Smartlet creates modular watch straps that let people wear a traditional watch and a smartwatch together on one wrist. Its patented connection system is designed to pair mechanical watches with smart devices while preserving their existing functions, including notifications and health tracking. The range includes Smartlet One, Smartlet Jizai and the limited, numbered Smartlet One Eclipse, along with connectors, straps and clasps.

Smartlet One is compatible with metal watches with standard lug widths from 18 to 24 mm and supports devices such as Apple Watch, Samsung Galaxy Watch, Garmin, Polar and Whoop. Available finishes include brushed steel, matte black and titanium; Jizai is offered in metal, leather, fabric and silicone. Customers can use Smartlet’s compatibility guidance and concierge service for help with watch fit, sizing and orders.

The connectors are installed once, and the bracelet can then be attached or changed without tools. Smartlet ships worldwide, offers a 14-day return period and provides product warranties, with coverage varying by region