Technical sheet

Haylou RS4 Plus smartwatch

Name: Haylou RS4 Plus smartwatch
Brand: Haylou
SKU: 143490025
Price: 39.49 EUR
Availability: InStock
Rating: 4 (1 reviews)

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Features of Haylou RS4 Plus

Product description of Haylou RS4 Plus smartwatch

Description summary

Elevate your life with the HAYLOU RS4 Plus smartwatch. Featuring a stunning 1.78-inch AMOLED Retina display with a 60Hz refresh rate, it offers vibrant visuals and fluid interactions. Its sleek metallic bezel and magnetic strap provide a premium, comfortable fit. Proactively monitor your health with all-day heart rate and SpO2 tracking, in-depth sleep analysis, stress monitoring, and female health tracking. Achieve your fitness goals with 105 workout modes and conquer any environment with IP68 water and dust resistance. Enjoy up to 10 days of battery life, customize your look with over 100 watch faces, and stay connected with smart notifications, weather, music control, and more

Elevate your daily routine with the HAYLOU RS4 Plus, a masterfully engineered smartwatch that seamlessly blends sophisticated aesthetics with powerful, intelligent functionality. Designed for the modern adult who demands both style and substance, this timepiece is your ultimate companion for health, fitness, and connected living.

Experience unparalleled visual clarity on the stunning 1.78-inch AMOLED Retina display. With a crisp 368x448 pixel resolution and a buttery-smooth 60Hz refresh rate, every interaction is fluid, vibrant, and incredibly detailed. Whether you´re checking your stats under bright sunlight or glancing at the time in a dim room, the display delivers an exceptional, immersive viewing experience. The elegant metallic bezel frames the screen perfectly, offering a premium look and feel that complements any attire, from workout gear to business casual. A unique and stylish magnetic strap ensures a perfect, comfortable fit for all-day wear with effortless application and removal.

Take proactive control of your well-being with a comprehensive suite of advanced health monitoring features. The HAYLOU RS4 Plus is equipped for intelligent, all-day wrist heart rate monitoring, providing you with real-time insights and alerting you to any potential irregularities. Go a step further with SpO2 tracking to monitor your blood oxygen saturation levels, a crucial indicator of your overall health. Understand your rest and recovery patterns with in-depth sleep analysis that breaks down your deep sleep, light sleep, and REM stages. The watch also includes stress monitoring with guided breathing exercises to help you find moments of calm throughout your busy day, as well as a dedicated mode for female health and cycle tracking.

Unleash your inner athlete and achieve your fitness goals with support for over 105 diverse workout modes. From running and cycling to yoga and indoor sports, the RS4 Plus accurately tracks your performance, recording essential data like steps, distance, calories burned, and workout duration. Its IP68 waterproof and dustproof rating means you can push your limits without hesitation, whether you´re sweating through an intense gym session or caught in the rain on a run.

Stay powered and connected for longer. The impressive battery life frees you from the constant need to recharge, lasting up to 10 days with typical use. Customize your look to match your mood or outfit with over 100 stylish online watch faces, or use your own photo for a truly personal touch. Seamlessly receive call reminders, message notifications, and app alerts directly on your wrist, ensuring you never miss what matters. Other smart features include weather forecasts, music control, and a "find my phone" function, all designed to make your life easier and more efficient.

Main Features
* Large 1.78-inch AMOLED HD Display
* Innovative Magnetic Strap Design
* 105 Diverse Sports and Workout Modes
* Comprehensive Health Suite: SpO2, Heart Rate, Sleep & Stress Monitoring
* Extended 10-Day Battery Life
* Durable IP68 Waterproof and Dustproof Rating
* Over 100 Customizable Online Watch Faces

Technical Specifications
* Display Type: AMOLED
* Screen Size: 1.78 inches
* Resolution: 368x448 pixels
* Refresh Rate: 60Hz
* Sensors: Wrist heart rate sensor, motion sensor, blood oxygen sensor
* Waterproof Rating: IP68
* Bluetooth Version: Bluetooth 5.1
* Battery Capacity: 230mAh
* Typical Usage Battery Life: Approximately 10 days
* Supported Systems: Android 6.0 or higher, iOS 11.0 or higher
* Workout Modes: 105 modes
* Target User: Adult

Specifications

Manual

Technical specifications of Haylou RS4 Plus

Display Type

AMOLED
Screen Size

1.78 inches
Resolution

368x448 px
Bezel Material

Metallic
Case Material

Polymer
Wireless Connectivity

Bluetooth 5.1
Heart Rate

Yes
Accelerometer

Yes
Battery Life

10 days
Water Resistance Rating

IP68
Smart Notifications

Yes
Music Controls

Yes
Dimensions

1.53´´ | 48.4 X 48.4 X 11.5 Mm
Weight

48 Gr (With 2 Straps)
Flash Light

Yes
Color

Black
Features

Wrist heart rate

Features of Haylou RS4 Plus

Color Black

Color

Black

Features Wrist heart rate

Features

Wrist heart rate

Key differentiators

Features a large 1.78-inch high-resolution AMOLED display with a 60Hz refresh rate for fluid visuals.

