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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 Twist Round dial ₹1,599 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	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	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card	Smartwatch, USB Charging Cable, User Manual, Warranty Card	1 Unit Smartwatch, 1 Unit USB Magnetic Charging Cable, 1 Unit User Manual, 1 Unit Warranty Card
Model Name	Fastrack Limitless FS2+	NoiseFit Twist	Fire-Boltt Hunter 51.1mm (2.01) HD Display Bluetooth Calling Single Chipset, Metal Body	boAt Lunar Atlas
Launch Date	10/07/2024	12/01/2023	25/05/2023	06/02/2026
Colors	Charcoal Black, Wine Red, Copper Teal, Blue, Beige	Jet Black, Silver Grey, Rose Wine, Rose Pink, Space Blue	Black, Dark Blue, Light Grey, White, Blue, Silver, Mist Grey	Ranger Black, Phantom Blue
Brand	Fastrack	Noise	FireBoltt	BoAt
Display
Display Size	2.01, 5.1	1.38, 3.5	2.01, 5.1	1.39, 3.5
Resolution	320, 320 pixels	240, 240 pixels	240, 296 pixels	240, 240 pixels
Panel Type	TFT LCD UltraVU Display	TFT LCD with 246 PPI pixel density	TFT LCD	Color HD Display (TFT-LCD)
Touch Type	Capacitive Touchscreen	Multi-touch capacitive touchscreen	Capacitive Full Touch Screen (Single Touch)	Full Capacitive Touch
Always-on Display	No	No	No	No
Brightness	Not specified	550 nits peak brightness	450 nits	500 nits
Refresh Rate	Not specified	Standard 60Hz (typical for TFT)	Standard refresh rate (not specified)	60 Hz
Color Gamut / HDR Support	Standard color gamut, no HDR support	Standard RGB color gamut	Standard color gamut, no HDR support	Standard
Screen Protection	Not specified	Not specified	3D Curved Glass, Scratch Resistant	Flat Toughened Glass
Body
Dimensions	Not Specified	45.7 x 52.2 x 11.9 mm	51.3mm (Diameter) x 9.8mm (Thickness)	264.9 x 48.6 x 12.9 mm
Weight	48 grams	27.6 grams	36.8 grams	Not Specified
Case Material	Polycarbonate	PC+ABS plastic with metal unibody appearance	ABS + PC Zinc Alloy with Vacuum Plating (Metal Finish)	Rugged Metallic Alloy Middle Frame with Plastic Bottom
Front Protection	Not specified	Not specified	3D Curved Glass (Scratch Resistant)	Toughened Flat Glass
Strap / Bracelet Options	Silicone	22mm silicone with quick-release mechanism	Silicone (Removable and Replaceable)	22mm Silicone Strap
Removable / Replaceable Strap	No	Yes	Yes	Yes
Water Resistance	IP68 (1.5m water resistance)	IP68 - Water resistant to 1.5m depth	IP67 - Can withstand submersion up to 1 meter for 30 minutes	IP68 water resistant up to 1.5m for 10 minutes
Dust Resistance	Yes, dust proof (IP68 certified)	IP68 - Dust resistant	IP67 rated	Dust proof
Durability Certifications	IP68 certified	IP68 certified	IP67 certification, Scratch resistant	IP68 Certified
Primary Controls	Functional Crown (touch-sensitive), Touchscreen	Touch screen with gesture controls and wake-up gesture	Touchscreen + Single Physical Button	Touch Screen, Functional Rotating Crown, Side Buttons
Processor
Operating System	Android, iOS compatible	Proprietary Real-Time Operating System (RTOS)	Proprietary OS (Compatible with Android v5.0+ and iOS)	Proprietary RTOS
Chipset / SoC	Not Specified	Not publicly disclosed	Single Chip Architecture (not detailed)	Not Specified
CPU Cores & Clock Speed	Not Specified	Not specified	Not specified	Not Specified (Optimized for low power)
GPU	Not specified	Not specified	Not specified	—
Health & Fitness Sensors
Heart Rate Monitor	24x7 Heart Rate Monitoring	Yes - 24/7 continuous optical PPG monitoring	Yes (HX3600 / HRS3600 Optical PPG Sensor)	Continuous Optical Heart Rate Monitoring
ECG	No ECG support	Not available	No ECG support	Not Available
