Calibre is a technological marvel that measures & analyzes your breath in real time, bringing you unprecedented insights into your metabolism and health.
Free shipping across the US
Due to high demand, currently all orders are fulfilled within 14 days.
We want to reward your patience and for purchasing us now!
Starting today the following incentives are in place for the first 1,000 purchasers or until April 25th, whichever comes first.
Use Calibre for a month, and if you don't like it, we will take it back, no questions asked!
If you are in the US, free shipping is always an option!
We're confident in our product. If anything happens or something isn't up to par, let us know and we'll make it right!