To OP, I have an iPhone 13 Mini and I like it not love it. I wish I could have stuck with OGSE but it was becoming about as practical as a steam locomotive. As such when my OGSE threw itself on the sidewalk as I was getting out of a cab, I made the switch to the iPhone 13 Mini as the best practical option. No regrets and would buy again.
I purchased on Amazon as a renewed and found one with 128GB that was Premium condition for ~ $250 + tax, etc. Exterior was mint condition until I dropped it the day it arrived...battery was 90% and has been working well enough for me for now. I did a DFU reinstall after I first got it.
Battery life: I optimized my settings and in theory could get 3-4 days 100%->0% if I wanted to despite 90% battery health. I mainly use my phone as a communicator and otherwise I'm a light user. Phone calls actually seem to use most battery for reasons I don't understand -- like it somehow uses more energy than the OGSE to make a phone call. Settings I use:
- Screen (typically single biggest energy draw): brightness @ 25-30% works well for me indoors and whitepoint reduced to 30% (which I also prefer at night); mostly black background on home page (it's OLED so more white pixels means more energy usage)
- Background apps: all off (originally for privacy as I can't imagine any apps that need this are up to anything good)
- Cellular data: almost all off (also for privacy as most apps don't need this -- exceptions for Messages, Mail, Calendar, Safari, Maps, etc)
- Bluetooth off (obviously doesn't work if have a bluetooth headset, etc) and AirDrop off
- Search, Siri, etc off for most apps as I don't need any of that...
Obviously not all those settings work for everyone but I do suggest everyone make a conscience decision about all their apps and all those settings for each app, etc. I generally go with Off unless known reason to be On.
On the positive side, the finish feels wonderful in the hand. Like a fine lacquered box or something. Obviously it's faster especially browsing modern websites. Camera of course is much better and TrueDepth allows Portrait mode and memojis or whatever.
Why don't I love it: carry and size. I think if the bezels were like 1.5mm narrower it would fit my hands just a little better. Also, it feels top heavy such that if I hold it resting on top of my pinky finger, it feels like it will flip over out of my hand. Which with its beautiful smooth glass finish feels like it would shatter like fine stemware (yes I carry without a case...if encased of course the finish doesn't matter and it's almost the same size as the 13).
I also wish it was about ~ 1" maybe 2cmm shorter. Putting it closer to the OGSE of course but specifically I find it harder to reach the top of the screen one-handed. Which isn't ideal as the upper right hand corner is where you access functions that were previously an upswipe on Home-button iPhones (as now the upswipe is how you get functions that the Home button does). Which when I reach for it one-handed, makes it feel like it will flip over due to the top heaviness as above. I don't even put Apps in the top two rows of the home screen so really unneeded bulk for me.
I dislike that Apple got rid of the 3.5mm headphone jack after OGSE especially when they hadn't yet moved to USB-C. But that's life in the Apple ecosystem. I bought a JSAUX Headphone Adapter for iPhone Lightning to 3.5mm Adapter for $15 and moved on. Similarly dislike the camera bumps but moved on.
Yes all those are first-world problems but size and one-handed operation are practical problems. I notice them on a daily basis. The OGSE was just so perfect for me I didn't notice the design details until I lost them. I suspect anyone who held on his or her OGSE until this year will notice the same issues. However, the iPhone 13 Mini should be a solid phone until 2030 and I believe the best compromise among available options for such people in the meantime.