Galaxy Watch 4 App Guide app - We're obviously talking about Wear OS 3, the long-awaited culmination of Google's protracted attempt to fish its wearables platform out of the bowl, belly-up since it began to flounder in 2016 or so. But we're also talking about Samsung's wearable line, which hadn't changed much since the original Galaxy Watch debuted in 2018.

When Google and Samsung co-announced their partnership in May 2021, the former yielded some control of its OS to the Korean company, and the latter committed to replacing Tizen with Wear OS on all future smartwatches. Still, it wasn't clear whether it would yield positive results for the entire industry or just, well, Samsung.

And while the effect of Wear OS 3 on Google's business partners is still playing out, Samsung's smartwatches do benefit from some Google touches, though not as much as you think. Its position for best Android smartwatch has since been supplanted by the Galaxy Watch 5, but outside of Samsung's own watches and the new Pixel Watch, it still has no proper rivals over a year later.

Announced on August 11, 2021, and released August 27 of that year, the Samsung Galaxy Watch 4 and 4 Classic are available, respectively, from Samsung.com and several popular retailers, including Amazon, Best Buy, and Walmart. We've frequently seen both watches at a significant discount throughout 2022, so you may want to wait if you see them at full price.

While both units come in different sizes — 40 mm and 44 mm for the Watch 4, 42 mm and 46 mm for the Watch 4 Classic — in person, the extra 2 mm on the Classic is obtained through the rotating bezel, which, along with its stainless steel construction, is the primary design differentiator over the cheaper Watch 4.

Made of lighter aluminum, the Watch 4 comes in four colors: Pink Gold (40mm only), Silver, Black, and Green (44mm only). The Watch 4 Classic is limited to the more muted Silver or Black options in both sizes.

Given Samsung's iterative approach to hardware design over the past few years, it's no surprise that the Watch 4 looks like the Watch Active 2 and the Watch 4 Classic looks like the Watch 3. The names might be confusing, but there's a continuity here that I appreciate.

I reviewed the larger versions of both watches, and each of them comes with 20mm sport bands made of fluoroelastomer, a synthesized rubber that's generally comfortable and doesn't irritate the skin. (For some reason, the Classic comes with a ridged sport band with a traditional watch clasp, while the cheaper Watch 4 comes with a straighter band that terminates in the kind of loop clasp Apple popularized with the Apple Watch.)

The good news is that, unlike the Apple Watch, the lugs support any quick-release watch strap, and I got to work replacing the sport band on the Classic with a lovely blue leather band from an old Victorinox I still wear from time to time . You can also pair Galaxy Watch 5 bands with the Galaxy Watch 4, if you prefer having more options.

The protruding lugs look fantastic paired with a traditional band, but the fact that they curve down and inwards puts a pretty sizeable gap between the watch's side and your wrist, a necessary sleight of hand to ensure the watch's bulbous 3-in-1 health sensor makes solid contact with your wrist.

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