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Detailed side-by-side comparison of specifications, features and latest prices in India.

Specification	Noise Junior Champ 3 ₹1,999 Prices and availability may change on the seller's site View Price	Fire-Boltt Axiom ₹1,999 Prices and availability may change on the seller's site View Price	Boult Crown R Pro ₹2,399 Prices and availability may change on the seller's site View Price	boAt Lunar Atlas,GPS Tracking,1.39″ Display,Rugged Body,Functional Crown Smartwatch ₹1,899 Prices and availability may change on the seller's site View Price	Fastrack Limitless FS2+ ₹1,599 Prices and availability may change on the seller's site View Price	Noise Twist Round dial ₹1,599 Prices and availability may change on the seller's site View Price
General
In The Box	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card	Smartwatch, Wireless Charging Dock, User Manual, Warranty Card	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card	1 Unit Smartwatch, 1 Unit USB Magnetic Charging Cable, 1 Unit User Manual, 1 Unit Warranty Card	Smartwatch, Magnetic Charging Cable, Quick Start Guide, Warranty Card	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card
Model Name	Noise Junior Champ 3	Fire-Boltt Axiom	Crown R Pro	boAt Lunar Atlas	Fastrack Limitless FS2+	NoiseFit Twist
Launch Date	30/09/2025	15/09/2025	18/06/2023	06/02/2026	10/07/2024	12/01/2023
Colors	Black Blaze, Astro Orbit, Cotton Cloud, Arctic Storm	Black, Silver, Orange, Gold	Frozen Silver, Thunder Black, Volcanic Orange	Ranger Black, Phantom Blue	Charcoal Black, Wine Red, Copper Teal, Blue, Beige	Jet Black, Silver Grey, Rose Wine, Rose Pink, Space Blue
Brand	Noise	FireBoltt	GoBoult	BoAt	Fastrack	Noise
Display
Display Size	1.4, 3.55	1.43, 3.63	1.43, 3.63	1.39, 3.5	2.01, 5.1	1.38, 3.5
Resolution	240, 240 pixels	466, 466 pixels	466, 466 pixels	240, 240 pixels	320, 320 pixels	240, 240 pixels
Panel Type	IPS LCD	AMOLED	Super AMOLED	Color HD Display (TFT-LCD)	TFT LCD UltraVU Display	TFT LCD with 246 PPI pixel density
Touch Type	Capacitive Touchscreen	Full Capacitive Touch	Full Touch	Full Capacitive Touch	Capacitive Touchscreen	Multi-touch capacitive touchscreen
Always-on Display	No	Yes	Yes	No	No	No
Brightness	5-level adjustable brightness	1000 nits (Peak)	600 nits	500 nits	Not specified	550 nits peak brightness
Refresh Rate	Not Specified	60Hz	60 Hz	60 Hz	Not specified	Standard 60Hz (typical for TFT)
Color Gamut / HDR Support	Not Specified	Not Specified	Not Specified	Standard	Standard color gamut, no HDR support	Standard RGB color gamut
Screen Protection	Not Specified	Flat Curved Glass	2.5D Curved Glass	Flat Toughened Glass	Not specified	Not specified
Body
Dimensions	44 x 40 x 13 mm	Standard 46mm dial size	46 x 46 x 11 mm (Approx)	264.9 x 48.6 x 12.9 mm	Not Specified	45.7 x 52.2 x 11.9 mm
Weight	31 grams	60 g	56.5 g	Not Specified	48 grams	27.6 grams
Case Material	Acrylonitrile Butadiene Styrene (ABS) plastic	Stainless Steel / Metal Alloy	Zinc Alloy Frame	Rugged Metallic Alloy Middle Frame with Plastic Bottom	Polycarbonate	PC+ABS plastic with metal unibody appearance
Front Protection	Not Specified	Curved Glass	Glass	Toughened Flat Glass	Not specified	Not specified
Strap / Bracelet Options	Hypoallergenic silicone strap	Silicone, Stainless Steel (variant dependent)	Silicone, Metallic (variant dependent)	22mm Silicone Strap	Silicone	22mm silicone with quick-release mechanism
