ZL54C Smartwatch with 1.8 HR display, blood pressure and O2 monitor. Submersible, multiple sports modes, app notifications. •Incoming call notification. Dialer for making Bluetooth calls. •Push notifications from apps such as WhatsApp, Facebook, Instagram, etc. and SMS. Vibration alerts. Stores up to 5 messages. •Weather information (via App). •Stopwatch, countdown, alarm, remote smartphone camera shutter, remote music playback control, find watch/phone, do not disturb mode, wrist-turn screen backlight, brightness adjustment. •Various dials of different styles, interchangeable. •Supported languages: Spanish, English, German, French, Italian, Portuguese, etc. •Includes magnetic USB charging cable. Health Features: • Heart rate, blood pressure, and blood oxygen monitoring. •Pedometer with step, distance and calorie measurement. •15 sports modes: walking, running, cycling, basketball, football, badminton, etc. •Sedentary lifestyle and hydration warning. •Sleep monitor. •Exercises to improve breathing. Screen: 1.83 inches, 240x284 px Battery: 230 mAh Approximate battery life: up to 5 days. Standby time: up to 10 days. Supported systems: Android 5.0+ and iOS 9.0+ Bluetooth: 5.1 Chip: RTL8763EWE Sealing: IP67: Do not use in the shower or bathe with it, do not submerge it, or expose it to steam, hot water, or condensation. ABS, metal alloy, silicone. For the smartwatch to work, you need to download a free app for synchronization. To do this: • Scan the QR code included in the instruction manual and download the app. •You can also download the “DaFit” app directly from the Google Play Store (Android) or App Store (iOS). •Once downloaded and installed, open it and accept all requested permissions; sync the smartwatch with your mobile phone via Bluetooth using the app.