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.
I run a 5600, I am not super familiar with the rest of the g-shock line but the straps do appear to be the weak point of the whole thing. I found an adapter that allows me to use nato style nylon webbing straps. I mainly wanted it so I could replace the straps easier, but I have not had a strap break yet. A word of caution and a recommendation. The first adapter I got was also made of resin and broke in about the same amount of time the resin straps did(~ year) I found a company called ritchie strap that sells a steel adapter which has so far lasted ~ 6 years.
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.
