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. Everything Ray tracks →
Yes, the Ray is fully waterproof and can be worn while swimming, showering, spelunking, running, water poloing, or in any weather conditions. Water and band care →
Ray charges using outdoor sunlight only. About one minute of direct sunlight outdoors per day can sustain operation. A full charge provides about 60 days in total darkness, depending on settings and use. How solar charging works →
Indoor lighting barely charges Ray unless you’re right next to a window. It does charge outdoors in shade or cloud, and through the window on a car commute. A full charge lasts about 60 days in total darkness, so a little time outside every so often keeps it topped up. Best light for charging →
Yes. Ray is one of the lowest-EMF trackers you can wear. It charges from light as direct current, so there’s no wireless charging coil and no battery pack charging on your wrist. It uses very little power, its Bluetooth isn’t on all the time, and you can set it to stay off most of the day and sync only when you want your data. Ray does use Bluetooth Low Energy when it syncs, so it isn’t EMF-free. Our low-EMF guide →
Yes. Cancel any direct Ray preorder at any time before shipment for a full refund. After delivery, try Ray and return it within 60 calendar days for a full refund of the product price. Ordinary trial use is allowed and there is no restocking fee. Email team@getchargerless.com to start a cancellation or return. Customers normally pay return shipping; see our return terms for instructions and conditions. Return and refund details →
Batch 2 sold out. Batch 3 preorders are open, with shipping expected in December 2026–January 2027. We'll send updates as we get closer to the ship date. Shipping and delivery →
It’s Chargerless—with an “r.” The name reflects that Ray works without a charger. People sometimes hear or spell it as Chargeless, but Chargerless is the company and product brand. About Chargerless →