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⚖ Comparison 2026
Fastrack Radiant FX4 vs boAt Wave Sigma
Fastrack Radiant FX4 Vs boAt Wave Sigma — detailed side-by-side specs, prices and verdict.
Which is better: Fastrack Radiant FX4 vs boAt Wave Sigma?
Comparing Fastrack Radiant FX4 and boAt Wave Sigma: boAt Wave Sigma is the better pick for the lowest price and the longest battery life; Fastrack Radiant FX4 is the better pick for health and fitness tracking, display quality and software experience.
- Price: Fastrack Radiant FX4 is priced at ₹5,499; boAt Wave Sigma is priced at ₹1,599. boAt Wave Sigma is the cheapest, ₹3,900 less than Fastrack Radiant FX4.
- Display: Fastrack Radiant FX4 has a 1.51 inches AMOLED display; boAt Wave Sigma has a 2.01 inches LCD display.
- Battery life: Fastrack Radiant FX4: Up to 5 Days; boAt Wave Sigma: Up to 7 Days. boAt Wave Sigma claims the longest battery life.
- Calling: Fastrack Radiant FX4: Bluetooth Calling; boAt Wave Sigma: Bluetooth Calling.
- Health tracking: Fastrack Radiant FX4: Heart Rate, SpO2, Sleep Tracking, Stress Monitoring; boAt Wave Sigma: Heart Rate, SpO2, Sleep Tracking.
- Ratings: Fastrack Radiant FX4 is rated 4.3/5 from 347 ratings; boAt Wave Sigma is rated 4.1/5 from 28,027 ratings.
Last updated: · Prices in INR.
Key Stats
Expert Scores by Category
❤️ Health & Sensors
Fastrack Radiant FX4 wins
🔋 Battery Life
Fastrack Radiant FX4 wins
📺 Display Quality
Fastrack Radiant FX4 wins
💰 Value for Money
Fastrack Radiant FX4 wins
🖥 Software User Experience
Fastrack Radiant FX4 wins
Key Differences: Fastrack Radiant FX4 vs boAt Wave Sigma
Feature |
Fastrack Radiant FX4 |
boAt Wave Sigma |
|---|---|---|
| Price | ₹5,499 | ₹1,599 |
| Display Size | 1.51 inches | 2.01 inches |
| Display Type | AMOLED | LCD |
| Resolution | 466 x 466 pixels | 240 x 296 pixels |
| Battery Life | Up to 5 Days | Up to 7 Days |
| IP Rating | IP68 | IP67 |
| Sports Modes | 100+ | 700+ |
| Bluetooth Version | 5.3 | 5.0 |
Side-by-Side Spec Comparison
Blue highlight = best price.
|
Comparing
2 smartwatches · 40+ specs
|
Fastrack
Fastrack Radiant FX4
★★★★☆ 4.3 ₹5,499
|
boAt
boAt Wave Sigma
★★★★☆ 4.1 ₹1,599
|
|---|---|---|
| 🎨 Design | ||
| Dial Color | Black | Black |
| Dial Shape | Round | Rectangle |
| Strap Color | Black | Purple |
| Strap Material | Stainless Steel | Silicone |
| Dial Material | Metal | Polycarbonate |
| Size | Free Size | One Size |
| Width | 44.05 mm | -- |
| Height | 36 mm | -- |
| Thickness | 11.5 mm | -- |
| Diameter | 1.51 inches | -- |
| Weight | 120 g | -- |
| Number of Buttons | 1 | 1 |
| Closure | Clip Clasp | Buckle |
| Scratch Resistant | No | -- |
| Water Resistant | Yes | Yes |
| Water Resistance Depth | 1.5 mm | -- |
| IP / ATM Rating | IP68 | IP67 |
| Rotating Crown / Bezel | Yes | No |
| 📺 Display | ||
| Display Type | AMOLED | LCD |
| Display Size | 1.51 inches | 2.01 inches |
| Display Resolution | 466 x 466 pixels | 240 x 296 pixels |
| Touchscreen | Yes | Yes |
| Backlight Display | Yes | Yes |
| Date & Time Display | Digital | Digital |
| Peak Brightness | 550 nits | 550 nits |
| Always-On Display | Yes | No |
| Other Display Features | Always-On Display | Wake Gesture |
| 🔋 Battery | ||
| Battery Life | Up to 5 Days | Up to 7 Days |
| Rechargable Battery | Yes | Yes |
| Battery Type | Lithium Polymer | Lithium Polymer |
| Battery Capacity | -- | 230 mAh |
| Charge Time | 2 hours | 2 hours |
| Charger Type | Magnetic Pin Charger | Magnetic Charger |
| Wireless Charging | No | No |
| Fast Charging | No | No |
| Standby Time | -- | Up to 30 Days |
| ❤️ Health & Sensors | ||
| Sensor | Accelerometer, Optical Heart Rate Sensor, SpO2 Sensor | Accelerometer, Optical Heart Rate Sensor, SpO2 Sensor |
| Heart Rate Monitor | Yes | Yes |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| GPS | No | No |