SpO₂ / Blood Oxygen	SpO2 / Blood Oxygen Monitor with continuous monitoring	Yes - Blood oxygen saturation monitoring	Yes (Blood Oxygen Monitor)	SpO2 Blood Oxygen Monitoring
Skin Temperature Sensor	Not mentioned	Not available	No Skin Temperature Sensor	Not Available
Sleep Tracking	Sleep Tracker with sleep quality analysis	Yes - Automatic sleep detection with stage analysis	Yes (Sleep Monitor)	Sleep Stage Tracking (Light, Deep, REM)
Step Counter	Pedometer / Step Counter	Yes - Pedometer with step tracking	Yes (Pedometer)	Integrated Pedometer
GPS	Connected GPS (via smartphone only)	Not available - Bluetooth only	Yes (Built-in GPS)	App-Powered GPS Tracking (Connected via Phone)
Accelerometer	Yes, Accelerometer sensor	Yes - Motion detection	Yes (3-Axis Accelerometer)	Tri-axial Accelerometer
Gyroscope	Not specified	Yes - Rotation sensing	Gyroscope mentioned in some sources but not confirmed	Not Available
Barometer	Not specified	Not available	Yes (Barometer sensor mentioned)	Not Available
Compass	Not specified	Not available	Compass functionality not clearly specified	Not Available
Other Sensors	Stress Monitor, Menstrual Cycle Tracker, Women's Health Tracking	Stress monitor, activity tracking, calorie counter, female cycle tracker	Sedentary Reminders, Breathing Monitor, Voice Assistance, Calorie Counter, Physiological Cycle Reminder	Stress Monitoring, Female Cycle Tracking
Connectivity
Wi-Fi	No Wi-Fi support	Not available	No Wi-Fi	No Wi-Fi support
Bluetooth	Bluetooth 5.3	Bluetooth 5.3 with Tru Sync technology	Bluetooth v5.0	Bluetooth version 5.4
NFC	No	No	No	No
Cellular Connectivity	Bluetooth calling only (SingleSync), no standalone cellular	None - Bluetooth only	Wi-Fi Only (via paired smartphone)	None
ANT+	Not Specified	No	No	No
Battery
Capacity	280 mAh Lithium Polymer	300 mAh lithium-ion	280-300 mAh (sources vary)	410 mAh
Fast Charging Support	Yes - NitroFast Charging (10 min for 1 day use)	Not available	No Fast Charging	Full charge in approximately 50 minutes
Estimated Runtime	Up to 7 days typical use, 10+ days standby	7 days typical use, 25 days standby, 2 days with heavy BT calling	Typical: 5-7 days \| With Bluetooth Calling: 2-3 days \| Standby: 15 days (360 hours)	7-10 days typical; 2-3 days calling
Charging Method	Magnetic charging connector	Proprietary magnetic pogo pins connector	USB Magnetic Charging Points (Wired)	USB Magnetic 2-pin Pogo Cable
Battery Saver Modes	Not mentioned	Brightness reduction, disable 24/7 HR monitoring, low power mode	Yes (Battery Saver Mode available)	Automatic trigger at 10% battery
Memory & Storage
RAM	Not officially specified	Not specified	Not specified (watch operates on proprietary OS)	Not Specified
Internal Storage	Not officially specified	Limited (cloud-based watch faces only)	Not specified	Flash memory for health data and contacts
Expandable Storage	Not applicable	Not available	Not applicable	No
Design & Comfort
Bezel Type	Fixed, minimal bezel	Fixed circular bezel with flat surface design	Fixed Bezel (Non-rotating)	Fixed Rugged Bezel
Buttons / Crown	Functional Crown (touch and pressure sensitive)	No physical buttons - Touch controls only	Single Physical Button	Functional Rotating Crown and 2 Physical Buttons
Vibration Motor	Yes, haptic feedback vibration motor	Yes - Linear haptic motor for haptic feedback	Yes (Haptic Vibration Motor)	Haptic Vibration Motor
Screen Glass Type	Not specified	Standard protective glass (not specified)	3D Curved Glass	Flat Toughened Glass
Health & Safety Features
Fall Detection / SOS Calling	Emergency SOS capability available	Not available	No Fall Detection or SOS Calling	SOS emergency calling via phone
Menstrual Cycle / Health Tracking	Women's Health Tracking with menstrual cycle tracking	Yes - Female health tracking with cycle prediction	Yes (Physiological Cycle Reminder)	Female Wellness Tracking via App