Removable / Replaceable Strap	Not Specified	Yes	Yes	Yes	No	Yes
Water Resistance	1 ATM (Up to 10m depth splash resistance)	IP68 Water Resistant	IP67 Water Resistant	IP68 water resistant up to 1.5m for 10 minutes	IP68 (1.5m water resistance)	IP68 - Water resistant to 1.5m depth
Dust Resistance	Not Specified	IP68 Dust Resistant	IP67 Dust Resistant	Dust proof	Yes, dust proof (IP68 certified)	IP68 - Dust resistant
Durability Certifications	IP Certified	Not Specified	None	IP68 Certified	IP68 certified	IP68 certified
Primary Controls	Touch screen and single physical side button	Rotating Crown, Touch Screen, Push Button	Touch Screen, Functional Crown, Push Button	Touch Screen, Functional Rotating Crown, Side Buttons	Functional Crown (touch-sensitive), Touchscreen	Touch screen with gesture controls and wake-up gesture
Processor
Operating System	Proprietary Kids Smartwatch OS	Proprietary RTOS	Boult OS (RTOS)	Proprietary RTOS	Android, iOS compatible	Proprietary Real-Time Operating System (RTOS)
Chipset / SoC	Not Specified	Single Core Digital Chipset	Single-chip 2-in-1 Bluetooth SoC	Not Specified	Not Specified	Not publicly disclosed
CPU Cores & Clock Speed	Not Specified	Single Core	Not Specified	Not Specified (Optimized for low power)	Not Specified	Not specified
GPU	—	Integrated	Not Specified	—	Not specified	Not specified
Health & Fitness Sensors
Heart Rate Monitor	Optical heart rate sensor	Optical PPG Sensor	24/7 Heart Rate Monitor	Continuous Optical Heart Rate Monitoring	24x7 Heart Rate Monitoring	Yes - 24/7 continuous optical PPG monitoring
ECG	Not Supported	No	No	Not Available	No ECG support	Not available
SpO₂ / Blood Oxygen	SpO2 Blood Oxygen sensor	Yes	SpO2 Sensor	SpO2 Blood Oxygen Monitoring	SpO2 / Blood Oxygen Monitor with continuous monitoring	Yes - Blood oxygen saturation monitoring
Skin Temperature Sensor	Not Supported	No	No	Not Available	Not mentioned	Not available
Sleep Tracking	Monitors sleep duration and quality	Yes (Light, Deep, REM)	Sleep Monitor (Light, Deep, REM)	Sleep Stage Tracking (Light, Deep, REM)	Sleep Tracker with sleep quality analysis	Yes - Automatic sleep detection with stage analysis
Step Counter	Built-in pedometer	Yes	Yes	Integrated Pedometer	Pedometer / Step Counter	Yes - Pedometer with step tracking
GPS	No built-in GPS tracking	No (Connected GPS only)	Connected GPS	App-Powered GPS Tracking (Connected via Phone)	Connected GPS (via smartphone only)	Not available - Bluetooth only
Accelerometer	3-axis accelerometer	Yes	Yes	Tri-axial Accelerometer	Yes, Accelerometer sensor	Yes - Motion detection
Gyroscope	Not Specified	Not Specified	Not Specified	Not Available	Not specified	Yes - Rotation sensing
Barometer	Not Supported	No	No	Not Available	Not specified	Not available
Compass	Not Supported	No	No	Not Available	Not specified	Not available
Other Sensors	Step counter, Calorie tracker, Distance tracker	Sedentary Reminder, Hydration Reminder	Blood Pressure (Simulated), Menstrual Cycle Tracker, Breath Training	Stress Monitoring, Female Cycle Tracking	Stress Monitor, Menstrual Cycle Tracker, Women's Health Tracking	Stress monitor, activity tracking, calorie counter, female cycle tracker
Connectivity
Wi-Fi	Not Supported	No	No	No Wi-Fi support	No Wi-Fi support	Not available
Bluetooth	Bluetooth v5.3	Bluetooth 5.0	Bluetooth 5.2	Bluetooth version 5.4	Bluetooth 5.3	Bluetooth 5.3 with Tru Sync technology
NFC	No	No	No	No	No	No
