Hartline is a fitness platform based on wearable devices and internet. The system uses the wearable devices to monitor the exercises, and transfer the fitness data to the cloud through internet. The cloud will analysis the data and show to the user through the Apps in the smart phone, the Pad, or the TV box. It can help the user to learn the exercise status. This App can be fully used in the Gyms, yoga rooms, schools and other scenes of group training. It can support Chinese and English. For more information please enter the website: hartline.cn