he product has Heart Rate Monitor， Activity Tracking， Colorful Breathing Light， Sleep Monitor， Sefie， Call Notification， Message Notification Clock Alarm Sedentary?Alarm functions. It is very convenient for your life.<br><br><strong>Features:</strong><br>You must connect phone through Bluetooth before use.<br>For Android 4.4 iOS 8.0 Bluetooth 4.0 or Above smartphones.<br>Heart Rate Monitor: The product with optical heart rate sensor， detect real time heart rate and give you useful tips when you do some exercise， catch accurate heart?rate.<br>Colorful Breathing Light: At a glance of different activity status， scientific fitness.<br>Call Notification: Breathing light + vibration dual remind， display with coming call name and phone number.<br>Slight lift your hands， comfortable without pressure: Gesture wake up， lift your hand to watch time.<br>APP professional data analysis.<br>Touch button: Tracking your record in real time， scientifically plan your sport.<br>It also has Sefie， Call Notification， Message Notification， Clock Alarm， Sedentary Alarm， etc.<br>As a smartphone companion and sports partner， it is the best product for yourself and your friends. ??<br>Perfect design， convenient to take along.<br><br><strong>Note:</strong><br>Before you use it， you must download APP(sma).<br>Before you purchase， you must confirm the band length suitable to you or not.<br><br><strong>Specifications: </strong>?<br>Brand: SMA<br>Color: Black， Black + Red (Optional) ? ? ?<br>Bluetooth: 4.0<br>Battery: 80mAh?<br>Band material: TPU<br>The band length: 23cm?<br>Product size: Approx. 23 * 1.8 * 1cm / 9.1 * 0.7 * 0.4oz<br>Product weight: Approx. 22g / 0.77oz<br>Package size: Approx. 11 * 6.5 * 6.5cm / 4.3 * 2.6 * 2.6in<br>Package weight: Approx. 71g / 2.5oz<br><br><strong>Package list: ?</strong><br>1 * Smart band<br>1 * User manual(English)<br><div id="descriptionImg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-sSxo.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-sSxo.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-ZT6E.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-ZT6E.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-5JcF.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-5JcF.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-B8FU.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-B8FU.jpg"><img class="lazy" src="http://static.tomtop-cdn.com/tomtop/icon/placeholder.gif" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-cFri.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-vqmj.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-vqmj.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-CoNS.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-CoNS.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-XVor.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-XVor.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-NDyj.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-NDyj.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-1b0f.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-1b0f.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-8KTz.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-8KTz.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-aNdW.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-aNdW.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-G8mU.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-G8mU.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-zi00.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-zi00.jpg"><img class="lazy" src="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-sSxo.jpg" data-original="http://img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/P/B/PA3649B/PA3649B-1-1452-sSxo.jpg"></div>