Factory to Customer Sale offers BEST price/ USA Seller & Brand + Bluetooth Authorization + FCC Certification/ Our 900+ review for years VS other 100+ in one day, who seems reasonable?
Choice 1: USE as Cell Phone(Sim Card Needed, See description for "Which Carrier OK") / Choice 2: USE as Smartwatch(NO Sim Card Needed, See description for Android & IPHONE SYNC, Some Function Blocked with no Sim Card and Memory Card)
IPHONE Partial Available, CAN NOT SYNC ALL(See desciption for Detail)
ANDROID Phone Can SYNC all(APP needed, See description for how to find APP)
Warning: Charge by computer USB port ONLY, unauthorized charger MAY DAMAGE the battery. Don't Heat battery or leave the watch in hot condition. Stop using the battery on damaged or swelled condition and contact seller at once.