Fitbit, Jawbone, Nike had 97 percent of fitness tracker retail sales in 2013 | MobiHealthNews
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Amazon.com: GOSETH Compatible with Fitbit Charge 4/Fitbit Charge 3 Bands with Case, Silicone Strap with Shatter-Resistant Protective Frame for Fitbit Charge 3/SE/Charge 4 and Special Editions(Black&Red) : Electronics