Difference of iPhone 6 and 6s?

I know that they have difference hardware wise. Ex. 2 GB RAM, 3D Touch, ect. But what I was wondering is if you can even tell the difference, like when you are loading games, loading apps and sites, starting times? Is the 6s really that much faster that you can tell the difference.

Added (1). Start up times*

How to watch Blu-ray movies on my iPhone 6S Plus?

Do you guys here have a solution to make it possible to watch Blu-ray movies on iPhone 6S Plus? I also know that watching Blu-ray movies on iPhone 6S Plus, I need to convert Blu-ray to iPhone 6S Plus supported video formats like MP4 first.However, I can't thknk of any ways to do that. Do you have any ideas for me?

Added (1). @DCM5150 Ok, I got it from http://www.dvdfab.cn/blu-ray-ripper.htm

Tethering iPhone to computer on Wi-Fi - does this use data?

So the internet in my room is terrible, but for some reason my iPhone connects just fine.

When I tether my iPhone (connected to Wi-Fi) to my macbook, the internet works.

Because I'm using Wi-Fi on my iPhone while tethering, is this using data?

Laid down and can't get up due to severe back pain?

Let's get straight to the point, here's what happened…

My father who is obese laid down on the sofa to rest his back after a long day of working physically. The problem is, he can't get up anymore; he is claiming that his spine is in extreme pain whenever he puts one effort to thrust himself upwards or put his legs off the sofa.

I'm thinking because he is overweight, his excess weight was compressing his heavy body weight onto his spine for hours while he was resting on the sofa. Could this potentially limit blood flow to the spine and cause pain, or muscle weakness? If not, what else other reasons would there be for him to be unable to move due to severe back pain?

Thank you.

Added (1). Sorry for typos, I was on my iPhone… "… He puts on(not one) effort…"

My iphone 6 is doing 2 weird things. What happened to it?

First the screen would not recognize when I would touch it. It turned white on me.

I looked up the issue and ordered the tools online. It takes a few weeks to get here.
Meanwhile,

I keep it on the charged and a day later I need to make a call so I decided to just use Siri voice command.

It kept saying "Put in password when iphone turns on."

The screen is white but glowing. I assumed it was on the whole time.

What is happening?

The tools and suction cup thing are on the way to my home.

How much water will it take to damage an IPhone 5s?

I accidentally got a tiny bit of water on my phone. It was on the bottom right corner and it was in the water for no more than 5 seconds. I think only about a teaspoon of water got in the phone and I dried if off right away. I managed to get most of it out. There still might be a drop or two. I turned it on and its working fine, as if nothing happened. Should I keep using it or put it in rice? Is it possible for it to damage my phone or if its working fine now will that mean that it is fine?

IPhone 6 zooms in on Google Books previews?

Does anyone else's webpage zoom all the way in when trying to view pages from book previews in Google Books in their iPhone 6s or is it just me? I haven't had this issue with any other site yet, but when I click on a book snippet or preview in Google books this happens. I've checked to make sure the zoom is off in the settings, tried the three finger tapping and everything. If anyone could even let me know if this is a website interface problem that'd help.