Apple watch series 4 compatible with iphone 15 pro max July 8, 2019 16 32 64 128 Apple watch series 4 with iphone 15 pro max Is apple watch 4 compatible with iphone 15 pro max Does apple watch series 4 work with iphone 15 pro max Can apple watch series 4 pair with iphone 15 pro max How to pair apple watch series 4 with iphone 15 pro max