I seem to recall learning that it is permissible to use a cell phone as a watch on Shabbos as long as the time is always displayed on the front and no buttons would need to be pressed in order to ...
The Pebble is a smart watch that connects to a smart-phone via Bluetooth and can deliver messages to your wrist. Am I allowed to wear it on Shabbat if I disconnect it from my phone? Think of it, then, ...
If a phone charger (or any electric adapter that is not connected to a device, for that matter) is plugged into an outlet, does unplugging it constitute any forbidden form of work, or is simply a ...