Casio Bluetooth Watches

Bluetooth models pair with the Casio Watches app to set their own time, change time zone automatically when you land, and handle daylight saving without you touching a button.

The connection is there for setting and logging rather than notifications, which is why battery life is still measured in months and years. Most of these run Tough Solar as well.

Priced in pounds, delivered duty paid. Standard UK delivery is fully tracked and usually arrives in 6–12 days.