Devices and Sensors
spren can ingest many data types, but the primary data input is a building block of heart rate variability called “inter beat intervals” (ibis) or “r r intervals” (rrs) when properly analyzed, this raw data is a window into the nervous, cardiovascular and respiratory systems more info https //elitehrv com/science there are many compatible devices and sensors that can generate the accurate signal data needed, so we won’t be able to list them all, but here are the current most common compatible devices sensor spren compatibility your company's device contact us docid\ tygd1tpbwypuytprxhog5 apple watch (series 5, 6, 7) compatible most chest strap monitors (polar, garmin, wahoo, etc ) compatible iphone's built in camera (iphone 6 and newer) via the spren vision™ ios sdk compatible android built in camera (various devices) via the spren vision™ android sdk compatible other smartwatches (polar, garmin, wahoo, etc ) in development google fitbit (sense, versa 3, versa 2, charge 5, luxe, or inspire 2) in development closed ecosystems (whoop, oura, etc ) in development other devices (earbuds, sleep mats, and more; contact us for a list) many compatible want to use your own device? for hrv biomarker insights, we recommend the device has inter beat intervals (ibis) or rr intervals that are not smoothed or averaged a minimum of 50hz sampling rate for ppg signals or 250hz sampling rate for ecg signals please contact us for full device compatibility testing