HAYLOU RS4 Plus Smart Sports Watch: AMOLED Display, 10-Day Battery & IP68 Waterproof

The HAYLOU RS4 Plus is a feature-rich smart sports watch designed to provide detailed fitness tracking and health monitoring. It connects seamlessly to your smartphone via Bluetooth 5.1, syncing your activity data to the dedicated Haylou Fun app for analysis. With an impressive suite of 105 pre-loaded workout modes, it caters to a wide range of athletic pursuits, from running and cycling to more specialised gym exercises. The device is built with an IP68 waterproof rating, meaning it is protected against dust and can withstand immersion in water under specified conditions, making it a reliable companion for swimming and training in all weather. Its key practical strength lies in the combination of a vibrant 1.78-inch AMOLED screen and a long-lasting 230mAh battery that delivers up to approximately 10 days of use on a single charge, even with 24-hour heart rate monitoring enabled.

Features and Construction

The HAYLOU RS4 Plus integrates several key technologies into a compact and wearable form factor. Its construction prioritises functionality for active users, with a design that accommodates continuous health sensor operation and robust connectivity.

Material and Build

The watch's construction enables its stated IP68 waterproof rating, which certifies it as dust-tight and protected against continuous immersion in water. This allows for worry-free use during intense workouts, swimming sessions, or in rainy conditions. While the specific materials for the case and strap are not detailed in the source, the practical outcome is a device built to withstand the demands of sports and daily wear. The included 20mm strap is designed to be interchangeable, offering potential for personalisation, and contributes to the total device weight of 57.6 grams.

Size and Practical Fit

With case dimensions of 45.2mm in width, 37.2mm in height, and a 10.4mm thickness, the RS4 Plus presents a balanced profile on the wrist. The 20mm strap width is a common standard, ensuring a secure fit and compatibility with a wide range of aftermarket straps. A total weight of 57.6 grams, including the strap, helps maintain comfort during extended wear, whether for all-day health tracking or during long exercise sessions. This sizing makes it suitable for a variety of wrist sizes without being overly bulky.

Uses and Placement

This device is positioned as a versatile tool for monitoring fitness and wellbeing, bridging the gap between basic activity tracking and more advanced health metrics. Its compatibility with both Android and iOS platforms broadens its user base.

Event or Professional Use

For dedicated athletes or fitness enthusiasts, the 105 specific workout modes allow for precise tracking of different activities, providing tailored data for performance analysis. The integration of a heart rate sensor, motion sensor, and SpO2 (blood oxygen) sensor enables comprehensive monitoring of key physiological metrics during training and recovery. The IP68 rating ensures the device remains operational during triathlons, open-water swims, or trail runs in adverse weather, where other gadgets might fail.

Everyday Home Use

Beyond structured exercise, the watch serves as a daily health companion. The 24/7 heart rate monitoring feature provides ongoing insight into resting heart rate and general cardiovascular trends. The long battery life of around 10 days minimises daily maintenance, making it convenient for continuous wear. Syncing data to the Haylou Fun app allows users to review their sleep patterns, daily activity levels, and SpO2 readings over time, supporting a general awareness of personal wellbeing.

Benefits and Buying Value

The HAYLOU RS4 Plus offers a specific set of features centred on extended battery life, clear display technology, and robust construction, providing practical value for users seeking reliable fitness tracking.

Reuse and Low Maintenance

The core value in reuse comes from the device's durable IP68-rated construction and long battery life. The waterproof design means it can be worn consistently without needing removal for showers, swimming, or in the rain, increasing its utility. A 10-day battery cycle significantly reduces charging frequency compared to smartwatches requiring daily power, enhancing convenience and ensuring the device is more consistently available for tracking.

Why Choose This Product

Choosing the HAYLOU RS4 Plus is supported by its combination of a high-contrast AMOLED display, extensive battery life, and comprehensive sensor suite at its stated specifications. The 1.78-inch screen offers clear readability in various lighting conditions for at-a-glance checking of stats. The inclusion of SpO2 monitoring alongside standard heart rate tracking provides a broader health dataset. For users whose priority is a sports watch that balances detailed activity tracking with minimal charging interruption and resilience against water exposure, this model presents a focused set of capabilities.