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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	Noise Twist Round dial ₹1,599 Prices and availability may change on the seller's site View Price	Noise Twist Go ₹1,599 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
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	Smartwatch, Magnetic Charging Cable, Quick Start Guide, Warranty Card
Model Name	Noise Junior Champ 3	Fire-Boltt Axiom	NoiseFit Twist	NoiseFit Twist Go	Fastrack Limitless FS2+
Launch Date	30/09/2025	15/09/2025	12/01/2023	31/10/2023	10/07/2024
Colors	Black Blaze, Astro Orbit, Cotton Cloud, Arctic Storm	Black, Silver, Orange, Gold	Jet Black, Silver Grey, Rose Wine, Rose Pink, Space Blue	Jet Black, Silver Grey, Rose Pink, Gold Link, Silver Link, Elite Black, Rose Wine	Charcoal Black, Wine Red, Copper Teal, Blue, Beige
Brand	Noise	FireBoltt	Noise	Noise	Fastrack
Display
Display Size	1.4, 3.55	1.43, 3.63	1.38, 3.5	1.39, 3.53	2.01, 5.1
Resolution	240, 240 pixels	466, 466 pixels	240, 240 pixels	240, 240 pixels	320, 320 pixels
Panel Type	IPS LCD	AMOLED	TFT LCD with 246 PPI pixel density	TFT LCD	TFT LCD UltraVU Display
Touch Type	Capacitive Touchscreen	Full Capacitive Touch	Multi-touch capacitive touchscreen	Full Touch	Capacitive Touchscreen
Always-on Display	No	Yes	No	No	No
Brightness	5-level adjustable brightness	1000 nits (Peak)	550 nits peak brightness	Up to 500 nits	Not specified
Refresh Rate	Not Specified	60Hz	Standard 60Hz (typical for TFT)	60Hz	Not specified
Color Gamut / HDR Support	Not Specified	Not Specified	Standard RGB color gamut	Not Specified	Standard color gamut, no HDR support
Screen Protection	Not Specified	Flat Curved Glass	Not specified	2.5D Glass	Not specified
Body
Dimensions	44 x 40 x 13 mm	Standard 46mm dial size	45.7 x 52.2 x 11.9 mm	Round Dial, approx. 46mm diameter (exact mm not specified)	Not Specified
Weight	31 grams	60 g	27.6 grams	Approx. 40g - 45g	48 grams
Case Material	Acrylonitrile Butadiene Styrene (ABS) plastic	Stainless Steel / Metal Alloy	PC+ABS plastic with metal unibody appearance	Metallic Finish (Zinc Alloy) with Polycarbonate back	Polycarbonate
Front Protection	Not Specified	Curved Glass	Not specified	2.5D Curved Glass	Not specified
Strap / Bracelet Options	Hypoallergenic silicone strap	Silicone, Stainless Steel (variant dependent)	22mm silicone with quick-release mechanism	22mm Silicone, Metallic Link, or Mesh options	Silicone
Removable / Replaceable Strap	Not Specified	Yes	Yes	Yes	No
Water Resistance	1 ATM (Up to 10m depth splash resistance)	IP68 Water Resistant	IP68 - Water resistant to 1.5m depth	IP67 Water Resistant	IP68 (1.5m water resistance)
Dust Resistance	Not Specified	IP68 Dust Resistant	IP68 - Dust resistant	IP67 Dust Resistant	Yes, dust proof (IP68 certified)
Durability Certifications	IP Certified	Not Specified	IP68 certified	Not Specified	IP68 certified
Primary Controls	Touch screen and single physical side button	Rotating Crown, Touch Screen, Push Button	Touch screen with gesture controls and wake-up gesture	Touch Screen, Functional Rotating Crown	Functional Crown (touch-sensitive), Touchscreen
Processor
Operating System	Proprietary Kids Smartwatch OS	Proprietary RTOS	Proprietary Real-Time Operating System (RTOS)	Noise OS (RTOS)	Android, iOS compatible
Chipset / SoC	Not Specified	Single Core Digital Chipset	Not publicly disclosed	Single-chip Tru Sync™ Technology	Not Specified
CPU Cores & Clock Speed	Not Specified	Single Core	Not specified	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	Yes - 24/7 continuous optical PPG monitoring	24/7 Heart Rate Monitor	24x7 Heart Rate Monitoring
