UTONE — the wristband that remembers your day
UTONE wristband on a sunlit windowsill: a braided oatmeal band with a polished steel module

Understand your day the way you lived it.

A wristband that hears your day and writes down what happened. So the details are there when you, or your AI, need them.

Early-bird pricing for the waitlist. Launch news only. Privacy Policy

Your AI knows your emails and chats. It has no idea what goes on off-screen.

UTONE fills in the rest.

The moment

A moment is more than what was said.

Most of your day happens between conversations. UTONE hears that part too.

Tuesday, October 20. Pick a moment to see and hear it.

  • Hands slicing a lemon at a bright kitchen counter
    UTONE heard
    knife on a boardrunning wateryour voice on a call
    And wrote down

    Breakfast at home

    You offered to drive Mom to the airport on Saturday.

    Fifteen minutes in the kitchen, Mom on the phone.

  • A hand holding a yellow rail in a subway car
    UTONE heard
    street traffictrain brakesstation announcements
    And wrote down

    A quiet ride in

    Forty quiet minutes before a day of talking.

    From your stop to Union Square, no calls, no conversations.

  • Two people exchanging a business card at a conference
    UTONE heard
    hall reverbPA announcementsoverlapping voices
    And wrote down

    Industry conference

    Sarah wants a proposal by Friday.

    You met after the morning panel and talked for twenty minutes.

  • A runner outdoors at sunset
    UTONE heard
    your footstepsyour breathingtraffic fading out
    And wrote down

    Evening run

    Your first run in three weeks.

    Thirty-five minutes outside, on your own.

  • Friends raising glasses over a dinner table
    UTONE heard
    silverware and glassesfour voicesbursts of laughter
    And wrote down

    Dinner with old friends

    You all agreed to make it a monthly thing.

    Two and a half hours with three old friends, mostly stories from school.

Sample sounds for illustration. UTONE keeps text, not the sound itself.

The app

Every part of your day, written up for you.

A timeline for every day, and a story when one is worth retelling. Nothing to type.

01 · Today

Every event, in order

Each with a time and a short summary, quiet stretches included.

02 · This month

The month, at a glance

What changed this month, and what only shows up over weeks.

03 · Stories

A day worth retelling

Part of your day, written up as an illustrated story.

App screens show sample data. ClickTap any screen to see it larger.

The assistant

Ask about the patterns, people and plans in your life.

Each answer is built from events across weeks. You can see which ones it used.

01 · Notice

Spot what’s changing

Patterns across weeks, and what’s behind them.

02 · Focus

Find your best hours

When and where your real work gets done.

03 · Plan

Plan around how you live

A week built on your habits, not good intentions.

App screens show sample data. ClickTap any screen to see it larger.

The ecosystem

Your context. Any AI you choose.

What UTONE writes down becomes your context. Any AI that accepts outside context can work from it.

The UTONE wristband

UTONEpersonal context

02Any model, any agentAI assistantsCustom GPTs in ChatGPTAutomationsZapier · n8n · Make, into Notion and moreCoding agentsClaude Code · CursorAgent buildersOpenAI Agents SDK · LangChain+Your own agentor anything else you connect
03What that unlocks

Your AI can write from days you never wrote down.

You ask · ChatGPT

Write a travel journal of my Lisbon trip.

From your UTONE context
  • Thu, Sep 17Tram bells and steep streets, three hours on foot
  • Fri, Sep 18Market stalls, a hissing grill, a two-hour lunch
  • Sat, Sep 19Wind and waves at the coast, then a guitar and a singer late at night
Result · Google Docs
Lisbon, three daysDraft · 1,200 words
Thu · Alfama

Three hours uphill, and a tram bell behind us at nearly every corner.

🔔 tram bells · footsteps on stone
Fri · the market

Lunch next to the grill turned into a two-hour thing.

🔥 grill hiss · vendors calling
Sat · fado night

A room barely bigger than a kitchen. Nobody talked between songs.