| Compass | No | No |
| Altimeter | No | No |
| Blood Oxygen (SpO2) | Yes | Yes |
| ECG | No | No |
| Blood Pressure Monitor | No | No |
| Skin Temperature Sensor | No | No |
| Sleep Tracking | Yes | Yes |
| Stress Monitoring | Yes | No |
| Respiratory Rate | No | No |
| Women's Health / Cycle Tracking | Yes | No |
| Sports Modes | 100+ | 700+ |
| VO2 Max | No | No |
| Fall Detection | No | No |
| Crash Detection | No | No |
| Emergency SOS | No | No |
| Other Fitness Features | Sedentary Reminder, Hydration Reminder, Breathing Exercise | Sleep Tracking, Sedentary Reminder, Breathing Exercise |
| 💡 Smart Features | ||
| Call Function | Bluetooth Calling | Bluetooth Calling |
| Call Features | Dial Pad, Call History, Sync Contacts, Reject Call | Dial Pad, Call History, Contact Sync |
| Messaging Support | Yes | No |
| Email Support | No | No |
| Notification | Yes | Yes |
| Notification Type | Vibration, Ring | Calls, SMS, Social Media Apps |
| Voice Control | Yes | Yes |
| Gesture Control | No | Wrist Raise to Wake |
| Third Party App Support | No | No |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| NFC | No | No |
| eSIM / Cellular | No | No |
| Music Control | Yes | Yes |
| Companion App | Fastrack Smart World | boAt Crest App |
| Watch Faces | 100+ | 100+ |
| Other Watch Functions | Timer, Stopwatch, Weather, Find My Phone, AI Voice Assistant | Stopwatch, Timer, Weather, Music Control, Find My Phone, Remote Camera |
| ⚡ Performance | ||
| Operating System | -- | Proprietary OS |
| Compatible Operating System | Android, iOS | Android, iOS |
| RAM | 128 MB | -- |
| Expandable Memory | No | No |
| 🎧 Calling & Audio | ||
| Microphone | Yes | Yes |
| Speaker | Yes | Yes |
| Audio Features | Music Control | -- |
| 📡 Connectivity | ||
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.0 |
| Wi-Fi | No | No |
| Compatible Device | Smartphones | Android, iOS |
| Operating Range | 10 m | 10 m |
| 📝 Additional Information | ||
| Usage | Fitness, Lifestyle | Fitness, Casual |
| Language | English | English |
| Chronograph | No | No |
| Warranty | 1 Year | 1 Year |
| Watch Type | Smartwatch | Smartwatch |
| Other Features | Calculator, In-built Games | Built-in Games, Flashlight |
| 💰 Price | ||
| Best Price | ₹5,499 | ₹1,599 ★ |
| Discount | 31% OFF | 78% OFF |
| Buy | Buy Now | Buy Now |
Our Recommendation
Vibrant AMOLED daily driver
Fastrack Radiant FX4
Vibrant AMOLED display, single-sync Bluetooth calling, functional crown, and reliable daily activity tracking wrapped in a sporty design.
View Prices →Ultra-affordable entry-level tracker
boAt Wave Sigma
Highly budget-friendly option featuring a large HD display, multiple sports modes, custom ringtones, and basic health tracking.
View Prices →
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❓ FAQ
Compare FAQs
Which is cheaper: Fastrack Radiant FX4 vs boAt Wave Sigma?
Fastrack Radiant FX4 is priced at ₹5,499; boAt Wave Sigma is priced at ₹1,599. boAt Wave Sigma is the cheapest, ₹3,900 less than Fastrack Radiant FX4.
Which has better battery life: Fastrack Radiant FX4 vs boAt Wave Sigma?
Fastrack Radiant FX4: Up to 5 Days; boAt Wave Sigma: Up to 7 Days. boAt Wave Sigma claims the longest battery life.
How do the displays compare: Fastrack Radiant FX4 vs boAt Wave Sigma?
Fastrack Radiant FX4 has a 1.51 inches AMOLED display; boAt Wave Sigma has a 2.01 inches LCD display.
Which of Fastrack Radiant FX4 and boAt Wave Sigma supports calling?
Fastrack Radiant FX4: Bluetooth Calling; boAt Wave Sigma: Bluetooth Calling.
Which is better: Fastrack Radiant FX4 vs boAt Wave Sigma?
Comparing Fastrack Radiant FX4 and boAt Wave Sigma: boAt Wave Sigma is the better pick for the lowest price and the longest battery life; Fastrack Radiant FX4 is the better pick for health and fitness tracking, display quality and software experience.