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Wristbands, big data used to monitor people who commit 'less serious' crimes in China | South China Morning Post
MYKRONOZ] ZeTrack Slim & Full Featured HR Activity Tracker, Mobile Phones & Gadgets, Wearables & Smart Watches on Carousell
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HUAWEI WATCH D Smart Healthy Watch, 1.64 inch AMOLED Screen, Support ECG / Blood Pressure Monitoring(Silver)
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