Minimalism Sport Watch: Only one button, easy to set,Adopt LED displays, make reading the time much easier. Best for outdoor sports, like night run, running, climbing, hiking and so on. Power Saving Design: 2 Mode Watch - Normal mode and power saving mode, When you do not need to watch time, then it turn to power saving mode automatically after 5s. Adjustable Watch Wristband: The watch bands is made of rubber , whitch can be cut down and resize, make it fits adults and kids. Wrist Circumference: 130mm-175mm/5.11-6.88 inch ,Product pictures have adjusted graphic descriptions,Collocates with a magnet on the clasp, very easy to put on or take off. Water-resistance: 30M waterproof (3ATM) watch, No problem for sweating, hand wash, rain day, withstands splashes or brief immersion in water. Purchase Without Worry: if you have any questions, please contact our customer service through amazon order, and we will give you a satisfactory reply and solution in time.