I just upgraded to Samsung series 4 (44mm) from the Garmin Vivoactive 3. The watch faces are the same size, but the band for the Garmin is way more comfortable and fits
Garmin Vivoactive 3 Music review: The best multisport watch under £250 | Expert Reviews
Garmin Vivoactive 3 v Samsung Gear Sport: The sports smartwatch skirmish - Wareable
Garmin Forerunner 45 vs. Vivoactive 3: Which Should You Pick?
Samsung Galaxy Watch vs. Garmin Vivoactive 3: Which should you buy? | Android Central