1.78 inch AMOLED Display
Customize Watch Faces
Bluetooth Version 5.1 / NFC
Heart Rate and Blood Pressure Monitor
12 Multi-Sport Modes
Design And Build Quality
Unlike Haylou RS3 with a round body, The Haylou RS4 smartwatch has a square design that looks very clean and elegant in black suitable for both men and women and features a smooth 2D curved glass in a metal frame with a brushed finish, giving it the look of an expensive watch, and it really is, And it has one button that turns on-off and the menu. Overall, the body is slim and light and made of high-quality aluminum alloy which makes it lightweight at just 48.6 grams and therefore comfortable on the wrist.
The screen in Haylou RS4 Smartwatch is my favorite type and one of the strengths of this smartwatch, it has been upgraded from a normal TFT panel to an AMOLED panel with 1.78 inches and 2.5D curved to display better content and details, and because it has a resolution of 320*385 pixels with a high refresh rate. This is what makes it one of the best screens in a budget smartwatch in terms of size and resolution, even the sharpness of colors and brightness are so good, especially when you wear them in the sunlight you won’t be alarmed by them.
Haylou RS4 Watch faces
If you are tired of the system default dial background, Haylou RS4 Smartwatch has 5 pre-installed watch faces, you can switch between them easily by long pressing on the home screen or via the Haylou Fun app for more watch faces with over 40 online watch faces are available for download with customization capabilities for a variety of colors, retro, analog, 3D, and digital faces or your own photos as a watch face background or any wallpaper. And with the wrist-raised feature to wake up the screen, that would be great.
With IP68 waterproof in Haylou RS4 Smartwatch, It means you can wear it while washing hands or on rainy days, although the watch is not approved for swimming but is good for wearing for activities, so, I do not recommend swimming or exposing it to hot water or saltwater to avoid any harm Long or short term, however, if it’s exposed to water in any way, I prefer to dry the watch after immersing it in water and before operating it so that it stays with you for as long as possible.
Under The Hood
When it comes to performance, Haylou RS4 Smartwatch adopts the built-in chip for faster response speed and faster data processing, For your health, this device has a Low-power dynamic optical heart rate sensor, so this wearable device manages your motion every moment and takes good care of you throughout the day.
Also, has Bluetooth 5.1 for more fast and stable transmission and reception of the signal. And this version is compatible with Android 6.0 and later or iOS 11.0 and above so that the connection is through the Haylou Fun app. In mainland China, the NFC sensor of RS4 can support Alipay scan code payments. However, the global NFC function may only be able to unlock the smart lock.
Haylou RS4 Health & Fitness Functions
The Haylou RS4 Smartwatch is equipped with 12 multi-sports modes to suit any of your needs, including Fast walking, Climbing, Spinning, Yoga, Indoor Running, Gymnastics, Basketball, Football, Rowing, Cycling.
Apart from the sports features, RS4 built-in four optical heart rate sensors, with a professional intelligent heart rate algorithm, you can monitor your heart rate in real-time to check whether it’s beating normally or not and monitor sleep to measure your total light sleep, deep sleep, and wake time to provide you with an analysis of your sleep patterns, monitor blood pressure and measure oxygen levels in the blood in real-time to improve for the ability of the cardiovascular system to prevent the low level of oxygen in the blood that causes discomfort to a person’s body.
Although it has a good sensor that is more accurate than other sensors, this does not mean that the measurements provided by this smartwatch are completely accurate, as most of them are largely unreliable because it’s not a medical instrument, but it makes you very aware of your health and physical performance. unfortunately, this is often the case with watches in this price range.
Haylou Fun App For Haylou RS4 Smartwatch
Haylou RS4 Smartwatch is compatible with the Haylou Fun app for Android and iOS to help you set up and use the watch more efficiently. Unfortunately, it is not the best and does not compare with Samsung / Amazfit or Huawei apps neither in terms of appearance or even language, except that it contains the basic functions that fit this watch with a rather smooth performance.
After logging into the application and selecting the RS4 device, the watch is connected to the application, and then we can select our profile (gender, age, weight, height) in order to make the correct measurements, and on the main screen, You can take advantage of some features, stats, and functions without any additional equipment, such as steps taken, sleep hours, heart rate measurements that you have taken, and all this is done by automatically integrating watch data on the home screen with the ability to view it on a daily or monthly basis. Also set exercise goals and encourage yourself to complete your exercise amount each day through a simple and easy-to-understand operating interface.
Haylou RS4 Battery Life & Charging Time
In the end, The battery size on the Haylou RS4 is something that is considered somewhat positive, as you get 230 mAh which gives you up to 15 days of battery life. but this is done with the reduced operation of the heart monitor, turning off notifications, and other features. In any case, RS4 guarantees us at least 7 days for heavy use with heart rate monitoring and notifications turned on, and it will charge through the magnetic charger in about 2 hours.