s and immediately noticed the newly added sleek-and-shiny touches on the watch's case. The circumference now has a thin casing of metal, and the two side buttons are metal as well. The Vivoactive 4s includes an additional side button for lap, back, and menu access. While it took a few tries to get used to the new input method, I was able to navigate the watch using that side button, the other side button, and the color touchscreen fairly easily.

The display itself is a backlit, transflective memory-in-pixel panel, which, in comparison to LCD panels, uses technology that allows it to consume less power. That's one of the hardware factors that lets the Vivoactive 4s get up to seven days of battery life (by Garmin's estimation). It has essentially the same quality as previous Vivoactive displays, so the watch face is always visible, and you won't have trouble reading it while running outside in the sun.