Offsetting aside, the claimed carbon emissions of 7-12kg CO2e feels super low for a smart watch.

For comparison, this recipe of Tomatoes and Chickpeas on toast, when eaten in season from local produce, claims to reduce the carbon emission of the single meal by ~2.5kg, and this article would suggest that a single serloin steak is 5-10kg of CO2e.

I know eating beef is high impact, but basically the same as a smart watch which requires mining of precious metals and numerous transcontinental shipments? Not a chance.