Review on Feifuns Smart Watch: Blood Pressure & Blood Oxygen Fitness Tracker with Heart Rate Monitor - Large Full Touch Screen Pedometer Watch for Android & iOS - Men & Women by Joseph Marshall

I am considering returning this watch a second time as a button is stuck. I love the features but hate using the app solely because of this design flaw. At first I was hoping that the problem would only affect the first device. However, the replacement watch sent by Revain has the same problem. The button stuck a week after the first hours. It stuck for the first 8 hours for the second hours. 😔I bought this watch because I wanted a waterproof smartwatch that tracks health data (blood pressure, blood oxygen, heart rate), sleep patterns and fitness data (steps and calories burned). This watch also offers all these functions. The watch is attractive, fairly durable, lightweight, and has a large screen. Easily attach a durable watch strap. It's also easy to install and set up the watch with the app. You can monitor important health indicators. However, it does not allow you to track them automatically. You need to measure your blood pressure and blood oxygen manually through the app or on the watch. It is possible to track your heart rate continuously throughout the day. The app is user-friendly and makes setting the clock easy. You can view graphs of your vital signs (steps, sleep patterns, blood pressure, blood oxygen and heart rate) in a snapshot. The watch is waterproof, has a touchscreen, and is fairly accurate at tracking vital signs and steps. You can receive calls, receive notifications from applications (social networks - Instagram, Twitter, Facebook, WhatsApp, etc.); Preview text messages and emails and activate the camera to take a selfie. You can change your clock background by downloading themes with the app that show the dates you want to see in the image. You can adjust the clock brightness and the size of text and numbers. The button on the right that lets you illuminate the watch face so you can see the time and use the touchscreen gets stuck in the middle. This is a terrible design flaw. Although you can click the button at the top and bottom, nothing happens. In this case, if you want to access the features, you must use the app. Overall decent quality and features but poor design implementation. This watch would be ideal if you could use it to schedule automatic monitoring of all key health indicators. (preferably simultaneously or sequentially) or if he automatically controls them periodically, while solving the problem of sticking the button.