Question: what is the difference between an apple watch series 1 and an apple watch series 3?
Answer: Specs: The Apple Watch 3 promises 70% faster performance than the S1P processor in the Series 1. There's also 85% better Wi-Fi performance and 50% better wireless energy efficiency. The Series 3 also includes an LTE cellular connection for the first time and an altimeter for elevation data during outdoor activities.