The Keen bracelet looks like a fitness tracker and uses motion sensors to detect its wearer’s specific behavior after a one-time training with a companion mobile app. When the device senses your hand doing your unwanted gesture, it vibrates to make you aware of what you are doing, giving you an opportunity to stop.
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:
Small/Medium
Fits kids and adults with small-medium wrists
min: 5.25 inches (13.3 cm)
max: 7.50 inches (19.0 cm)
Medium/Large
Fits adults with medium-large wrists
min: 6.15 inches (15.6 cm)
max: 8.50 inches (21.6 cm)
Small/Medium
Fits kids and adults with small-medium wrists
min: 5.1 inches (13.0 cm)
max: 6.8 inches (17.2 cm)
Medium/Large
Fits adults with medium-large wrists
min: 6.3 inches (16.0 cm)
max: 8.2 inches (20.8 cm)