Clearblue Connected Ovulation Test System is the only test with connectivity that typically identifies 4 or more fertile days each cycle (1). These are the days leading up to and including the day of ovulation. It does this by accurately tracking 2 key fertility hormones – luteinising hormone (LH) and estrogen - instead of just LH like other ovulation kits do. You can only conceive on a few days each cycle and every woman is different, so knowing in advance the days when you personally have the best chance of getting pregnant can make all the difference. Clearblue Connected Ovulation Test System has the unique benefit of connecting via Bluetooth to your phone – it’s the first and only test system to track 2 key hormones and connect to your phone. Results are synced and displayed on your phone. You can also view a monthly calendar and cycle comparison charts as well as having the ability to set smart reminders. (1) In a study of 87 women, 4 or more fertile days were identified in 80% of cycles using actual cycle length