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photoelectric sensing technology and sophisticated heart rate algorithm continuously provide accurate heart rate recordings, allowing you to know your heart better High precision acceleration sensor fitness tracker accuracy rate is over 90% n case the bracelet has connected with APP, it will vibrate to remind you incoming phone call, make sure you won’t miss any important call in the noisy outdoors or even when your phone is put in the backpack
|Battery Type||Li Ion|
|Comabtible||All Smart Phones And Tablets|
OEM Anti-Theft Backpack with full-featured pack makes space for everything essential with zipper pockets on the inner side (hidden) for safety, plus a ready-to-go interior with padded laptop compartment and other storage solutions.
|USB Charging Port||Yes|
|Accessory Type||USB Interface|
|Special Features||Back Padding|
|Item Height||42 Centimeters|
|Item Length||30 Centimeters|
|Item Width||12 Centimeters|