Selling Point 1.43 -inch amoeled 466*466 high-definition color screen, Silfi 561 Chipset one -click call, three keys quickly operated with rotary encoder, IP67 waterproof APP compatibleIOSAndroid Android4.4( and ) above IOS9.0(and)above APP compatiblelanguage English, simplified Chinese, Japanese, Korean, GerAdult, French, Spanish, Arabic, Russian, Traditional Chinese, Ukrainian, Italian, Portuguese, Dutch, Polish, Swedish, Finnish, Denmark, Norway, Hungary, Hungary , Czech, Bulgaria, RoAdultia, Slovakia, Latvia, Indonesian, Thai, Turkish, Vietnamese, Push, Lithuanian, Estonia, Slovenia, Croatian, Greek, Philippine, Hebrew Lai, Malay, Serbian, Persian. APP Name Dafit Solution Moyoung DiAdultsions Diameter44mmThickness11mm Screen Type 1.43inch AMOELED Resolution 466*466 Screen Material Glass Touch Type Full Touch COF Body Material Plastic+Zinc Alloy Strap Material Silicone Bands,Metal Bands Vibration motor 0827 Welded wire motor Button Three buttons with rotary encoder Battery Capacity 300mah Waterproof Level IP67 Charging time 2 Hours Standby time 25-30 Days Using time 10-15 Days Charging Method Magnetic suction Horn 0815 Welding Speaker Microphones Strong resistance-45DB sensitivity CPU Model Sifli 561 Bluetooth Version BT5.2 Heart rate chip model HRS3605 Calling Chip LIS2DOCTR RAM+ROM RAM928KB ROM256Mb Solution (UI) compatible language Firmware languages: English (default), Chinese, French, Spain, Italy, Russian, Portugal, Japanese, Vietnamese, Arabic, GerAdult, Poland, Czech Republic, Denmark, Finland, Netherlands, Slovak, RoAdultian YIQUN Its my to service for you and looking forwarder to hear from you soon !