BUSINESSBusiness·Wall Street JournalHow a Little-Known Finnish Company Became One of the World's Hottest Gadget StartupsOura’s smart ring measures heart health and can predict when you may be getting sickLean RJan 18Read at Wall Street Journal→BUSINESSBusiness·Wall Street JournalHow a Little-Known Finnish Company Became One of the World's Hottest Gadget StartupsOura’s smart ring measures heart health and can predict when you may be getting sickLean RJan 18Read at Wall Street Journal→