Aaron Christophel | New hack-able fitness tracker to Arduino with Full Touchscreen @atc1441 | Uploaded February 2020 | Updated October 2024, 3 hours ago.
Here is a short overview of two very interesting fitness tracker that are quite cheap and easy to update to your own firmware.

More infos on PineTime here: wiki.pine64.org/index.php/PineTime

UTELITE P8:
de.aliexpress.com/item/4000557708951.html


If you are new to nRF52 Fitness tracker hacking please watch my other videos about it.
youtu.be/3gjmEdEDJ5A
youtu.be/LDGxU-i7z7U
youtu.be/0Fu-VSuKHEg