Sony Xperia 1 III. I updated every 2 years until last year when I bought this one at a severe discount. Got fed up with Chinese phones and their severe lackluster software. Also into cameras so this one was a right fit. Has many issues but I like it. Been doing this since my iPhone 4 and I don’t miss Apple at all. I love the openness of android and the ability to tinker.
Also have the Sony earbuds which I much prefer over the Galaxy Buds Live I used to own (came for free when I bought the S21 for the missus). Apart from that, only an android tablet (S7+).
The most user friendly way is to download Shutter Encoder and drag / drop your file into it and select MP3 / Wav from the drop down menu.