The VibraLITE3 vibrating watch provides a great silent reminder. It features an auto restart countdown mode that vibrates at any time interval you choose (e.g., every two hours). The watch vibrates for approximately 20 seconds, and then automatically resets itself to count down again. Easily pause the countdown timer when a reminder is not needed, and restart it without having to program your interval again! Works great when a silent alert is desired at fixed intervals. You may choose sound and/or vibration or even turn the alarm off without resetting the countdown timer. Standard size (watch face is 1.5 inches in diameter).

This is a great, inexpensive silent watch that can remind you to void at fixed intervals (e.g., every two hours). Remember that vibrating watches are the size of a standard watch due to the vibrating mechanisms. The watch face is 1.5 inches in diameter. The watches with Velcro fit a wrist about six inches in circumference or larger; you can punch extra holes in the leather band to fit wrists down to about 5 inches in circumference.