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Hands-on: Fitbit's new Flex 2 and Charge 2 Activity Trackers, plus Blaze & Alta updates | DC Rainmaker
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These Accessories Make Fitbit's Waterproof Wearable Look Like Jewelry — and They're Actually Pretty Stylish
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Fitbit's Charge 2 and Flex 2 are next-gen trackers that blend fitness and style | Ars Technica
Review: Fitbit Flex 2
Advanced fitness + health tracker | Shop Fitbit Charge 5
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Fitbit Flex review: A most versatile, feature-packed tracker - CNET
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Fitbit Charge 4 | Advanced Fitness Tracker
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