Healthy looks
good on you
Chargerless Ray smart bracelet — stay fit and look good. Super-light and charges with the sun.
Starting at $199
An ordinary bracelet for an extraordinary life
Exceedingly comfortable and capable of running on 1 minute of sun per day, Chargerless is the everyday health companion for the ones who refuse to compromise.
Whether you're sleeping easy or working hard, the Ray is scientifically-backed to help you hit your goals and get back to life.
Look good, feel good
Going Chargerless means you can keep an eye on your health without lifting a finger. Rest easy, no matter what happens, we've got the proof.
2-month battery
Our most powerful sensing in a tiny package
Never miss a step or a wink
Fully waterproof, shockproof, and lifeproof
Tech Specs
Sensors
- Heart rate & HRV
- Body temperature
- Sleep stages
- Steps
- Light exposure
Battery
- Eternal with 1 min sun/day
- 60-day cave mode
- 20+ year longevity
Size
- <4 g weight
- 33 × 11 × 6 mm
- 8 mm band width
Durability
- IP68 waterproof
- Polished steel casing
- No charging port
Connectivity
- Bluetooth Low Energy
- iOS & Android app
Sustainability
- <2 g non-recyclable
- No charging accessories
Built by engineers, for everyone
We're a team of engineers obsessed with making health products that don't get in the way of living. We believe wearables should be invisible, self-sustaining, and built to last decades — not planned to be replaced.
Chargerless Ray is our debut product, with more coming soon.
Andy Kong
Founder
Stay in touch
Sign up for our newsletter and we'll let you know when the first batch of Ray is ready.
Frequently Asked Questions
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.
Pretty much. The Ray charges itself with light, indoors and out — one minute of sunlight a day is enough to run forever. Even in total darkness, it lasts two months on a full charge.
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.