( The iPhone6 Plus was better than the Samsung S6 Edge too so there appears to be a pattern here :-) ! )
The iPhone6S plus pairs very quickly with Fuji's Cam Remote. The Huawei Nexus 6P didn't; it was noticeably slower and more awkward. Huawei's fault? Android's fault? Google's fault? Who knows but it just goes to show you that theory is different from practice! How do I know this? I know this because I use the 6S plus for GPS with the Fuji X100T and once a day use the 6P with the FujiX100T to transfer photos and the difference is like night and day!
21st century cameras are social and on the internet and awesome-ized by software and sensors