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

Specification	Fastrack Limitless FS2+ ₹1,599 Prices and availability may change on the seller's site View Price	Noise Colorfit Icon 2 ₹1,499 Prices and availability may change on the seller's site View Price	Fire-Boltt Hunter 51.1mm ₹1,399 Prices and availability may change on the seller's site View Price	Noise Twist Go ₹1,399 Prices and availability may change on the seller's site View Price	boAt Lunar Discovery ₹1,365 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
General
In The Box	Smartwatch, Magnetic Charging Cable, Quick Start Guide, Warranty Card	1x Smartwatch, 1x Magnetic Charging Cable, 1x User Manual, 1x Warranty Card	Smartwatch, USB Charging Cable, User Manual, Warranty Card	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card	1 Smartwatch, 1 USB Magnetic Charging Cable, 1 User Manual, 1 Warranty Card	1 Unit Smartwatch, 1 Unit USB Magnetic Charging Cable, 1 Unit User Manual, 1 Unit Warranty Card
Model Name	Fastrack Limitless FS2+	Colorfit Icon 2	Fire-Boltt Hunter 51.1mm (2.01) HD Display Bluetooth Calling Single Chipset, Metal Body	NoiseFit Twist Go	Lunar Discovery	boAt Lunar Atlas
Launch Date	10/07/2024	17/07/2022	25/05/2023	31/10/2023	25/10/2024	06/02/2026
Colors	Charcoal Black, Wine Red, Copper Teal, Blue, Beige	Jet Black, Silver Grey, Deep Wine, Rose Pink, Midnight Gold, Midnight Blue, Forest Green, Cherry Red	Black, Dark Blue, Light Grey, White, Blue, Silver, Mist Grey	Jet Black, Silver Grey, Rose Pink, Gold Link, Silver Link, Elite Black, Rose Wine	Active Black, Brown, Active Blue, Cherry Blossom, Mint Green, Metal Black	Ranger Black, Phantom Blue
Brand	Fastrack	Noise	FireBoltt	Noise	BoAt	BoAt
Display
Display Size	2.01, 5.1	1.8, 4.57	2.01, 5.1	1.39, 3.53	1.39, 3.53	1.39, 3.5
Resolution	320, 320 pixels	240, 280 pixels	240, 296 pixels	240, 240 pixels	240, 240 pixels	240, 240 pixels
Panel Type	TFT LCD UltraVU Display	LCD	TFT LCD	TFT LCD	TFT LCD (HD Display)	Color HD Display (TFT-LCD)
Touch Type	Capacitive Touchscreen	Capacitive Touchscreen	Capacitive Full Touch Screen (Single Touch)	Full Touch	MultiTouch	Full Capacitive Touch
Always-on Display	No	No	No	No	Not Specified	No
Brightness	Not specified	500 nits	450 nits	Up to 500 nits	Not specified	500 nits
Refresh Rate	Not specified	Not specified	Standard refresh rate (not specified)	60Hz	Not specified	60 Hz
Color Gamut / HDR Support	Standard color gamut, no HDR support	Not specified	Standard color gamut, no HDR support	Not Specified	Not specified	Standard
Screen Protection	Not specified	Not specified	3D Curved Glass, Scratch Resistant	2.5D Glass	Not specified	Flat Toughened Glass
Body
Dimensions	Not Specified	44.5 x 36.5 x 11 mm	51.3mm (Diameter) x 9.8mm (Thickness)	Round Dial, approx. 46mm diameter (exact mm not specified)	44.0 x 45.9 x 12.3 mm	264.9 x 48.6 x 12.9 mm
Weight	48 grams	53.5 grams	36.8 grams	Approx. 40g - 45g	45 g	Not Specified
Case Material	Polycarbonate	Zinc alloy and Polycarbonate	ABS + PC Zinc Alloy with Vacuum Plating (Metal Finish)	Metallic Finish (Zinc Alloy) with Polycarbonate back	Aluminum Alloy middle frame with plastic bottom	Rugged Metallic Alloy Middle Frame with Plastic Bottom
Front Protection	Not specified	Not specified	3D Curved Glass (Scratch Resistant)	2.5D Curved Glass	Standard glass	Toughened Flat Glass
Strap / Bracelet Options	Silicone	Silicone strap	Silicone (Removable and Replaceable)	22mm Silicone, Metallic Link, or Mesh options	Silicon and Metal straps available	22mm Silicone Strap
