Why is the iPhone 7 Plus light years ahead of the previous iPhone?

People are still buying the iPhone 6s and iPhone 6s Plus. The iPhone 7 Plus is at least 10 years ahead of the iPhone 6s and iPhone 6s Plus. I can do so much more on my iPhone 7 Plus then I could ever do on an iPhone 7 iPhone 6s or iPhone 6s Plus. For example: Dual cameras portrait mode better low light camera and the camera on the iPhone 7 Plus is a MILLION times better than the iPhone 6s and iPhone 6s Plus camera. I can take MUCH better video on my iPhone 7 Plus then I could ever take on an iPhone 6s or iPhone 6s Plus. I also have a better screen resolution too and oh did I also mention that I have a touch sensitive keyboard 3D Touch and Live Photos. People don't buy the iPhone 6s or iPhone 6s Plus anymore. Just tell me the cold hearted truth: Why is he iPhone 7 Plus light years ahead of the previous iPhones?

How to set a YouTube video as ringtone?

I have an iPhone and I want to put audio from my favorite YouTuber as my alarm. Is there a way to save a video into my music so I can put it as my alarm?

IPhone 6: Audio and video stopped working?

IPhone 6: Audio and video stopped working?

Added (1). Last night, my phone's audio and video capabilities randomly stopped working and I have not idea how to fix it.
Snapchat videos do not play, it instead just shows the first frame for the duration of the would-be video. Twitter videos do not load. YouTube videos do not load and show me and show me this error: R7hadB7psRTZ7B4A. The podcasts app tells me every episode is "temporarily unavailable." Spotify songs will not play and have no audio.
I have no idea how to fix this.

Added (2). Last night, my phone's audio and video capabilities randomly stopped working and I have not idea how to fix it.
Snapchat videos do not play, it instead just shows the first frame for the duration of the would-be video. Twitter videos do not load. YouTube videos do not load and show me and show me this error: R7hadB7psRTZ7B4A. The podcasts app tells me every episode is "temporarily unavailable." Spotify songs will not play and have no audio.

Bluetooth Light switch? (dimmable)?

I would like to have bluetooth switches throughout my home.
I would like the switch to be capable of dimming the lights through bluetooth with my iPhone, can control multiple lights at once, can be controlled from the switch as well, and has a considerably good battery life.

All the lightbulb throughout my house are dimmable. I would not like to buy different light bulbs for $30-50 each such as from "Philips Hue." Would not want to get stuck using those specific light bulbs.

An easy-installation is preferred such as https://www.amazon.com/...01EV7FXOA/

However this switch couldn't dim lights. Any suggestions?

How do I check for viruses from Tongbu on my mac and iphone?

I used tongbu and tutu to download apps, not knowing they were dangerous, and now I'm scared I'll get viruses. I deleted the profiles and the apps from my computer and my iPhone but I'm not sure if they left some sort of virus on them. How can I check if they did?

My iPhone 6 camera's quality isn't the same?

Recently the quality on my phone's camera looks bad. This only happens when it's a little dark and I take pictures with the flash on. It makes the picture look kind of blurry or fuzzy. Do I have to replace my camera or what can I do? I've tried cleaning the lens but that's not the problem.