NOTE: 1. This watch does NOT have the Blood Pressure Monitor feature. 2. The measurement results of the watch are For Reference Only, they CANNOT be taken as the basis for the medical diagnosis. 3. The watch band length is adjustable from 6.7 inches to 9.6 inches. 4. The thickness of the watch is around 13-14 mm. 5. The watch is not suitable for use while diving, swimming in the sea, or in a sauna. It's suitable for use in swimming pools, showers (cold water) and shallows METAL FRAME & BUTTONS/TOUCH SCREEN HD COLOR DISPLAY: 1.8-inch large touch screen provides excellent high-definition color image quality. Switch to 120+ different screen styles with one touch, supporting upload custom pictures. Flip your wrist to automatically wake up the screen, 5 levels of the screen brightness can be set 100+ SPORTS MODES FITNESS TRACKER: The fitness smart watch can accurately record your steps, calories, distance, heart rate and SpO2 and detect your health status and real-time activity status. 100+ sports modes to choose such as walking, running, cycling, hiking, yoga and more. Gives you a detailed look at activities throughout the day. Helps you analyze, improve and enhance your athletic performance ALEXA BUILT-IN MULTIFUNCTIONAL SMART WATCH: With this Alexa built-in multifunctional smart watch, you can answer/ make calls on it when it’s connected to your phone via Bluetooth. It has functions like call/message notification previews, period reminder, sedentary and drink water reminder, music control, set alarm, find phone, check the weather and so on. Bluetooth V5.3 supported. Download the "VeryFit" app from the App Store/Google play, connect to your watch via Bluetooth, and enjoy the convenience of Alexa on your smartwatch LARGE BATTERY CAPACITY & BATTERY LIFE: The 300 mAh large battery capacity and low power consumption design offers longer endurance. Within 2.5 hours fast charging, up to 7 days of daily usage (Varies depending on actual use and other factors). This military smart watch is compatible with Android and iOS phone, but not with PC, iPad or tablet WATER RESISTANT & DUST PROOF: This sport watch is perfect for outdoor enthusiasts. It is IP68 Waterproof standard and dust resistant. You can swim, surf, sail, or engage in other vigorous activities with this fitness tracker. One click to drain the water out of the smart watch