A:AnswerThe Spark shoots in a maximum of 1080p, along with a 2-axis gimbal. It has obstacle avoidance in the front, and the Mavic Mini is a replacement. The Mavic Mini has enhanced wifi, like the spark. However, it is better, and has evolved to fix problems that happened with the spark. The Mavic Mini has a 3-axis gimbal, can shoot videos in 2.7k, and shoot photos in 12MP. The only downside to the Mavic Mini is that it has no obstacle avoidance in the front. I recommend getting the fly more package, with a roll cage, if it is your first time with a drone, or if you want to protect/get maximum protection out of your investment.
A:AnswerIt is advertised for 3km but this will be possible only in a very open/perfect flying condition. I only got 200 meters (~200 yards) distance myself when flying behind my house, over trees.
It's using Wi-Fi to communicate between the Drone and the Controller, so anything between the drone and the controller will interfere with the transmission.
A:AnswerThe drone does not have active tracking and will not follow you if you are moving like running down a field. You will have to get the Mavic Air for that feature.
A:AnswerNo you don’t, as long as you connect your phone to the drone. Everything you take a picture of or record will go straight to the library either to your photos or the library in the app you use to control the drone. But you can use a memory card, and whatever you take a picture of or record will save to the memory card. But please note that the memory card you will need if you get one is the micro SD card.
A:AnswerThe legal height that this drone can fly is 400 feet which is done easily. Anything higher than that and you could start voiding warranties and breaking laws. In most distance tests I have seen around 8-9 miles.
A:AnswerYes, it should work. I just bought the drone and in the package it comes with 3 different plugs for different types of phones to plug in with the drone. I insert a picture of the plugs so you can see what they look like.