Noise Monitoring	Not mentioned	Not available	No Noise Monitoring	Not Available
Guided Breathing / Mindfulness Features	Breathe Exercise feature	Yes - Breathe Practice guided breathing exercises	Yes (Breathe Monitor, Relaxation App)	Guided Breathing / Relax Mode
Audio & Voice
Built-in Speaker	Yes, built-in speaker	Yes - For Bluetooth calling	Yes (Dedicated HD Speaker)	Built-in speaker for Bluetooth calls
Microphone	Yes, high-quality microphone	Yes - For Bluetooth calling	Yes (Built-in Microphone for Bluetooth Calling)	Built-in microphone with ENx Noise Suppression
Voice Assistant	Yes, AI Voice Assistant (compatible with Alexa)	Not available	Yes (AI Voice Assistant, Google Assistant & Siri Compatible)	Siri and Google Assistant supported
Bluetooth Audio Output	Yes, via Bluetooth headphones	Not available - No music streaming	Yes (Bluetooth Audio Output via connected phone)	Audio via watch speaker
Notifications & Controls
Notification Support	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Yes - Call alerts, SMS alerts, app notifications with preview	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Alerts for calls, SMS, and app notifications
Quick Reply Options	Predefined Quick Replies (Android only)	Yes - Predefined quick reply messages only	Predefined Messages and Voice Reply	Predefined quick reply for calls (Android only)
Music Control / Playback	Full music control: Play/Pause, Volume, Previous/Next, Streaming control	Yes - Remote phone music control (play/pause, volume, track skip)	Yes (Play/Pause, Volume Control, Next/Previous Track)	Remote music control for phone
Find My Phone	Yes, Find My Phone feature	Yes - Locate paired smartphone	Yes (Find My Phone Feature)	Available via Bluetooth
Remote Camera Shutter	Yes, Camera Control feature	Yes - Remote camera trigger for photos	Yes (Remote Camera Control)	Remote shutter control for phone
Security
Fingerprint Sensor	Not Specified	No	No	No
Face Unlock	Not Specified	No	No	No
NFC Payment Security	No NFC support	Not available	No NFC, No Payment Security	Not Available
Find My Watch	Not explicitly mentioned	Not available	Yes (Find My Watch Feature)	Available via boAt Crest App
Ports & Accessories
Charging Connector Type	Magnetic charging connector (proprietary)	Proprietary magnetic pogo pins connector	USB Magnetic Charging Points	Magnetic Pogo Pin
Optional Docks / Stands	None mentioned	None mentioned	Not specified	Not Available
Bundled Extras	Quick Start Guide, Warranty Card, Magnetic Charging Cable	Magnetic charging cable, user manual, warranty card	Smartwatch, USB Charging Cable, User Manual, Warranty Card	1 Magnetic Charging Cable
Software & Apps
App Store Availability	Fastrack Smart World App (Google Play compatible)	Cloud-based proprietary store via NoiseFit app	Limited third-party app support (proprietary ecosystem)	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 with customization through NoiseFit app	130+ Cloud Watch Faces, Customizable Quick View Widgets, Multiple Theme Options	100+ Cloud Watch Faces, Customizable Watch Face Studio
Companion App	Fastrack Smart World App (formerly Fastrack Reflex World App)	NoiseFit App - Health tracking, notifications, watch face management	Fire-Boltt Health App (Android & iOS)	boAt Crest App
OTA Updates	Yes, over-the-air updates available	Yes - OTA firmware updates available	Yes (Over-the-Air Updates Available)	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	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	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	100+ Sports Modes, QR Tray, Weather, Calculator, Games