Review on Wepro Waterproof Bands for Fitbit Charge 4/3/3 SE - 3-Pack, Small & Large Sizes, Stylish and Durable by Ali Saunders

WePro small and large straps. I chose a large strap because I figured it would be safer to have the extra length rather than risk getting a strap too short. Looking back, I think going with a small or a big would be fine with me. I attach a large spare WePro strap to the 2nd hole closest to the tracker (or the 10th hole from the end of the strap). I've uploaded a photo of a large WePro strap to give you a better idea of its length so you can compare it to your existing or vintage straps: Hole strap: 5 1/4" Buckle strap: 3 1/2" I couldn't remember what strap size I chose. my original Fitbit Charge 3 package. Must be a small strap as my original Fitbit strap is 4 1/8" with holes (and I attached it to the 6th hole from the end which is also the 6th hole from the end). Side that fits the Fitbit tracker). I hope this helps you get an idea. This can help you decide which bracelet size is best for your wrist circumference.