HAYLOU RS4 Plus Smartwatch: AMOLED Display, 105 Sports Modes, and IP68 Waterproof

The HAYLOU RS4 Plus is a feature-focused Bluetooth sports watch designed for active users who require detailed fitness and health insights. It combines a vivid 1.78-inch AMOLED display with an extensive suite of over 100 workout tracking modes, making it a versatile companion for various training regimes. Beyond exercise, it provides 24/7 monitoring of key health metrics like heart rate, sleep patterns, and blood oxygen saturation (SpO2). Its practical design is underscored by a 10-day battery life and an IP68 waterproof rating, ensuring it keeps up with daily wear and intense workout sessions without frequent charging concerns.

Features and Construction

The RS4 Plus is built around a core set of sensors and a high-quality display housed in a compact, wearable form factor. Its construction prioritises clarity for data viewing and resilience for active use.

Material and Build

The watch's durability for sports use is supported by its IP68 waterproof rating, which certifies protection against dust ingress and sustained immersion in water under specific conditions. This makes it suitable for handwashing, sweating during exercise, and exposure to rain. The 20mm strap is user-replaceable, allowing for potential customisation. The overall build, weighing 57.6g including the strap, is designed to be worn comfortably throughout the day and night for continuous health tracking.

Size and Practical Fit

With dial dimensions of 45.2mm in width, 37.2mm in height, and a 10.4mm thickness, the RS4 Plus presents a balanced size on the wrist. The 20mm strap width is a common standard, contributing to a secure and adjustable fit. The total weight of 57.6g ensures it remains lightweight during prolonged wear, whether for sleep monitoring or long training sessions. The device is designed to operate within an ambient temperature range of 0°C to 45°C.

Uses and Placement

This smartwatch serves dual purposes: as a dedicated sports tool and a daily health monitor. Its functionality is accessed through its physical interface and synced to a smartphone app for detailed analysis.

Event or Professional Use

The 105 built-in workout modes cater to a wide spectrum of athletic activities, from running and cycling to more niche sports, allowing for tailored tracking. The heart rate sensor provides real-time feedback during exercise, while the motion sensor captures pace and distance. Post-workout, data syncs via Bluetooth 5.1 to the Haylou Fun app, where users can review performance trends, sleep quality analysis from the night before, and historical SpO2 readings.

Everyday Home Use

Outside of dedicated exercise, the watch functions as a comprehensive health tracker. The 24/7 heart rate monitoring and sleep tracking provide a baseline of daily wellbeing. The always-on display capability of the AMOLED screen allows for quick glances at the time, notifications, or health stats without raising the wrist. The long 10-day battery life reduces charging frequency, supporting uninterrupted daily and nightly wear.

Benefits and Buying Value

The RS4 Plus offers value through its combination of a premium display, extensive tracking, and practical durability, all within a single device that requires minimal daily maintenance.

Reuse and Low Maintenance

The core value lies in the device's ongoing utility. The IP68 rating reduces worry about damage from sweat or accidental splashes, extending its usable life in active scenarios. The long battery life minimises downtime for charging, ensuring the health and activity tracking remains consistent. The included charging cable provides a simple method to replenish the 230mAh battery from a standard USB port.

Why Choose This Product

Choosing the HAYLOU RS4 Plus is a decision for a data-rich, low-hassle fitness experience. It stands out for its high-resolution AMOLED display, which offers superior clarity compared to standard LCD screens, and its exceptionally broad selection of 105 sports modes. The package is complete, containing the watch, strap, charger, and manual, ready for immediate use with Android or iOS smartphones. It delivers focused athletic and health tracking without the complexity or subscription fees often associated with broader smartwatch ecosystems.