Once you end your video, you can review the recording and decide whether your want to Retake or Use Video
The data upload will start as soon as you tap Use Video. Multiple videos can be recorded while data is uploading to the tablet - the videos will be queued until the transfer is completed.
Data upload will usually have a 1:2 ratio of video to upload time (i.e. a 10 second video takes about 20 seconds to upload). This will be faster if the athlete isn’t moving and closer to the hub.