The health tracker
you can forget
to charge
The Ray is an advanced, sun-powered smart bracelet that helps hit your sleep and fitness goals.
From $129 — Learn more →
Fits right in
Sleek, lightweight, and minimal don't usually describe health wearables, but Chargerless is anything but average. And it's fully waterproof, with swappable bands to match any occasion.
Healthier together
Ray's advanced sensor suite nails the metrics that matter. Mind your sleep, heart health, and sunlight levels to keep insomnia and seasonal affective disorder at bay.
Infinite battery life
Powered by light, indoors and out. The Chargerless Ray needs only a minute of sunlight per day to run forever, quietly keeping you on track with your health and fitness goals.
Is that so much to ask?
Frequently Asked Questions
Unlike other wearables, the Ray can charge itself with light, indoors and out. One minute of sunlight a day is all the Ray needs to run forever, and for the cave-dwellers we have a two-month battery life in total darkness.
Ray tracks heart rate, heart rate variability (HRV), sleep stages, body temperature, steps, and light exposure. All data syncs to our companion app where you can view trends and insights.
Yes, the Ray is fully waterproof and can be worn while swimming, showering, spelunking, running, water poloing, or in any weather conditions.
Absolutely, preorders are fully refundable at any time before shipping, no questions asked. Just email us at hello@chargerless.xyz.
Our first batch is expected to ship in Fall 2026, and we'll send updates as we get closer to the ship date.
Chargerless preorders are now open on our website, DM me if you'd like to join the beta (ships first!) pic.twitter.com/SfgZ7BGlE5
— Andy Kong (@oldestasian) October 6, 2025
Stay in touch
Sign up for our newsletter and we'll let you know when the first batch of Ray is ready.
And a few more things...
Health tech shouldn't get in the way of living. Chargerless is designed to be small, minimal, and needs no user input to function
Environmentally friendly — no charging block, no cable to wear out, and a longer battery life (5 years) than other wearables
Data privacy and openness — your data is for your eyes only, forever. Leave it, export it, delete it; we won't snoop
Buy once, own forever — no recurring fees, no planned obsolescence