10,000+ Reviews

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10,000+ Reviews

30 Day Returns

Free Shipping Over $29

Worldwide Shipping

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Runmefit RACER 4

Pre-Sale

Runmefit RACER 4

$109.00 ~~$156.00~~ SAVE $47.00

What's In It For You?

Vibrant 1.43" AMOLED Display: See your world in breathtaking color.
Epic 8-Day Battery: Charge less, live more.
Advanced Performance Tracking: Precision data to crush your goals.
Real-Time Heart Rate Zones: Optimize your intensity, instantly.
Advanced Sleep & Recovery Analysis: Wake up ready to perform.
100+ Dedicated Sports Modes: A mode for every way you train.
All-Day Activity Monitoring: Capture your total daily effort.
24/7 Wellness Tracking: Monitor your health day and night.

*Lock in limited pre-sale gift kit now.
*All pre-orders will begin shipping on September 29, 2025.

Loved by Early Testers

As a runner, I live by my data. The RACER 4 is surprisingly accurate. The real-time heart rate zones have totally changed how I approach my training runs. It feels like I have a personal coach on my wrist.

Jenna S.

Love the watch, battery is amazing, and the screen is gorgeous. Just wish the strap came in more colors out of the box. Still, an easy recommendation for any serious runner. The value is unbeatable.

Michael K.

I've used watches from the big brands that cost 3x as much, and the RACER's AMOLED screen is just as good, if not better. The value here is insane. Finally, a watch that feels premium without emptying my wallet.

Mark R.

Honestly, I was sold on the look first! I got the Alpine Green and get compliments all the time. It's super lightweight and comfortable to wear 24/7, from the gym to the office. It doesn't scream 'sport watch,' it just looks cool.

Chloe B.

I was skeptical at first, given the price point. But from the easy setup to the bright, responsive screen, this watch has exceeded all my expectations. It tracks my workouts perfectly and the core smart features are flawless. Genuinely impressed.

Alex P.

Jenna S.

Love the watch, battery is amazing, and the screen is gorgeous. Just wish the strap came in more colors out of the box. Still, an easy recommendation for any serious runner. The value is unbeatable.

Michael K.

Mark R.

Chloe B.

Alex P.

Runmefit RACER 4

Alpine Green

Alpine Green
Glacier Silver

SAVE

$109.00

Overview
Tech Specs
In the Box
App Download

Engineered for Every Stride

Built for runners. Its seamless design lets you focus purely on your pace and performance, not on your gear.

Your Progress, All in One Place

Sync every workout to the Runmefit app to track your history, spot trends, and plan your next move.

Win the Day Before It Starts

Our recovery analysis reads your sleep quality, telling you exactly when to push hard or take a rest day.

Beyond the Workout

Get a complete 24/7 picture of your health by tracking steps, calories, and heart rate outside of your runs.

Ready for Real Life

IP68-rated to handle sweat, splashes, and sudden downpours, giving you total peace of mind on the go.

Train in Your Zone

Use real-time heart rate zones to train with precision and get the maximum benefit out of every single run.

Brilliance at a Glance

The large 1.43” AMOLED screen offers razor-sharp clarity, making your key stats instantly readable in any light.

Power for the Long Haul

With up to 8 days of battery, you can spend your week training and living, not tethered to a charger.

Runmefit AI

Turn your health data into personalized wisdom. It analyzes your sleep quality and workout trends to provide clear, actionable advice.

The Ultra-Bright AMOLED Display

See your stats without breaking stride. The stunning 1.43" AMOLED screen boasts 1000 nits of peak brightness, giving you a razor-sharp, ultra-bright view of your key running metrics in any light.

Just the Data That Matters

We cleared away the clutter to show you only the essential metrics a runner needs. See your real-time pace, heart rate, cadence, and distance at a single glance, keeping you focused on your performance.

Every Move Counts

Get a complete picture of your entire day's activity. We track your steps, distance, and calories burned outside of your workouts, helping you stay motivated and understand your daily progress.

Win the Day Before It Starts

Peak performance is built on great recovery. Our AI analyzes your sleep stages to provide a personalized recovery score and actionable insights, helping you know when to push hard or take a rest day.

Screen

Size: 1.43-inch

Resolution: 466*466px, 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

IP68 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: 31.2g (Without strap)