I have a strange issue with Bluetooth connectivity between my new MOVE 2 and one of my IPhones. Everything works fine with my IPhone 13 ProMax running IOS 17.5.1 but my IPhone 7 running IOS 15.8.2 cannot seem to “find” the MOVE 2 – it doesn’t appear in the list of Bluetooth devices. 

Any ideas / suggestions very welcome - thanks !!