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30 Day Returns

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Runmefit WATCH 4

Halloween Flash Sale

WATCH 4 Smartwatch

$89.99 ~~$109.99~~ SAVE $20.00

What Runmefit WATCH 4 Smartwatch Can Do For You?

Track heart rate, steps, and calories with ease
Personalized Sleep Analysis
Ultra-Precision Activity Tracking
Auto Run & Ride Detection
15-Day Battery Life (Daily Use)
3ATM Waterproof
100+ Sports Modes
Smart Reminders for Hydration & Inactivity
Messages, Weather & Music Tools

*Free Runmefit Sports Kit with orders placed by October 30th.

$20 OFF

Halloween Deals

31/10/2025 23:59:59

Code: TREATS20

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Runmefit WATCH 4

Midnight Black

Midnight Black
Blossom Pink
Space Gray

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$89.99

Hear From Our Real Users

David Verified

Super light, tracks everything I care about, and the battery lasts way longer than I expected.

R. F. Verified

I bought this to get a handle on my stress levels, and I've been using the breathing reminders way more than I expected. It actually helps me stay calm during my workday.

James M. Verified

Honestly, I used to roll my eyes at sleep tracking — figured it was just another tech fad. But now? I'm hooked. The nightly breakdowns are so spot-on that I've actually started going to bed earlier…I also like run tracking

Lisa G. Verified

I'm training for my first half marathon, and keeping my heart rate in the aerobic zone has been huge for building stamina. It keeps me engaged the whole time.

Ethan M. Verified

I've been using it for a week now. Love the AI-generated watch faces, they're so creative and unique. Super comfy strap, accurate data. Totally in love with this watch!

David Verified

Super light, tracks everything I care about, and the battery lasts way longer than I expected.

R. F. Verified

I bought this to get a handle on my stress levels, and I've been using the breathing reminders way more than I expected. It actually helps me stay calm during my workday.

James M. Verified

Lisa G. Verified

I'm training for my first half marathon, and keeping my heart rate in the aerobic zone has been huge for building stamina. It keeps me engaged the whole time.

Ethan M. Verified

I've been using it for a week now. Love the AI-generated watch faces, they're so creative and unique. Super comfy strap, accurate data. Totally in love with this watch!

Overview
Tech Specs
In the Box
App Download

Auto Run & Ride Detection

Start Moving, WATCH 4 Does the Rest. Automatically detect running and cycling workouts. Track effortlessly, stay focused, and train smarter.

Ultra-Precision Activity Tracking

Professional-Level Accuracy on Your Wrist. WATCH 4 records heart rate, pace, calories, and more with unmatched precision, helping you achieve your goals faster.

Upgraded Chip, Enhanced Performance

Faster. Smoother. Smarter. WATCH 4's new chip boosts speed and efficiency, ensuring smoother navigation, faster loading, and improved battery life.

8 Days Heavy Use

WATCH 4 keeps up, so you never slow down.

AI-Powered Sleep Insights

Better Sleep, Backed by AI. Sync sleep data to Runmefit App and get personalized AI insights for deeper rest,healthier habits, and improved wellness.

Auto Run & Ride Detection

Start Moving, WATCH 4 Does the Rest. Automatically detect running and cycling workouts. Track effortlessly, stay focused, and train smarter.

Ultra-Precision Activity Tracking

Professional-Level Accuracy on Your Wrist. WATCH 4 records heart rate, pace, calories, and more with unmatched precision, helping you achieve your goals faster.

Upgraded Chip, Enhanced Performance

Faster. Smoother. Smarter. WATCH 4's new chip boosts speed and efficiency, ensuring smoother navigation, faster loading, and improved battery life.

8 Days Heavy Use

WATCH 4 keeps up, so you never slow down.

AI-Powered Sleep Insights

Better Sleep, Backed by AI. Sync sleep data to Runmefit App and get personalized AI insights for deeper rest,healthier habits, and improved wellness.

Precise Tracking, Real-Life Benefits

Step Tracking

Count every step - whether you're walking the dog or pacing at work, stay aware and motivated.

Calorie Burn

Track calories accurately during workouts or chores—so you know what you’ve earned and burned.

Distance

From your morning jog to a weekend hike, see exactly how far you’ve come and keep improving.

Stand Activity

Get stand reminders to reduce sitting time, improve circulation, and stay energized.

Smarter, Clearer

No more guesswork. Track your pace, distance, calories, and heart rate with high precision, right on your wrist. The upgraded Runmefit App brings a sleek, intuitive layout that helps you quickly view what matters most to you.

8 Days

Heavy Use

15 Days

Daily Use

45 Days

Standby

*Actual battery life may vary based on user scenarios and intensity of use.

Battery that Lasts

Whether you're traveling, training for a marathon, or just juggling work and family, you can count on WATCH 4 to keep up—without constantly searching for a charger. Say goodbye to battery anxiety and stay focused on your goals, not your power level.

Days
of Heavy Use

Days
of Daily Use

Days
Standby Mode

Smarter Sleep Starts Here

Tired of waking up groggy? WATCH4 tracks your sleep in detail and works with the Runmefit App to give AI-powered insights. Understand your patterns and finally get the rest you deserve.

Bigger Screen, Clearer View

WATCH 4’s ultra-clear 1.95" AMOLED display gives you a smooth, vibrant viewing experience—even under sunlight. Easily check your stats, messages, and reminders anytime.

Effortless Control, Anytime

WATCH 4 features two intuitive side buttons, allowing you to easily view, swipe, and switch—even with sweaty fingers or during workouts. For example, check your pace and heart rate while running on a treadmill.

Faces for Every Mood

From a busy workday to weekend adventures, customize your WATCH4 with free watch faces from the app. Switch styles anytime to match your mood, outfit, or activity.

Smarter Living, All on Your Wrist

Screen

Size: 1.95-inch

Resolution: 410*502px, AMOLED

Touch screen: Full screen multi-touch

Materials

High strength plastics

Liquid silicone

Health Features

MAI Health Index

Heart Rate Monitor

Blood Oxygen Monitor

Sleep Monitor

Stress Monitor

Mood Tracking

Exercise Heart Rate

Health Reminder

Liveness Detection

Sports and Activities

Steps, calories, distance

100 sports modes

Sports records

MET

Communication Features

Bluetooth Calling

Notifications

Event Reminder

Weather

Music Control

Camera Control

Connectivity

Bluetooth version: Bluetooth 5.3

Bluetooth distance: 10 meters without obstacles

More apps

App Center, Breathe, World Clock, Pomodoro, Alarm Clock, Calculator, Timer, Stopwatch, Flashlight, Calendar, Find My Phone, etc.

Power

Battery: Built-in 360mAh Li-Polymer

Battery life: 8-15 days of use, 45 days of standby

Charging method: Magnetic charging cable

Charging time: Fully charge in about 2 hours

Waterproof

3ATM waterproof rating

Compatibilities

Application: Runmefit

Compatible Phone OS: iOS 12.0 / Android 7.0 and above

Google Health/Fit: Data sync compatible

Apple Health: Data sync compatible

Watch Language

27 languages including: Simplified Chinese, Traditional Chinese, English, Japanese, German, Spanish, French, Italian, Russian, Dutch, Portuguese, Korean, Thai, Arabic, Indonesian, Polish, Vietnamese, Hindi, Turkish, Hebrew, Malay, Romanian, Mongolian, Slovak, Czech, Hungarian, Portuguese (Brazil).

Weight and size

Product weight: 25.6g (Without strap)