A friend is going to switch her Fitbit to her right wrist and wear her Apple Watch on the left. She's a long time Fitbit user and does challenges with her friends and family. 
I've only been using the Fitbit for a few weeks and don't really do the challenges so I don't mind losing my info. But I like the sleep tracking so at night when my Watch is charging I'll wear my Fitbit Charge.
	
		
			
		
		
	
				
			I've only been using the Fitbit for a few weeks and don't really do the challenges so I don't mind losing my info. But I like the sleep tracking so at night when my Watch is charging I'll wear my Fitbit Charge.