LETSCOM Fitness Tracker HR, Activity Tracker Watch with Heart Rate Monitor, Waterproof Smart Fitness Band with Step Counter, Calorie Counter, Pedometer Watch for Kids Women and Men

• Heart Rate & Sleep Monitoring: Tracks real-time heart rate automatically & continuously and automatically tracks your sleep duration & consistency with comprehensive analysis of sleep quality data, helping you adjust yourself for a healthier lifestyle
• All-day Activity Tracking: Accurately record all-day activities like steps, distance, calories burned, active minutes and sleep status
• Multi-Sport Modes & Connected GPS: 14 exercise modes help you better understand specific activity data; Connect the GPS on your cellphone can show run stats like pace and distance and record a map of your workout route
• See Calls & Messages on Your Wrist: Receive call, calendar, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) notifications on display; never miss the messages that matter
• Built-in USB Plug: Easy to charge with any USB block and computer; no charging cable and dock needed; one single charge gives you up to 7 days of working time 

Product details

Color: Black

• Product Dimensions: 9.4 x 0.8 x 0.4 inches ; 0.8 ounces
• Shipping Weight: 2.4 ounces (View shipping rates and policies)
• ASIN: B0779SKCXW
• Item model number: LS-003
• Batteries 1 Lithium Polymer batteries required.
• Average Customer Review: 3.6 out of 5 stars 178 customer reviews
• Amazon Best Sellers Rank: #20 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • #1 in Pedometers
  • #1 in Fitness Trackers
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Review:

Three weeks in.. functioning perfectly. Easy to use.. why spend all the $$ on a smart-watch or name brand fitness watch when you can get this item. It does all I need it to do.... notify me when message comes in, tell time, and track my steps and sleep. Easy to use interface on my phone.

Love this. Works well and super easy to set up, best $30 I spent. Its pretty awesome/ and does more than I expected. It even has a wake up alarm clock

I love this product so much. I bought a second one for my mom. It isnt ultra hi tech but it does everything you need to. It counts steps, heart rate etc. It tells the time and can also link to your phone for calls and texts.

I bought this to see if I would use it and if I could justify paying for an apple watch. I also convinced two of my co workers to buy them too! You only need to charge it every 5 days or so and when it does need to be charged it charges in about 30 mins.
The customer support is also awesome. Two of the bands broke and they replaced them immediately for me.