I wanted to share my experience in the transition from FP3 to FP4 as there may be others that can benefit from my thoughts. First, my FP3 suffered some water damage which led me to consider FP4 even though FP3 had lasted me 2.5 years with no problems. I would have not considered upgrading otherwise. I purchased the FP4 with 256GB, 8GB RAM and I have been using for about one month.
Although FP4 is a little bigger, it feels less boxy and clunky. I am still adjusting to the small increase in size which unfortunately does affect my ability to use it one handed. I was concerned with the no headphone jack but I have found it actually convenient and a non-issue. I do not notice any major increase in performance but I do not use my phone for anything more than communications, basic apps, and photos and never felt the FP3 lagged.
I am disappointed that the camera (and additional mods) are not as comfortable to use as the FP3. I also find the battery life to not be as strong as FP3, is it just me or was the FP3 battery and charging way above average? I’m surprised because the FP4 also only has one SIM card slot, which is very inconvenient for me in a developing country, but the battery does not last as long which I find counter intuitive.
One small thing but something I consider a major design flaw is the fingerprint sensor. One needs to first physically press the button, and then scan the fingerprint, making it a two step process. The FP3 only had to touch and it would unlock. The position of the sensor on the side took some adjusting but is not a big deal.
All in all I am actually considering giving the FP4 to my wife and purchasing another FP3. Has anyone here had similar experiences? If not, I hope my review is helpful for perspective buyers.
You can change this in the settings under Security - fingerprint unlocking behaviour. I personally have it disabled as I touch the sensor when putting it Info the pocket e.g. and than its unlocked, i.e. due to the location its more likely to unlock the phone without wanting it.
Just for the records to avoid confusion: the FP4 is a dual SIM phone, the second “slot” is an eSIM.
Reg. Battery consumption: for me there is no real difference between FP3 and FP4
as the LED on the FP3 intially was only used as charging indicator and only later became usable for notifications, too, I was alread accustomed to not having a notification light, so that’s fine for me
what I do miss sometimes is the charging indicator; so far I’ve never run out of battery but there were times when the phone was lying on a table for quite a while where I didn’t notice it was already down to 20%. A charging light would have made me connect the phone to power more in time
missing headphone jack
I bought an adapter that works fine, so not a problem for me
it became somewhat harder to use the phone with one hand; it’s still ok-ish
much more reliable than on FP3, for me it’s an improvement
I got 0.5 to 1 additional day on the FP3, so here it’s a downgrade for me
it’s too sensitive, so I disabled it completely and do not miss it
Yes, I suppose I should have checked the fine print a bit better with the “dual SIM” but that is not a common interface in the country where I am based. I don’t know how common the eSim is in Europe so perhaps that’s my fault but the marketing of “dual sim” with an eSim is a little misleading.
I don’t think the overall size of the phone will be a problem. IIRC it’s about one or two mm higher and less than one mm wider [Edit: in fact it’s 4mm, see later posts]. The screen got bigger because the FP4 almost has no bezels so that the screen takes up basically all of the front side, which isn’t the case for the FP3.
Yes, Alain, you are right, it’s 4mm, not 2mm. And the “less than one mm” is for the thickness instead of one of the other dimensions.
But I have put the FP3 on top of the FP4 and the difference is quite small. If someone for example has a trouser pocket where the FP3 still fits somehow and the FP4 doesn’t, I personally wouldn’t put the FP3 in there either as it’s too tight anyway in my opinion.
I put the two phones next to each her some months ago and I agree the difference between both is small especially in my big hands. But if the FP3 was already big for somebody, then the FP4 can feel like huge because of some millimetres more.
I would add the following personal consideration: with the FP3, because I did not trust the plastic as frame material, I always used one of the cases. The FP4 makes a much more solid impression, so I use it without a case. With case on the FP3 the external size differences shrink to insignificance (especially with the enlargement-issue of the FP3-case…)
So that leaves the longer thumbs that you need because of the larger screen.
Once you’ve got it working properly, a good rule to follow, is: as soon as you encounter a failure and have to fall back on your other unlocking method (PIN, pattern or whatever), go immediately to settings, delete the oldest fingerprint record and make a new one. This is inevitable as our fingertips change in time, especially with the seasons.
For me the FP4 sensor is much more reliable in recognizing any finger ( and has its on obstacles of being too sensitive and to scan multiple times without lifting…)
The FP3 Sensor works fine in Apps and is a (nicely said) nightmare when it comes to unlocking the phone. The sticky tape as mentioned by Volker helps a lot and makes it okish reliable for me…permanently re-scanning my fingers would be quite annoying in my eyes…