Love my G-shock GW-6900. Only weak point is the resin strap, which needs replacing every few years. I do not want a 'smart' watch that needs to be regularly charged and is bleating at me all the time.
On the needed adapter, webbing straps are intended to feed directly through the strap pins but g-shocks tend to have a very narrow and tight strap attach pitch(16mm), the webbing does not fit well and I wanted a wider 24mm strap. I do not want to be to damming, I think the narrow pitch is intended to be stronger than a wide pitch but it does make things inconvenient for us g-shock with webbing strap connoisseurs.