Screen size: 2.01 inches Resolution: 320*390 pixels Standby time: 60+ days, working time: 20-30 days Battery capacity: 1000mAh large capacity Color: Black Age group: adults, men Waterproof grade: IP68 Fits Wrist Sizes: 6" - 10"+ Screen: full touch Packing list: Smart Watch*1, Magnetic Charging Cable*1, User Manual*1 About the watch: Wireless transmission distance: 10 meters (33 feet)?The wall will affect the bluetooth reception, link please ensure that the APP is running in the background About Battery Life: Light use:Receive messages/take calls relatively little, exercise for a shorter period of time, battery use about 20-30 days or so. Medium use: receive messages/calls relatively more, exercise time is shorter, battery standby about 10-20 days. Heavy use: Receive messages/take calls frequently, longer movement time, battery standby about 7-10 days or so. *Currently all Bluetooth smartwatches can not reply to messages *Haulvean smartwatch waterproof rating of IP68, refers to can be used for daily hand washing, shallow water swimming within 30 minutes, does not support contact with warm and hot and other water environments, frequent swimming may affect the waterproof function life. *If you have any problems you can contact customer service to deal with, we will give you a satisfactory solution, or read the QA below, thank you! Instructions for use: 1.need to download the accompanying app (there is a QR code in the manual and on the watch). 2.Open the accompanying app and bind the Haulvean smartwatch with one click. 3. If you encounter a disconnection issue, please confirm that the accompanying app is running in the background of your phone. This is necessary. 4.All data on the watch is for reference only and should not be used for any other purpose. 5.The time and weather on the watch can be synchronized with your phone settings. If synchronization is not enabled, you can turn it on in the watch settings.