Question: what is the difference between gps and cellular in apple watch series 5?
Answer: 1-4 of 4 Answers. The gps watch only receives calls, emails, texts, etc when it is close to your cell phone. It is then similar to the series 1 and 2. With the gps/cellular model, you actually activate a telephone line on the watch and it can work when you cell phone is not in your possession.