RKSTN Smart Watch,1.36 Inch HD Color Touching Screen With Heart Rate And Sleep Monitor,Bluetooth Call,IP67 Waterproof Smart Fitness Watch Product parameters: 1.36inches Screen, touc-hing panel,IP67waterproof,Metal for Main Body,3300 High end low power sensor （High accuracy) Bluetooth Version:5.0 Heart Rate、Blood pressure Model No.: AK03 Water proof:IP67 waterproof PCBA Specification:Comments Product Type / Material:Smart bracelet/main metal, TPU watchband Internal Memory for storage (ROM+RAM):16MB FLASH + 160KB RAM Max External Memory Support (T Flash) (GB):64MB LCD style:390x390 Screen Size :1.36inches Colorful LCD Touc-hing Panel:full touc-hing Battery Type:210mAh Blood pressure:YES，by software Blood oxygen:N/A Compability:support IOS 9.0+ and Android 4.4+ Notification(Withcontent for Faceboo-k, TWITTE-R,What app,Wechat,Line Kakao Talk lnstagram,Messaging,Calling)Optional Encoder:Yes Pedometer:Yes Music player:Yes Bluetooth call:Yes Contact person:Yes Phone dialing:Yes Sleep Monitor:Yes Remote Camera:Yes Weather :Yes APP Language support: Support 13 languages (Chinese, traditional Chinese, English, Korean, Japanese, German, Russian, Spanish, Italian, French, Ukrainian, Arabic, Portuguese) Preload Input method:Chinese, English, Hungry, Japanese, French, Spanish, Portuguese SMS:YES, view onl-y, cannot reply OTA:support APP name :Da fit Product size:1.36x1.36x0.43 inch Package size:11.4x8.2x5.1cm/4.48x3.23x2 inch Net weight:51g/0.11 lb Gross weight:162g/0.35 lb The Package Include: 1 x Smart watch 1 x Charge cable 1 x Use manual