I got ready to replace the broken strap with Fitbit and assembled jewelry pliers, tweezers, good light, magnifying glass and in the end none of it was needed. The old strap came loose with a fingernail, and after I scraped the dirt where the strap attached to the FitBit body (phew!), the new one snapped into place with another fingernail. You *need* nails to do this. But it's actually quite simple.
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