$104.49 at Walmart $149.95 Save $45.46 With a large display and interchangeable bands the Fitbit Charge 2 is a versatile ...

Not only are there scores of Fitbit fitness trackers and smartwatches, but Google has transformed the line-up. Its Pixel Watch ... The Charge 6 is Fitbit’s flagship wristband, but not much ...

But if you have an irregular period, you'd need to take an ovulation test and input the results for a truly accurate reading... which is kinda annoying. The Fitbit also can't track pregnancy —some ...