NO.1 F7 Rugged Smartwatch Compared NO.1 F6, F2, Which one you would like?

NO.1 F7 (Engineering machine in this video) Rugged Smartwatch Exclusive presale in Bangood: https://goo.gl/7jhxu6 Apr 23 May 23 IP67 Waterproof 400mAh battery Buildin GPS Trajectory and other data OLED Colorful Screen Compass Sport Data Record F7 Giveaway in Facebook: https://www.facebook.com/001phones/posts/1215875648546281

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