Question: is apple watch series 4 compatible with o2?
Answer: Get Apple Watch on O2 Now you can get it on O2. Apple Watch is available to O2 Pay Monthly customers with an iPhone 6s or newer (Apple Watch Series 4 also compatible with iPhone 6). If you're new to O2, or don't have a compatible iPhone, don't worry, you can buy a new iPhone with us, then add your Apple Watch.