Offers extensive health monitoring, including continuous heart rate, SpO2, sleep, and stress tracking.

Provides an extended battery life of up to 10 days of typical use.

Submersible water resistance for durability during workouts and daily wear.

Technology in Haylou RS4 Plus smartwatch

Energy rating

Warnings

/ 5

1 Reviews

What our customers are saying about Haylou RS4 Plus smartwatch

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Include AI Generated questions and answers

2026-10-27

Generated by AI and verified

What is the battery life of the Haylou Rs4 Plus Smartwatch?

Answer of Generated by AI and verified

The Haylou Rs4 Plus Smartwatch offers a battery life of up to 10 days on a single charge, allowing for extended use between charges.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

What kind of display does the Haylou Rs4 Plus have?

Answer of Generated by AI and verified

This smartwatch features a 1.78-inch AMOLED display with a 368x448 pixel resolution and a 60Hz refresh rate, providing a clear and fluid visual experience.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

Is the Haylou Rs4 Plus smartwatch water-resistant?

Answer of Generated by AI and verified

Yes, the Haylou Rs4 Plus is rated as submersible, which means it is designed to withstand being underwater.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

Is the Haylou Rs4 Plus Smartwatch a good choice for fitness users?

Answer of Generated by AI and verified

The Haylou Rs4 Plus Smartwatch is well-suited for fitness users with its 105 sports modes and comprehensive health monitoring features, including heart rate and SpO2 tracking.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

Does the Haylou Rs4 Plus monitor heart rate?

Answer of Generated by AI and verified

Yes, the Haylou Rs4 Plus is equipped with a heart rate monitor that provides continuous measurement, allowing you to track your heart rate throughout the day.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

Can the Haylou Rs4 Plus track blood oxygen levels (SpO2)?

Answer of Generated by AI and verified

Yes, this smartwatch includes an SpO2 sensor to monitor your blood oxygen saturation levels, providing a key insight into your overall health.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

What materials are used for the case and strap?

Answer of Generated by AI and verified

The Haylou Rs4 Plus has a case made of polymer with a metallic bezel. It comes with a magnetic strap for a secure and comfortable fit.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

How many sports modes does the Haylou Rs4 Plus support?

Answer of Generated by AI and verified

The Haylou Rs4 Plus supports 105 different sports modes, allowing you to track a wide variety of fitness activities.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

Can I use this smartwatch for sleep tracking?

Answer of Generated by AI and verified

Yes, the Haylou Rs4 Plus offers sleep tracking capabilities, including monitoring different sleep stages to give you a detailed analysis of your sleep quality.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

Does this watch have features for female health tracking?

Answer of Generated by AI and verified

Yes, the Haylou Rs4 Plus includes a female health tracking feature to help monitor menstrual cycles.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

Can I control my phone's music from the Haylou Rs4 Plus?

Answer of Generated by AI and verified

Yes, the smartwatch includes music controls, allowing you to manage music playback on your connected smartphone directly from your wrist.

* Generated by AI based on customer and product data

2026-10-27

Generated by AI and verified

What phones are compatible with the Haylou Rs4 Plus smartwatch?

Answer of Generated by AI and verified

The Haylou Rs4 Plus is compatible with smartphones running Android 6.0 or higher and iOS 11.0 or higher. It connects via Bluetooth 5.1.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What are the main health monitoring features of the Haylou RS4 Plus smartwatch?

Answer of Generated by AI and verified

The Haylou RS4 Plus offers a comprehensive suite of health monitoring tools. It includes continuous heart rate monitoring, SpO2 tracking for blood oxygen saturation, detailed sleep tracking which includes sleep stages, and stress monitoring. It also provides breathing exercises and female health tracking.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What is the battery life of the Haylou RS4 Plus?

Answer of Generated by AI and verified

The Haylou RS4 Plus offers up to 10 days of battery life with typical usage. In basic watch mode, the battery can last up to 28 days.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Is the Haylou RS4 Plus smartwatch water-resistant?

Answer of Generated by AI and verified

It supports use during workouts that involve sweat.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Is the Haylou RS4 Plus smartwatch worth buying for health monitoring?

