Compare Products Side-by-Side

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	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	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card
Model Name	Noise Junior Champ 3	Fire-Boltt Axiom	Crown R Pro	NoiseFit Twist
Launch Date	30/09/2025	15/09/2025	18/06/2023	12/01/2023
Colors	Black Blaze, Astro Orbit, Cotton Cloud, Arctic Storm	Black, Silver, Orange, Gold	Frozen Silver, Thunder Black, Volcanic Orange	Jet Black, Silver Grey, Rose Wine, Rose Pink, Space Blue
Brand	Noise	FireBoltt	GoBoult	Noise
Display
Display Size	1.4, 3.55	1.43, 3.63	1.43, 3.63	1.38, 3.5
Resolution	240, 240 pixels	466, 466 pixels	466, 466 pixels	240, 240 pixels
Panel Type	IPS LCD	AMOLED	Super AMOLED	TFT LCD with 246 PPI pixel density
Touch Type	Capacitive Touchscreen	Full Capacitive Touch	Full Touch	Multi-touch capacitive touchscreen
Always-on Display	No	Yes	Yes	No
Brightness	5-level adjustable brightness	1000 nits (Peak)	600 nits	550 nits peak brightness
Refresh Rate	Not Specified	60Hz	60 Hz	Standard 60Hz (typical for TFT)
Color Gamut / HDR Support	Not Specified	Not Specified	Not Specified	Standard RGB color gamut
Screen Protection	Not Specified	Flat Curved Glass	2.5D Curved Glass	Not specified
Body
Dimensions	44 x 40 x 13 mm	Standard 46mm dial size	46 x 46 x 11 mm (Approx)	45.7 x 52.2 x 11.9 mm
Weight	31 grams	60 g	56.5 g	27.6 grams
Case Material	Acrylonitrile Butadiene Styrene (ABS) plastic	Stainless Steel / Metal Alloy	Zinc Alloy Frame	PC+ABS plastic with metal unibody appearance
Front Protection	Not Specified	Curved Glass	Glass	Not specified
Strap / Bracelet Options	Hypoallergenic silicone strap	Silicone, Stainless Steel (variant dependent)	Silicone, Metallic (variant dependent)	22mm silicone with quick-release mechanism
Removable / Replaceable Strap	Not Specified	Yes	Yes	Yes
Water Resistance	1 ATM (Up to 10m depth splash resistance)	IP68 Water Resistant	IP67 Water Resistant	IP68 - Water resistant to 1.5m depth
Dust Resistance	Not Specified	IP68 Dust Resistant	IP67 Dust Resistant	IP68 - Dust resistant
Durability Certifications	IP Certified	Not Specified	None	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 with gesture controls and wake-up gesture
Processor
Operating System	Proprietary Kids Smartwatch OS	Proprietary RTOS	Boult OS (RTOS)	Proprietary Real-Time Operating System (RTOS)
Chipset / SoC	Not Specified	Single Core Digital Chipset	Single-chip 2-in-1 Bluetooth SoC	Not publicly disclosed
CPU Cores & Clock Speed	Not Specified	Single Core	Not Specified	Not specified
GPU	—	Integrated	Not Specified	Not specified
Health & Fitness Sensors
Heart Rate Monitor	Optical heart rate sensor	Optical PPG Sensor	24/7 Heart Rate Monitor	Yes - 24/7 continuous optical PPG monitoring
ECG	Not Supported	No	No	Not available
SpO₂ / Blood Oxygen	SpO2 Blood Oxygen sensor	Yes	SpO2 Sensor	Yes - Blood oxygen saturation monitoring
Skin Temperature Sensor	Not Supported	No	No	Not available
Sleep Tracking	Monitors sleep duration and quality	Yes (Light, Deep, REM)	Sleep Monitor (Light, Deep, REM)	Yes - Automatic sleep detection with stage analysis
Step Counter	Built-in pedometer	Yes	Yes	Yes - Pedometer with step tracking
GPS	No built-in GPS tracking	No (Connected GPS only)	Connected GPS	Not available - Bluetooth only
Accelerometer	3-axis accelerometer	Yes	Yes	Yes - Motion detection
Gyroscope	Not Specified	Not Specified	Not Specified	Yes - Rotation sensing
Barometer	Not Supported	No	No	Not available
Compass	Not Supported	No	No	Not available
Other Sensors	Step counter, Calorie tracker, Distance tracker	Sedentary Reminder, Hydration Reminder	Blood Pressure (Simulated), Menstrual Cycle Tracker, Breath Training	Stress monitor, activity tracking, calorie counter, female cycle tracker
Connectivity
Wi-Fi	Not Supported	No	No	Not available
