The cost of ovulation tests will vary widely depending on the additional features it includes. Basic tests like the Wondfo ovulation test strips or the iProven ovulation predictor kit can run between $15 and $20. The price for wearables and high-tech devices, such as the Clearblue fertility monitor and the Ava fertility bracelet, can range between $100 and $300 and require additional expenses, such as a subscription or test strips (sold separately).