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

Specification	boAt Lunar Discovery ₹1,499 Prices and availability may change on the seller's site View Price	Noise Twist Round dial ₹1,499 Prices and availability may change on the seller's site View Price	Boult Crown R Pro ₹1,699 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 Go ₹1,499 Prices and availability may change on the seller's site View Price	Fire-Boltt Hunter 51.1mm ₹1,199 Prices and availability may change on the seller's site View Price
General
In The Box	1 Smartwatch, 1 USB Magnetic Charging Cable, 1 User Manual, 1 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	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card	Smartwatch, USB Charging Cable, User Manual, Warranty Card
Model Name	Lunar Discovery	NoiseFit Twist	Crown R Pro	Fastrack Limitless FS2+	NoiseFit Twist Go	Fire-Boltt Hunter 51.1mm (2.01) HD Display Bluetooth Calling Single Chipset, Metal Body
Launch Date	25/10/2024	12/01/2023	18/06/2023	10/07/2024	31/10/2023	25/05/2023
Colors	Active Black, Brown, Active Blue, Cherry Blossom, Mint Green, Metal Black	Jet Black, Silver Grey, Rose Wine, Rose Pink, Space Blue	Frozen Silver, Thunder Black, Volcanic Orange	Charcoal Black, Wine Red, Copper Teal, Blue, Beige	Jet Black, Silver Grey, Rose Pink, Gold Link, Silver Link, Elite Black, Rose Wine	Black, Dark Blue, Light Grey, White, Blue, Silver, Mist Grey
Brand	BoAt	Noise	GoBoult	Fastrack	Noise	FireBoltt
Display
Display Size	1.39, 3.53	1.38, 3.5	1.43, 3.63	2.01, 5.1	1.39, 3.53	2.01, 5.1
Resolution	240, 240 pixels	240, 240 pixels	466, 466 pixels	320, 320 pixels	240, 240 pixels	240, 296 pixels
Panel Type	TFT LCD (HD Display)	TFT LCD with 246 PPI pixel density	Super AMOLED	TFT LCD UltraVU Display	TFT LCD	TFT LCD
Touch Type	MultiTouch	Multi-touch capacitive touchscreen	Full Touch	Capacitive Touchscreen	Full Touch	Capacitive Full Touch Screen (Single Touch)
Always-on Display	Not Specified	No	Yes	No	No	No
Brightness	Not specified	550 nits peak brightness	600 nits	Not specified	Up to 500 nits	450 nits
Refresh Rate	Not specified	Standard 60Hz (typical for TFT)	60 Hz	Not specified	60Hz	Standard refresh rate (not specified)
Color Gamut / HDR Support	Not specified	Standard RGB color gamut	Not Specified	Standard color gamut, no HDR support	Not Specified	Standard color gamut, no HDR support
Screen Protection	Not specified	Not specified	2.5D Curved Glass	Not specified	2.5D Glass	3D Curved Glass, Scratch Resistant
Body
Dimensions	44.0 x 45.9 x 12.3 mm	45.7 x 52.2 x 11.9 mm	46 x 46 x 11 mm (Approx)	Not Specified	Round Dial, approx. 46mm diameter (exact mm not specified)	51.3mm (Diameter) x 9.8mm (Thickness)
Weight	45 g	27.6 grams	56.5 g	48 grams	Approx. 40g - 45g	36.8 grams
Case Material	Aluminum Alloy middle frame with plastic bottom	PC+ABS plastic with metal unibody appearance	Zinc Alloy Frame	Polycarbonate	Metallic Finish (Zinc Alloy) with Polycarbonate back	ABS + PC Zinc Alloy with Vacuum Plating (Metal Finish)
Front Protection	Standard glass	Not specified	Glass	Not specified	2.5D Curved Glass	3D Curved Glass (Scratch Resistant)
Strap / Bracelet Options	Silicon and Metal straps available	22mm silicone with quick-release mechanism	Silicone, Metallic (variant dependent)	Silicone	22mm Silicone, Metallic Link, or Mesh options	Silicone (Removable and Replaceable)
Removable / Replaceable Strap	Yes	Yes	Yes	No	Yes	Yes
Water Resistance	IP67	IP68 - Water resistant to 1.5m depth	IP67 Water Resistant	IP68 (1.5m water resistance)	IP67 Water Resistant	IP67 - Can withstand submersion up to 1 meter for 30 minutes
Dust Resistance	IP67	IP68 - Dust resistant	IP67 Dust Resistant	Yes, dust proof (IP68 certified)	IP67 Dust Resistant	IP67 rated
