Heart rate Monitor.Sleep Monitor Piston Contact Charging interface Bluetooth 4.0. IP67 Water Proof Compatible Android and IOS 0.42 "OLED screen with touch key Call reminders. SMS notification Pedometer: Motion planning step. Sport mileage record Data sharing on facebook.twitter.wechat APP and other APP Key Features Heart rate Monitor.Sleep Monitor Piston Contact Charging interface Bluetooth 4.0. IP67 Water Proof Compatible Android and IOS 0.42 "OLED screen with touch key Call reminders. SMS notification Pedometer: Motion planning step. Sport mileage record Data sharing on facebook.twitter.wechat APP and other APP What In the Box1 x Smart Watch 1 x Charging Cable 1 x User Manual 1 x Original boxSpecifications of M2 Wristband Heart Rate Monitor Smart Watch Sports Reminder Smart Band Fitness Tracker Bracelet - Olive SKUGE779AC13VMOZNAFAMZ shsb-M2 Production countryChina Size (L x W x H cm)10 x 10 x 8 Weight (kg)0.25 ColourOlive100% Hot and High QualityWe will carefully test every item before shipment.Notes:Due to manual measurements, please allow an error of 1-3 cm.Due to problems between different monitors, the image may not reflect the actual color, please refer to the actual product.If there is a problem with the product, please contact us.Thank you for understanding.FEEDBACK:1.If you are satisfied with our products and services,please leave your postive feedback and 5 stars.2.If you don't satisfied our products,pls contact us before you leave negative feedback.we guarantee we will 100% slove any problem for you and make you satisfied.SERVICE:1.We care about our valued customers,and will always try to help you,hope to establish long business with you.939.Please contact us by Jumia Customer service before leaving any negative feedback or opening and dispute on the site. Please give us the opportunity to resolve any problem.Thank you.