20 Most Recent Sportline 555 Women's Calorie Tracking Fitness Watch Questions & Answers

I found the manual with the pedometer search engine.

Find the manual here

It´s hard to believe, but there is a pedometer manual search engine, they may get it within hours. Just send them a request.

Hi, Are you referring to 'ACt' which is displayed on the watch face? If so that means the watch is in a advance calorie tracking mode. Press the SPLIT/RESET (SR) key when the watch is is normal time of day mode to goto the Calorie tracking mode. Return to normal mode by pressing the MODE key. hope that helped.

https://assets.academy.com/mgen/99/10089799.pdf

It's rechargeable and you shouldn't really try to get to it.

Lasts about 4 days on a full charge if you don't play music.