Joule helps you to achieve the best result for your workout, by providing you the heart rate information while you are working out. It also tracks the calories burned not only when you are exercising but also accounts for the missing 90% daily caloric expenditure. It is connected to your smartphone via Bluetooth, thus syncing your activity throughout the day. Joule is not only the world's smallest fitness tracker but also the lightest tracker in the world. It is made as a piece of jewelry and can be used as a true wearable that will matches with your lifestyle, and now finally you can say NO to all the plastic wrist bands, and have the style you deserve.
| Included: | Charger and USB Cable |
| Weight: | Approximately 1.5 grams |
| Diameter: | Less than dime ( < than 0.7 inches / 18 mm) |
| Battery last: | 24 hours |
| Portable charger/ jewelry case: | Up to 10 charges |
| Compatible with: | Android and iOS smartphones with Bluetooth 4.0. |
