Apple Watch Series 6 (GPS + LTE) 40mm Graphite Stainless Steel Case & Milanese Loop (Pre-Owned)

The Apple Watch Series 6, released in 2020, brought significant upgrades with its faster S6 chip, brighter Always-On Retina display, and new health sensors for blood oxygen (SpO2) and electrical heart (ECG), alongside an always-on altimeter for elevation tracking, all while maintaining an 18-hour battery life and 50m water resistance for fitness and daily use. It offers GPS and optional Cellular models, supports faster charging, and enables features like Digital Car Keys with the U1 chip, making it a capable device even years after launch.