In a word good, that little internal speaker keeps on improving. Obviously this is only part of the audio experience with an iPhone but a huge part nevertheless and that speaker means a lot to those of us who use speech with a device or choose to use it when answering calls quickly using the built-in internal Speakerphone.
Ever since I owned my first iPhone 3GS I’ve enjoyed the privilege of hearing the quality of that little speaker improve with each model so - in that way alone - each successive model of iPhone has been worth upgrading to from the previous version. Apart from that nothing else seems to have changed much in the time since I last used an iPhone though I’m still to find out whether the latest Bluetooth lossless streaming profiles are supported, if they’re not supported at this time then it surely can’t be too long until they are. ********** Those of a positive and enquiring frame of mind will leave the rest of the halfwits in this world behind.