This Two-Faced Watch Band Lets You Hide an Apple Watch Under Your Rolex

The Consumer Electronics Show is never short on ambitious ideas, but Smartlet may be one of the more unusual ones this year: a modular watch strap that lets you wear a traditional mechanical watch and a smartwatch on the same wrist, simultaneously. One on top of the other.

The Paris-based startup announced Smartlet at the 2026 CES in Las Vegas, pitching it as a solution for people who love the look of an analog watch but also want the practicality of a smartwatch for notifications, fitness tracking and…