--- title: Azume One – A 2.8mm sensor that turns any regular... description: Azume One is a 2.8mm thick sensor module that attaches to the back of any wristwatch to add health tracking. It measures 30mm in diameter and weighs 5 grams,... canonical: https://daily.dev/posts/azume-one-a-2-8mm-sensor-that-turns-any-regular-wristwatch-into-a-health-tracker-crowdfunding--j3su6zqco twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Azume One – A 2.8mm sensor that turns any regular wristwatch into a health tracker (Crowdfunding) | daily.dev og:description: Azume One is a 2.8mm thick sensor module that attaches to the back of any wristwatch to add health tracking. It measures 30mm in diameter and weighs 5 grams,... og:url: https://daily.dev/posts/azume-one-a-2-8mm-sensor-that-turns-any-regular-wristwatch-into-a-health-tracker-crowdfunding--j3su6zqco og:image: https://api.daily.dev/og/posts/j3su6zqCo.png og:image:alt: Azume One – A 2.8mm sensor that turns any regular wristwatch into a health tracker (Crowdfunding) og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Azume One – A 2.8mm sensor that turns any regular wristwatch into a health tracker (Crowdfunding) **[CNX Software](https://daily.dev/sources/cnx-software)** · 4 min read · 0 upvotes · 0 comments ## Summary Azume One is a 2.8mm thick sensor module that attaches to the back of any wristwatch to add health tracking. It measures 30mm in diameter and weighs 5 grams, using an optical PPG sensor and motion sensor to track heart rate, HRV, blood oxygen, sleep stages, stress, and more than 28 workout types, according to the company. It attaches via a nano-suction surface without glue or magnets and connects to a phone over Bluetooth 5.4 with up to 48 hours of battery life. It's on Kickstarter for €109 (around $122), with a €179 Founders Edition, and deliveries are estimated for December 2026, though CE and FCC certification testing is still underway. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What is the Azume One and how does it turn a regular watch into a fitness tracker? It's a 2.8mm thick, 30mm diameter sensor module weighing 5 grams that attaches to the back of any wristwatch using a nano-suction pad. It contains an optical PPG sensor and motion sensor to measure heart rate, HRV, blood oxygen, skin temperature, sleep stages, stress, and over 28 workout types, syncing via Bluetooth 5.4 to a phone app with up to 48 hours of battery life. _Wearable tinkerers comparing sensor add-ons track new crowdfunded hardware launches like this on daily.dev._ ### How much does the Azume One cost and when does it ship? The base Kickstarter price is €109 (around $122), with a limited Founders Edition at €179 (around $199) that includes extra accessories and early feature access. Deliveries are estimated for December 2026, but CE and FCC certification testing is still underway, so hardware changes could delay production or shipping. _Backers weighing crowdfunding risk follow hardware launch updates like this via daily.dev._ ## Similar posts on daily.dev - [Hiyd is a health tracker that attaches to the watch you already wear](https://daily.dev/posts/hiyd-is-a-health-tracker-that-attaches-to-the-watch-you-already-wear-l4r5xn2bf) · TechCrunch · 0 upvotes · 0 comments - [Oura Ring 5 launches as world's smallest smart ring at $399](https://daily.dev/posts/oura-ring-5-launches-as-world-s-smallest-smart-ring-at-399-awtguory2) · The Next Web · 0 upvotes · 0 comments - [AI Wearable Devices Run Locally With New Chips](https://daily.dev/posts/ai-wearable-devices-run-locally-with-new-chips-bphcoznsk) · IEEE Spectrum · 0 upvotes · 0 comments - [Mikroe Launches Life Click Board for Vital Sign Monitoring](https://daily.dev/posts/mikroe-launches-life-click-board-for-vital-sign-monitoring-c9jspes7i) · Embedded.com · 0 upvotes · 0 comments --- Tags: [#bluetooth](https://daily.dev/tags/bluetooth) [View this post on daily.dev](https://daily.dev/posts/azume-one-a-2-8mm-sensor-that-turns-any-regular-wristwatch-into-a-health-tracker-crowdfunding--j3su6zqco) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Azume One – A 2.8mm sensor that turns any regular wristwatch into a health tracker (Crowdfunding)","url":"https://daily.dev/posts/azume-one-a-2-8mm-sensor-that-turns-any-regular-wristwatch-into-a-health-tracker-crowdfunding--j3su6zqco","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/azume-one-a-2-8mm-sensor-that-turns-any-regular-wristwatch-into-a-health-tracker-crowdfunding--j3su6zqco"},"datePublished":"2026-10-30T09:01:50.372Z","dateModified":"2026-10-30T09:02:22.565Z","description":"Azume One is a 2.8mm thick sensor module that attaches to the back of any wristwatch to add health tracking. 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