NWOT!!! A continual fitness monitor!! Brand new. Typically sells for $200+. The best fitness tracker on the market which tracks your sleep cycles more accurately than anything else out there. This is the WHOOP 4.0 version in perfect condition with all of the attachments. Band, charger, the watch itself!!! Adjustable and new, so no problem fitting any size wrist. An amazing amazing technology!! NWOT