Series 4 Apr 2026

Every model featured a black ceramic and sapphire crystal back for better cellular reception. 📉 The Legacy

While it no longer receives the latest watchOS updates, the Series 4 is credited with saving the product line. By prioritizing and screen real estate , Apple moved away from being a "mini-phone" on the wrist and toward being a life-saving tool. Series 4

The Series 4 introduced the design language Apple still uses today. Every model featured a black ceramic and sapphire

Automatically calls emergency services if you are unresponsive after a fall. Series 4