The original collection

Smartlet One

Q: Which Smartlet One finish should I choose?

Classic is hand-brushed 316L steel and goes with everything. Shadow is the same steel in matte black PVD for a stealth look. Titanium is Grade 2, about 40% lighter, made for long wear. The mechanism and compatibility are identical across all three.

Q: Do I need tools to switch watches?

No. The first fitting takes about a minute. After that, swapping your mechanical watch or smartwatch in and out is done by hand in seconds.

Q: Can I wear Smartlet One with a dress watch?

Yes. Lug widths from 18 to 24mm cover dress and sport watches alike, and the smartwatch sits on the underside of the wrist, out of sight until you need it.

Q: Will Smartlet One fit my wrist?

The band adjusts like a standard metal bracelet, and additional straps can be pre-fitted one per watch, so you never resize twice.

Two watches, one wrist. Built for the watch you wear hardest.

Smartlet One is the original. Made of watchmaking-grade steel or titanium, engineered to carry a diver, a chronograph or a field watch through the day, with your smartwatch or fitness tracker working just below it. The same patented modular system carries every watch you own.

The collection

Designed in Paris, in three finishes: hand-brushed steel for the gentleman, matte black for the explorer, titanium for the performance addict.

The mechanism

How it works

Smartlet One holds a mechanical watch and a smartwatch on the same wrist through one patented connection. Fit it once, then switch watches by hand in seconds.

See how it works

Assembly

How to assemble your Smartlet

Smartlet One clicks together by hand, module by module and link by link. Adjust the length to your wrist, keeping both sides balanced.

See the full setup guide

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
Tupelo, Mississippi

Read all reviews

THE FIT.

Your watches. Already compatible.

Smartlet covers lug widths from 18 to 24 mm, which is the vast majority of watches and smartwatches on the market. Search your brand or your model to see it for yourself.

More than 100 compatible brands

You know your watch reference?

A few examples only. More than 100 brands and thousands of references are compatible, search yours above.