What is the best way to store metrics for a chart?

Question

Qt

I am writing a Qt client to collect biometrics from a fitness bracelet. Motion and pulse sensors. The movement is removed once a minute. The pulse can be taken once per second. Among other functions, you will need to draw graphs from old and new data and compare. The client is made for PC and Linux, if the result is satisfactory, then I will port it to Android.
So the question arose: in what and how is it better to store the archive of metrics locally? Maybe some simple database like SQLite, while I've seen some creepy web monsters like Graphite + StatsD.

Answer 1

Influxdb