ECG	Not Supported	No	Not available	No	No ECG support
SpO₂ / Blood Oxygen	SpO2 Blood Oxygen sensor	Yes	Yes - Blood oxygen saturation monitoring	SpO2 Monitoring	SpO2 / Blood Oxygen Monitor with continuous monitoring
Skin Temperature Sensor	Not Supported	No	Not available	No	Not mentioned
Sleep Tracking	Monitors sleep duration and quality	Yes (Light, Deep, REM)	Yes - Automatic sleep detection with stage analysis	Sleep Monitor with Stages	Sleep Tracker with sleep quality analysis
Step Counter	Built-in pedometer	Yes	Yes - Pedometer with step tracking	Yes	Pedometer / Step Counter
GPS	No built-in GPS tracking	No (Connected GPS only)	Not available - Bluetooth only	No (Connected GPS)	Connected GPS (via smartphone only)
Accelerometer	3-axis accelerometer	Yes	Yes - Motion detection	Yes	Yes, Accelerometer sensor
Gyroscope	Not Specified	Not Specified	Yes - Rotation sensing	No	Not specified
Barometer	Not Supported	No	Not available	No	Not specified
Compass	Not Supported	No	Not available	No	Not specified
Other Sensors	Step counter, Calorie tracker, Distance tracker	Sedentary Reminder, Hydration Reminder	Stress monitor, activity tracking, calorie counter, female cycle tracker	Stress Monitor, Breathe Practice, Female Cycle Tracker	Stress Monitor, Menstrual Cycle Tracker, Women's Health Tracking
Connectivity
Wi-Fi	Not Supported	No	Not available	No	No Wi-Fi support
Bluetooth	Bluetooth v5.3	Bluetooth 5.0	Bluetooth 5.3 with Tru Sync technology	Bluetooth v5.3	Bluetooth 5.3
NFC	No	No	No	No	No
Cellular Connectivity	No Cellular/SIM support	No	None - Bluetooth only	No	Bluetooth calling only (SingleSync), no standalone cellular
ANT+	No	No	No	No	Not Specified
Battery
Capacity	270 mAh	300 mAh	300 mAh lithium-ion	210 mAh	280 mAh Lithium Polymer
Fast Charging Support	Not Specified	No	Not available	No	Yes - NitroFast Charging (10 min for 1 day use)
Estimated Runtime	Up to 3 to 5 days on typical use	Up to 7 Days (Typical)	7 days typical use, 25 days standby, 2 days with heavy BT calling	Up to 7 Days (Typical), 2 Days (Calling)	Up to 7 days typical use, 10+ days standby
Charging Method	Magnetic Pogo Pin	Wireless Magnetic Dock	Proprietary magnetic pogo pins connector	Magnetic Charging	Magnetic charging connector
Battery Saver Modes	Scheduled Power Off	Power Saver Mode	Brightness reduction, disable 24/7 HR monitoring, low power mode	Power Saving Mode	Not mentioned
Memory & Storage
RAM	Not Specified	System RAM only	Not specified	Not Specified	Not officially specified
Internal Storage	Not Specified	No user accessible storage	Limited (cloud-based watch faces only)	Stores call logs and up to 10 contacts	Not officially specified
Expandable Storage	No	No	Not available	No	Not applicable
Design & Comfort
Bezel Type	Fixed bezel with switchable poppy bumpers	Fixed with Rotating Crown	Fixed circular bezel with flat surface design	Fixed Metallic Bezel	Fixed, minimal bezel
Buttons / Crown	Single physical side button	1 Rotating Crown, 1 Push Button	No physical buttons - Touch controls only	2 (Side Button + Rotating Crown)	Functional Crown (touch and pressure sensitive)
Vibration Motor	Built-in vibration for alerts	Yes	Yes - Linear haptic motor for haptic feedback	Yes	Yes, haptic feedback vibration motor
Screen Glass Type	Not Specified	Glass	Standard protective glass (not specified)	2.5D Curved Glass	Not specified
Health & Safety Features
Fall Detection / SOS Calling	On-device SOS button and manual emergency contact storage	No	Not available	No	Emergency SOS capability available
Menstrual Cycle / Health Tracking	Not Supported	Yes (Female Health Tracking)	Yes - Female health tracking with cycle prediction	Female Cycle Tracker	Women's Health Tracking with menstrual cycle tracking
