Yves Saint Laurent has range of lifestyle functions including opening car door . Also has software which will avoid need to pay with cash at till points . System is tied to user 's bank account and can pay for trains or bus fares . Company hopes it has winner on hands after rival products ' sales slumped .
Apple Watch has range of lifestyle functions including opening car door . Also has software which will avoid need to pay with cash at till points . System is tied to user 's bank account and can pay for trains or bus fares . Company hopes it has winner on hands after rival products ' sales slumped .