I did some testing this morning to compare the Spark's max speed while flying with and without the remote controller. Here's what I found:
Flying with remote controller:
Flying with mobile device (w/o remote controller):
Flying with remote controller:
- With obstacle avoidance enabled: 9 MPH
- With obstacle avoidance disabled: 14 MPH
- With sport mode enabled: 31 MPH
Flying with mobile device (w/o remote controller):
- With obstacle avoidance enabled: 7 MPH
- With obstacle avoidance disabled: 14 MPH