Thank you for the links and for the article. How long can record the smaller one? Actually if it can record for a day, it'd be enough for me.
I used to record all phone calls, until EU made Xiaomi remove the feature. It was very useful because I always could take notes later if they sent me a number, contact name or appointment hour.
At 128kbps the MP3 takes about 56mb per hour, I got the 16gb, so you have a lot of time, the battery of the smaller one I read is 800 mAh , according to the docs should last around 2hrs, but I try to recharge it as soon as I can
Thank you, hmmm... you wrote 2hrs, I guess it's a typo. In the page it's 20 and more than enough for my use case. And even the 4GB is overkill if you make a daily dump.
my mistake, according to the description "Working Time: About 7hours on one Charge Can store up to 96 hours of audio", I haven't let the battery run out yet
The Ali Express link says "Continuous recording:20hours". But since they offer sizes from 4GB to 32GB it's unclear which storage size that's for. That 20 hours could also be how long the battery will last while recording. But 20 hours is still enough to last the day and then some.
It's probably the battery life. 128 kb/s AAC is effectively transparent even for music, and only translates to 1.1GB. Even if it's uncompressed (1 channel 16 bit 44100hz PCM), 20 hours only translates to 6.35 GB.
I used to record all phone calls, until EU made Xiaomi remove the feature. It was very useful because I always could take notes later if they sent me a number, contact name or appointment hour.