i am trying to buy some sonoff (r3, mini, dual) from itead sotre, but they are sold out. So i have found on aliexpress a "Sonoff official store" (link) but i am not sure is a legit shop. I mean, i would like to be sure to buy sonoff by Itead and not some clone around the web, because i trust in Itead mark and in their developing an upgrades.
So, how could be sure?
PS: i've noticed i could buy a lot of sonoff either on other aliexpress shop than on amazon' sellers. Same doubt: which is legit?