TLDR: Make sure the strap you buy is a quick release strap for a smart watch.

For smartwatches, ensure you purchase a Quick Release or two piece strap to ensure it doesn't cover your heart rate sensors.

A two piece strap is literally just that... it has two pieces and attaches to each end of the watch.

A single piece strap will travel underneath the watch which will block heart rate sensors. If you don't care about your heart rate, you can most definitely use these as well.

Be sure not to confuse the strap width with strap length.

Brand Model Strap Width
Apple All


Some straps will fit without Apple adapters, some will require them. The listing will tell you if adapters are required.
Fossil Gen 5 - Carlyle 22mm
Fossil Gen 5 - Garrett 22mm
Fossil Gen 5 - Julianna 22mm
Fossil Hybrid Smartwatch HR Charter 18mm
Fossil Hybrid Smartwatch HR Collider 22mm
Fossil Hybrid Smartwatch HR Latitude 24mm
Fossil Hybrid Smartwatch Machine 24mm
Fossil Hybrid Smartwatch Neutra 22mm
Fossil Sport 41mm 18mm
Fossil Sport 43mm 22mm
Garmin Approach S40 20mm
Garmin Approach S60 Purchase Adapter here
Garmin D2 Charlie Purchase Adapter here
Garmin Descent Purchase Adapter here
Garmin Fenix (All) Purchase Adapter here
Garmin Forerunner 245 20mm
Garmin Forerunner 645 20mm
Garmin Forerunner 745 Purchase Adapter here
Garmin Forerunner 935 Purchase Adapter here
Garmin Forerunner 945 Purchase Adapter here
Garmin Foretrex Purchase Adapter here
Garmin Hero Legacy 40mm 18mm
Garmin Hero Legacy 45mm 22mm
Garmin Quatix Purchase Adapter here
Garmin Tactix Purchase Adapter here
Garmin Venu 20mm
Garmin Venu Sq 20mm
Garmin Vivoactive 3 20mm
Garmin Vivoactive 4 22mm
Garmin Vivoactive 4S 18mm
Garmin Vivomove 20mm
Garmin Vivomove 3 20mm
Garmin Vivomove 3S 18mm
Garmin Vivomove HR 20mm
Huawei Watch GT 1 42mm 22mm
Huawei Watch GT 1 46mm 22mm
Huawei Watch GT 2 42mm 20mm
Huawei Watch GT 2 46mm 22mm
Samsung Galaxy Active 20mm
Samsung Galaxy Active2 40mm 20mm
Samsung Galaxy Active2 44mm 20mm
Samsung Galaxy Gear S3 22mm
Samsung Galaxy Gear Sport 20mm
Samsung Galaxy Watch 3 41mm 20mm
Samsung Galaxy Watch 3 45mm 22mm
Samsung Galaxy Watch 42mm 20mm
Samsung Galaxy Watch 46mm 22mm