DH asked if I could find him an inexpensive fitbit. He started a new job, and wants to know how much he's moving since switching (he went from restaurant work to traveling most of the day and sales. He wants to make sure his diabetes doesn't get worse if he's moving significantly less)

I got him a fitbit flex in the large size, but it's still too small.

Has anyone had luck finding extra large bands? I tried Amazon, but the results seem to be mostly just "large" or "one size" (which are just as small as the large)

I wondered if anyone's been through something similar and found a good solution they can link to. Thanks!