Noise Monitoring	No	No	Not available	No	Not mentioned
Guided Breathing / Mindfulness Features	Not Specified	Breathing Exercises	Yes - Breathe Practice guided breathing exercises	Breathe Practice	Breathe Exercise feature
Audio & Voice
Built-in Speaker	Built-in speaker for alerts and learning audio	Yes	Yes - For Bluetooth calling	Yes	Yes, built-in speaker
Microphone	Built-in microphone for voice notes	Yes	Yes - For Bluetooth calling	Yes	Yes, high-quality microphone
Voice Assistant	No	AI Voice Assistant (Siri/Google via Phone)	Not available	AI Voice Assistant (Siri/Google)	Yes, AI Voice Assistant (compatible with Alexa)
Bluetooth Audio Output	No	Phone Calls Only	Not available - No music streaming	No	Yes, via Bluetooth headphones
Notifications & Controls
Notification Support	Call alerts, SMS/text alerts, and App notifications	Call, SMS, WhatsApp, Social Media	Yes - Call alerts, SMS alerts, app notifications with preview	Call, SMS, Social Media, Email	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts
Quick Reply Options	Not Specified	No	Yes - Predefined quick reply messages only	Quick Reply (Android Only)	Predefined Quick Replies (Android only)
Music Control / Playback	Remote music control for paired smartphone	Music Control (Remote)	Yes - Remote phone music control (play/pause, volume, track skip)	Remote Music Control	Full music control: Play/Pause, Volume, Previous/Next, Streaming control
Find My Phone	Yes	Yes	Yes - Locate paired smartphone	Yes	Yes, Find My Phone feature
Remote Camera Shutter	Yes	Yes	Yes - Remote camera trigger for photos	Yes	Yes, Camera Control feature
Security
Fingerprint Sensor	No	No	No	No	Not Specified
Face Unlock	No	No	No	No	Not Specified
NFC Payment Security	No	No	Not available	No	No NFC support
Find My Watch	Yes, via Noise Junior App	Yes (via App)	Not available	Yes (via App)	Not explicitly mentioned
Ports & Accessories
Charging Connector Type	Magnetic Pogo Pin	Wireless Charging Dock	Proprietary magnetic pogo pins connector	Magnetic Pogo Pin	Magnetic charging connector (proprietary)
Optional Docks / Stands	Not Specified	None	None mentioned	None	None mentioned
Bundled Extras	1 Smartwatch, 1 Magnetic Charger, 2 Extra Switchable Bumpers, User Manual, Warranty Card	Charging Cable, Manual	Magnetic charging cable, user manual, warranty card	Charging Cable, User Manual	Quick Start Guide, Warranty Card, Magnetic Charging Cable
Software & Apps
App Store Availability	No proprietary watch app store	No	Cloud-based proprietary store via NoiseFit app	No	Fastrack Smart World App (Google Play compatible)
Customization Options	100+ Cloud-based watch faces; 3-in-1 look via switchable bumpers	100+ Cloud Watch Faces	100+ cloud-based watch faces with customization through NoiseFit app	100+ Cloud Watch Faces	200+ Watchfaces, Multiple Menu Styles, Custom Watch Face Creation, 110+ Sports Modes, In-Built Games, Calculator
Companion App	Noise Junior App	Fire-Boltt App / Da Fit	NoiseFit App - Health tracking, notifications, watch face management	NoiseFit App	Fastrack Smart World App (formerly Fastrack Reflex World App)
OTA Updates	Supports over-the-air firmware updates	Yes	Yes - OTA firmware updates available	Yes	Yes, over-the-air updates available
Pre-installed Apps	Learning Hub (Games, EduCards, Quizzes), Habit Builder, Smart Scheduler, Alarm, Timer, Stopwatch, Weather	Alarm, Stopwatch, Timer, 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	Alarm, Stopwatch, Timer, Weather, Calculator, World Clock	110+ Sports Modes, 200+ Watchfaces, In-Built Games, AI Voice Assistant, Calculator, Alarm Clock, Stopwatch, Timer, Stress Monitor