From iPhone 13 to iPhone 15 battery capacity has increased 120+ mah or more with same technology due to smaller 3nm A-chip size in iPhone 15 over 5nm in iPhone 13. This makes Apple to redesign motherboard & shrink as much as possible to make room for more battery.
Apple has been incrementing battery capacity since 1st iPhone due to its poor battery life compared to android.
Future mini :
Upgraded 3nm (efficiency cores to extent battery life) or smaller future A-chip
Stacked battery tech. (13 mini 2406 + 200mah or more)
Redesigned motherboard (Apple keeps shrinking motherboard size removing some of old components which might not be necessary to make more room for battery capacity).
Maybe Taptic Engine will be replaced by more smaller component or new technology.
Future iOS extending 2hrs extra battery life.
Apple’s own Micro-LED technology with decreased power consumption.
Apple will mass produce its own microLED displays in order to lessen its reliance on Samsung and increase its own control over supply, laying the...
www.macrumors.com
Apple can do but they don’t I guess. We have to see after 2yrs after if mini has a comeback or alternatively flip/something smaller in size, if ppl become uncomfortable using 6.3” & 6.9” iPhone 16, 17 screen sizes.