Ember by Cercacor

I have owned my Ember device for a few years. Overall I am happy with the package but that’s not to say I have some major concerns: 1) price for the credits, especially after a costly device 2) technical support and app updates. The support team answers questions fast but the updates to the app when there’s an issue take very long to be updated and addressed, leaving one with a useless device for many days. 3) some people have noticed that the Ember device is not FDA approved, therefore the accuracy of it may not be what it claims. The company has yet to address this publicly. If you have the money to spend and what a unique device like this I may see a reason to buy. But this device is similar to many bicycle power meters where you may get an approximate number, not a definite one. And they are both expensive!!

I checked my hemoglobin using an blood machine in lab and it was 16.7 g/dl but at same time the ember showing my Hgb is 14.1 . Now I understand why FDA did not approved the device ? also each time I do a full test it costing me 3 dollars and I have to pay through buying new credit package which start at $25 which can be used for 8 full test

Your sensor comes with a number of "free measurements" but afterwards it costs up to 3 credits (1 credit is 1 dollar) to read all of the data. The device itself is already pricey. Charging an extra few dollars to be able to get all the data your sensor can read is a predatory price model that's really not customer friendly.