Thanks for your input guys, has anyone actually tried this? If so, with which smart watch. If not, does anyone have a smart watch and a Twiddler who could try it out and report back? Even though they don't seem to be making them anymore I do quite like the pebble watches, if anyone knows if that would work that would be great. Also if anyone could let me know what apps work well and which don't (ie whatsapp, sms, messenger etc).