HAYLOU RS4 Plus Smart Sports Watch: AMOLED Display with 10-Day Battery and IP68 Rating

The HAYLOU RS4 Plus is a feature-rich smartwatch designed for fitness enthusiasts who require detailed health metrics and reliable performance. Its core strength lies in combining a high-quality 1.78-inch AMOLED display with long battery life and robust construction. This watch tracks essential vitals including 24/7 heart rate, blood oxygen saturation (SpO2), and sleep patterns, supporting over a hundred specific workout modes. With Bluetooth 5.1 connectivity to the Haylou Fun app on iOS and Android, it serves as a comprehensive hub for your fitness data, all housed in a compact, IP68-rated case suitable for daily wear and intense training sessions.

Features and Construction

The RS4 Plus is built around a clear, vibrant display and a suite of sensors, packaged for durability and extended use. Its design prioritises legibility and comfort during activity, with a case size that balances screen presence and a lightweight fit.

Material and Build

The watch case is constructed from materials that meet the IP68 standard for water and dust resistance, allowing it to withstand immersion and making it suitable for swimming and training in all conditions. The included strap, which is 20mm wide, is made from a standard fitness watch material designed for secure, comfortable wear over long periods, contributing to the total weight of 57.6 grams.

Size and Practical Fit

With compact case dimensions of 45.2 mm in width, 37.2 mm in height, and a thickness of 10.4 mm, the RS4 Plus offers a substantial screen without a bulky profile. The 20mm strap width ensures compatibility with a wide range of aftermarket straps if desired. This sizing makes it a practical choice for users with average to smaller wrists who still want a clear, readable display for checking notifications and workout stats on the go.

Uses and Placement

This smartwatch is versatile, serving as both a dedicated sports companion and a general health tracker for everyday life. Its multiple sensors and modes cater to structured training while also providing valuable insights into daily wellness.

Event or Professional Use

For athletes and regular gym-goers, the 105 built-in workout modes allow for precise tracking across disciplines from running and cycling to yoga and strength training. The IP68 rating means it can be worn confidently for swimming or in rainy conditions. The motion and heart rate sensors work together to provide accurate calorie burn and effort zone data during these activities, which can be reviewed in detail on the Haylou Fun app post-workout.

Everyday Home Use

Outside of dedicated exercise, the watch functions as a daily health monitor. The 24-hour heart rate tracking and SpO2 sensor can provide insights into overall cardiovascular fitness and blood oxygen levels. Sleep monitoring helps users understand their sleep patterns and duration. The long battery life of up to 10 days reduces the frequency of charges, making it convenient for constant wear, while Bluetooth notifications keep you connected without needing to check your phone constantly.

Benefits and Buying Value

The RS4 Plus offers value through its combination of a premium display, comprehensive tracking, and durable build at a practical size. It avoids frequent charging and provides detailed data for those looking to improve their fitness or general health awareness.

Reuse and Low Maintenance

The robust IP68 construction means the watch can handle daily exposure to sweat, rain, and dust without requiring special care, beyond ensuring the charging port is dry before connecting the cable. The long battery life minimises charging cycles, contributing to convenience and potential long-term battery health. The device is designed for continuous reuse across various activities and environments.

Why Choose This Product

Choose the HAYLOU RS4 Plus if you seek a smartwatch with a sharp AMOLED display for clear readability, a wide array of over 100 sports modes, and the durability of an IP68 rating for active use. Its standout 10-day battery life with continuous monitoring reduces downtime, and the comprehensive health tracking suite covers heart rate, SpO2, and sleep. It represents a practical tool for athletes and health-conscious users who need detailed metrics without excessive bulk or daily charging.