Custom properties: Brand: Runmefit Time to market: 2023 Applicable people: ladies, men, neutral, teenagers, couples, adults and others. Operation mode: touch+key. Wrist band material: silicone Product weight: 106(g) After-sales service: one-year warranty for non-man-made damage. Packing list: full set of accessories in color boxes Version type: Chinese mainland Compatible platform: iOS Functions: intelligent reminder, remote self-timer, sleep monitoring, blood oxygen detection. Colors: GTS5 call version black, GTS5 call version blue, GTS5 call version light gray, GTS5 call version pink black frame, GTS5 call version pink gold frame, GTS5 sports version black, GTS5 sports version blue, GTS5 sports version light gray, GTS5 sports version pink black frame, GTS5 sports version pink gold frame, sports version without call function, sports version 3k order. Communication type: no card insertion. Duration: 7-14 days Charging method: magnetic charging.