Removable / Replaceable Strap	No	Yes	Yes	Yes	Yes	Yes
Water Resistance	IP68 (1.5m water resistance)	IP67	IP67 - Can withstand submersion up to 1 meter for 30 minutes	IP67 Water Resistant	IP67	IP68 water resistant up to 1.5m for 10 minutes
Dust Resistance	Yes, dust proof (IP68 certified)	IP67	IP67 rated	IP67 Dust Resistant	IP67	Dust proof
Durability Certifications	IP68 certified	None mentioned	IP67 certification, Scratch resistant	Not Specified	Not Specified	IP68 Certified
Primary Controls	Functional Crown (touch-sensitive), Touchscreen	Touch Screen, 1x Side Button (Power/Wake)	Touchscreen + Single Physical Button	Touch Screen, Functional Rotating Crown	Touch screen + Functional rotary crown (side button)	Touch Screen, Functional Rotating Crown, Side Buttons
Processor
Operating System	Android, iOS compatible	Proprietary OS	Proprietary OS (Compatible with Android v5.0+ and iOS)	Noise OS (RTOS)	Crest+ OS	Proprietary RTOS
Chipset / SoC	Not Specified	Not specified	Single Chip Architecture (not detailed)	Single-chip Tru Sync™ Technology	Not specified	Not Specified
CPU Cores & Clock Speed	Not Specified	Not specified	Not specified	Not Specified	Not specified	Not Specified (Optimized for low power)
GPU	Not specified	Not specified	Not specified	Not Specified	Not specified	—
Health & Fitness Sensors
Heart Rate Monitor	24x7 Heart Rate Monitoring	Yes (Optical PPG sensor)	Yes (HX3600 / HRS3600 Optical PPG Sensor)	24/7 Heart Rate Monitor	Yes (Optical PPG sensor)	Continuous Optical Heart Rate Monitoring
ECG	No ECG support	No	No ECG support	No	No	Not Available
SpO₂ / Blood Oxygen	SpO2 / Blood Oxygen Monitor with continuous monitoring	Yes	Yes (Blood Oxygen Monitor)	SpO2 Monitoring	Yes	SpO2 Blood Oxygen Monitoring
Skin Temperature Sensor	Not mentioned	No	No Skin Temperature Sensor	No	No	Not Available
Sleep Tracking	Sleep Tracker with sleep quality analysis	Yes	Yes (Sleep Monitor)	Sleep Monitor with Stages	Yes (monitors sleep quality, hours slept)	Sleep Stage Tracking (Light, Deep, REM)
Step Counter	Pedometer / Step Counter	Yes	Yes (Pedometer)	Yes	Yes (Pedometer with daily step count)	Integrated Pedometer
GPS	Connected GPS (via smartphone only)	No (Connected GPS via smartphone)	Yes (Built-in GPS)	No (Connected GPS)	Connected GPS	App-Powered GPS Tracking (Connected via Phone)
Accelerometer	Yes, Accelerometer sensor	Yes	Yes (3-Axis Accelerometer)	Yes	Yes (G-sensor)	Tri-axial Accelerometer
Gyroscope	Not specified	Not specified	Gyroscope mentioned in some sources but not confirmed	No	Yes	Not Available
Barometer	Not specified	Not specified	Yes (Barometer sensor mentioned)	No	No	Not Available
Compass	Not specified	Not specified	Compass functionality not clearly specified	No	No	Not Available
Other Sensors	Stress Monitor, Menstrual Cycle Tracker, Women's Health Tracking	Stress monitor, Breathing exercise tracking	Sedentary Reminders, Breathing Monitor, Voice Assistance, Calorie Counter, Physiological Cycle Reminder	Stress Monitor, Breathe Practice, Female Cycle Tracker	Stress Monitor, Energy Score tracking	Stress Monitoring, Female Cycle Tracking
Connectivity
Wi-Fi	No Wi-Fi support	No	No Wi-Fi	No	No	No Wi-Fi support
Bluetooth	Bluetooth 5.3	5.1	Bluetooth v5.0	Bluetooth v5.3	Bluetooth 5.3	Bluetooth version 5.4
NFC	No	No	No	No	Yes	No
Cellular Connectivity	Bluetooth calling only (SingleSync), no standalone cellular	No	Wi-Fi Only (via paired smartphone)	No	No	None
