i only used one android phone ever which is samseng note 3 becos that time i did not managed to get iphone 5. (dumbest mistake ever)

after that, i told myself i will only use iphones in future. 

It is not more durable. It is totally durable. I still have two units of 4s and 1 unit of iPhone 4. All are still working now.

And I am still using my iPhone 6 Plus now as secondary phone.

what is your charging pattern like? I usually charge from 30% to 80~90% but recently always charge around 60-90%.. maybe thats why my batt degraded

Anyone looking to buy the 12 series iPhone if primary requirement is battery life, don’t bother with what are out now. Just hold out for the 12 Pro Max. That is your best bet. It may or may not be better than the 11 Pro Max but that would be your only choice if battery life is your main criteria in picking a mobile home.

make an appointment from apple support, link as below
https://getsupport.apple.com/

hello all.
My 11pro battery health already at 88%.
been using it since day one launch at malaysia.
Warranty expired.

Any recommendations here where to change the battery?

the Battery Health screen includes information on maximum battery capacity and peak performance capability.
Maximum battery capacity measures the device battery capacity relative to when it was new. A battery will have lower capacity as the battery chemically ages which may result in fewer hours of usage between charges. Depending upon the length of time between when the iPhone was made and when it is activated, your battery capacity may show as slightly less than 100%.
A normal battery is designed to retain up to 80% of its original capacity at 500 complete charge cycles when operating under normal conditions.

but can you change the battery at any switch or machine apple shop now?
Bcs the last iphone i had which was the iphone 5, when after 1 year of use i had battery problem none of those apple retailer could fix it. I had to go to some back alley shop to change a battery.
Wondering is it still the same now??