Technical sheet

Haylou RS4 Plus smartwatch

Name: Haylou RS4 Plus smartwatch
Brand: Haylou
SKU: 141518023
Price: 55.99 EUR
Availability: InStock
Rating: 4 (1 reviews)

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1 Reviews

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Long

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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" AMOLED Retina display and a sleek metallic bezel, it offers vibrant visuals and premium style. Track your well-being with advanced SpO2, heart rate, sleep, and stress monitoring, plus female health tracking. Conquer over 105 workout modes with IP68 water resistance. Enjoy a 10-day battery, 100+ customizable watch faces, and smart notifications. Effortlessly stylish with a magnetic strap

This device is unlocked from any phone company (factory unlocked).

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

Dimensions

1.53´´ | 48.4 X 48.4 X 11.5 Mm
Weight

48 Gr (With 2 Straps)
Resolution

HD 360x360 Px
Flash Light

Yes
Color

Clear
Age

Adult
Features

Wrist heart rate
Product Aspect

New

Features of Haylou RS4 Plus

Color Clear

Color

Clear

Age Adult

Age

Adult

Features Wrist heart rate

Features

Wrist heart rate

Product Aspect New

Product Aspect

New

Key differentiators

Comprehensive health suite with continuous heart rate, SpO2, sleep, and stress monitoring

Durable design with an aluminum alloy case and IP68 water resistance

Extensive fitness tracking with 105 built-in sports modes

Large 1.78-inch AMOLED display with a 60Hz refresh rate for clear, fluid visuals

Long battery life of up to 10 days with typical usage

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

2026-09-17

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

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

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Frequently bought together

Best sellers

Use cases

All-Day Health Monitoring 90% Fit

This smartwatch is ideal for continuous, all-day health tracking. With its long battery life and comprehensive suite of sensors, you can monitor key metrics without frequent charging interruptions.

Continuous heart rate monitoring,SpO2 (blood oxygen) sensor,Sleep tracking,Stress monitoring,10-day battery life

Indoor & Multi-Sport Fitness Tracking 80% Fit

With 105 different sports modes, this watch is a versatile companion for a wide range of indoor and outdoor activities. It's a great, easy-to-use option for tracking workouts at the gym or trying new sports.

105 sports modes,Accelerometer and gyroscope,IP68 water resistance,AMOLED display

Daily Wear & Smart Notifications 95% Fit

This watch serves as a practical everyday accessory, keeping you connected without needing to check your phone constantly. Its stylish design, long battery life, and smart features make it perfect for daily use.

Smart notifications,Music controls,Find my phone,Weather forecast,Aluminum alloy case

Sleep Quality Analysis 90% Fit

For users looking to understand and improve their sleep, this watch offers detailed tracking. It monitors different sleep stages, providing valuable insights into your nightly rest and recovery patterns.

Sleep tracking,Sleep stages tracking,Long battery life for overnight wear

Casual Outdoor Activities (Walking, Light Hiking) 60% Fit

While it lacks built-in GPS for precise route mapping, this watch is suitable for tracking casual outdoor activities like walks or light hikes.

IP68 water resistance,Accelerometer for step counting,Heart rate monitor,Multiple sports modes

Best for

Best for Casual Daily Tracking

This smartwatch is great for getting started with activity tracking, offering easy-to-use features like sleep monitoring, smart notifications, and music controls for everyday convenience.

Based on: sleep_tracking: yes, Smart notifications: yes, Music controls: yes

Ideal for Budget-Conscious Beginners

Offering a great value, this watch provides essential health features like continuous heart rate monitoring, an SpO2 sensor, and stress monitoring without a high price tag.

Based on: heart_rate_monitor: yes, Spo2 sensor: yes, Stress monitoring: yes

Great for Stylish Connectivity

With its sleek aluminum alloy frame, metallic bezel, and vibrant AMOLED display, this watch pairs modern style with seamless smartphone integration for both Android and iOS.

Based on: case_material: aluminum alloy, Bezel material: metallic, Display type: amoled (1.78" AMOLED HD display), Compatibility: android, ios

Benefits

FunctionalMonitor key health metrics around the clock

Stay informed about your well-being with built-in sensors that track vital signs. The watch offers continuous heart rate monitoring, SpO2 (blood oxygen) measurement, and stress level tracking, providing a holistic view of your health.