Answer of Generated by AI and verified

The Haylou RS4 Plus offers comprehensive health monitoring features, including SpO2, heart rate, sleep, and stress tracking, making it a valuable tool for those focused on health and wellness.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What type of display does the Haylou RS4 Plus have?

Answer of Generated by AI and verified

The Haylou RS4 Plus is equipped with a 1.78-inch AMOLED HD display. It has a resolution of 366x448 pixels and a 60Hz refresh rate, offering vibrant colors and smooth animations.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What materials are used to make the Haylou RS4 Plus?

Answer of Generated by AI and verified

This smartwatch features an aluminum alloy case with a metallic bezel and comes with a silicone strap.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Does the Haylou RS4 Plus have a built-in GPS?

Answer of Generated by AI and verified

No, the Haylou RS4 Plus does not have a built-in GPS. For location tracking during activities, it would rely on a connected smartphone's GPS.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

How many workout modes does the Haylou RS4 Plus support?

Answer of Generated by AI and verified

The Haylou RS4 Plus supports 105 different sports modes, allowing you to track a wide variety of physical activities.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What is the battery life of the Haylou RS4 Plus in basic watch mode?

Answer of Generated by AI and verified

The Haylou RS4 Plus can last up to 28 days in basic watch mode, providing extended usage without frequent charging.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Can I receive notifications from my phone on the Haylou RS4 Plus?

Answer of Generated by AI and verified

Yes, the watch supports smart notifications. When connected to your smartphone via Bluetooth 5.1, you can receive alerts for calls, messages, and other app notifications directly on your wrist.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

Can I control music playback with this smartwatch?

Answer of Generated by AI and verified

Yes, the Haylou RS4 Plus includes music controls, allowing you to play, pause, and skip tracks on your connected smartphone without needing to take it out.

* Generated by AI based on customer and product data

2026-09-17

Generated by AI and verified

What devices is the Haylou RS4 Plus compatible with?

Answer of Generated by AI and verified

The Haylou RS4 Plus is compatible with smartphones running Android 6.0 and above, as well as devices running iOS 11.0 and above. It connects via Bluetooth 5.1.

* Generated by AI based on customer and product data

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Frequently bought together

Best sellers

Use cases

Comprehensive Health Monitoring 90% Fit

This smartwatch is an excellent tool for users who want to keep a close eye on their overall health. It offers continuous heart rate tracking, SpO2 monitoring, and detailed sleep analysis, providing valuable insights into daily well-being.

Continuous Heart Rate Monitoring,SpO2 Sensor,Sleep Stages Tracking,Stress Monitoring

Multi-Sport Fitness Tracking 90% Fit

With 105 different sports modes, this watch is perfect for fitness users who engage in a wide variety of activities. It provides the flexibility to track everything from running and cycling to more niche workouts, helping you monitor performance across all your interests.

105 Sports Modes,Accelerometer,Heart Rate Monitor

Daily Connected Living 80% Fit

This watch serves as a great everyday companion, keeping you connected without needing to constantly check your phone. You can receive notifications for calls and messages and even control your music directly from your wrist.

Smart Notifications,Music Controls,10-day Battery Life

Women's Health Tracking 90% Fit

The watch includes a dedicated female health tracking feature, making it a practical and supportive tool for women. This allows for easy monitoring and management of menstrual cycles and other related health insights.

Female Health Tracking,Stress Monitoring,Sleep Tracking

All-Day Wear and Light Water Activities 75% Fit

Designed for continuous use, this watch features a long battery life and is submersible, making it suitable for daily wear, including during showers or swimming. The magnetic strap ensures a comfortable and secure fit throughout the day.

Submersible Water Resistance,10-day Battery Life,Magnetic Strap

Best for

Best for Casual Daily Use

This smartwatch is ideal for everyday wear, offering essential features like smart notifications and music controls directly on your wrist. With a long 10-day battery life, you can wear it for over a week without needing to recharge. It's designed for simplicity and convenience, making it a great first step into connected devices.

Based on: smart_notifications: yes, Music controls: yes, Battery life days: 10 days, Intended use: health, fitness, and connected living

Ideal for Health-Conscious Beginners

This watch provides comprehensive health monitoring features that are easy to understand. It offers continuous heart rate tracking, SpO2 (blood oxygen) monitoring, and detailed sleep tracking. With additional features like stress monitoring and female health tracking, it's a practical choice for gaining valuable insights into your overall well-being.

