I really like this watch but it’s too big are there any smaller?

you can check out the Shark Mini styles if you want something smaller

Website says 100m and Amazon says 30m Resistant. Which one is it?

The correct specification is 100 meters. Sorry for the confusion, Amazon seems to want to randomly change this information from time to time, but we'll request they change it back to the correct specification.

It has a countdown timer that counts down from a set number. These intervals are preset at 1 minute, 3, 5, 10, 15, 20, 25, 30, 45, and 60 minutes. It also has a stop watch feature that lets you start, stop, and continue again to time events