“Millions of traders and merchants do not accept card payments because they find the current hardware inconvenient or expensive,” Phos co-founder Ivo Gueorguiev tells TechCrunch. “Most of the merchants who accept card payments find the cost of ownership of the hardware high, [while the] current POS hardware offers no additional value, with the exception of very expensive smart terminals like Clover”.

https://techcrunch.com/2020/04/08/phos/