Spo2 sensor: yes

Stress monitoring: yes

Heart rate monitor: yes

Heart rate measurement mode: continuous

FunctionalTrack a wide variety of workouts and activities

Whether you're a runner, cyclist, or enjoy various other activities, the watch supports you with 105 different sports modes. Its multi-sport capability allows you to accurately record and analyze your performance across a diverse range of exercises.

Sports modes count: 105

Type of sports monitor: Multi-Sport

FunctionalEnjoy a vibrant and responsive display

The large 1.78-inch AMOLED display provides sharp, vivid colors and deep blacks, making notifications and health data easy to read. A 60Hz refresh rate ensures smooth scrolling and a fluid user interface.

Display size: 1.78 inches

Refresh rate: 60Hz

FunctionalStay connected without reaching for your phone

Pair the watch with your Android or iOS device via Bluetooth 5.1 to receive smart notifications for calls, messages, and apps directly on your wrist. You can also control your music and use the 'find my phone' feature for added convenience.

Compatibility: android

ios

Smart notifications: yes

Music controls: yes

Find my phone: yes

FunctionalWear your watch confidently in various conditions

Constructed with an aluminum alloy frame and featuring IP68 water resistance, this smartwatch is built to withstand daily activities. It is protected against dust and can be submerged in water, making it suitable for workouts and everyday life.

Case material: aluminum alloy

Ideal buyer profiles

The Health-Conscious User

This individual prioritizes tracking their daily health and wellness metrics. They are interested in monitoring key vitals like heart rate, blood oxygen levels, and sleep patterns to maintain a healthy lifestyle.

The Haylou Rs4 Plus is an excellent match, offering continuous heart rate monitoring, an SpO2 sensor for blood oxygen measurement, and detailed sleep and stress tracking. These features provide the comprehensive health insights this user is looking for.

The Casual User

This user wants a stylish and functional smartwatch for everyday use without being overwhelmed by complex features. They value convenience, long battery life, and seamless integration with their smartphone for notifications and basic activity tracking.

With up to 10 days of battery life, this watch minimizes the need for frequent charging. It delivers smart notifications, music controls, and weather forecasts directly to the wrist, while its large AMOLED display makes it easy to read and use for daily tasks.

The Multi-Sport Fitness Enthusiast

This person enjoys a variety of physical activities and wants a versatile device to track their performance across different sports. They need a watch that can keep up with their diverse workout routine, from gym sessions to outdoor activities.

Featuring 105 different sports modes, the Haylou Rs4 Plus allows this user to track a wide array of workouts. The IP68 water resistance means it can handle sweat and rain, making it a reliable companion for various fitness pursuits.

The Fashion-Forward Tech User

This buyer seeks a smartwatch that complements their personal style without sacrificing modern technology. They look for a device with a premium look and feel, a high-quality display, and customizable options.

The Haylou Rs4 Plus features a sleek aluminum alloy frame and a metallic bezel, giving it a polished look. Its large 1.78-inch AMOLED HD display with a 60Hz refresh rate offers a vibrant and smooth visual experience, while the silicone strap ensures comfort.

Competitive features

When evaluating the Haylou Rs4 Plus Smartwatch alongside competitors like the Zeblaze Vibe 8 and Xiaomi Mi Smart Band 9 Pro, it's clear that the market offers several options with similar core functionalities. The primary distinctions often lie in specific features such as display quality, the breadth of health monitoring, and design aesthetics, as the provided data shows minimal variation in other comparable specifications.

Where it excels

The Haylou Rs4 Plus stands out with its large 1.78-inch AMOLED Retina display, offering a high-resolution (368x448 pixels) and smooth 60Hz refresh rate for superior visual clarity. It provides a comprehensive suite of health tracking features, including SpO2, heart rate, sleep, stress, and dedicated female health monitoring, catering to users who want detailed wellness insights. With over 105 workout modes and IP68 water resistance, it offers extensive activity tracking versatility for a wide range of fitness routines.

Consider alternatives if...