🎶 one guitar · one voice · silence

+ 9 more moments, each with its own illustration

Examples of tools you can connect, not partnerships. Once connected, that tool’s own privacy policy applies.

Privacy

Barely there. Clearly on.

A light shows whenever it’s on. One press pauses it.

The UTONE band worn alongside a smartwatch, carrying a laptop
Close-up of the module with its light onThe band on its charging cable on a bedside table

Nothing hidden

One light, one button. No screen. Nothing you can’t see.

Audio isn’t kept

Deleted once it’s processed. Only the text about your day stays.

You decide who sees it

Other AIs and apps get nothing until you connect them yourself.

Goes with anything

Wear it next to a watch, a band or a bracelet. Nothing has to come off.

UTONE does not sell or share your personal data, and does not use it to train AI models unless you choose to. Privacy Policy

How it works

From sound to text in four steps.

What happens to the sound of your day, from the band to your AI.

  1. 01

    On the band

    Sound is encrypted on the band, kept only until it uploads. It can’t be played back.

  2. 02

    In the cloud

    The audio becomes structured text about your day, then it’s deleted. Only the text stays.

  3. 03

    In your app

    Your days, weeks and months, the way you lived them. Delete anything, anytime.

  4. 04

    To the AI you choose

    Share it with any AI that accepts outside context. Each one sees only what you allow.

The team

Meet the team.

Built by people who have shipped wearables at scale. Based in Beijing, Shanghai and Shenzhen.

Founder & CEOXiaolong Yue

Formerly on the founding team of Xiaomi Wearables. Later led its sensor and large-model teams.

Co-founder & CTOXinyu Tang

Formerly at Xiaomi, working on large language models and audio understanding.

Co-founder & COOJian Dong

Former senior product manager at Xiaomi, behind some of its best-selling products.

Head of Business & GrowthLin Zhu

Formerly a program manager at Amazon, with an MBA from CEIBS. Runs go-to-market, partnerships and operations.

There are seven of us across Beijing, Shanghai and Shenzhen. Besides the four above, the team includes a systems architect who has taken nine watches and bands from concept to mass production, a hardware engineer with a background in chip design, and a cloud architect who has built large-scale systems.

Be the first to wear it.

Join the waitlist for early-bird pricing. We’ll email you about the launch and nothing else. Privacy Policy

Questions people ask.

Does it record the people around me?

Yes, it can pick up the voices of people near you. The audio is deleted after processing, and only text is kept. A light shows whenever UTONE is on, and one press pauses it.

In some places, including about a dozen US states such as California, Florida, Illinois, Massachusetts, Pennsylvania and Washington, everyone in a conversation has to agree before it’s recorded. Deleting the audio afterward doesn’t change that. It’s up to you to get consent where it’s required, and to pause when someone asks.

How is it different from other AI wearables?

Most are built around meetings and what people say. UTONE follows your whole day, work and life, including the sounds around you and the stretches when no one’s talking. You choose which AI tools can use it.

What happens to my data?

Audio is deleted once it’s processed. The text about your day is stored encrypted, and you can export or delete it anytime. UTONE does not sell or share your personal data, and does not use it to train AI models unless you choose to. Details are in our Privacy Policy.

How does it know who’s who?

From context, such as the names people use with each other. It sometimes gets a name wrong, and you can rename or remove anyone anytime.

Does it work with the AI tools I already use?

If they can take in outside context, yes. Most AI assistants can, and so can automations and agents you build. Other apps and devices depend on what they support. You decide what each one sees.

Can I wear it with my smartwatch?

Yes. It’s slim enough for the same wrist and works on its own. It doesn’t measure heart rate, so it won’t compete with your watch.

How long does the battery last, and which phones does it work with?

About 12 to 18 hours on a charge, enough for a full day. It works with iPhone at launch, and we’re working on Android.

How much will it cost? Is there a subscription?

We’ll announce pricing, including whether there’s a subscription, before launch. Waitlist members get early-bird pricing first.

Something else? Email us at hello@utone.io. We read every message.