That said, The iPhone 6s has excellent performance, a stellar camera, and a great screen. But some features on the iPhone 8 and iPhone X simply don't exist on the iPhone 6s, like water resistance and most augmented-reality apps. For those things that are missing entirely from the iPhone 6s, you'll have to decide for yourself whether it's worth the extra $250 to $550.
Here's what you're getting if you want to spend more for a newer iPhone than an iPhone 6s:
- Faster performance
- Better cameras
- Slightly better screen on the iPhone 8 and a drastically better screen on the iPhone X
- Extra features that are nice, but not essential, like Portrait mode, wireless charging and fast charging, the latter two features requiring extra purchases
- Augmented reality
- A fresh design with the iPhone X
- Water resistance
These are all improvements to be sure, but you have to ask yourself whether paying the extra $250 to $550 is worth it when the iPhone 6s is still such a good phone.
It's true that the iPhone 6s will show its age a lot quicker than the iPhone 8 or iPhone X. But look at it this way – when the iPhone 6s becomes too slow for your day-to-day use in, say, two years time, you could upgrade to the iPhone 8 model that'll cost less than the brand new 2019 model.
The iPhone 6s is an example of how recent iPhones have longer lifespans when it comes to performance, and we don't need to spend top dollar for the new models.