Watch strap weight: what the Smartlet really adds to your wrist
Founder & CEO, Smartlet - CentraleSupelec engineer - Concours Lepine 2025, Awarded - CES 2026
Contents
Weight is the first question people ask about wearing two watches on one bracelet, usually with a slight wince, as if the answer will involve a forearm workout. It does not. The figures are published, they are modest, and they sit inside a range anyone who owns a steel bracelet already wears. The more interesting part is what the figures include. And what they leave out.
- 85 to 95 g. The Smartlet with the connected device, per its product page.
- 60 to 100 g. The range the same page gives for a standard stainless steel bracelet.
- Smartwatches are light. Apple lists the Apple Watch Ultra 2 at 61.4 g; Google lists the Pixel Watch 3 at 31.0 g or 36.7 g without band.
- Height is the real difference. 9 to 12 mm on the back of the wrist, against 4 to 8 mm for a steel bracelet.
- Titanium is the lighter metal. At the same volume, about 4.5 g/cm3 against 7.9 g/cm3 for 316 steel.
The numbers, as published
The Smartlet product page gives two sets of figures side by side: its own, and a benchmark for a standard stainless steel bracelet. Keeping both on the same page is the honest way to compare, because it stops anyone setting their best number against somebody else's worst.
| Measure | Smartlet (with connected device) | Standard steel bracelet |
|---|---|---|
| Weight | 85 to 95 g | 60 to 100 g |
| Height on the back of the wrist | 9 to 12 mm | 4 to 8 mm |
Weight lands inside the steel bracelet range, in its upper half. Height is another story. The Smartlet is clearly taller there, by a few millimetres, because the smartwatch sits underneath the wrist in the central part of the bracelet, where a clasp would normally be. We looked at that difference closely in watch strap comfort.
What the smartwatch weighs on its own
Smartwatches are lighter than most people expect. Much lighter. Apple lists the Apple Watch Ultra 2 at 61.4 g in natural titanium (Apple Support). Google lists the Pixel Watch 3 at 31.0 g for the 41 mm case and 36.7 g for the 45 mm, without band (Google Store).
Those figures matter because the alternative to the Smartlet is rarely no smartwatch at all. It is a smartwatch on its own strap, on the other wrist or in a drawer, plus a mechanical watch on its own bracelet. The Smartlet replaces both straps with one bracelet: the mechanical watch on top, its watch adapters seated in the lug holes in place of the spring bars, and the smartwatch underneath.
The 85 to 95 g covers the Smartlet with the connected device. The mechanical watch head comes on top of that, exactly as it would on any bracelet, and its weight depends on the watch.
Why the distribution matters
A heavy watch on a light strap tends to roll toward the outside of the wrist, because all the mass sits at twelve o'clock. On the Smartlet, part of the weight sits underneath, where the smartwatch takes the place of the clasp. The bracelet is sized to the wrist by its links, so it sits snug rather than sliding.
No magic. Nobody is claiming that two watches weigh less than one, and anyone who tells you otherwise has a scale that needs servicing; what you get is simply a bracelet that carries something useful in the place where a folding clasp used to sit, doing nothing but holding the ends together.
Choosing a finish
The Classic is hand-brushed SS316L, the Shadow the same steel in black matte PVD, and the Titanium is Grade 2 titanium. Titanium is the lighter metal: at the same volume it weighs about 4.5 g/cm3, against 7.9 g/cm3 for 316 steel. If weight is your first concern, look there. If it is not, pick the finish that suits the watch on top. Easy.
Every figure in this article comes from the Smartlet product page, Apple or Google. None of them is our own estimate.
- Steel watch heads: the Classic matches most brushed cases.
- Dark dials and black cases: the Shadow.
- Titanium cases, or the lightest metal: the Titanium.
Where to go next
Check your watch in the brand compatibility guide, from the Rolex Submariner to the Omega Seamaster 300M and the Tudor Black Bay. For the smartwatch, the smartwatch index covers every compatible device, including the Apple Watch, whose adapters come in both sizes in the box. Lug widths are explained in the complete lug width guide.
Smartlet, Bronze Medal at Concours Lepine 2025 and shown at CES 2026, weighs what a steel bracelet weighs, with a smartwatch built in.
