Always avoid oppo and vivo it doesnt represent all android.

Oppo and vivo are for to cheat ppl that are easily fall for advertisment and marketing with social influencer and celebrity.

You deserve to get cheated by oppo.

Their low end are snapdragon 400+ and their highest end also snapdragon  600+ while real flagship from Samsung, HTC, one plus one, sony all uses snapdragon 800+ for their flagship.

iPhone 6. It was slow to the point that I would give up texting. Don't get me wrong, during the first year or two I loved it.

The thing I hate about my Oppo is that it's ALREADY slow after a month and I don't have that many apps installed. I have to clear memory every 5 minutes of use.

For me the most important is the performance, followed by the camera and then design.