Non-invasive, easy, accurate.
Before YONO, women concerned about their BBT had to go through a complicated process of data collection. Now, women have the option of letting technology do all the work with much higher accuracy, because YONO measures core body temperature instead of skin temperature, which can easily be affected by ambient temperature. YONO is an easy to use, comfortable silicone-encased earpiece (similar to an ear bud) which is worn all night. Data is collected multiple times to determine lowest BBT and the data syncs when the earbud is stored in the base station the next morning. After a night of wearing YONO, users connect it to their smartphones and data automatically syncs to the iOS or Android application. The YONO app uses the readings to plot a monthly BBT chart, which analyzes the data and predicts the monthly fertile window.