TK25 Smartwatch: • 1.36-inch high-resolution IPS touchscreen with automatic wake-up when you turn your wrist. •Bluetooth Calls: Incoming call notification, Bluetooth dialer; you can answer, reject, and talk from the watch itself. •Push notifications from apps such as WhatsApp, Facebook, Instagram, SMS, etc. •Stopwatch, timer, Bluetooth music control (playback on smartwatch), alarm, remote smartphone camera shutter, smartwatch search (from App), smartphone search. •Multiple dials of various styles and interchangeable. ( App Required). Customizable background. •Languages available on the smartwatch: English, Japanese, Korean, German, Russian, Spanish, Italian, French, Portuguese, Swedish, Chinese, Turkish, and Polish. •Includes magnetic USB charging cable. Sports and health functions: • Heart rate monitor with 24-hour mode, ECG function, noninvasive blood glucose measurement, blood composition measurement (uric acid and lipids), blood oxygen, and blood pressure. Remote care for family and friends. •Body temperature monitor (thermometer); body fat measurement; women's health. •Pedometer with step, distance and calorie measurement. •A wide variety of sports modes, such as: walking, running, football, tennis, basketball, cycling, etc. •Sedentary lifestyle reminder, medication reminder, and water drinking reminder. •Sleep monitor. System Requirements: Android 4.4 / iOS 9.0 or higher CPU: Realtek 8762D 1.36-inch 360x360 TFT IPS touchscreen Bluetooth: 5.1 Lithium polymer battery: 250mAh Vibration: Yes Sealing: IP67, do not expose to condensation, bathing, sauna, etc. Electrocardiogram chip: VC8808 Gravity sensor: ST8321 Heart rate sensor: VP60A2 heart rate (dynamic and accurate continuous heart rate collection with dual PD) Battery life: 3 to 5 days, typically depending on usage. Standby time: +20 days ABS, metal alloy, silicone, 316 stainless steel. 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 “Deep Fit” 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. •Images shown in photos may contain menu screens and wallpapers that differ from the final product due to future updates. In no case will they lose announced functions.