also got a fairphone 3 with /e/.
before i had /e/ on a onenote 5t.
the fairphone is a bit weaker than the onenote, and in particular wechat (which i need to use here) gets hit by the OOM killer frequently. (at least that is what i think is causing it to die)
/e/ is just great however. the most polished experience i ever had with an alternative phone OS. (having used sailfish, firefox OS, tizen, lineage...)
i think the OS is actually the more important selection criteria when it comes to privacy.
the fairphone is a nice device, and for how it is built, i think it is worth the price, but if you can't afford it then any other cheaper device with /e/ on it is a decent alternative that gives you just as much privacy.