3 ms·
The GBD-200 is a little more manageable: https://www.casio.com/us/watches/gshock/product.GBD-200-1/ https://www.casio.com/us/watches/gshock/product.GBD-200-1/
by Pfhortune 3y ago
The GBD-200 is a little more manageable: https://www.casio.com/us/watches/gshock/product.GBD-200-1/ https://www.casio.com/us/watches/gshock/product.GBD-200-1/
It uses a standard coin cell, but, does not have a heart rate sensor.