CORE Thermal Sensor

This is an update (and upgrade) of an earlier review. I’ve had this device for 2+ years. It works okay for getting core body temp read in to Garmin Connect, albeit with relatively little guidance on how to really use the data. Routinely, I experience difficulty getting the app to read history data from the sensor. It connects, claims to be getting current data—occasionally toggling to the ‘getting historical data’ message—but won’t show the data. Garmin Connect sees the data immediately after completion of the run or ride, but the CORE app doesn’t. Then usually the data will show up in the app a few days later. It feels like the connection should be faster and more robust; also there should be better diagnostic message of what’s going on. I appreciate that the device needs to be parsimonious with battery life, but the Android/iOS apps don’t need to be.

The app could use some work for ease of use. The data is a little difficult for the non sports pro to understand. Despite not being for medical use, I am using the device to monitor body temperature to see how well my body is regulating temperature since some illnesses cause difficulty with body temp regulation. For that reason, many of the biometrics are of little to no use since I’m not training, but monitoring. My biggest issue is that I cannot sync data with Apple Health—only with my Apple Watch. Additionally, my iWatch has a heart monitor, and I keep it set to continuously monitor, the Core device does not recognize that device data. I am, however, really, really pleased with the temperature monitoring and the device—but would love to see some other functions and compatibility introduced in the app.

The device itself works well and certainly gives a pretty good/accurate idea of body core body temperature. I bike in western Colorado - hot and dry in summer and great climbs. I can see where my body temperature is climbing - hot - and what it settles down to when not climbing. Useful i am better at hydrating using this device. I can see my body temperature on my Wahoo unit (the Wahoo unit automatically converts to degrees Fahrenheit) while biking (along with speed, heart rate, watts power, cadence, and when I am using a Supersapiens patch, blood glucose). The app is ok. It has a section to customize whether you want to see temperature readings in degrees centigrade or fahrenheit but I have never been able to make it change. That the Wahoo unit does that makes it nice for when I am actually raising body temperature. The device is good the app adequate - if you like to keep track of your numbers this is another somewhat magical device to give you body temperature reading.