You can now use trackers and apps to fix your posture, spy on your dog, find inner peace, monitor your baby’s breathing, and more. We live in the future, didn’t you know? 1. If you wanna lose weight: Fitbit Flex or Jawbone UP24 Fitbit / fitbit.com Jawbone / jawbone.com   Both of these wearables come with accelerometers that track your steps (experts recommend at least 10,000 a day — how are you doing with that?). They also come with apps that offer advanced and easy-to-use food tracking […]

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