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This HAYLOU RS4 Plus smart sports watch combines a 1.78-inch AMOLED screen with comprehensive health and activity tracking across 105 different sports modes. Designed for active lifestyles, it monitors sleep patterns, heart rate, and blood oxygen levels continuously. With an IP68 waterproof rating, it withstands immersion and is suitable for swimming. The watch connects via Bluetooth 5.1 to smartphones running Android 6.0+ or iOS 11.0+, syncing data to the Haylou Fun app. Its 230mAh battery delivers up to 10 days of use with heart rate monitoring active, reducing charging frequency.
The watch features a high-visibility 1.78-inch AMOLED display with a resolution of 368x448 pixels, ensuring sharp graphics and easy readability in various lighting conditions.
The watch is equipped with multiple sensors to monitor key health metrics and supports an extensive range of workout modes for detailed activity analysis.
Bluetooth connectivity enables smartphone integration, while the battery is designed to support extended use between charges, minimising daily maintenance.
The combination of extensive tracking, durable construction, and long battery life makes this watch a practical tool for monitoring fitness and daily activity.
HAYLOU RS4 Plus Smart Bluetooth Sports Watch with 1.78" AMOLED Display, 105 Workout Modes, IP68 Waterproof, 10-Day Battery Life, Sleep and Heart Rate Monitoring in Black, Champagne, or Silver
£82.00
Sale price
£82.00
Regular price
HAYLOU RS4 Plus Smart Sports Watch with AMOLED Display and IP68 Waterproof Rating

Display and Physical Design

Screen Quality and Build
The AMOLED technology provides vibrant colours and deep blacks on the 1.78-inch screen, which is housed in a compact case measuring 45.2mm by 37.2mm by 10.4mm. The total weight, including the strap, is 57.6g, offering a balanced feel on the wrist. The 20mm strap width provides a standard fit compatible with many third-party replacement straps if desired. The construction supports the IP68 waterproof standard, meaning it is protected against dust ingress and can withstand immersion in water.Size and Wearability
With case dimensions of 45.2mm x 37.2mm x 10.4mm, the watch presents a modern, mid-size profile suitable for most wrist sizes. The included strap is 20mm wide, a common size that offers stability and comfort during movement. The total weight of 57.6g (including strap) contributes to a lightweight wearing experience suitable for all-day use and sleep tracking.Health and Activity Tracking

Sensor Technology and Monitoring
Integrated sensors include a heart rate monitor, a motion sensor, and a blood oxygen (SpO2) sensor. These allow for 24/7 heart rate tracking, sleep stage analysis, and periodic blood oxygen measurements. The data collected provides insights into daily activity levels, rest quality, and overall wellness trends when reviewed via the connected Haylou Fun app.Workout Modes and Sports Support
A total of 105 pre-configured sports modes are available, covering activities from running and cycling to swimming and various gym workouts. This wide selection allows users to track specific exercises with relevant metrics. The IP68 rating ensures the watch can be used for swimming and other water-based activities without concern.Connectivity and Battery Performance

Bluetooth and Smartphone Integration
Battery Life and Charging Powered by a 230mAh battery, the watch offers approximately 10 days of usage on a single charge when the 24-hour heart rate monitoring feature is active. Charging is accomplished via the included proprietary charging cable. The operating temperature range is specified as 0°C to 45°C, ensuring reliable performance in most environmental conditions.Practical Use and Value
