CB fertility monitor vs CB advanced digital opk

Hey everyone,

My husband and I have been TTC for a little over a year and a half. Been a very difficult time as a lot of you know. I am 33 and my DH is 38. We took a break for a few months from TTC as we have recently purchased a house and were focusing on that. Also needed a break from it as it was taking a huge emotional toll. Long story short, we have now started trying again and I am looking to track my ovulation better/more accurately. I have used CB advanced digital and have found it to be pretty good but I keep wondering if maybe I should invest in the fertility monitor instead. Has anyone had experience using either or both and prefers one over the other? Is the monitor more accurate? I looked online but didn't find any clear info. Hoping you ladies might have better insight 😀. Thanks in advance for any feedback/advice.

Baby dust to all!!