Fastrack FX4 – Quick Summary
Fastrack FX4 is a smartwatch from Fastrack designed for men and women. Key highlights include a 1.51 inches AMOLED display, Up to 5 Days of battery life, Bluetooth Calling, SpO2 monitoring and 100+ sports modes. It is currently out of stock; the last known price in India was ₹5,499. It is rated 4.3/5 from 347 ratings.
- Last known prices: Flipkart ₹5,499.
- Price history: All-time low ₹3,459, all-time high ₹5,795, average ₹5,183.
- Display: 1.51 inches AMOLED, 466 x 466 pixels, 550 nits peak brightness, always-on display.
- Battery: Battery life is rated up to 5 Days, 2 hours charge time.
- Calling: Bluetooth Calling with Dial Pad, Call History, Sync Contacts.
- Health & fitness: Heart Rate Monitor, SpO2, Sleep Tracking, Stress Monitoring, Women's Health Tracking, Step Count and Calorie Count; 100+ sports modes.
- Connectivity: Bluetooth 5.3.
- Water resistance: IP68, 1.5 m.
- Platform: OS: Proprietary OS, works with Android, iOS, RAM: 128 MB.
- Other: companion app: Fastrack Smart, warranty: 1 Year.
Best suited for: answering calls from the wrist, health monitoring and fitness tracking with 100+ sports modes.
Keep in mind: no built-in GPS, no NFC and no ECG.
Prices last checked: . All prices in INR.
Fastrack FX4 Smartwatch - Review, Last Price & Best Alternatives (2026)
Last updated:Elevate your everyday with the Fastrack FX4 smartwatch, designed for the modern, active individual. This sleek and stylish wearable seamlessly blends cutting-edge technology with intuitive functionality. Track your fitness goals with precision, monitor your health metrics, and stay connected on the go with smart notifications right on your wrist. Featuring a vibrant display and a comfortable design, the FX4 is your ultimate companion for both workouts and daily life. Experience convenience, style, and performance, all packed into one smart device. Take control of your well-being and connectivity with the Fastrack FX4.
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| Store | Price | Discount | Delivery | Action |
|---|---|---|---|---|
BEST PRICE |
₹5,499 | 31% OFF | ✔ Free, 2 - 3 Days | Out of Stock → |
⚡ Prices last updated: 37 minutes ago. Prices may change. Verify on retailer site before purchase.
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Complete Specifications
| Brand | Fastrack |
| Ideal for | Men, Women |
| Model Number | 38158QM01 |
| Model Name | FX4 |
| Dial Color | Black |
| Dial Shape | Round |
| Strap Color | Grey |
| Strap Material | Stainless Steel |
| Dial Material | Metal |
| Size | Free Size |
| Width | 44 mm |
| Height | 36 mm |
| Thickness | 11.5 mm |
| Diameter | 1.51 inches |
| Weight | 120 g |
| Number Of Buttons | 1 |
| Closure | Foldover Clasp |
| Scratch Resistant | No |
| Water Resistant | Yes |
| Water Resistance Depth | 1.5 m |
| IP / ATM Rating | IP68 |
| Rotating Crown / Bezel | Yes |
| Display Type | AMOLED |
| Display Size | 1.51 inches |
| Display Resolution | 466 x 466 pixels |
| Touchscreen | Yes |
| Backlight Display | Yes |
| Date & Time Display | Digital |
| Peak Brightness | 550 nits |
| Always-On Display | Yes |
| Other Display Features | Always-On Display |
| Battery Life | Up to 5 Days |
| Rechargeable Battery | Yes |
| Battery Type | Lithium Polymer |
| Charge Time | 2 hours |
| Charger Type | Magnetic Charger |
| Wireless Charging | No |
| Fast Charging | No |
| Bluetooth | Yes |
| Bluetooth Version | 5.3 |
| Wi-Fi | No |
| Compatible Device | Android, iOS |
| Operating Range | 10 m |
| Operating System | Proprietary OS |
| Compatible Operating System | Android, iOS |
| RAM | 128 MB |
| Expandable Memory | No |
| Microphone | Yes |
| Speaker | Yes |
| Audio Features | Music Control |
| Call Function | Bluetooth Calling |
| Call Features | Dial Pad, Call History, Sync Contacts |
| Messaging Support | Yes |
| Email Support | No |
| Notification | Yes |
| Notification Type | Vibration, Ring |
| Voice Control | Yes |
| Gesture Control | No |
| Third Party App Support | No |
| Calendar | Yes |
| Alarm Clock | Yes |
| NFC | No |
| eSIM / Cellular | No |
| Music Control | Yes |
| Companion App | Fastrack Smart |
| Watch Faces | 100+ |
| Other Watch Functions | AI Voice Assistant, One Click Measurement, Stopwatch, Timer, Weather, Find My Phone |
| Usage | Fitness, Casual |
| Language | English |
| Chronograph | No |
| Warranty | 1 Year |
| Watch Type | Smartwatch |
| Other Features | Calculator, Camera Control |
| Sensor | Accelerometer, Optical Heart Rate Sensor, SpO2 Sensor |
| Heart Rate Monitor | Yes |
| Step Count | Yes |
| Calorie Count | Yes |
| GPS | No |
| Compass | No |
| Altimeter | No |
| Blood Oxygen (SpO2) | Yes |
| ECG | No |
| Blood Pressure Monitor | No |
| Skin Temperature Sensor | No |
| Sleep Tracking | Yes |
| Stress Monitoring | Yes |
| Respiratory Rate | No |
| Women's Health / Cycle Tracking | Yes |
| Sports Modes | 100+ |
| VO2 Max | No |
| Fall Detection | No |
| Crash Detection | No |
| Emergency SOS | No |
| Other Fitness Features | Breathing Exercise, Activity Tracker |
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Fastrack FX4 Smartwatch Buying Guide & FAQs
What is the price of Fastrack FX4 in India?
Fastrack FX4 is currently out of stock. Its last known price in India was ₹5,499.
What is the lowest price of Fastrack FX4?
All-time low ₹3,459, all-time high ₹5,795, average ₹5,183.
What is the battery life of Fastrack FX4?
Fastrack FX4 has a rated battery life of up to 5 Days.
Does Fastrack FX4 support calling?
Yes, Fastrack FX4 supports Bluetooth Calling.
Is Fastrack FX4 water resistant?
Fastrack FX4 is water resistant (IP68, 1.5 m).
What health features does Fastrack FX4 have?
Fastrack FX4 offers Heart Rate Monitor, SpO2, Sleep Tracking, Stress Monitoring, Women's Health Tracking, Step Count and Calorie Count and 100+ sports modes.
What display does Fastrack FX4 have?
Fastrack FX4 has a 1.51 inches AMOLED, 466 x 466 pixels, 550 nits peak brightness, always-on display.