Bluetooth	Bluetooth v5.3	Bluetooth 5.0	Bluetooth 5.2	Bluetooth 5.3 with Tru Sync technology
NFC	No	No	No	No
Cellular Connectivity	No Cellular/SIM support	No	No	None - Bluetooth only
ANT+	No	No	No	No
Battery
Capacity	270 mAh	300 mAh	Not Specified (Approx 250-300mAh)	300 mAh lithium-ion
Fast Charging Support	Not Specified	No	No	Not available
Estimated Runtime	Up to 3 to 5 days on typical use	Up to 7 Days (Typical)	Up to 5 Days (Typical)	7 days typical use, 25 days standby, 2 days with heavy BT calling
Charging Method	Magnetic Pogo Pin	Wireless Magnetic Dock	Magnetic Charging	Proprietary magnetic pogo pins connector
Battery Saver Modes	Scheduled Power Off	Power Saver Mode	Yes	Brightness reduction, disable 24/7 HR monitoring, low power mode
Memory & Storage
RAM	Not Specified	System RAM only	Not Specified	Not specified
Internal Storage	Not Specified	No user accessible storage	Not Specified	Limited (cloud-based watch faces only)
Expandable Storage	No	No	No	Not available
Design & Comfort
Bezel Type	Fixed bezel with switchable poppy bumpers	Fixed with Rotating Crown	Fixed	Fixed circular bezel with flat surface design
Buttons / Crown	Single physical side button	1 Rotating Crown, 1 Push Button	Rotating Crown + 1 Button	No physical buttons - Touch controls only
Vibration Motor	Built-in vibration for alerts	Yes	Yes	Yes - Linear haptic motor for haptic feedback
Screen Glass Type	Not Specified	Glass	2.5D Glass	Standard protective glass (not specified)
Health & Safety Features
Fall Detection / SOS Calling	On-device SOS button and manual emergency contact storage	No	No	Not available
Menstrual Cycle / Health Tracking	Not Supported	Yes (Female Health Tracking)	Female Health Tracker	Yes - Female health tracking with cycle prediction
Noise Monitoring	No	No	No	Not available
Guided Breathing / Mindfulness Features	Not Specified	Breathing Exercises	Breath Training	Yes - Breathe Practice guided breathing exercises
Audio & Voice
Built-in Speaker	Built-in speaker for alerts and learning audio	Yes	Yes	Yes - For Bluetooth calling
Microphone	Built-in microphone for voice notes	Yes	Yes	Yes - For Bluetooth calling
Voice Assistant	No	AI Voice Assistant (Siri/Google via Phone)	Yes (AI Voice Assistant)	Not available
Bluetooth Audio Output	No	Phone Calls Only	No	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	Yes - Call alerts, SMS alerts, app notifications with preview
Quick Reply Options	Not Specified	No	No	Yes - Predefined quick reply messages only
Music Control / Playback	Remote music control for paired smartphone	Music Control (Remote)	Music Control (Phone)	Yes - Remote phone music control (play/pause, volume, track skip)
Find My Phone	Yes	Yes	Yes	Yes - Locate paired smartphone
Remote Camera Shutter	Yes	Yes	Yes	Yes - Remote camera trigger for photos
Security
Fingerprint Sensor	No	No	No	No
Face Unlock	No	No	No	No
NFC Payment Security	No	No	No	Not available
Find My Watch	Yes, via Noise Junior App	Yes (via App)	Yes (via App)	Not available
Ports & Accessories
Charging Connector Type	Magnetic Pogo Pin	Wireless Charging Dock	Magnetic Pogo Pin	Proprietary magnetic pogo pins connector
Optional Docks / Stands	Not Specified	None	None	None mentioned
Bundled Extras	1 Smartwatch, 1 Magnetic Charger, 2 Extra Switchable Bumpers, User Manual, Warranty Card	Charging Cable, Manual	Charging Cable, User Manual	Magnetic charging cable, user manual, warranty card
Software & Apps
App Store Availability	No proprietary watch app store	No	None	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-based watch faces with customization through NoiseFit app
Companion App	Noise Junior App	Fire-Boltt App / Da Fit	Boult Fit (GoBoult Fit)	NoiseFit App - Health tracking, notifications, watch face management
OTA Updates	Supports over-the-air firmware updates	Yes	Yes	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	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