Coupled with the Hexoskin Smart Shirts & ProShirts, our newly updated Hexoskin Smart device is an advanced system for monitoring physiological data, with unparalleled precision, quality, and durability. The Hexoskin Smart device is also compatible with iOS and Android, as well as Apple Health App, Apple Watch, and Wear OS. This device can share live heart rate data with apps like MapMyRun, Runkeeper, and Runtastic. Technical Specifications: 36+ hours of battery life, rechargeable 30 days of raw data store-and-forward capacity Bluetooth LE™ 4.1 wireless technology transmits data to in-range mobile devices Free Hexoskin App on iOS & Android allows Real-time data visualization, Activity recording & Annotations (requires Android 3.0 and up, iOS 12.0 or later, iPadOS 12.0 or later, macOS 11.0 or later with Apple M1 chips, WatchOS 4.0 or later) Free Hexoskin User Dashboard for detailed raw and processed data visualizations. Grant access to family members, friends, and administrators. Export data in CSV, EDF, and Binary formats. Hexoskin OneSync Data Sync Software (requires OSX 10.5+ & Windows 10 or later) Compatible with 3rd party apps Dimensions: 13 x 42 x 72 mm (0.53" x 1.632" x 2.814") Weight: 40g (1.41 oz) Durable construction USB Cable included The Hexoskin Smart Device Measures: QRS events and RR Intervals with a 1-Lead electrocardiogram Heart rate (HR), Heart rate variability (HRV), and Heart rate recovery (HRR) Breathing rate, Tidal volume, Inspiration & expiration events Accelerometry, Actigraphy Step count, cadence, stride Activity level and calories burned Personal sleep assessment with Sleep Quality reporting.