Meet Core by Hyperice: an iPhone compatible meditation trainer that helps you relax your mind and manage your stress. The Core Trainer uses vibrations and lights to guide your breathing. It has ECG sensors to measure your heart and nervous system. The Core app helps you make sense of your data.
The Core meditation trainer comes with over 300 guided meditations and breathing sessions for you to try. It lasts up to 2 weeks on battery.[where to get it] [HT]