Size: 1.95-inch
Resolution: 410*502px, AMOLED
Touch screen: Full screen multi-touch
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Free & fast shipping
1-Year Free Warranty
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Pre-Sale
Runmefit RACER 4
¥16,400
¥23,400
SAVE ¥7,000
What’s In It For You?
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Vibrant 1.43" AMOLED Display: See your world in breathtaking color.
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Epic 8-Day Battery: Charge less, live more.
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Advanced Performance Tracking: Precision data to crush your goals.
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Real-Time Heart Rate Zones: Optimize your intensity, instantly.
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Advanced Sleep & Recovery Analysis: Wake up ready to perform.
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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.
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Free & fast shipping
1-Year Free Warranty
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.
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.
Runmefit RACER 4
Alpine Green
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Alpine Green
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Glacier Silver
SAVE
¥7,000
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.
Screen
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
English、简体中文、繁體中文、Русский、Deutsch、Italiano、Français、Polski、Português、español、แบบไทย、日本語、Nederlands、한국인、Tiếng Việt、Melayu、Indonesia、română、Türkçe 19 languages
Weight and size
Product weight: 25.6g (Without strap)
In the Box
- 1x Packaging Box
- 1x Quick Start Guide
- 1x Runmefit RACER 4
- 1x Magnetic Charging Cable
- Limited Edition Athlete's Kit (While supplies last)
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