Expandables

Daysy is a registered medical device according to EN ISO 13485.

All of our devices are produced in Germany, inspected by the FDA, and undergo extensive testing by certified third-party agencies.

Other fertility tracking algorithms use AI and guess when irregularities are detected.

Daysy’s algorithm considers your past average temperature and can handle occasional outliers to tell you when you’re fertile and not.

If there isn’t enough data to give you a red (fertile) or green light (not fertile) with certainty, Daysy will display a yellow light (learning or cycle fluctuation). Because your fertility is not a guessing game.

With basal body temperature, the slightest change can make all the difference.

• Mauris id mollis tellus, a porttitor ex.
• Nullam blandit vehicula ante in elementum.
• Donec iaculis, orci id tincidunt ornare, nisl diam sagittis velit, vel convallis sapien justo at sem.

Unlike other BBT thermometers, Daysy combines a sophisticated sensor and an algorithm with 35+ years of development. She measures to a hundredth of a decimal point (+/- 0.018 °C) to detect hormonal fluctuations during your menstrual cycle. All in under 60 seconds.

With basal body temperature, the slightest change can make all the difference.

• Mauris id mollis tellus, a porttitor ex.
• Nullam blandit vehicula ante in elementum.
• Donec iaculis, orci id tincidunt ornare, nisl diam sagittis velit, vel convallis sapien justo at sem.

Unlike other BBT thermometers, Daysy combines a sophisticated sensor and an algorithm with 35+ years of development. She measures to a hundredth of a decimal point (+/- 0.018 °C) to detect hormonal fluctuations during your menstrual cycle. All in under 60 seconds.