Smartlet One – Modular watch & smartwatch bracelet

Smartlet One is the first patented modular strap that allows you to wear your mechanical watch and your smartwatch on the same wrist. A connector at each end: one side attaches to your watch (18–24 mm lug width), the other to your smartwatch (connector included, matching the finish).

Designed and manufactured in Paris with watchmaking tolerances, Smartlet One installs in 30 seconds, without tools or modifications to your watches. Patented system, awarded at the 2025 Concours Lépine and selected for CES 2026.

How to choose: specify your smartwatch / tracker AND the lug width of your mechanical watch — we will provide both matching connectors.

Three finishes:

• Classic — brushed SS316L stainless steel.
• Shadow — matte sandblasted black SS316L steel.
• Titanium — satin-finished grade 2 titanium.

Key features

• Two watches, zero compromise.
• 30-second installation, tool-free, reversible.
• Compatible with 100+ brands (18–24 mm lug width) and major smartwatches (Apple, Samsung, Garmin, Whoop, Fitbit…).
• 2-year warranty, water-resistant.

Watches, smartwatches, and trackers not included. Verify compatibility before ordering.