The Apple Watch Series 3 is officially discontinued, obsolete, and no longer receives software or security updates as of 2026, making it unsuitable for general use. While used units can be found via third-party marketplaces for approximately $20 to $90, consumers are advised to purchase supported alternatives like the Apple Watch SE 3. For more on when to purchase, visit Macworld . Apple Watch Series 3 In 2026! (Still Worth It?) (Review)