【Long-Lasting Battery life & Extra Replacement Battery】: 500mAH lithium battery, average using time is 2 days. We also give you one piece Free Battery as a Gift. Never worry about out of battery problem. 【Waterproof and Touch Screen】: Our smart watches has an awesome display as well as the hypersensitive screen touch, which can supply you the clear display even in the glare. 【Multifunction】Dial via watch SIM or Bluetooth optional, Pedometer, Calories Calculation, Sedentary remind, Sleep monitoring, Remote photos, Music playing, Alarm clock, Two-way anti lost remind, alarm clock, voice recorder, muti-timezone, muti-language, daylight saving time and notification push including facebook, twitter, email, calls, texts, etc. (ANDROID& SIM CARD: all functions can be used. IPHONE: only supports Partial Functions. PLEASE SEE THE FUCTION CHART BEFORE YOU PLACE OR 【Comfortable and Durable】: Our smart watch is super light and comfortable, precision laminating process. Watch Strap is made of Sturdy and Soft Nano TPU85 avoid sweat during sports and movement, and guarantee the durability of the smartwatch. adjustable watch strap to any size length you want to fit your wrist. Best companion in daily time and outdoor sports activity. 【Smart Gift for You and Lovers】: This is a new upgrade waterproof smart watch with so many function, easy to use. it is suitable to any age persons. We will offer you LIFETIME WARRANTY of our smart watch, purchase it without any worries. Our bluetooth smartwatch is your best choice, you won't regret. Go and get your lovers a big surprise!.