Its not an easy answer. Both drones have electric and mechanical releases available.PhantomThe top of the line is the Gannet X electric, drop anything at any distance. But close behind it is the mechanical Gannet Sport limited to fishing only as you need the line to release it.Mavic, Electric original Gannet, releases from the C1/C2 buttons on your remote to drop anything at any distance, the Mavic also has a dual release available so you can drop 2 separate loads.And it also has a mechanical Gannet Sport for fishing only.The choice is so hard that many guys buy both electric and mechanical releases.For myself I currently use the Sport most of the time as I almost always just want to drop a bait.