HAYLOU RS4 Plus Smart Sports Watch with 1.78" AMOLED Display and 105 Workout Modes

The HAYLOU RS4 Plus represents a feature-packed smart sports watch designed for fitness enthusiasts seeking comprehensive tracking capabilities alongside everyday smartwatch functionality. With its combination of advanced sensors, including continuous heart rate monitoring and blood oxygen saturation (SpO2) tracking, this device provides detailed insights into your health metrics throughout both day and night. The inclusion of 105 distinct workout modes ensures that whether you're running, cycling, swimming, or engaging in specialised fitness activities, your performance data is captured with precision. Weighing just 57.6g including the strap, this lightweight timepiece offers extended wear comfort while delivering approximately 10 days of battery life with all monitoring features active.

Features and Construction

The HAYLOU RS4 Plus combines advanced sensor technology with practical design elements to create a versatile fitness tracking companion. From its high-resolution AMOLED display to its comprehensive suite of monitoring capabilities, every aspect serves the purpose of delivering actionable health and fitness data.

Material and Build

The watch features a compact case measuring 45.2mm x 37.2mm x 10.4mm that houses its sophisticated sensor array and display technology. With an IP68 waterproof rating, the device offers protection against dust ingress and water immersion, making it suitable for swimming activities and resilient in various weather conditions. The 20mm strap width allows for compatibility with standard watch bands, providing flexibility for personalisation based on activity type or aesthetic preference.

Size and Practical Fit

Weighing 57.6g including the strap, the HAYLOU RS4 Plus maintains a lightweight profile that ensures comfort during extended wear, whether during intense workouts or throughout daily activities. The 1.78-inch AMOLED display with 368x448 resolution provides clear visibility for checking fitness metrics, notifications, and watch functions even in varying lighting conditions. Operating within a temperature range of 0°C to 45°C, the watch maintains functionality across most environmental conditions encountered during typical use.

Uses and Placement

This smart sports watch serves dual purposes as both a dedicated fitness tracker and everyday timepiece, with functionality tailored to support various lifestyles and activity levels. Its comprehensive feature set addresses needs ranging from casual fitness monitoring to detailed performance analysis for serious athletes.

Event or Professional Use

With 105 distinct workout modes, the HAYLOU RS4 Plus provides specialised tracking for a wide range of athletic disciplines, from running and cycling to swimming and strength training. The continuous 24-hour heart rate monitoring offers valuable insights into cardiovascular health and recovery patterns, while the SpO2 sensor tracks blood oxygen saturation levels that can indicate acclimatisation to altitude or recovery status. Bluetooth 5.1 connectivity ensures reliable data synchronisation with the Haylou Fun app on compatible smartphones running Android 6.0+ or iOS 11.0+.

Everyday Home Use

Beyond fitness tracking, the watch serves as a practical everyday accessory with smart notification capabilities and extended battery life that minimises frequent charging. The approximately 10-day battery life with continuous heart rate monitoring enabled reduces maintenance frequency compared to many daily-charge smartwatches. Available in black, champagne, or silver colour options, the watch offers aesthetic versatility to match personal style preferences while maintaining its core functionality.

Benefits and Buying Value

The HAYLOU RS4 Plus delivers practical value through its combination of comprehensive tracking capabilities, extended battery life, and durable construction suited to active lifestyles. Each feature contributes to a cohesive user experience focused on providing actionable health and fitness insights.

Reuse and Low Maintenance

The 230mAh battery capacity supports approximately 10 days of use with continuous heart rate monitoring enabled, significantly reducing charging frequency compared to smartwatches requiring daily charging. The IP68 waterproof rating ensures the device can withstand exposure to water during swimming, showering, or rainy conditions without compromising functionality. Standard 20mm strap compatibility allows for easy replacement or customisation using widely available third-party bands.

Why Choose This Product

The HAYLOU RS4 Plus stands out through its combination of 105 workout modes for detailed activity tracking, continuous health monitoring capabilities, and extended battery life in a lightweight package. The 1.78-inch AMOLED display delivers superior visual clarity compared to many LCD alternatives, while Bluetooth 5.1 provides efficient data synchronisation with compatible smartphones. For users seeking comprehensive fitness tracking without the constant need for recharging, this watch offers a balanced set of features at a practical weight of 57.6g.