adopter

noun

Etymology: Etymology tree English adopt Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English adopter From adopt + -er.

1. one who adopts

   “Google says the smartglasses are still in "beta" – prototype – form, despite being openly on sale, and that it wants early adopters to buy and use them and report back problems and suggestions so it can shape the future of the product, which is expected to eventually cost about the same as the average smartphone.”