I wrote exactly about this here: Sailfish OS: Should you upgrade to the Sony Xperia 10 III 
TL;DR:
So, should you upgrade?
As always, the short answer is “It depends”:
lets see what 4.5 brings as far as fixing bugs before making any hasty decisions…
Thanks for X10II minfree memory mgmt tip, very strange how I’ve missed it all this time.
I went “half” on the values, and first few days everything’s been good, and so much less dead apps when going in.
you’re welcome, glad that it helped!
What are the current suggested minfree values for the seine platform (X10II)? I found a lot of “testing” feedback but its difficult to find the “results”? Thx!
I recommend checking out this thread:
Usually before new phones were announced there were ‘leaks’ and spoilers in advance because people spotted something related to the new architecture in the git repositories. Have there been any signs of the 10iv being worked on as of now?
No, I am not aware of any ‘leaks’, just a speculation that there should be some hints for future devices after the new release maybe?
Absolutely worth it. 10III is so much faster.
I’ve had mobile network issues as well in the beginning when SIM was in slot 1, but in slot 2 it is100% . As I don’t need a SD card in a device with 128GB storage, I’m losing nothing.
the only caveat with using slot 2 is you can’t have VoLTE
Are the issues with the 10 III’s microphone and noise cancellation solved? When SFOS was first released I remember people being very unsatisfied with it to the point of calling it unusable as a phone.
I never had issues with echoes or the microphone.
Me neither. I never use the loudspeaker though.
same here, calling works fine.
loudspeaker is not great, but that was also the case with my XA2 and my 10ii
As a 10 iii user you will not notice the echo. The other party will, most probably.
As as person who runs its own business I can confirm that 10 III can be considered unusable if you want to have reliable conversation with person on the other end. Not a single call with my clients went without them proposing to hang up because then couldn’t stand the echo.
For some people echo issue is not really a issue and I can understand that there is a lot of “text-oriented” people who couldn’t care less about phone calls, unfortunately this is not a case for me and until this is resolved my 10 III will remain as a toy.
Since there is literally nothing going on for months on the sony side of things I find it very unlikely that the next SFOS update will bring anything new regarding 10 III fixes.
The other remaining issue is the pretty much unusable camera.
So if you care about those two things - stick with 10 II, if you don’t then I can highly recommend 10 III as it’s MUCH faster then for example my XA2 running SFOS.
i’m mostly using a bluetooth headset while at home, and bluetooth as well while in my car - not sure there is echo in that case?
there is not. The problem with echo happens because microphone from the cell phone itself picks up audio from speaker due to the nature of them being close to each other. Usually cell phones have multiple microphones to tackle this issue and if I’m not mistaken the issue with sony open source code for 10 III is misconfiguration (or miscoding?) of logic for echo cancellation (specifics can be found on github).
That’s why current workaround include one of the following:
Never had anyone complaint about that. In the beginning i specifically asked, but it is just fine.
I’ve had a comment about echo a few times, but lowering the speakerphone volume helped in those cases. Then again, using a wired headset results in absolutely flawless call audio quality.