http://pages.ebay.com/link/?nav=item.view&id=262228278204&alt=web

https://www.wish.com/geek/m/c/56434488dfb6b128b953fdde

Gday, I am looking into buying a device simply for flying and controlling the camera/DJI App from my Phantom 3 Advanced that i recently purchased... i wanted to make sure before i purchased this device listed above, the DJI app and camera... etc will be compatable and the device will fit in the Phantoms mobile device holder of the controller. 

Cheers.
Lachie

Which device from the two would be better???

Please take the compatible device list as a reference :
iOS Version v2.5.1. Requires iOS 8.0 or later. Compatible with iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, and iPad mini 3 Wi-Fi + Cellular. This app is optimized for iPhone 5s, iPhone 6, and iPhone 6 Plus.
Android Version v2.5.0. Requires Android 4.1.2 or later. Compatible with Samsung tabs 705c, Samsung S6, Samsung S5, Samsung NOTE4, Samsung NOTE3, Google Nexus 9, Google Nexus 7 II, Ascend Mate7, Huawei P8 Max, Nubia Z7 mini, Sony Xperia Z3, MI 3, MI PAD, Smartisan T1.
*Support for additional Android devices available as testing and development continues.