iOS Wearable Device Data Capture

An iOS application to capture data from a wearable device and send it online to a Node.js back end. The data read are human body vital signs. Some of this data is read several times a second and produces around 3M byte per hour. The data transfer rate is large and the system has to keep running in real-time. A real-time app on iOS is never easy as iOS usually kills any process that consumes the CPU more than a couple of seconds. 

Technologies Used
- Swift
- Realm DB
- Node.js for the back end
- My SQL DB
- Empatica SDK