Haylou RS4 Plus Smartwatch – Premium AMOLED Display, Advanced Health Tracking & Stylish Design

The Haylou RS4 Plus is a game-changer in the budget smartwatch segment, offering a sleek design, cutting-edge 1.78-inch Retina AMOLED Display, and a wide array of health, fitness, and customization features — all at an affordable price. Whether you are a fitness enthusiast, working professional, or someone who values style and functionality in a watch, the RS4 Plus is a powerful all-rounder.

Launched in 2022 by Haylou, a sub-brand of Xiaomi, this smartwatch has quickly earned a reputation for combining premium features with unmatched value. With IP68 waterproof rating, 105 sports modes, SpO2 and heart rate monitoring, and magnetic strap comfort, the RS4 Plus is ideal for everyday wear and performance tracking.

Let’s dive into the full specification, real-world benefits, and why the Haylou RS4 Plus is one of the best-selling smartwatches in Bangladesh, now available at Tech Den.

General Specifications

Haylou RS4 Plus Smartwatch

HAYLOU RS4 Plus Smartwatch 1.78” AMOLED Display 105 Sports Modes 10-day Battery Life Smart Watch for Men Smart Watch for Women

Key Features of Haylou RS4 Plus

🖥️ 1.78” Retina AMOLED Display

Experience true visual clarity with a 368x448-pixel AMOLED screen, offering vibrant colors, deep blacks, and sharp text even in bright daylight. The 60Hz refresh rate ensures smoother transitions, making every swipe and scroll fluid and enjoyable.

🏃 105 Sports Modes

Whether you're running, cycling, skipping, or doing yoga, the RS4 Plus accurately tracks your performance across 105 different workout modes. Real-time data such as steps, calories, heart rate, and workout duration help you monitor and improve your fitness.

❤️ Advanced Health Monitoring

SpO2 Sensor – Check your blood oxygen levels to ensure healthy breathing patterns.

24/7 Heart Rate Monitor – Keep track of your heartbeat, even during rest.

Sleep Tracking – Understand your sleep cycles (deep, light, and awake times).

Temperature Monitoring – Check your skin temperature regularly.

Stress Tracking – Get a daily stress analysis based on heart rate variability.

💠 Magnetic Strap Design

The magnetic silicone strap not only enhances comfort but also solves the hassle of misfit buckle holes. Ideal for people who want a sleek, adjustable, and easy-to-wear smartwatch for all-day use.

🖼️ 100+ Watch Faces + Custom Upload

Choose from over 100 stylish cloud-based watch faces or upload your own image to personalize your watch. Whether you want minimal, sporty, or animated dials — there’s something for everyone.

🔋 Long Battery Life

With typical use, the Haylou RS4 Plus can last up to 10 days on a single charge and 25 days in standby mode — ensuring worry-free usage on the go.

📲 Smart Notifications & UI

Stay connected without constantly checking your phone. Receive calls, texts, WhatsApp, Facebook, and app alerts directly on your wrist. The smooth 360° sliding UI makes navigation seamless and intuitive.

Use Cases – Who Is It For?

Fitness Enthusiasts: Track workouts, heart rate, and calories in real-time.

Health-Conscious Users: Monitor stress, sleep, and blood oxygen levels regularly.

Style Seekers: Wear a premium-looking watch with customizable dials.

Professionals: Get discreet notifications without taking out your phone in meetings.

Women: Track menstrual cycles with the female health reminder feature.

Benefits of Haylou RS4 Plus

🟢 Budget-Friendly Yet Premium – AMOLED display and rich features at an unbeatable price.

🟢 Reliable Performance – Fast, accurate sensors and smooth interface.

🟢 Battery that Lasts – No need to charge every day.

🟢 IP68 Waterproof – Wear it during workouts, handwashing, or in the rain.

🟢 Stylish for Any Occasion – Office, gym, or casual — RS4 Plus fits in.

Any Drawbacks?

While the RS4 Plus offers excellent value, here are a few areas to consider:

🔴 No built-in GPS – Relies on smartphone GPS for location tracking.

🔴 No voice assistant or mic – Cannot take calls or use voice commands.

🔴 No third-party app support – Can't install external apps.

However, for this price, these are reasonable trade-offs.

What’s in the Box?

1x Haylou RS4 Plus Smartwatch

1x Magnetic Charging Cable

1x User Manual

1x Original Packaging

Why Buy From Tech Den?

Tech Den is a trusted gadget retailer in Bangladesh, known for authentic products, best prices, and excellent customer support. Here’s why you should buy from us:

✅ 100% Original Haylou Smartwatch

✅ Cash on Delivery Available Nationwide

✅ Free In-store Pickup from Our Showroom

✅ After-Sales Support and Warranty Services

✅ Trusted by Thousands of Gadget Lovers

How to Order?

Visit our physical showroom

Call us directly or order online

We deliver all over Bangladesh

Pay on delivery or via bKash/Nagad

Customer Testimonials

“Amazing display and battery life! Didn’t expect this level of quality in a budget smartwatch.”
— Rafiul Islam, Dhaka

“I use it daily for workouts. The sports modes and sleep tracking work perfectly.”
— Mithila Noor, Chattogram

“Ordered from Tech Den and received it in 2 days. Great service and genuine product.”
— Tanvir A., Sylhet

Frequently Asked Questions (FAQs)

Q1: Does the RS4 Plus have Bluetooth Calling?
No, it shows call alerts, but you cannot answer calls directly from the watch.

Q2: Can I swim with it?
It’s IP68 water-resistant, meaning it's safe for sweat, rain, and handwashing. Not recommended for swimming or diving.

Q3: Is it compatible with iPhone and Android?
Yes, it works with both Android 6.0+ and iOS 11.0+ via the Haylou Fun App or DaFit.

Q4: How do I change the watch faces?
Install the Haylou Fun app, pair your watch, and explore 100+ cloud-based dials or upload your own image.

Q5: How long does the battery last?
Up to 10 days with typical use, and around 6-7 days with heavy use.

Technical Summary Table

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Conclusion

If you're looking for a budget-friendly smartwatch with a premium AMOLED display, excellent health features, and customizable style — the Haylou RS4 Plus is a top contender. Now available in Bangladesh exclusively at Tech Den. Get yours now before stock runs out!

🛒 Buy Now – Your Perfect Smartwatch Awaits!