If privacy and security are your top priorities, which it sounds like they are, and you want a performance similar to OnePlus 8, go with the Google Pixel 8 with GrapheneOS. It's more aligned with your need for strong app sandboxing and convenient Google services integration, etc.

Fairphone only partners with organizations who pay living wages. I.e. their phones aren't made in a sweatshop

I'd get the Pixel because of the long, not to mention timely software updates and security patches, better hardware and GrapheneOS. If you do get the Fairphone, use DivestOS. See this comparison

I actually bought the Pixel 7A just a couple of weeks before the FP5 was announced. This was dumb but my old FP3+ was simply unusable so I really needed a replacement and I felt certain that the FP5 wouldn't have OLED. I ended up selling the Pixel to my sister who also needed a new phone and I got myself the FP5. We are both very happy.

I think it's pretty obvious that the Pixel is a "better" phone when it comes to the general experience from using it. However, I really do feel that this phone is "mine" in a way that I've never had with anything other than Fairphone. "If you can't open it, you don't own it" and all that. As soon as Lineage is released, I will install it but the stock rom is not bad.

I don't think I have the same privacy needs as you seem to have so I can't really give any advice on that front. I don't have adversaries on the nation state or even law enforcement levels so just having control over which non-FOSS is installed is enough to keep me happy.

I'm not sure if I actually answered any of your questions but I felt like my situation could mean that my opinions are still somewhat valuable. Please let me know if you have any questions I might be able to answer.

With the Fairphone you get more than just a replaceable battery. You get replaceable nearly everything. Also they do their best to ethically source the materials. In terms of ROMs there is also Iodé, also based on LOS, and if you go with a FP4 instead Ubuntu Touch.

Pixel because it supports GrapheneOS thus more secure and private.

Calyx isn't as good as GrapheneOS, they do a lot of snitching on you (including to Google and Mozilla) and they overlook critical details such as this one allowing the OS to contact 3rd parties such as Qualcomm.

Europeans are so lucky lol.

It is true, I haven't found anything akin to sandboxes in any other ROM. However, if you contain your apps inside a workspace, that seems fairly sandboxed to me, for the most part. It is unfortunate that Google's mobiles are not as repairable.

Let us know what you end up buying. I wonder if sandboxing can be implemented in other ROMs through some modifications in the Kernel (it's Linux after all).

Cheers

Just wanted to share my experience as someone that just updated to a p8p with GrapheneOS.

This is the first time I install a custom ROM in a smartphone and it hasn't been easy but I'm pretty impressed so far. I installed their sandbox Google Play/Services to keep using banking apps and other apps that need it. Everytime I install an app it asks if it should have internet access permission so I can use Gboard without the need to use NetGuard.

I can limit storage scopes for every app. If I want WhatsApp to only be able to access my Downloads folder, I can. If I want to trick it saying that it has access to my contacts, I also can.

The biggest issue for me now is probably install/use things in a way that just don't throw all the OS purpose out of the window and without asking questions considering how awful people can be when they think a question is dumb.

I was a bit disappointed with the lack of microSD but I realized I probably wouldn't use it. I also had to install a custom launcher to customize icons and such.

One thing that worries me is how to setup a way to find my phone in case I lose it.

Depends, grapheneos is good but if you dotn want it get a fairphone

Older Sony Xperia phones support LineageOS and have a headphone jack. Normally it isn’t until their 2-warranty is up that a LineageOS build is mainlined (likely because they aren’t high volume & are expensive). I got a III recently to running LineageOS for microG (but the proprietary camera app is missing).

Be aware that the cheaper ASUS Zenfones have a headphone jack, but are nearing a year since their bootloader unlock servers “went down for maintenance”. They’ll likely never come back.

Fairphone is known to have several hardware related problems, but they usually ignore or do not acknowledge them. Recently they tried to argue a hardware problem (ghost inputs) can be solved via firmware update, but of course it couldn't. Additionally you lose support for device when using custom roms (even /e/os). They only support google Android. You could buy from Murena but they can not help with hardware or firmware issues. Fairphone is very to patch their devices in terms of security.

But google is google. I would never give them money.

Really, it's gonna depend on what your top priorities are. I run a Pixel 6 Pro with CalyxOS and I love it. But for you, it depends on whether you really need top security or want to go for a more open and long term design (which may not be entirely beneficial or all that special now).

For the Pixel 8, you're gonna get much better cameras and more of those "Pixel Features" even when running something like GOS or CalyxOS. Its really nice cause you can even use GBoard and GCam and just firewall them (or however you do the equivalent in GOS), so you get the benefits without the downsides. Though it will be more expensive too.

With Fairphone, you're gonna get a more open design that likely will last longer. That said, it doesn't have a top end processor in it, so you have to imagine what it'll be like in 6-8 years trying to run Android 20. Longevity is nice, but not as helpful if it can't keep up physically with new releases. Also, with the Pixel 8 line now set to be supported for 8 years, it kinda... Undermines the Fairphone argument somewhat, though not to a huge degree.

Personally, if it were me, I'd choose the Pixel (and also choose CalyxOS as well, but that's more a personal choice, don't let the Graphene folks try and sway you with a bunch of FUD. CalyxOS is just fine, but GOS is a good choice too). It will have higher quality hardware, the processor should be able to handle tougher workloads into the future, and I think you'll quite like the experience.

But, the Fairphone isn't a bad choice either, and its definitely supporting a better ecosystem overall. It just won't have as good of cameras and may not run as well a few years down the road, which could be an issue for the longevity. It can also run CalyxOS as well, so you won't be missing out on using most other normal apps.

Really, it just depends on your use case and priorities. I don't think you can go absolutely wrong choosing either one though.

I replaced the Pixel 6 with the Pixel 8 257gb of storage, this solved my need for an SD card, I replaced the 3.5 headphone jack with an Ibasso DC03 pro DAC for the USB C port. Since I've been using phones with custom ROMs for years (also 2x Sony with SailfishOS) I was always looking for something that would be useful for me (the best choice would be the LG V50 if it could be loaded with GOS or DivestOS). The Pixeli8 is still an expensive phone (mine bought new from another user) but I like the GrapheneOS, compact design, camera and usability, and long-term support (hopefully I'll have it for a long time). I only have FOSS applications on my profile, and my work profile contains Gplay and a few apps that I occasionally use. I have no comments, everything works as it should and I like the compact design and the camera. The keyboard is also finally FOSS, open board (fork) with swipe function. I much prefer using it than Gboard with internet blocked.

App Sandboxes in Graphene? can someone tell me about this? is this a new feature?

Not what you're looking for but the Asus Zenfone 10 still has a headphone jack. I don't think you'll find a privacy oriented custom ROM for it though.

I have a friend who (just like me) has had a FP3, we were both very happy with it. Not sure why but he needed to replace it, got the FP5 but it was to clunky for him. Replaced it with a Pixel with Graphene likes it a lot.

I'd still still perfectly happy with my FP3 running Lineage/MicroG but my SD-card slot seems to be broken and I'm running out of space. I'm getting a FP5 in about a week, let's see if it's too clunky for me as well ^__^

Pixel has superior hardware security afaik

Have you checked out /e/OS for your oneplus? They do their own version of aurora and f-droid mixed together. Works well!

Is the fairphone's battery as easily replaceable as old phones were? I'd think that would make waterproofing really difficult

With the Fairphone (...) the ROM options are CalyxOS and /e/OS

Don't sleep on DivestOS and iodéOS. There's more OS options for the FairPhone.