Looking for new long-term Android with ability to flash (good, working) ROM
I have been using xiaomi phones for a long time now, for most of them the (xda) community eventually had great ROMs that (eventually) worked without problems or with very little.
Though these days I need a working phone so I didn't bother with my (Mediatek) Note 8 Pro - last time I looked phones with these chips were a lot harder and more dangerous to flash then the Qualcomms I had before (loved my Xiaomi A1 for that tinkering with Ressurection Remix).
So I am looking for an investment - a device I won't have to replace for another ~6+ years but I really want my device to do mostly what I would expect, without any snooping or other privacy shenannigans - I know xiaomi is probably the worse choice for this but their hardware specs were always the best for the price and were generally easy to flash.
I don't like pixels - they are too expensive for the hardware it offers, at least in my country.
Thank you for any tips in advance.
Update: iPhone is a no go for me because of the walled garden - I am a software developer by trade and hobbyist, I like to have the possibility of cracking the device open, both HW and SW wise. I am willing to trade the longevity of the device for this.
I know you don't want to hear it, but if you want a phone that's (relatively) privacy respecting, reliable as hell, well constructed so it won't break after just a couple of years, and supported for a long time... you just described an iPhone. You could be the 2022 SE today for $400ish and use it for 3+ years before you have to do anything to it, and even then you'd just have to pay $69 or so for a battery swap. You could also buy a 13 Mini or a 12 Pro for close to the same price and get an OLED screen and a better camera.
The Pixel series is probably your best bet in terms of specs and theoretical support. But I would be very surprised if you were able to use a Pixel for 3+ years without developing a hardware issue. Maybe you'll be lucky, but I wouldn't bet on it, personally. My partner's 4a isn't even 3 years old yet and it's clear that Google does not backtest any of their software updates on older hardware either. Hopefully that changes going forward, but Google has a pretty shit record with long-term support. They've promised to make replacement parts available for the 8 year lifespace of the 8 series phones, but the phones are glued together and hard to repair, so unless you're hardcore about DIY, it's unlikely that you'll bother with it. Instead you'll likely end up going to a repair shop, which you could also do with older Pixels today. And both Pixels and their replacement parts are iPhone-level expensive unless you're playing the carrier incentive game.
I'm not sure why others are shitting on the Fairphone's hardware. I think it's incredibly dumb that they killed the aux jack, and the phone is way too big for my liking... but it's literally built to be easy to repair. And Fairphone has a proven track record of support for their phones. It isn't perfect, but I'm much more likely to believe that you'd use a Fairphone for 5+ years than a Pixel. If you're concerned about part availability down the road, just buy a couple of spare batteries, a spare screen, a spare camera module, and a spare USB-C port today.
Thank you for the long answer.
I am somewhat torn between Fairphone and Pixel.
I don't think I will ever own iPhone - in short I do not like Apple and the whole walled garden thing, though I do agree these are best devices for long-term use especially when it comes to security updates.
I am also aware Google is not much better and if I get a Pixel I am definitely flashing it with Lineage.
I'd go with the Fairphone if I were you, as long as you actually care about having the phone long term. I know the Pixel is very shiny and very nice, but Google really does have an awful history of QA. Fairphone isn't perfect either, but being able to repair things yourself is a huge benefit. Sure the CPU and camera and screen aren't as nice, but they're probably nicer than what you've currently got, and definitely nice enough unless you're a tech reviewer who's constantly looking at the new shinies.
Plus, y'know, it is kind of cool that Fairphone tries to produce their phones without any slavery or labor abuses, and at least makes real attempts at sustainability. When you get burned by Google, you just feel shame because you knew they were going to screw you one way or another. If you get burned by Fairphone, at least you tried to do something better in the world.