Cellular Connectivity	No Cellular/SIM support	No	No	None	Bluetooth calling only (SingleSync), no standalone cellular	None - Bluetooth only
ANT+	No	No	No	No	Not Specified	No
Battery
Capacity	270 mAh	300 mAh	Not Specified (Approx 250-300mAh)	410 mAh	280 mAh Lithium Polymer	300 mAh lithium-ion
Fast Charging Support	Not Specified	No	No	Full charge in approximately 50 minutes	Yes - NitroFast Charging (10 min for 1 day use)	Not available
Estimated Runtime	Up to 3 to 5 days on typical use	Up to 7 Days (Typical)	Up to 5 Days (Typical)	7-10 days typical; 2-3 days calling	Up to 7 days typical use, 10+ days standby	7 days typical use, 25 days standby, 2 days with heavy BT calling
Charging Method	Magnetic Pogo Pin	Wireless Magnetic Dock	Magnetic Charging	USB Magnetic 2-pin Pogo Cable	Magnetic charging connector	Proprietary magnetic pogo pins connector
Battery Saver Modes	Scheduled Power Off	Power Saver Mode	Yes	Automatic trigger at 10% battery	Not mentioned	Brightness reduction, disable 24/7 HR monitoring, low power mode
Memory & Storage
RAM	Not Specified	System RAM only	Not Specified	Not Specified	Not officially specified	Not specified
Internal Storage	Not Specified	No user accessible storage	Not Specified	Flash memory for health data and contacts	Not officially specified	Limited (cloud-based watch faces only)
Expandable Storage	No	No	No	No	Not applicable	Not available
Design & Comfort
Bezel Type	Fixed bezel with switchable poppy bumpers	Fixed with Rotating Crown	Fixed	Fixed Rugged Bezel	Fixed, minimal bezel	Fixed circular bezel with flat surface design
Buttons / Crown	Single physical side button	1 Rotating Crown, 1 Push Button	Rotating Crown + 1 Button	Functional Rotating Crown and 2 Physical Buttons	Functional Crown (touch and pressure sensitive)	No physical buttons - Touch controls only
Vibration Motor	Built-in vibration for alerts	Yes	Yes	Haptic Vibration Motor	Yes, haptic feedback vibration motor	Yes - Linear haptic motor for haptic feedback
Screen Glass Type	Not Specified	Glass	2.5D Glass	Flat Toughened Glass	Not specified	Standard protective glass (not specified)
Health & Safety Features
Fall Detection / SOS Calling	On-device SOS button and manual emergency contact storage	No	No	SOS emergency calling via phone	Emergency SOS capability available	Not available
Menstrual Cycle / Health Tracking	Not Supported	Yes (Female Health Tracking)	Female Health Tracker	Female Wellness Tracking via App	Women's Health Tracking with menstrual cycle tracking	Yes - Female health tracking with cycle prediction
Noise Monitoring	No	No	No	Not Available	Not mentioned	Not available
Guided Breathing / Mindfulness Features	Not Specified	Breathing Exercises	Breath Training	Guided Breathing / Relax Mode	Breathe Exercise feature	Yes - Breathe Practice guided breathing exercises
Audio & Voice
Built-in Speaker	Built-in speaker for alerts and learning audio	Yes	Yes	Built-in speaker for Bluetooth calls	Yes, built-in speaker	Yes - For Bluetooth calling
Microphone	Built-in microphone for voice notes	Yes	Yes	Built-in microphone with ENx Noise Suppression	Yes, high-quality microphone	Yes - For Bluetooth calling
Voice Assistant	No	AI Voice Assistant (Siri/Google via Phone)	Yes (AI Voice Assistant)	Siri and Google Assistant supported	Yes, AI Voice Assistant (compatible with Alexa)	Not available
Bluetooth Audio Output	No	Phone Calls Only	No	Audio via watch speaker	Yes, via Bluetooth headphones	Not available - No music streaming
Notifications & Controls