Durability Certifications	Not Specified	IP68 certified	None	IP68 certified	Not Specified	IP67 certification, Scratch resistant
Primary Controls	Touch screen + Functional rotary crown (side button)	Touch screen with gesture controls and wake-up gesture	Touch Screen, Functional Crown, Push Button	Functional Crown (touch-sensitive), Touchscreen	Touch Screen, Functional Rotating Crown	Touchscreen + Single Physical Button
Processor
Operating System	Crest+ OS	Proprietary Real-Time Operating System (RTOS)	Boult OS (RTOS)	Android, iOS compatible	Noise OS (RTOS)	Proprietary OS (Compatible with Android v5.0+ and iOS)
Chipset / SoC	Not specified	Not publicly disclosed	Single-chip 2-in-1 Bluetooth SoC	Not Specified	Single-chip Tru Sync™ Technology	Single Chip Architecture (not detailed)
CPU Cores & Clock Speed	Not specified	Not specified	Not Specified	Not Specified	Not Specified	Not specified
GPU	Not specified	Not specified	Not Specified	Not specified	Not Specified	Not specified
Health & Fitness Sensors
Heart Rate Monitor	Yes (Optical PPG sensor)	Yes - 24/7 continuous optical PPG monitoring	24/7 Heart Rate Monitor	24x7 Heart Rate Monitoring	24/7 Heart Rate Monitor	Yes (HX3600 / HRS3600 Optical PPG Sensor)
ECG	No	Not available	No	No ECG support	No	No ECG support
SpO₂ / Blood Oxygen	Yes	Yes - Blood oxygen saturation monitoring	SpO2 Sensor	SpO2 / Blood Oxygen Monitor with continuous monitoring	SpO2 Monitoring	Yes (Blood Oxygen Monitor)
Skin Temperature Sensor	No	Not available	No	Not mentioned	No	No Skin Temperature Sensor
Sleep Tracking	Yes (monitors sleep quality, hours slept)	Yes - Automatic sleep detection with stage analysis	Sleep Monitor (Light, Deep, REM)	Sleep Tracker with sleep quality analysis	Sleep Monitor with Stages	Yes (Sleep Monitor)
Step Counter	Yes (Pedometer with daily step count)	Yes - Pedometer with step tracking	Yes	Pedometer / Step Counter	Yes	Yes (Pedometer)
GPS	Connected GPS	Not available - Bluetooth only	Connected GPS	Connected GPS (via smartphone only)	No (Connected GPS)	Yes (Built-in GPS)
Accelerometer	Yes (G-sensor)	Yes - Motion detection	Yes	Yes, Accelerometer sensor	Yes	Yes (3-Axis Accelerometer)
Gyroscope	Yes	Yes - Rotation sensing	Not Specified	Not specified	No	Gyroscope mentioned in some sources but not confirmed
Barometer	No	Not available	No	Not specified	No	Yes (Barometer sensor mentioned)
Compass	No	Not available	No	Not specified	No	Compass functionality not clearly specified
Other Sensors	Stress Monitor, Energy Score tracking	Stress monitor, activity tracking, calorie counter, female cycle tracker	Blood Pressure (Simulated), Menstrual Cycle Tracker, Breath Training	Stress Monitor, Menstrual Cycle Tracker, Women's Health Tracking	Stress Monitor, Breathe Practice, Female Cycle Tracker	Sedentary Reminders, Breathing Monitor, Voice Assistance, Calorie Counter, Physiological Cycle Reminder
Connectivity
Wi-Fi	No	Not available	No	No Wi-Fi support	No	No Wi-Fi
Bluetooth	Bluetooth 5.3	Bluetooth 5.3 with Tru Sync technology	Bluetooth 5.2	Bluetooth 5.3	Bluetooth v5.3	Bluetooth v5.0
NFC	Yes	No	No	No	No	No
Cellular Connectivity	No	None - Bluetooth only	No	Bluetooth calling only (SingleSync), no standalone cellular	No	Wi-Fi Only (via paired smartphone)
ANT+	No	No	No	Not Specified	No	No
Battery
Capacity	260 mAh (Lithium Polymer)	300 mAh lithium-ion	Not Specified (Approx 250-300mAh)	280 mAh Lithium Polymer	210 mAh	280-300 mAh (sources vary)
Fast Charging Support	Yes	Not available	No	Yes - NitroFast Charging (10 min for 1 day use)	No	No Fast Charging
