HAYLOU RS4 Plus Smart Watch: AMOLED Display, 105 Sports Modes and IP68 Waterproofing

The HAYLOU RS4 Plus smartwatch is designed as a practical health and fitness companion, built around a vivid 1.78-inch AMOLED screen. This display provides a crisp 368 by 448 pixel resolution, making activity data and notifications easy to read at a glance. The watch consolidates health monitoring through integrated sensors, tracking heart rate and blood oxygen saturation (SpO₂) around the clock. Its compatibility extends to smartphones running Android 6.0 or iOS 11.0 and above, connecting via efficient Bluetooth 5.1 to the dedicated Haylou Fun app for data synchronisation and deeper insights. With a focus on durability and longevity, it features an IP68 resistance rating and a battery that supports up to ten days of typical use.

Features and Construction

The RS4 Plus combines a compact form factor with a suite of tracking features aimed at fitness enthusiasts and everyday users. Its construction is centred on delivering the specified sensor data and workout support in a wearable that is resistant to everyday elements.

Material and Build

The watch is assembled into a case measuring 45.2mm in width, 37.2mm in height, and 10.4mm in thickness. This housing contains the AMOLED display and internal sensors. A key aspect of its build is the IP68 rating, which certifies a defined level of protection against dust ingress and water immersion, making it suitable for handwashing, sweating, and rain. The attached strap is 20mm wide, contributing to a total on-wrist weight of 57.6 grams for a balanced feel during wear.

Size and Practical Fit

With its 45.2mm by 37.2mm case dimensions, the watch presents a mid-size profile on the wrist. The 10.4mm thickness and 57.6-gram overall weight are designed for all-day comfort without being obtrusive. The 20mm strap width offers a secure fit and allows for potential replacement with third-party bands of the same size, should users wish to personalise the look. These physical specifications define its wearability for a range of wrist sizes during both exercise and daily activities.

Uses and Placement

This device serves multiple roles, from a dedicated sports tracker to a general wellness monitor. Its design and feature set allow it to transition seamlessly between different environments and use cases.

Event or Professional Use

For athletic training or structured exercise, the watch supports 105 distinct workout modes. This wide selection enables detailed tracking for various sports and activities, from running and cycling to more niche disciplines. The continuous 24-hour heart rate and SpO₂ monitoring provide athletes with ongoing data on their physical state, which can be reviewed post-session in the Haylou Fun app. The IP68 rating ensures the device can withstand sweat and accidental splashes during intense sessions without concern.

Everyday Home Use

Outside of dedicated workouts, the watch functions as a daily health monitor and smart companion. The long battery life, quoted at approximately 10 days with constant heart rate monitoring active, reduces the frequency of charging. Users can receive smartphone notifications on the bright AMOLED display and track general activity levels throughout their routine. Its operating temperature range of 0°C to 45°C covers typical indoor and outdoor conditions encountered in daily life.

Benefits and Buying Value

The value of the RS4 Plus lies in its combination of a high-quality display, comprehensive health tracking, and resilient construction. It is positioned as a tool for gaining insights into personal fitness and wellbeing over the long term.

Reuse and Low Maintenance

The product is designed for repeated, daily use over extended periods. The robust IP68 build reduces worries about damage from moisture, promoting its use in various environments. The 10-day battery life minimises downtime for charging, supporting consistent wear and data collection. The strap is user-replaceable, offering a simple way to refresh the watch's appearance or replace a worn band, thereby extending the practical life of the core device.

Why Choose This Product

This watch is suited for users seeking a balance of clear visual feedback, detailed activity tracking, and everyday durability. The AMOLED screen is a tangible differentiator for readability compared to standard LCDs. The provision of 105 sports modes and 24/7 health sensors offers a data-rich experience for those looking to analyse their fitness. When compared generically to basic trackers, its value is in this specific combination of a premium display type, a high number of tracked exercise modes, and a rated waterproof construction, all within a defined compact form factor.