Can work Features: Local music, mobile music, Bluetooth playback, dial-up/incoming calls, call logs, contacts, custom dial, multiple languages Features :local music playback, bluetooth connection playback, mobile music, dial-up/incoming calls, call records, contacts, custom dial, multiple languages Basic functions: stopwatch, countdown, find the phone Health monitoring: exercise patterns, sleep, heart rate, blood pressure Reminder function: alarm clock, SMS/app message, Bluetooth disconnected alarm, heart rate alarm, sitting, sports goal achievement reminder General functions: binding device, wear detection, bright screen of wrist turn, brightness adjustment, lock screen duration, main interface style setting, low-power mode, no-disturb mode Other functions: photo taking, female function (only remember menstrual period, pre-pregnancy, pregnancy, mother period), reset password, device broadcast, switch setting Language support Bracelet language: China, Britain, Japan, Germany, France, Italy, Russia, Spain, Portugal APP Language: Chinese, Traditional Chinese, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Vietnamese, Portuguese, Turkish, Czech, Polish, Persian Chinese, Japanese, Korean, Latin, Cyrillic; Latin :(English, French, Spanish, Portuguese, German, Dutch, Vietnamese, northern, central, southern Italian, southeast Asia, Africa); Cyrillic includes (Russian, Eastern European, Asian) and can cover 150 countries APP/APK download mode Android and apple app syncing: H Band System requirements Android 4.4 or above, IOS 8.0 or above, bluetooth 5.1 compatibility downward Main control chip HD 5515 CPU and FLASH 1MB FLASH+256KM RAM， Extended 64 MB + 128 MB FLASH Music Storage FLASH 128M Touch way G+F single touch Battery capacity Polymer 250 mah Header size Diameter 41mm. Thickness 12mm screen 1.28TFT The resolution of the 240*240 The material metal Normal use A week The standby time Half a month Package size (mm) 140*80*40 mm Gross weight (g) 200g Net weight (g) 60g