Help in choosing my first smartphone EVER (Part 2)

Consumer Electronics Smartphones
1

If you’re wondering why the title has “Part 2” is because I created a topic before this comparing 7 phones which I have chosen. You can find it here:

So, my budget is 1700 MYR (~385 USD) and this time, I have just 3 phones to compare. Here they are:

  1. OnePlus 3 A3000 64GB (Graphite) [B][Brand New][/B] - 1685 MYR (380 USD)

  2. Samsung Galaxy A5 (2017) 32GB (Black) [B][Brand New][/B] - 1699 MYR (383 USD)

  3. Apple iPhone 6 128GB (Space Grey [B][Refurbished][/B] - 1470 MYR (330 USD)

I really love the specs of the OnePlus 3 but my mom is a bit unsure of the phone since she’s never heard of “OnePlus” before (she thinks Samsung and Apple are the only 2 brands that are reliable) so it is a little tough to convince her. So, based on these 3 options, which one should I get? OPINIONS AND SUGGESTIONS ARE HIGHLY WANTED! Thanks! https://linustechtips.com/main/uploads/emoticons/smile.png