The Phantom 2 battery was an 11.1V 5200MaH while the Phantom 2 had a 15.2V 4480MaH battery. These batteries are not interchangeable either so you canā€™t use the Phantom 2 batteries in the Phantom 3 and vice versa. DJI changed the battery sizes and voltage with almost every single model upgrade so just like the Phantom 3 and Phantom 4 batteries The DJI Phantom 4 Pro V2.0 is the first Phantom drone from DJI that can connect to the DJI Goggles RE wirelessly. The OcuSync HD transmission system supports automatic dual-frequency switching (between 2.4 and 5.8 GHz bands) and lower latency than LightBridge. The droneā€™s total weight is 2 pounds 11 ounces, and its dimensions are 19x19x8 inches. In short, The design of the Mavic Air is much sleeker and more compact than the DJI Phantom 3 Standard. The Mavic Air also has foldable arms, making it even more portable. In terms of camera, the Mavic Air has a 12MP camera with 4K video capabilities, while XFXLpOn.