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Fastrack Radiant FX4 – Quick Summary
Fastrack Radiant 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. The best price in India is ₹5,499 on Amazon (MRP ₹7,995, 31% off). It is available at 2 stores. It is rated 4.3/5 from 347 ratings.
- Price by store: Amazon ₹5,499; Flipkart ₹5,499.
- Price history: All-time low ₹3,759, all-time high ₹7,995, average ₹5,326. The current price is about 3% above its average.
- Price position: Priced lower than 34% of the 1412 smartwatches listed on WatchPriceIndia. Fastrack has 115 smartwatches listed; this is the 108th cheapest.
- 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, Reject Call.
- 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 mm.
- Platform: works with Android, iOS, RAM: 128 MB.
- Other: companion app: Fastrack Smart World, warranty: 1 Year.
Price segment: Fastrack Radiant FX4 is in the mid-range segment (₹3,001 – ₹10,000).
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 • Smartwatch
Fastrack Radiant FX4 Smartwatch - Full Review, Price & Should You Buy?
Last updated:Display
1.51 inches AMOLED
Battery Life
Up to 5 Days
Water Resistance
1.5 mm
Connectivity
BT 5.3, Wi-Fi
Sensors
Accelerometer, Optical Heart Rate Sensor, SpO2 Sensor
Smart Features
Call, Messaging, Email, Voice Control
Elevate your everyday with the Fastrack Radiant FX4 smartwatch, a perfect blend of style and smart functionality. Designed for the modern trendsetter, this smartwatch boasts a vibrant display and a sleek, comfortable design that complements any outfit. Stay on top of your health goals with comprehensive tracking features, including heart rate monitoring, sleep analysis, and multiple sports modes. Seamlessly manage calls, notifications, and music directly from your wrist, keeping you connected without missing a beat. With its robust build and intuitive interface, the Fastrack Radiant FX4 is more than just a timepiece – it's your ultimate lifestyle companion, empowering you to live smarter and shine brighter.
Best Price Today
₹5,499
MRP ₹7,995
↓ Save ₹2,496 (31%)
📦 on amazon
💰 Compare Prices
Best Prices Across All Stores
Live prices updated every hour. Click to buy directly from the store.
| Store | Price | Discount | Delivery | Action |
|---|---|---|---|---|
| BEST PRICE |
₹5,499 | 31% OFF | ✔ Free, 3 - 6 Days | Buy Now → |
| |
₹5,499 | 31% OFF | ✔ Free, 2 - 3 Days | Buy → |
| |
₹5,795 | 30% OFF | ✔ Free, 2 - 3 Days | Buy → |
| |
₹4,549 | 43% OFF | ✔ Free, 3 - 6 Days | Out of Stock → |
| |
₹5,651 | 29% OFF | ✔ Free, 2 - 5 Days | Out of Stock → |
⚡ Prices last updated: 5 minutes ago. Prices may change. Verify on retailer site before purchase.
📈 Price History
180-Day Price Trend
Track how the price has moved to decide the best time to buy.
All-time Low: ₹3,759 | All-time High: ₹7,995 | Average: ₹5,327
📋 Full Specs
Complete Specifications
Item Information
| Brand | Fastrack |
| Ideal for | Men, Women |
| Model Number | 38158NM01 |
| Model Name | Radiant FX4 |
Design & Build
| Dial Color | Black |
| Dial Shape | Round |
| Strap Color | Black |
| Strap Material | Stainless Steel |
| Dial Material | Metal |
| Size | Free Size |
| Width | 44.05 mm |
| Height | 36 mm |
| Thickness | 11.5 mm |
| Diameter | 1.51 inches |
| Weight | 120 g |
| Number Of Buttons | 1 |
| Closure | Clip Clasp |
| Scratch Resistant | No |
| Water Resistant | Yes |
| Water Resistance Depth | 1.5 mm |
| IP / ATM Rating | IP68 |
| Rotating Crown / Bezel | Yes |
Display
| 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
| Battery Life | Up to 5 Days |
| Rechargeable Battery | Yes |
| Battery Type | Lithium Polymer |
| Charge Time | 2 hours |
| Charger Type | Magnetic Pin Charger |
| Wireless Charging | No |
| Fast Charging | No |
Connectivity
| Bluetooth | Yes |
| Bluetooth Version | 5.3 |
| Wi-Fi | No |
| Compatible Device | Smartphones |
| Operating Range | 10 m |
Performance
| Compatible Operating System | Android, iOS |
| RAM | 128 MB |
| Expandable Memory | No |
Calling & Audio
| Microphone | Yes |
| Speaker | Yes |
| Audio Features | Music Control |
Smart Features
| Call Function | Bluetooth Calling |
| Call Features | Dial Pad, Call History, Sync Contacts, Reject Call |
| 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 World |
| Watch Faces | 100+ |
| Other Watch Functions | Timer, Stopwatch, Weather, Find My Phone, AI Voice Assistant |
Additional Information
| Usage | Fitness, Lifestyle |
| Language | English |
| Chronograph | No |
| Warranty | 1 Year |
| Watch Type | Smartwatch |
| Other Features | Calculator, In-built Games |
Health & Sensors
| 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 | Sedentary Reminder, Hydration Reminder, Breathing Exercise |
Pros & Cons — Expert Assessment
✅ Pros
- Stylish and modern design
- Comprehensive health tracking features
- Convenient smart notifications and call management
- Multi-day battery life
- User-friendly interface
- Multiple sports modes
- Customizable watch faces
❌ Cons
- Limited advanced smart features compared to premium models
- Basic water resistance (not suitable for swimming)
- Proprietary charging cable
- No built-in GPS for standalone tracking
💬 Community Reviews
User Reviews & Ratings
4.3
★★★★☆
Based on 347 verified reviews
Flipkart Customer Verified Purchase
Purchased from flipkart
★★★★★
Same product delivery and very nice. Product service
Helpful?
shahruk khan Verified Purchase
Purchased from flipkart
★★★★★
What's sanda wonderful
Helpful?
guddu yadav Verified Purchase
Purchased from flipkart
★★★★★
Sach an amazing product
Helpful?
Deeksha Shankhdhar Verified Purchase
Purchased from flipkart
★★★★★
Amezing
Helpful?
Paresh Bhagat Verified Purchase
Purchased from flipkart
★★★★★
Gr8
Helpful?
❓ FAQ
Fastrack Radiant FX4 Smartwatch Buying Guide & FAQs
The best price of Fastrack Radiant FX4 in India is ₹5,499 on Amazon against an MRP of ₹7,995.
Fastrack Radiant FX4 is available at 2 stores: Amazon ₹5,499; Flipkart ₹5,499.
All-time low ₹3,759, all-time high ₹7,995, average ₹5,326. The current price is about 3% above its average.
Fastrack Radiant FX4 has a rated battery life of up to 5 Days.
Yes, Fastrack Radiant FX4 supports Bluetooth Calling.
Fastrack Radiant FX4 is water resistant (IP68, 1.5 mm).
Fastrack Radiant FX4 offers Heart Rate Monitor, SpO2, Sleep Tracking, Stress Monitoring, Women's Health Tracking, Step Count and Calorie Count and 100+ sports modes.
⚖ Head to Head
Fastrack Radiant FX4 Compared to Others
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