If I had to design it, I would not directly send the data to the central server. I would first store it for a period of time, then compress everything and then

If I had to design it, I would not directly send the data to the central server. I would first store it for a period of time, then compress everything and then send it while the phone is inactive and plugged to the sector. Or I would build a model with the data on the phone, then send that to the central server. Both ways would be asynchronous.