Huawei P30 Lite. 4 years. More or less 1:1 size of S10e, compact enjoyer with big hands. Got battery replaced for a whopping $20, officially. No security problems, keep my Firefox with uBO updated, solid firewalling and app permissions in check.
I have a whopping total of 5 closed source apps (including Whatsapp and Discord sandboxed in work profile) with internet connection, all of which are fully safe as far as security goes, if not privacy. One of the other apps is safe for privacy as well. All of my apps that are not these 5, are installed from F-Droid.
I will upgrade though, because the camera on this at night is no longer competent enough, and there are camera sensors far superior than 1/2.8" on main and 1/4.0" on ultrawide. (1/1.0" main and 1/1.5" ultrawide are peak hardware these days, amounting to atleast 2x better photos and videos which is significant and worth it.)