I've been using a FP4 for the last year it is fine as a basic phone however:

- I've needed to have it repaired under warranty as some of the mics didn't work.

- I've needed to get their long life usb cable replaced under warranty. The connectors on the ends seem pretty flimsy and will break over time.

- For software updates they tend to be every 1-2 months with bug fixes and security patches, major Android versions take more than a year so when they talk about 5 years of software support it is more like 3 year stretched out to 5.

I use a FP4 and it's been great so far.

I love the replaceable battery, the close to stock Android and it seems to be built very well (having dropped it many, many times).

Mot being Apple, Samsung or Google is a great plus.

How have you benefitted from the replaceable battery? I like the idea, but when does it come in handy?

On almost every phone I have owned, battery degradation is the primary complaint that I have after the first few years of use. Unfortunately, when the battery is just glued to the back of the screen, what should be a cheep and easy fix, has become impossibly risky. Instead, I am left nursing a dying battery to the point where, for one phone, I would carry an external battery pack everywhere since my phone battery could not last the day...

When I travel I bring a spare battery. Then I don't have to keep charging the phone all the time, and sometimes it might not be possible. With a spare that's one thing less to worry about.

The second thing is battery degradation. After a while the amount of charge will drop, and replacing it with a new and fresh battery feels like giving the phone new life.