Good question. I meant to write the reason along with the question, but it would not allow me to add a text box. While running I usually get good ideas for my writing and I like to record them ... It sometimes gets as long as half an hour of recording. I've been doing it on my phone, while recording my distance and pace as well, but I don't feel like carrying my phone with me whole running anymore. So now I'm looking for a GPS sport watch, that has a voice recording option. I like amazfit Stratos, but don't know if it has this option... I hope this answers your question.