I'm on my 3rd one.  The first one had the battery and band splitting almost at the same time.  That was at about the 4 month mark.  The local store wouldn't do anything for me so I had to send it in, but MS sent me a new one.   Second one lasted about another 4 months and the band split, this time the MS store just replaced it with a new one no questions asked.  I really like the device a lot but it's absolutely frustrating.  
I just talked to another guy who gave up after his 4th one and finally just got a refund from Amazon for it.
				
			I just talked to another guy who gave up after his 4th one and finally just got a refund from Amazon for it.
 
	 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
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