Verdict

The Haylou Rs4 Plus Smartwatch is a strong contender for users who prioritize a high-quality display and a comprehensive set of health and fitness tracking features. Its combination of a vibrant AMOLED screen, extensive workout modes, and detailed wellness monitoring, including SpO2 and stress tracking, makes it a feature-rich option. While it shares a similar price point with its competitors, its robust feature set and premium design elements like the metallic bezel and magnetic strap present a compelling value proposition.

Specs comparison

	Haylou RS4 Plus smartwatch	Haylou Ls02 Pro Smartwatch	Haylou Rs5 Smartwatch	Haylou Solar Pro Smartwatch	Haylou Solar Lite Smartwatch	Haylou Vibe Smartwatch
Battery Life	10 days	-	9 days	7 days	10 days	-
Water Resistance	ip68	ip68	ip68	ip68	ip68	ip68
Compatibility	android, ios	-	android, ios	-	-	android, ios
Gps	No	-	No	No	No	No
Battery Type	rechargeable lithium	-	rechargeable lithium	rechargeable lithium	rechargeable lithium	-
Screen Size Inches	1.78 1.2 - 1.8	1.85 inches	2.01 inches	1.43 1.2 - 1.8	1.38 1.2 - 1.8	1.43 1.2 - 1.8
Battery Life Days	10 hours	10 hours	9 hours	7 hours	10 hours	7 hours
Type Of Sports Monitor	Multi-Sport	-	-	-	-	running, cycling, swimming, yoga
Sports Modes Count	105	100	150	100	100	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 and above, iOS 11.0 and above	android, ios	Android 6.0 onwards, iOS 11.0 and higher	Android, iOS	6	-
Sleep Stages Tracking	Yes	Yes	-	-	Yes	Yes
Resolution	HD 360x360 Px	240 X 284 Pixels	410 x 502	466x466	240x240	466x466
Accelerometer	Yes	-	Yes	Yes	Yes	Yes
Screen Resolution	366x448	-	410 x 502	466x466	240x240 pixels	466x466
Smart Notifications	Yes	Yes	Yes	Yes	Yes	-
Bezel Material	metallic	metallic	-	-	-	-
Case Material	aluminum alloy	-	Silicone	-	metallic	-
Music Controls	Yes	Yes	-	-	Yes	Yes
Type Of Home Diagnostic Monitor	Smartwatch	Smartwatch	Smartwatch	-	smartwatch	smartwatch

Specs vs competitors

	Haylou RS4 Plus smartwatch	Cool Amoled Ultrathin Smartwatch	Hama 7000 Smartwatch	Ksix Explorer 2 Gps Smartwatch	Blackview W10 Pro Smartwatch	Honor Choice Moecen Smartwatch
Battery Life	10 days	5 days	6 days	5 days	5 days	-
Water Resistance	ip68	ip67	ip68	ip68	ip68	5 Atm
Compatibility	android, ios	android, ios	android, ios	android, ios	-	android, ios
Gps	No	No	Yes	Yes	-	-
Battery Type	rechargeable lithium	rechargeable lithium	Lithium Polymer	rechargeable lithium	-	-
Screen Size Inches	1.78 1.2 - 1.8	1.43 1.2 - 1.8	1.69 inches	2.15 inches	1.83 inches	1.39 1.2 - 1.8
Battery Life Days	10 hours	7 hours	6 days	5 days	5 hours	3 hours
Type Of Sports Monitor	Multi-Sport	-	running, cycling, swimming, hiking	Multi-Sport	-	running, cycling, swimming, free training
Sports Modes Count	105	-	14	multiple	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 and above, iOS 11.0 and above	-	android, ios	-	Android 6.0 or above \| iOS 9.0 or above	-
Sleep Stages Tracking	Yes	-	Yes	Yes	Yes	Yes
Resolution	HD 360x360 Px	-	-	320x386 px	240x284	454x454
Accelerometer	Yes	-	Yes	Yes	-	-
Screen Resolution	366x448	-	-	320x386	-	-
Smart Notifications	Yes	Yes	Yes	Yes	Yes	Yes
Case Material	aluminum alloy	-	Zinc Alloy	-	-	-
Music Controls	Yes	-	Yes	Yes	Yes	Yes
Type Of Home Diagnostic Monitor	Smartwatch	smartwatch	Smartwatch	Smartwatch	smartwatch	Smartwatch