QSun is currently not available as a wristband for accuracy reasons. As a UV-measuring wearable, it needs to be worn where it can have the most contact with the sun. As a wristband, the wearable could face more obstructions, such as being covered by a sleeve. Thus, the results won’t be as accurate as being worn on your shirt. QSun also sends buzzer notifications so you don’t have to look at it to receive alerts.