[alphard]

With the same money you can buy a Pebble, and I'm sure that someone could easily write a Pebble app that vibrates every 5 minutes.

[nazgulnarsil]

I have not been able to find a good solution to having a personal vibrating timer with me. Requirements: Easy to set so no frictional cost to starting a pomodoro for instance. Does not beep. Keeps vibrating until silenced rather than vibrating once and then stopping (I don't notice these).

[graue]

Pebble has a timer app that meets all your requirements. I use it for pomodoros, laundry, steeping tea, cooking rice, etc. Unbelievably handy.

[nazgulnarsil]

I think that pushes me over the edge on pebble. Thanks!