Chronos fits on most watches, especially those with a diameter of 31mm or larger.
Click here to use our measuring tool to see if Chronos fits on your watch.
Chronos works with all Apple devices running iOS 8.0+ (with Android coming soon!) You can download the app for free in the Apple App Store and the Google Play Store.
No. We have carefully avoided the use of magnets that could interfere and damage the movement inside the watches we love. Instead, we use harmless microsuction to attach to the back of your timepiece.
3 days on a full charge. We recommend charging it when you sleep at night, but don't worry if you forget, it only takes about 30 minutes to fully charge it back up.
Simply place your Chronos (you can keep it attached to your watch) on the included wireless charger.
The app and Chronos disc will notify you when your battery is low.
After pairing your device with the Chronos app, you'll easily be able to customize your specific vibration and light notification patterns.
The Chronos uses a rechargeable lithium ion battery, which means you never need to change it.
With an IP67 rating, the Chronos is water-resistant, but we don't recommend prolonged time underwater, as the moisture could affect the microsuction and lead to the disc detaching from your watch.
No, microsuction is designed for repeated use without replacement. If you feel that it's not as strong as it used to be, simply run the Chronos under water for about a minute to clean off any residue and the microsuction will be good as new.
Easy! If you leave the Chronos on a watch for prolonged periods of time, the microsuction may become a bit stronger and it'll take a little more strength to pull it off your watch. Rest assured, it won't leave any residue behind nor will it damage your watch.
Currently, only English.
With 8 different vibration patterns and 7 different LED colors, you can create up to 56 combinations. (Plus, we're adding more vibration patterns and colors all the time.) Get creative and customize your favorite contacts and apps with your unique combinations or use our suggested notifications.
Designed to match the back of your watch, the Chronos casing is made out of 316L grade stainless steel, with a polycarbonate window for light notifications.