Gear S3 Frontier vs Galaxy Watch3 - Technically it's a marginally thinner but smaller housing, narrower bezels, and weighs significantly less. It feels thinner than it looks, maybe due to the back
How to use a Samsung Gear S3 smartwatch with an iPhone—and why you might want to | Macworld
Samsung Gear S2 v Samsung Gear S3: The battle between new and old - Wareable
Samsung Gear S3 Classic, Frontier Smartwatches: PHOTOS, FEATURES
Samsung Gear S review: The smartwatch that's also a smartphone - CNET