Our brave new digital world presents us new opportunities — and sometimes, new challenges. When should you change my Facebook relationship status after I start dating someone? How do you find time for a side project when you have a day job? How do you find a good fitness workout on the web — and know it's reliable?
Our Twitter Advice Column, #MashAdvice, will help you navigate digital questions related to relationships, productivity, fitness and more. Answers will come from your fellow digital natives who most likely have firsthand experience with the very same issues. Last week, we discussed Halloween costume ideas.
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This week, our question comes from Maddi, who asks for advice on which fitness gadget to buy:

Do you own a fitness tracker? What should you take into account before purchasing one?
Join us Tuesday, Oct. 8 at 3 p.m. ET on Twitter with the hashtag #MashAdvice to get some ideas, and maybe offer a few of your own.
The best ideas will be included in a roundup at the end of the week.
Image: Nike