These are a great idea - lightweight, different and eye-catching, just SO badly executed. Ordered 2 - only 1 worked, which for a birthday present was pretty hard to deal with. Secondly they could be just so much better - if you can imagine the cheapest digital watch in a cheap rubber bracelet then thats what you get. Would far rather pay 20 Pounds for 1. working!! 2. waterproof 3. more durable strap 4. button you dont need a needle to change the mode.... Now it's just wait and see how long they last, if we get to the end of the month I'll be surprised!