A:AnswerCell phone service is not required the drone can fly with out wi-fi/service I recommend getting a sd card for your controller and offline download the map of where you are going to have more information.
A:AnswerFor the mini 3 there is no obstacle avoidance but the pro does and max wind speed is 24 mph for mini 3 and for the pro it is the same but if you use the intelligence battery you have take bigger winds because it makes the drone heavier
A:AnswerBatteries and charger is included the amount of batteries you get does depend on what version you get like if you get a fly more version you get 2 extra batteries unlike the regular where you just get 1