Based on: heart_rate_monitor: yes, Spo2 sensor: yes, Sleep tracking: yes, Stress monitoring: yes, Female health tracking: yes

Great Value for Multi-Sport Tracking

With 105 different sports modes, this watch can track a wide variety of workouts, from running to yoga. The bright AMOLED display makes it easy to see your stats during any activity, and its submersible water resistance means you don't have to worry about sweat or rain. It's a feature-packed, affordable option for tracking your fitness journey.

Based on: sports_modes_count: 105, Display type: amoled, Water resistance: submersible

Benefits

FunctionalProactively Monitor Your Well-being Around the Clock

Gain deep insights into your health with a full suite of monitoring tools. The watch offers continuous heart rate tracking, blood oxygen (SpO2) monitoring, stress level analysis, and a dedicated mode for female health tracking, empowering you to take proactive control of your well-being.

Heart rate monitor: yes

Heart rate measurement mode: continuous

Spo2 sensor: yes

Stress monitoring: yes

Female health tracking: yes

FunctionalTrack Your Performance Across 105 Different Activities

Whether you're running, cycling, or practicing yoga, this smartwatch supports your fitness journey with 105 workout modes. It accurately records essential data like steps, distance, and calories burned, helping you to achieve your fitness goals.

Sports modes count: 105

Accelerometer: yes

Intended use: health

fitness

and connected living

FunctionalEnjoy Up to 10 Days of Uninterrupted Use

Stay powered for longer and avoid the hassle of frequent charging. The impressive battery life lasts up to 10 days with typical use, freeing you to focus on your activities without constantly worrying about finding a power source.

Battery life days: 10 days

FunctionalView Your Stats on a Vibrant and Smooth AMOLED Display

Experience exceptional visual clarity on the large 1.78-inch AMOLED display. With a crisp 368x448 pixel resolution and a smooth 60Hz refresh rate, every interaction is fluid and detailed, making it easy to check your stats at a glance.

Display type: amoled

Screen size inches: 1.78 inches

Screen resolution: 368x448 px

Refresh rate hz: 60Hz

FunctionalUnderstand Your Rest and Recovery Patterns

Improve your sleep habits by understanding your rest and recovery. The watch provides in-depth sleep analysis that breaks down your deep sleep, light sleep, and REM stages, offering valuable insights to enhance your overall well-being.

Sleep tracking: yes

Sleep stages tracking: yes

Ideal buyer profiles

The Fitness Fanatic

This user is dedicated to their health and fitness journey, tracking workouts and key health metrics daily. They need a device that can keep up with a varied exercise routine and provide detailed data to monitor progress.

With 105 sports modes, this smartwatch can track a wide variety of activities. The continuous heart rate monitor, SpO2 sensor, stress monitoring, and sleep stages tracking provide a holistic view of their health and fitness. The 10-day battery life ensures it's always ready for the next workout.

The Casual User

This individual wants the convenience of a smartwatch for everyday life, including notifications and basic health tracking, without needing professional-grade athletic features. They value ease of use, long battery life, and seamless smartphone integration.

The Haylou Rs4 Plus offers essential smartwatch features like smart notifications and music controls directly on the wrist. It also covers key health metrics such as heart rate, sleep, and SpO2, making it a great all-around device for daily use. Its 10-day battery life means less frequent charging, adding to its convenience.

The Budget-Conscious

This buyer seeks a feature-rich smartwatch that offers excellent value without a high price tag. They prioritize getting the most functionality, such as health monitoring and smart features, for their money.

It delivers a robust, connected experience at an accessible price point.

The Fashion-Forward

This user views their smartwatch as both a tech gadget and a style accessory. They look for a device with a sleek design, a high-quality display, and materials that complement their personal style.

The Haylou Rs4 Plus features a large 1.78-inch AMOLED screen with a smooth 60Hz refresh rate, providing a visually impressive interface. Its design combines a metallic bezel with a convenient magnetic strap, offering a modern and sophisticated look suitable for various occasions.

Competitive features

When evaluating the Haylou Rs4 Plus Smartwatch against other models in our collection, it's important to focus on its specific, feature-rich profile. While detailed comparative data on alternatives like the Haylou Solar Neo 2 or Zeblaze Gtr 3 Pro is limited in our current analysis, the Rs4 Plus distinguishes itself with a comprehensive suite of health and fitness tracking capabilities housed in a stylish design.