Notification Support	Call alerts, SMS/text alerts, and App notifications	Call, SMS, WhatsApp, Social Media	Call, SMS, App Notifications	Alerts for calls, SMS, and app notifications	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Yes - Call alerts, SMS alerts, app notifications with preview
Quick Reply Options	Not Specified	No	No	Predefined quick reply for calls (Android only)	Predefined Quick Replies (Android only)	Yes - Predefined quick reply messages only
Music Control / Playback	Remote music control for paired smartphone	Music Control (Remote)	Music Control (Phone)	Remote music control for phone	Full music control: Play/Pause, Volume, Previous/Next, Streaming control	Yes - Remote phone music control (play/pause, volume, track skip)
Find My Phone	Yes	Yes	Yes	Available via Bluetooth	Yes, Find My Phone feature	Yes - Locate paired smartphone
Remote Camera Shutter	Yes	Yes	Yes	Remote shutter control for phone	Yes, Camera Control feature	Yes - Remote camera trigger for photos
Security
Fingerprint Sensor	No	No	No	No	Not Specified	No
Face Unlock	No	No	No	No	Not Specified	No
NFC Payment Security	No	No	No	Not Available	No NFC support	Not available
Find My Watch	Yes, via Noise Junior App	Yes (via App)	Yes (via App)	Available via boAt Crest App	Not explicitly mentioned	Not available
Ports & Accessories
Charging Connector Type	Magnetic Pogo Pin	Wireless Charging Dock	Magnetic Pogo Pin	Magnetic Pogo Pin	Magnetic charging connector (proprietary)	Proprietary magnetic pogo pins connector
Optional Docks / Stands	Not Specified	None	None	Not Available	None mentioned	None mentioned
Bundled Extras	1 Smartwatch, 1 Magnetic Charger, 2 Extra Switchable Bumpers, User Manual, Warranty Card	Charging Cable, Manual	Charging Cable, User Manual	1 Magnetic Charging Cable	Quick Start Guide, Warranty Card, Magnetic Charging Cable	Magnetic charging cable, user manual, warranty card
Software & Apps
App Store Availability	No proprietary watch app store	No	None	No standalone app store	Fastrack Smart World App (Google Play compatible)	Cloud-based proprietary store via NoiseFit app
Customization Options	100+ Cloud-based watch faces; 3-in-1 look via switchable bumpers	100+ Cloud Watch Faces	150+ Watch Faces, Menu Styles	100+ Cloud Watch Faces, Customizable Watch Face Studio	200+ Watchfaces, Multiple Menu Styles, Custom Watch Face Creation, 110+ Sports Modes, In-Built Games, Calculator	100+ cloud-based watch faces with customization through NoiseFit app
Companion App	Noise Junior App	Fire-Boltt App / Da Fit	Boult Fit (GoBoult Fit)	boAt Crest App	Fastrack Smart World App (formerly Fastrack Reflex World App)	NoiseFit App - Health tracking, notifications, watch face management
OTA Updates	Supports over-the-air firmware updates	Yes	Yes	Firmware updates via App	Yes, over-the-air updates available	Yes - OTA firmware updates available
Pre-installed Apps	Learning Hub (Games, EduCards, Quizzes), Habit Builder, Smart Scheduler, Alarm, Timer, Stopwatch, Weather	Alarm, Stopwatch, Timer, Weather, Calculator, Games	Alarm, Stopwatch, Weather, Calculator, Games	100+ Sports Modes, QR Tray, Weather, Calculator, Games	110+ Sports Modes, 200+ Watchfaces, In-Built Games, AI Voice Assistant, Calculator, Alarm Clock, Stopwatch, Timer, Stress Monitor	Noise Health Suite, Breathe Practice, Female Health Tracker, Stress Monitor, Sleep Monitor, Activity Tracker, 100+ Sports Modes, Calculator, Weather, Reminders, Alarm, Timer, Stopwatch, World Clock