Abstract: Systems and techniques for a wearable health monitor device and a wearable health monitoring data service are disclosed here. Sensor data may be periodically collected from a sensor array. The sensor data may be stored in a local database of the wearable health monitor device. The sensor data may be transmitted to a cloud-based platform upon detection of a strong network connection. An evaluation of the sensor data may be received for display on a display device of the wearable health monitor device.