The Lumysi bracelet is a screen-free health tracker built into a titanium housing that measures 1.25 inches long and 0.35 inches wide, weighing just 25 grams. The company claims it tracks heart rate, heart rate variability, sleep, recovery, blood oxygen, and women’s health metrics continuously in the background, transmitting data via Bluetooth to a companion app on iOS and Android. There is no display, no notification stream, and no attempt to be a wrist-mounted smartphone.
Four titanium finishes are available at launch, spanning Gold, Space Silver, Rose, and Midnight Black, with interchangeable bands in stainless steel, leather (brown and black), and silicone (white). Lumysi says the bands use a standard connection that is compatible with third-party replacements, which is a welcome touch if the claim holds up in practice and demands enough interest from other manufacturers. The idea is that the same device moves from a gym session to a formal dinner by swapping a silicone strap for a steel one, rather than requiring the wearer to choose between tracking and appearance. Ironically it’s a similar approach to the very early Fitbit devices, before they outgrew their original goal.
Battery life is quoted at up to seven days between charges, which would place it broadly in line with the likes of the Oura Ring. Water resistance is rated at 5 ATM, covering handwashing, rain, workouts, and pool use according to the company, supporting its 24/7 wear proposition.
Where Lumysi leans hardest into its pitch, however, is the software layer. Rather than presenting raw numbers, the companion app claims to use AI to translate biometric signals into plain-language, actionable insights. A recovery score, for instance, is not simply displayed but accompanied by an explanation of what drove it and where the wearer might improve. Sleep quality is tied to next-day recovery predictions, and HRV shifts are framed in the context of stress and routine. The intent is to function as an interpretive layer rather than a data dashboard.
Lumysi is launching in a crowdfunding stage and is offering early backers a lifetime subscription to its full AI insights suite with no ongoing fees. That is a bold step and goes against the current smart fitness landscape, where brands like Oura charge $5.99 per month (or $69.99 annually) for full access to its feature set. Even the subscription-free Ultrahuman Ring Pro, which began shipping its latest model at $479 this month, bundles its core features without recurring costs but has yet to confirm pricing for its add-on PowerPlugs beyond the first year. Lumysi’s early-backer pricing sits at $169 following a $3 reservation via its Indiegogo campaign, with estimated delivery in October 2026.