ANT+	Not Specified	No	No	No	No	No
Battery
Capacity	280 mAh Lithium Polymer	260 mAh	280-300 mAh (sources vary)	210 mAh	260 mAh (Lithium Polymer)	410 mAh
Fast Charging Support	Yes - NitroFast Charging (10 min for 1 day use)	No	No Fast Charging	No	Yes	Full charge in approximately 50 minutes
Estimated Runtime	Up to 7 days typical use, 10+ days standby	4-7 days	Typical: 5-7 days \| With Bluetooth Calling: 2-3 days \| Standby: 15 days (360 hours)	Up to 7 Days (Typical), 2 Days (Calling)	Up to 7 days	7-10 days typical; 2-3 days calling
Charging Method	Magnetic charging connector	Magnetic charging cable	USB Magnetic Charging Points (Wired)	Magnetic Charging	Magnetic charging cable	USB Magnetic 2-pin Pogo Cable
Battery Saver Modes	Not mentioned	Not specified	Yes (Battery Saver Mode available)	Power Saving Mode	DND mode, various power saving settings	Automatic trigger at 10% battery
Memory & Storage
RAM	Not officially specified	Not specified	Not specified (watch operates on proprietary OS)	Not Specified	Not Specified	Not Specified
Internal Storage	Not officially specified	Not specified	Not specified	Stores call logs and up to 10 contacts	Not Specified	Flash memory for health data and contacts
Expandable Storage	Not applicable	No	Not applicable	No	Not Specified	No
Design & Comfort
Bezel Type	Fixed, minimal bezel	Fixed bezel	Fixed Bezel (Non-rotating)	Fixed Metallic Bezel	Fixed bezel	Fixed Rugged Bezel
Buttons / Crown	Functional Crown (touch and pressure sensitive)	1x Side Button for power on/off and wake functions	Single Physical Button	2 (Side Button + Rotating Crown)	1 functional crown/button	Functional Rotating Crown and 2 Physical Buttons
Vibration Motor	Yes, haptic feedback vibration motor	Yes	Yes (Haptic Vibration Motor)	Yes	Yes	Haptic Vibration Motor
Screen Glass Type	Not specified	Not specified	3D Curved Glass	2.5D Curved Glass	Not specified	Flat Toughened Glass
Health & Safety Features
Fall Detection / SOS Calling	Emergency SOS capability available	No	No Fall Detection or SOS Calling	No	Emergency SOS feature (press and hold to alert contacts)	SOS emergency calling via phone
Menstrual Cycle / Health Tracking	Women's Health Tracking with menstrual cycle tracking	Yes	Yes (Physiological Cycle Reminder)	Female Cycle Tracker	Not available	Female Wellness Tracking via App
Noise Monitoring	Not mentioned	No	No Noise Monitoring	No	No	Not Available
Guided Breathing / Mindfulness Features	Breathe Exercise feature	Yes (Breathing exercises, Stress measurement)	Yes (Breathe Monitor, Relaxation App)	Breathe Practice	Yes (Breathe Training Mode / Relax Mode)	Guided Breathing / Relax Mode
Audio & Voice
Built-in Speaker	Yes, built-in speaker	Yes	Yes (Dedicated HD Speaker)	Yes	Yes (HD speaker)	Built-in speaker for Bluetooth calls
Microphone	Yes, high-quality microphone	Yes	Yes (Built-in Microphone for Bluetooth Calling)	Yes	Yes (Built-in HD microphone)	Built-in microphone with ENx Noise Suppression
Voice Assistant	Yes, AI Voice Assistant (compatible with Alexa)	Yes	Yes (AI Voice Assistant, Google Assistant & Siri Compatible)	AI Voice Assistant (Siri/Google)	Yes	Siri and Google Assistant supported
Bluetooth Audio Output	Yes, via Bluetooth headphones	No	Yes (Bluetooth Audio Output via connected phone)	No	Yes	Audio via watch speaker
Notifications & Controls
