Frequently Asked Questions

To bring you back to yourself, a few seconds at a time. Most of the day runs on autopilot, and by the time you notice, the day is already gone. Sou interrupts that — gently, physically, without asking anything of you. It’s not a tracker and it’s not a coach. Just a quiet nudge to return.

It builds, it doesn’t strike. One reminder won’t change your day — a string of them does. Most people notice it first in small things: shoulders dropping, one slower breath before reacting, remembering to look up. By the afternoon, the difference is hard to miss.

A few seconds you give back to yourself. A breath. A stretch. A sip of water. Looking up from your phone. Checking in — what do I actually need right now? Sou’s vibration opens the door. What you do with it is yours.

A piece of jewellery with a quiet pulse inside. Wear it as a bracelet, anklet, or necklace — the bands are exchangeable, so it fits whatever you’re wearing. No app, no screen, no tracking. Just a reminder, built into something you’d wear anyway.

Anyone who feels life moving faster than they’d like. You don’t need to meditate, you don’t need a routine, and you don’t need to believe in anything. You just need to be willing to come back to the moment when it taps you on the shoulder.

We don’t want price to be the only reason someone misses out on Sou. If cost is a barrier for you, reach out to hannes@joinsou.com — we’ll walk you through a support process (this involves sharing some details on your situation, like income) to get you a Sou at a price that works.

Sou is built by a small team in Barcelona. Sou came out of founder Hannes’ own years-long search for a way to stay present through a demanding, distracted life. Our first production was funded by friends and family as well as a community that backed our Kickstarter campaign.

Sou is manufactured in partnership with Acrivia, an experienced end-to-end production partner with US and China-based operations.

A smart ring asks you to open an app and read data about yourself. A meditation app asks you to set aside time and sit down. Sou asks for neither. There’s no screen, no session, no log to check — just a reminder, built into something you already wear. It’s not a calmer way to track your stress. It’s a way to stop needing to.

A small pulse inside the core gives you a smooth, brief vibration at 30–60 min intervals (randomised) throughout the day — close enough together to stay with you, spaced out enough that it never feels routine. You don’t set anything. It just happens.

Nothing forced. The vibration interrupts autopilot — it’s an invitation. What you do next is up to you. Breathe. Stretch. Smile. Drink water. Check in with how you’re actually doing. Sou doesn’t tell you what to do, because it doesn’t need to. If you take a moment to feel, you will know.

No. No app, no pairing, no screen, no account. You put it on and it works. That’s the whole experience.

Yes. The same core clasps onto a bracelet, anklet, or necklace band, and the bands are exchangeable. Wear it wherever it fits naturally into your day, and switch it up whenever you want.

No sound. The vibration is smooth and contained inside the core — felt by you, not seen or heard by anyone around you. That’s deliberate. Sou is built to be private, not performative.

Yes. Sou has a simple on/off. Beyond that, there’s nothing to manage or configure.

Yes, definitely. Sou is built for an active life — IP67 water resistant, rated for up to 1 meter submerged for 30 minutes. Shower, sweat, rain, casual swimming: all covered.

Yes. The modular design means you’re never locked into one look — swap between necklace, wrist, and ankle bands, in multiple colours, whenever you want.

Sou is IP67 water resistant — that covers everyday life, rain, and casual swimming (1 meter depth for 30 minutes). It’s not built for diving.

Yes. Sou is built with an active lifestyle in mind, and every material choice was made with durability first.

7+ days on a single charge. Charging takes about an hour, using the USB-C charging cradle included with Sou.

The core is die-cast zinc alloy, finished in gold, silver, or black. It’s REACH compliant for everyday skin contact, with enough weight to feel real in your hand.

One size, fully adjustable. The wrist and ankle bands adjust from 13–23 cm circumference, fitting most people comfortably.

Yes. Every material is chosen with prolonged skin contact in mind. The core is REACH-compliant zinc alloy (Zamak 3, general-purpose grade 1) — safe for everyday wear.

No. Sou is not a medical device, and it isn’t a substitute for medical care, therapy, or treatment of any kind. It’s a presence reminder — a small physical nudge back to yourself, nothing more, nothing less.

Sou contains no wireless components: no Bluetooth, WiFi, or NFC, so there is no radio-frequency transmission. The only electronics inside are a small battery and a haptic motor. Sou carry both CE certification (EU) and FCC certification (US), including checks for electromagnetic compliance.

Yes. Sou is one core, worn three ways. When a band wears out, you replace the band, not the whole piece. The core itself is built to handle drops, scratches, and daily wear for years, not seasons.

Packaging is designed to be minimal and recyclable — no excess plastic, no unnecessary inserts.

First batch ships an estimated October 2026. Check your order confirmation for the most current estimate for your specific order.

Yes, worldwide. We warehouse in the US and Spain, so shipping cost depends on where you’re ordering from relative to those two points.

We offer a 30-day return policy. If Sou doesn’t feel right for you, return it in its original condition within 30 days of delivery for a full refund, minus shipping costs.