This NIB Crane activity tracker watch is perfect for women who want to keep track of their fitness goals. With a yellow wristband, it's suitable for both indoor and outdoor activities such as gym training and running. This activity tracker has sensors that measure heart rate, time, distance, and calories. It uses batteries as a power source and has a wristband feature for convenience. The Fitbit model is manufactured in China and is perfect for those who speak English. It does not come with any manufacturer warranty.