We've heard a question like this several times:

How much data usage will this consume per 10 minutes of video (roughly)?

Our answer is usually something in that direction:

This depends a lot on both the signal/bandwidth available, as well as the video quality you want to achieve.

For best quality FullHD video, Sky Drone FPV 2 can use up to 450MB for 10 minutes at a data rate of 6mbit/s. You can still get ok HD quality at 2mbit/s though. Internally, we usually operate with Sky Drone FPV 2 at a max. data rate of 2mbit/s, but it is definitely possible to run it at a higher rate to ensure high-res quality.

At 2mbit/s,10 minutes of streaming will consume 150MB.

The system can adapt to very low available bandwidth as well: 50kbit/s are possible but only suited for emergency use (i.e. signal is very bad or your data volume is used up).