Notification Support	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Yes	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Call, SMS, Social Media, Email	Call Alerts, SMS/Messaging Alerts, App Notifications	Alerts for calls, SMS, and app notifications
Quick Reply Options	Predefined Quick Replies (Android only)	Predefined messages	Predefined Messages and Voice Reply	Quick Reply (Android Only)	Predefined quick replies available	Predefined quick reply for calls (Android only)
Music Control / Playback	Full music control: Play/Pause, Volume, Previous/Next, Streaming control	Remote music control (Play/Pause, Volume, Track control)	Yes (Play/Pause, Volume Control, Next/Previous Track)	Remote Music Control	Yes (Play/Pause, Volume Control, Track navigation)	Remote music control for phone
Find My Phone	Yes, Find My Phone feature	Yes	Yes (Find My Phone Feature)	Yes	Yes	Available via Bluetooth
Remote Camera Shutter	Yes, Camera Control feature	Yes	Yes (Remote Camera Control)	Yes	Yes	Remote shutter control for phone
Security
Fingerprint Sensor	Not Specified	No	No	No	No	No
Face Unlock	Not Specified	No	No	No	No	No
NFC Payment Security	No NFC support	No	No NFC, No Payment Security	No	No	Not Available
Find My Watch	Not explicitly mentioned	Yes (via NoiseFit companion app)	Yes (Find My Watch Feature)	Yes (via App)	Yes (via app)	Available via boAt Crest App
Ports & Accessories
Charging Connector Type	Magnetic charging connector (proprietary)	Magnetic charging pins	USB Magnetic Charging Points	Magnetic Pogo Pin	Magnetic USB charging cable	Magnetic Pogo Pin
Optional Docks / Stands	None mentioned	Not specified	Not specified	None	Not included	Not Available
Bundled Extras	Quick Start Guide, Warranty Card, Magnetic Charging Cable	Not Specified	Smartwatch, USB Charging Cable, User Manual, Warranty Card	Charging Cable, User Manual	Magnetic charging cable, User manual, Warranty QR card	1 Magnetic Charging Cable
Software & Apps
App Store Availability	Fastrack Smart World App (Google Play compatible)	No	Limited third-party app support (proprietary ecosystem)	No	Not Supported	No standalone app store
Customization Options	200+ Watchfaces, Multiple Menu Styles, Custom Watch Face Creation, 110+ Sports Modes, In-Built Games, Calculator	100+ cloud-based watch faces	130+ Cloud Watch Faces, Customizable Quick View Widgets, Multiple Theme Options	100+ Cloud Watch Faces	DIY Watch Face Studio (custom watch faces), 700+ active/sports modes	100+ Cloud Watch Faces, Customizable Watch Face Studio
Companion App	Fastrack Smart World App (formerly Fastrack Reflex World App)	NoiseFit (for iOS) / NoiseFit Track (for Android)	Fire-Boltt Health App (Android & iOS)	NoiseFit App	boAt Crest App (Android 7.0+, iOS 14.0+)	boAt Crest App
OTA Updates	Yes, over-the-air updates available	Yes	Yes (Over-the-Air Updates Available)	Yes	Yes (via companion app)	Firmware updates via App
Pre-installed Apps	110+ Sports Modes, 200+ Watchfaces, In-Built Games, AI Voice Assistant, Calculator, Alarm Clock, Stopwatch, Timer, Stress Monitor	60 sports modes, In-built games, Productivity Suite (Timer, Stopwatch, Alarm, Weather, Calendar)	120+ Sports Modes, Heart Rate Monitor, Sleep Tracker, SpO2 Monitor, Weather App, Alarm, Stopwatch, Timer, Calculator, Camera Control, Music Player, AI Voice Assistant, Menstrual Cycle Tracker, Google Fit Integration	Alarm, Stopwatch, Timer, Weather, Calculator, World Clock	Turn-by-Turn Navigation (MapMyIndia), QR Tray, Emergency SOS, Weather, Alarm, Timer, Stopwatch, Games	100+ Sports Modes, QR Tray, Weather, Calculator, Games