Where it excels

Display Quality: The Haylou Rs4 Plus features a large 1.78-inch AMOLED display with a 368x448 pixel resolution and a 60Hz refresh rate, offering a vibrant, fluid, and detailed user interface that stands out for its clarity and responsiveness. Comprehensive Health Monitoring: It offers an extensive set of health-tracking functions, including continuous heart rate monitoring, SpO2 (blood oxygen) tracking, stress monitoring, detailed sleep stage analysis, and female health tracking, providing a holistic view of your well-being. Extensive Fitness Tracking: With 105 different sports modes, the Rs4 Plus is equipped to track a vast array of activities, making it a versatile companion for users with diverse fitness routines. Battery Life: Offering up to 10 days of battery life on a single charge, this smartwatch provides extended use without the need for frequent recharging, making it convenient for daily wear and travel.

Consider alternatives if...

Verdict

The Haylou Rs4 Plus Smartwatch is an excellent choice for individuals seeking a feature-packed yet accessible device for daily health and fitness management. Its high-quality AMOLED display, extensive health sensors, and long battery life provide significant value. It successfully combines practical functionality with a modern aesthetic, featuring a metallic bezel and a convenient magnetic strap, making it suitable for both workouts and everyday wear.

Specs comparison

	Haylou RS4 Plus smartwatch	Haylou Ls02 Pro Smartwatch	Haylou Solar Lite Ls05 Smartwatch	Haylou Solar Pro Smartwatch	Haylou S6 Blanco Smartwatch	Haylou Iron Neo Smartwatch
Water Resistance	ip68	ip68	ip68	ip68	ip68	ip68
Wireless Connectivity	bluetooth_5.1	-	Bluetooth 5.3	Bluetooth	bluetooth_5.2	-
Screen Size Inches	1.78 inches	1.85 inches	1.38 inches	1.43 1.2 - 1.8	1.78 1.2 - 1.8	1.43 inches
Battery Life Days	10 days	-	10 days	-	Up to 10 days	-
Sports Modes Count	105	100	100	100	100	100
Spo2 Sensor	Yes	Yes	Yes	Yes	Yes	Yes
Stress Monitoring	Yes	Yes	Yes	-	Yes	Yes
Heart Rate Measurement Mode	continuous	continuous	continuous	continuous	continuous	continuous
Compatibility Os	android 6.0 or higher, ios 11.0 or higher	-	Android 6.0 or higher, iOS 9.0 or higher	Android, iOS	android, ios	Android 6.0 and above; iOS 11.0 and above
Sleep Stages Tracking	Yes	Yes	-	-	Yes	-
Accelerometer	Yes	-	-	Yes	Yes	Yes
Screen Resolution	368x448	240x284	240x240 p	466x466	368x448 pixels	466x466
Smart Notifications	Yes	Yes	-	Yes	Yes	Yes
Bezel Material	metallic	metallic	metal	-	-	-
Case Material	polymer	-	-	-	-	metallic
Music Controls	Yes	Yes	-	-	Yes	Yes
Type Of Home Diagnostic Monitor	smartwatch	Smartwatch	Smartwatch	-	smartwatch	Smartwatch

Specs vs competitors

	Haylou RS4 Plus smartwatch	Colmi C8 Max Magnetic Strap Smartwatch	Blackview W70 Pro Smartwatch	Xo Gt4 Mini Smartwatch	Dtno 1 Ultra 3 Pro Smartwatch	Noise Pulse 4 Max Smartwatch
Water Resistance	ip68	ip68	ip68	ip67	ip68	ip68
Wireless Connectivity	bluetooth_5.1	Bluetooth 5.3	Yes	Bluetooth 5.0	-	bluetooth_5.3
Screen Size Inches	1.78 inches	1.93 1.2 - 1.8	1.52 inches	-	2.04 inches	2 inches
Battery Life Days	10 days	-	-	4 days	-	7 days
Sports Modes Count	105	-	110	-	-	100
Spo2 Sensor	Yes	Yes	Yes	Yes	Yes	Yes
Stress Monitoring	Yes	Yes	-	-	Yes	Yes
Heart Rate Measurement Mode	continuous	continuous	continuous	continuous	continuous	continuous
Compatibility Os	android 6.0 or higher, ios 11.0 or higher	Android 4.4, iOS 8.0	android, ios	Android 5.0 and above; iOS 10.0 and above	Android and iOS	-
Sleep Stages Tracking	Yes	Yes	Yes	Yes	-	-
Accelerometer	Yes	-	-	Yes	-	Yes
Screen Resolution	368x448	240x288	360*360 px	240x240	368x448	240x282
Smart Notifications	Yes	Yes	-	Yes	Yes	Yes
Case Material	polymer	Zinc alloy	metallic	unknown	Steel	-
Music Controls	Yes	Yes	-	Yes	Yes	Yes
Type Of Home Diagnostic Monitor	smartwatch	Smartwatch	Smartwatch	Smartwatch	-	Smartwatch