This is a useful smart watch from Garmin. It's a lightweight model that doesn't weigh more than 87 g.
From Beaverbrooks
Garmin MARQ Men's Golfer (Gen 2) 46mm Titanium Men's Smartwatch 010-02648-21 - Silver/Green
Gadcet
Garmin MARQ® Golfer (Gen 2) 46mm Titanium Case Green Ceramic Bezel Strap Watch, New