Why iPhone 8 is not supporting iOS 17/18?

William_thePRO wrote:

The iPhone 8 has the same chip as the iPhone 10 but the iPhone 10 supports iOS 17/18 but iPhone 8 doesn’t. Why?

You are operating on an bad assumption ("the iPhone 10 supports iOS 17/18"). It does not.

According to MacTracker,

• iPhone 8, 8 Plus, and X came out in 2017, have the Apple A11 Bionic chip, and cannot run iOS 17 or 18.
• iPhone XS, XS Max, and XR came out in 2018, have the Apple A12 Bionic chip, and can run iOS 17 and 18.

An iPhone 8, iPhone 8 Plus, or iPhone X isn't capable of 17 or above; they require an A12 or better CPU. The iPhone XR, XS, and newer have a better one.

(257658)

Maybe look into a verified older iPhone that has some forward

update path remaining; from a certified Apple repair store(?)

Resellers such as bestbuy might be OK; an independent

Apple Authorized service business, may be better source.

I've had several older models. Going forward at some point,

their path is pre-ordained by high priest of Apple. A newer

source of 'guaranteed workable iphone' should be sought.

My first edition SE1 still sees iOS 15.8.3, a backup iPhone 8

sits; needs replacement battery; still cost less than New one.

While I haven't bought into any all new tech, I can see how

the self-obsolete trail has no guard-rails; you can stay safe.