No — it's designed to be lightweight, and in our own wear testing, testers reported forgetting it was there for most of the day.

We're using skin-safe, medical-grade adhesive designed for daily wear. As with any adhesive product, sensitivity can vary person to person, which is exactly why we're running real wear tests before finalizing the material.

In our testing, an early prototype held up through a full day, a workout, and a complete shower without issue. We're continuing to test this thoroughly before Nano is ready for everyone.

We're still finalizing this, but the goal is a full day of typical use between charges.

We're still finalizing the exact charging method — likely something simple like USB-C or a small charging case, similar to how a Whoop or wireless earbuds charge. More details to come as we lock in the design.

Roughly every 1–3 days, depending on activity level. The design is meant to make this simple — slide the old adhesive off, clip a fresh one on.

Yes — Nano connects via Bluetooth to your smartphone, so notifications, calls, and alerts come through automatically.

No — that's the whole point. Nano is designed to sit alongside whatever you already wear, not replace it.