The smartwatch company, BLOCKS, does not want to compromise on features so they have created a modular smartwatch. You start with the Core, which is a fully functional smartwatch by itself, then add Modules to the strap to enhance functionality. The Modules become links in the strap and can include heart rate monitors, GPS tracking modules and extra batteries which can be swapped at any time. The creators have also made this an open platform so anyone can create their own modules for their own purposes.
A recently finished Kickstarter campaign raised $1.6 million, smashing the original $250,000. Shipping is planned for May 2016.