An iPhone is 3x thinner than a Nokia 3310, but has a battery with 3x the capacity of the 3310.

My Samsung Galaxy S3 had a thickness of of 8.6mm and a 2100mAh battery that was removable via the back cover [0].

My Samsung Galaxy S6 has a thickness of 6.8mm and a 2550mAh battery that requires unglueing to replace [1].

I'd much rather carry around the extra 1.8mm for the extra repairability.

[0] https://www.gsmarena.com/samsung_i9300_galaxy_s_iii-4238.php

[1] https://www.gsmarena.com/samsung_galaxy_s6-6849.php

True. I was unaware of this.

And some variants of the 3310 claim a month of battery life. It isn’t an particularly fair comparison as they are very different devices that both get called ‘phones’, but that is a great battery life. https://thinkmarketingmagazine.com/new-nokia-3310-battery-li...