Dosto aaj ki video mai maine unbox review kiya hai M4 Smart Band yeh smart band maine 469 rupees mai kharida hai isme bohat sare feature milte hai .
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https://www.amazon.in/dp/B07KT419ZW/ref=cm_sw_r_cp_apa_glt_fabc_RY36PS5MGDVJB7DTJGFHOption 2 :????
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Intelligence Bluetooth Wrist Smart Band Watch/Health Bracelet Smart Watch/Activity Tracker Bracelet Watch Smart Fitness Band/with Heart Rate Sensor Compatible All Androids iOS Phone Tablet
Blood Pressure & Heart Rate & Blood Oxygen Measurement & Sleep Monitoring: Tracks real-time heart rate automatically & continuously and automatically tracks your sleep duration & consistency with comprehensive analysis of sleep quality data, high-performance CPU to monitor blood pressure & blood oxygen
See Calls & Messages on Your Wrist: Receive/Rejection call, calendar, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) notifications on display, fitness tracker band let you never miss the messages that matter.
Water resistance upto 10 meters
All-day activity tracking: Track steps, distance, calories burned, active minutes, you can check daily activity and time on OLED display or APP
TFT HD LCD touch screen, there have four different operation interface for you to change, Resolution ratio: 128×64 pixel; 380MAH polymer lithium battery, standby time up to 5 hours after 1.5 hours fully charged
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https://www.youtube.com/watch?v=d1gr3ijgtwQ