How Keen Works

Practice Makes Progress

The Keen smart bracelet senses your behavior and sends a vibration.
Once aware, choose healthier activities to retrain your brain:
HabitAware Keen Sizing Guide

Not sure which size is right for you?

It's important that Keen has a snug fit on your wrist. Here's a quick guide to help you decide which bracelet size to order:


Sporty Keen (original)