FD68S Multifunctional Watch 1.44 Inch Round Screen Healthy Bluetooth Watch1. Product Features: Compatible with Android and iOS systems, smart sport. Compatible with FitPro APP. A piece of injection-moulded body and stainless steel are fully formed reaching IP67 waterproof effect. High definition, the night version is clear and not blinding. Hardened glass screen, wear resistant and scratch resistant. Messages are remembered and delivered in real time, take photos and shoot video s. Real body monitoring, including heart rate and sleep status. Environmental protection TPU belt, high toughness, skin friendly, comfortable to wear. Built-in multiple sports modes, alarm clock, step counting and other practical functions. BT connection, stable without wires, convenient and fast. Pulse optic heartbeat, raise your hand to light up, monitor heart rate changes in real time. Built-in USB interface, plug and play, universal, practical, handy and fast.2. Product Specification: Model: FD68S APPFitPro Color: Black, Red, Pink, Green (optional) Waterproof: IP67 BT version: 5.0 Battery: 1 Polymer Lithium Cell, 3.7V 260mAh (included) Screen size: 1.44inch Applicable system: above IOS 9.0, Andriod 5.1 above tyre Material: TPU Case material: metal alloy + Lastics Screen resolution: 240240 pixels Charging Method: built-in USB interface Operation mode: Control button Chip: HS6620D Frequency band: 2.4GHz Standby Time: 40 days Package weight: 44g / 1.55ounces Packaging: 1228132mm / 4.803.19 * 1.26in