The Haylou Watch 4S Smart Watch is where advanced performance, precise tracking, and premium design come together. Built for users who expect flagship-grade capability without the high-end price, this wearable blends a vivid 1.43-inch AMOLED display, dual-chip GPS, 24/7 heart-rate and SpO₂ monitoring, and Bluetooth 5.3 calling into a single, beautifully crafted timepiece. Whether you’re tracking a marathon, attending a meeting, or simply living life on the go, the Haylou 4S keeps you connected, informed, and in control — all while looking effortlessly stylish.
Bluetooth Calling • Voice Assistant • Shake to Take Photo • Weather Updates • Find My Phone • Games • Power Saving Mode • Do Not Disturb Mode
🌟 Flagship Design, Flagship Display
The first thing you’ll notice on the Haylou Watch 4S is its stunning 1.43-inch AMOLED HD screen. Boasting a 466 × 466 pixel resolution and up to 1000 nits brightness, every icon, text, and animation appears crisp and vibrant — even under harsh sunlight. The 2.5D curved glass feels ultra-smooth to the touch, while the aluminum-alloy rotating crown adds a tactile premium feel that’s often missing in budget watches.
Whether you’re scrolling through notifications, navigating menus, or checking your fitness stats, the rotating crown offers mechanical precision and comfort. Combined with durable build quality and an elegant circular frame, the Haylou 4S blends style with practicality — perfect for both workouts and formal wear.
🛰️ Next-Level 5-System GPS Accuracy
Gone are the days of route “drift” ruining your fitness data. The Haylou Watch 4S uses a dual-band independent GPS chip supporting five global satellite systems — GPS, BeiDou, GLONASS, Galileo, and QZSS.
Whether you’re jogging through Dhaka’s busy streets, trekking in the Chittagong Hill Tracts, or cycling down coastal roads, the watch locks your position quickly and tracks every move with accuracy. This system ensures better signal reception even in urban canyons or under heavy tree cover, delivering professional-grade outdoor tracking without needing your phone.
💪 Your Personal Health and Fitness Companion
The Haylou 4S does more than just count steps — it provides real-time insights into your overall wellness:
24/7 Heart Rate Monitoring: Tracks your pulse all day and alerts you to unusual spikes or drops.
SpO₂ Monitoring: Measures blood-oxygen saturation to help you assess fatigue or stress levels.
Sleep Analysis: Monitors deep, light, and REM sleep phases to help improve your rest quality.
Stress & Relaxation Tracking: Detects stress levels and offers breathing exercises for quick relief.
Menstrual Cycle Tracking: For women, keeps an easy record of cycles with health reminders.
Sedentary & Hydration Alerts: Encourages healthy daily routines, especially during long work sessions.
Thanks to upgraded motion and biosensors with self-developed algorithms, these features now deliver more accurate results while consuming less power.
⚙️ 120 + Sports Modes with AI Coaching
From running, cycling, and swimming to yoga, badminton, or football, the Haylou Watch 4S supports 120 + sports modes. Its AI-powered tracking engine detects workout types automatically and records duration, distance, heart rate, and calories burned.
Pair it with the Haylou Fun app to review detailed graphs of your sessions, set weekly goals, and even share achievements online. The intuitive interface allows switching modes with a single tap, so you can focus on performance instead of fumbling through settings.
📞 Bluetooth 5.3 Calling and Smart Notifications
Stay connected without pulling out your phone. The Haylou Watch 4S integrates Bluetooth V5.3 technology that delivers crystal-clear voice calls and instant notification sync.
Answer calls directly from your wrist with one touch, dial contacts, or access call history. Incoming texts, WhatsApp alerts, Facebook notifications, or emails pop up instantly. Whether you’re driving, cooking, or exercising, you’ll never miss what matters.
Its dual-chip architecture ensures stable connections and lower power consumption for uninterrupted conversations.
🎨 Customizable Watch Faces and Split-Screen Interface
Express your individuality with 200 + dynamic online watch faces — from minimalist analog designs to cyberpunk themes. You can even create your own dial by uploading a favorite photo.
The watch’s split-screen feature gives quick access to essential widgets like weather, steps, heart rate, and music controls. Navigate your day smarter with a single swipe.
💬 AI Voice Assistant on Your Wrist
Control your world with your voice. The built-in AI Assistant handles reminders, timers, weather queries, and smart-device commands hands-free. It supports bilingual voice recognition and responds quickly, letting you stay focused during workouts or when your hands are full.
📸 Shake to Capture Photos
No need to fumble with your phone for group shots — simply flick your wrist to activate the remote camera feature. The watch instantly triggers your smartphone camera, so you can take selfies or full-group photos easily. Perfect for travel, parties, or family gatherings.
🔋 18-Day Battery Powerhouse
Equipped with a 400 mAh battery and a power-efficient chip, the Haylou 4S delivers remarkable endurance:
Up to 18 days (Basic Mode) – time, steps, sleep only.
10 days (Typical Use) – heart rate, notifications, and occasional GPS.
Magnetic charging makes re-powering quick and effortless. Intelligent battery alerts notify you before the watch runs low, ensuring uninterrupted performance.
💧 1 ATM Water Resistance — Everyday Protection
With its 1 ATM rating, the Haylou Watch 4S is protected against splashes, rain, sweat, and hand washing. That means you can keep it on through your daily routine without worrying about moisture damage. However, it isn’t designed for swimming or diving.
🧠 Smarter Everyday Utilities
Beyond fitness, the Haylou 4S enhances daily productivity with dozens of convenient tools:
Weather Updates & Alarms – Stay informed before heading out.
Timer / Stopwatch / Calendar / Flashlight – Essentials right on your wrist.
Find My Phone / Find My Watch – Locate lost devices instantly.
Do Not Disturb & Power Saving Modes – Customize battery usage and focus time.
Mini-Games & Vibration Intensity Control – Add fun and comfort to daily use.
🎁 What’s in the Box
Haylou Watch 4S Smartwatch × 1
Premium Replacement Strap × 1
HD Screen Protector × 1
Magnetic Charging Cable × 1
Quick Start Guide × 1
Haylou even includes a spare strap and protector, so you’re getting both style and longevity right out of the box — a rare value addition at this price point.
Flagship Experience on a Budget
The Haylou Watch 4S Smart Watch delivers the feel of a premium smartwatch without the cost. From its vibrant AMOLED display and precise five-satellite GPS tracking to extensive health features and smart connectivity, every element has been engineered for efficiency and comfort.
If you want a stylish, durable, and intelligent watch that performs across workouts, office hours, and weekend adventures — all while staying within budget — the Haylou 4S is the ideal choice.
