The Mira Analyzer dynamically tracks hormone levels and gives you actual estrogen and LH levels throughout your cycle. Other monitors detect ovulation using a static hormones baseline, which can cause false positives or not be helpful for someone with low levels. With Mira you can see your unique hormone curves and get fertility alerts to remind you of the best days for conception or when to avoid unprotected sex. Mira allows you to see all phases of your cycle in addition to ovulation and Mira is PCOS friendly!