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I would disagree with the obsolescence part.

I can't find an example (not even 3D games) in which the 6S Plus would feel sluggish compared to an iPhone 8 or 11. Running the latest OS. I actually prefer to use it these days, primarily because of the headphone jack.

Maybe a different chip? I've heard of some controversy about 2 different chips being put in the 6S Plus.
 
As a side note, user standards for OS upgrades have changed considerably. While the original iPhone received updated for only 2.5 years, the 6S is still being updated six years later. Without hampering the performance (with a working battery).
 
6S Plus has the A9 chip which is also in my iPhone SE 2016. I don't play games with my iPhone, but I do use 3D apps like Essential Anatomy 5 and I noticed a slowdown when I upgraded my SE 2016 from iOS 13 to 14. Also Facebook and Messenger seemed sluggish after updating to iOS 14 from iOS 13 and not to mention the OS becoming even more bloated. I wish I didn't update it to 14, but I had to keep my phone up-to-date for security purposes. Now being on the SE 2020 for a week running the same apps, I didn't realize how sluggish my SE 2016 was and how long I was able to tolerate it.

I suppose that if you don't need to run the latest apps and use the phone for as a phone with email, lite facebook and social media stuff plus some decent gaming, then the A9 is more than capable. My parents are happy as a clam with my old SE 2016 and they thought it was a huge upgrade from the 4S. Well it was.

I think speed is a relative thing. I'm typing now on my Macbook 2014 and I find it more than fast enough for what I need to do with it. But some people won't agree with me on that and need the M1 version of the MB Air and find the 2014 slow and unusable. So I think when we are talking about speed, we are sharing our insights in relative to what we are planning to use it for and there's no right or wrong answer.
 
You can't really protect your iPhone from Apple's intentional obsolescence and continual upgrade path where the combination of software upgrades and higher hardware needs from games to take advantage of the newer processor and the newer graphics core processor in the new iPhone will make older iPhones obsolete, which then forces you to upgrade your phone on a bi-annually basis! That doesn't take account of the battery age which also can slow it down from peak performance.

The iPhone is like a normal computer. Once you buy it, it is obsolete because next year, Apple will have a new A series chip or the M series chip for Macs that are faster than the older chips.

There's nothing to protect your investments other than being aware that your iPhone 12 will be superceded by 13, then 14, then 15 with better, faster and more capable chips and graphics. Then new games will take advantage of the newer chips and more available RAM. Which is why PC gaming can get very expensive. You have to also keep up with newer graphics and newer CPUs just to play those newer games smoothly.

The person who doesn't game, doesn't do a lot of CPU and graphics intensive apps can still use the iPhone 6s Plus today as if it's just as fast as in the past. However, once you start pushing it, then the A9 chip in the 6s Plus, which is also in my iPhone SE 2016 is sluggish even with a somewhat new battery from Apple with 94% life left. Which is why I got a new SE 2020 to replace it. Now running the same intensive apps that made my SE 2016 sluggish is smooth on the SE 2020. There's no comparison between an A13 chip vs an A9 chip and there's no comparison between your iPhone 12, which is an A14 chip versus the A9 in your iPhone 6s Plus.

My parents who bought my old iPhone SE 2016 is delighted to have a super fast phone, especially coming off an aging iPhone 4S which died recently.
Yes, changes in electronic equipment are always fast. There is no one-size-fits-all solution to completely protect my phone. After seeing everyone’s replies, I think it’s better to be relaxed, and use the phone without worrying too much about whether it will slow down or something. Thank you very much for your reply, which gave me a lot of reference opinions.😊
 
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I would disagree with the obsolescence part.

I can't find an example (not even 3D games) in which the 6S Plus would feel sluggish compared to an iPhone 8 or 11. Running the latest OS. I actually prefer to use it these days, primarily because of the headphone jack.

Maybe a different chip? I've heard of some controversy about 2 different chips being put in the 6S Plus.
Maybe. Everyone encounters various situations when using a mobile phone. It is difficult for us to say which situation is correct. But no matter what, iPhone6s plus is still my favorite iPhone series. 😆
 
I'm not understanding the connection between playing games and a phone's longevity. If you mean that it runs through more battery cycles and thus performance takes a hit as the battery health weakens, okay, but that's not the phone, it's the battery, which can be replaced.

In any case, I used an iPhone 6 for over 3 years. It was fine. I used an 8 Plus for over 3 years. It was fine. I don't see any reason why a 12 shouldn't run well for over 3 years.
He means you have add more wear and tear. So you’ll end up changing the oil and coolant on your phone. As well as changing the engine and transmission at time point. So don’t play games on your phone.
 
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I say alot of things about iPhones, but being useless in two years is not one of them. My iPhone 6s is still being used to this day by my son. It's still has 87% battery life left and it's the original battery. it's running 14 and its fast and snappy just like it was when I bought it. Now, I am getting bored with iOS and my iPhone 11 is have connectivity issues glaore, as well as messaging notification issues. But slowing down, or what not is not one of them. You will be fine for many years with the 12.
Yes, I don’t worry about its lifespan anymore.
As time goes by, maybe I will be bored with iPhone12 one day. 🤣
 
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From my personal experience, I think the system will have an impact on mobile phones. Maybe our phone is in a different state. After I updated the system, my iPhone6s plus did become slow. It may be that my phone model is old and cannot keep up with the system. And there are friends around me who keep the system on iOS12, and their phones are fast. I don't plan to update the system at the moment, unless I have to. Maybe a year later I can give you feedback, lol.?

[I've deleted this comment after foolishly realizing that I've commented on the thread already, and a long time ago at that.]
 
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