Smartlet One

One concept. Three different personalities

The first watch strap ecosystem

Smartlet One Classic

Made for those who seek balance: a morning coffee in the city, an afternoon meeting, a weekend with friends. Elegant without effort, it combines comfort and versatility.

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Smartlet One Shadow

Designed to follow every moment: the energy of a dawn ascent, the fast pace of the city, the quiet refinement of an evening. Forged in sandblasted black steel, it blends robustness and discretion.

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Smartlet One Titanium

Crafted from titanium, a noble and ultra-resistant metal prized in watchmaking and aerospace. Featherlight on the wrist yet solid as rock, its satin grey finish catches light with discreet refinement

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Smartlet One Accessories

Born from a simple idea: freedom of choice. With our connectors, you never compromise: integrate, adapt, expand.

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Heritage meets innovation

Every watch you wear holds meaning: an heirloom, a milestone, a memory. These are more than timepieces — they are part of who you are.

Smartlet keeps that connection alive, while adding the smart features that modern life demands: health insights, training data, and connected tools.

Compatibility & Security

Watches

Smartlet adapts to every watch with a standard lug width from 18mm to 24mm (Rolex, Zenith, Omega, Tudor, Tag Heuer and muc more...)

Wearables

Smartlet connects with the best smartwatches (Apple, Garmin, Google, Samsung, Huawei...) and fitness trackers (Fitbit, Whoop...).

Patented lock system

Smartlet leverages a proprierary patented system to secure your favorite timepieces and your wearables

Our vision

Elegance without compromise

We created Smartlet as a bridge between classical watchmaking and technology: it's a new way to wear your watches.

Performance without compromise

Modular

Switch watches in seconds. Smartlet’s patented system lets you swap between your smartwatch and your mechanical watch in seconds, without tools.

Discreet

Your mechanical watch taking the spotlight, while your smartwatch or fitness tracker hides under your wrist, yet always ready to display at the right moment.

Premium

A perfect balance of aesthetics and engineering. Designed in Paris and crafted with high-grade materials, Smartlet offers a luxurious feel and enduring performance

Wear it your way

Designed to be intuitive, your Smartlet is ready to wear in moments. Discover how to pair it with your favorite watches and smartwatches.

Our clients love Smartlet

★★★★★

Smartlet gave me the opportunity to enjoy my beloved timepieces, while monitoring my heart condition with my Apple watch. The product exceeds my expectations.

Steve

Orange, CA

★★★★★

As an airline pilot, I am always on the run. Smartlet gives me the ability to wander across the world with my mechanical watches, while enjoying the benefits of technology. I am a fan!

Rod

Chicago, Il

★★★★★

First, I want to applaud the team for taking what appears to be a simple idea and realizing it at such a high level. Smartlet was worth the wait, and perhaps precisely because we waited, the product reached such an impressive level of refinement.

Mizuki

Tokyo, Japan

★★★★★

I am highly satisfied with the performance and design. I honestly expected greater restriction or discomfort given its function, but the daily wear has been surprisingly smooth. Furthermore, the look and finish of the strap itself are excellent.

Maxim

Prague, Czech Republic

★★★★★

I am very impressed with it and have received positive comments about how unique it is. 

Josh

Austin, Texas

They talk about us

The gift of choice

A Smartlet gift card lets them pick the perfect match for their favorite timepiece.