HAYLOU Solar 5 Voice Calling Smartwatch 1.58'' AMOLED Display 60Hz Smart Watch 24H Health Monitoring Sports Smartwatch for Men 1.58'' AMOLED Display │ Bluetooth Calling │ 24H Health Monitoring │ Upgrade Bluetooth 5.3 Chip. 100+ Workout Modes │ 150+ Watch Faces │ IP68 Waterproof │ SOS Emergency Call. Recording function │ Local music │ Album storage function│ 60Hz high refresh rate. Voice assistant│ Smart Message Notification │ 40 Days Battery Life. Product Parameters Product Name: HAYLOU Solar 5 Display: 1.58" HD Display Resolution: 480*480, 60Hz high refresh rate Sensors: Heart rate sensor, motion sensor, blood oxygen sensor Bluetooth: Bluetooth V5.3 Waterproof Rating: IP68 RAM:  960K SRAM+ 64Mb pSRAM ROM: 1GMb NAND FLASH Battery Life: Approx. 40 days ( long battery life mode enabled ) Battery Capacity: 350mAh Wristband: 22MM Durable and comfortable silicone strap Data Sync Platform: Haylou Fun Main Functions Bluetooth Calls / Make/Answer Calls / Incoming Call Reminder / Smart Message Notification / One-tap Connection Prompt / Voice Assistant / Bluetooth 5.3 / SOS Emergency Call / 100+ workout modes / Calorie monitoring / Pedometer / Goal-achieved Reminder / Workout Recording / Album storage function / Local music / Recording function / Support NFC / Remote shutter / Sync with Strava Health Functions Sleep Monitoring / Heart Rate Monitoring / SpO2 Tracking / Female Menstrual Cycle / Stress Test / Sedentary Reminder / Water-intake Reminder / Medication Reminder / Hoart Rate Alort / Breathing Training / Motion Detection. Information Push Twitter / Facebook / Gmail / WhatsApp / Messenger / QQ / WeChat / TALK / News / Tik Tok / LINE / YouTube / Information, etc. Function Overview OTA upgrade / Music control / Vibration adjustment / Volume adjustment / View mode / Remote shutter / Built-in watch faces / 150+ online watch faces / Custom widgets / Weather / Alarm clock / Timer / Stopwatch / Calendar / Calculator / Find phone / Flashlight / Do-Not-Disturb mode / State of charge / Raise-to-wake / Brightness settings / Power on/off / Album storage function / Local music / Recording function / Support NFC / Remote shutter / Sync with Strava Battery and battery life 350mAh, 3.8V lithium-ion polymer battery Basic usage mode: 40 days Daily usage mode: 15 days Supported Languages English, Simplified Chinese, Traditional Chinese, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Polish, Russian, Dutch, Turkish, Bengali, Indonesian, Czech, Thai, Persian, Hebrew, Slovak, Hungarian, Ukrainian, Vietnamese, Belarusian, Malay. Whats In the Box: Smartwatch (including standard strap) Charging Cable Instruction manual