Estimated Runtime	Up to 7 days	7 days typical use, 25 days standby, 2 days with heavy BT calling	Up to 5 Days (Typical)	Up to 7 days typical use, 10+ days standby	Up to 7 Days (Typical), 2 Days (Calling)	Typical: 5-7 days \| With Bluetooth Calling: 2-3 days \| Standby: 15 days (360 hours)
Charging Method	Magnetic charging cable	Proprietary magnetic pogo pins connector	Magnetic Charging	Magnetic charging connector	Magnetic Charging	USB Magnetic Charging Points (Wired)
Battery Saver Modes	DND mode, various power saving settings	Brightness reduction, disable 24/7 HR monitoring, low power mode	Yes	Not mentioned	Power Saving Mode	Yes (Battery Saver Mode available)
Memory & Storage
RAM	Not Specified	Not specified	Not Specified	Not officially specified	Not Specified	Not specified (watch operates on proprietary OS)
Internal Storage	Not Specified	Limited (cloud-based watch faces only)	Not Specified	Not officially specified	Stores call logs and up to 10 contacts	Not specified
Expandable Storage	Not Specified	Not available	No	Not applicable	No	Not applicable
Design & Comfort
Bezel Type	Fixed bezel	Fixed circular bezel with flat surface design	Fixed	Fixed, minimal bezel	Fixed Metallic Bezel	Fixed Bezel (Non-rotating)
Buttons / Crown	1 functional crown/button	No physical buttons - Touch controls only	Rotating Crown + 1 Button	Functional Crown (touch and pressure sensitive)	2 (Side Button + Rotating Crown)	Single Physical Button
Vibration Motor	Yes	Yes - Linear haptic motor for haptic feedback	Yes	Yes, haptic feedback vibration motor	Yes	Yes (Haptic Vibration Motor)
Screen Glass Type	Not specified	Standard protective glass (not specified)	2.5D Glass	Not specified	2.5D Curved Glass	3D Curved Glass
Health & Safety Features
Fall Detection / SOS Calling	Emergency SOS feature (press and hold to alert contacts)	Not available	No	Emergency SOS capability available	No	No Fall Detection or SOS Calling
Menstrual Cycle / Health Tracking	Not available	Yes - Female health tracking with cycle prediction	Female Health Tracker	Women's Health Tracking with menstrual cycle tracking	Female Cycle Tracker	Yes (Physiological Cycle Reminder)
Noise Monitoring	No	Not available	No	Not mentioned	No	No Noise Monitoring
Guided Breathing / Mindfulness Features	Yes (Breathe Training Mode / Relax Mode)	Yes - Breathe Practice guided breathing exercises	Breath Training	Breathe Exercise feature	Breathe Practice	Yes (Breathe Monitor, Relaxation App)
Audio & Voice
Built-in Speaker	Yes (HD speaker)	Yes - For Bluetooth calling	Yes	Yes, built-in speaker	Yes	Yes (Dedicated HD Speaker)
Microphone	Yes (Built-in HD microphone)	Yes - For Bluetooth calling	Yes	Yes, high-quality microphone	Yes	Yes (Built-in Microphone for Bluetooth Calling)
Voice Assistant	Yes	Not available	Yes (AI Voice Assistant)	Yes, AI Voice Assistant (compatible with Alexa)	AI Voice Assistant (Siri/Google)	Yes (AI Voice Assistant, Google Assistant & Siri Compatible)
Bluetooth Audio Output	Yes	Not available - No music streaming	No	Yes, via Bluetooth headphones	No	Yes (Bluetooth Audio Output via connected phone)
Notifications & Controls
Notification Support	Call Alerts, SMS/Messaging Alerts, App Notifications	Yes - Call alerts, SMS alerts, app notifications with preview	Call, SMS, App Notifications	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Call, SMS, Social Media, Email	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts
Quick Reply Options	Predefined quick replies available	Yes - Predefined quick reply messages only	No	Predefined Quick Replies (Android only)	Quick Reply (Android Only)	Predefined Messages and Voice Reply
Music Control / Playback	Yes (Play/Pause, Volume Control, Track navigation)	Yes - Remote phone music control (play/pause, volume, track skip)	Music Control (Phone)	Full music control: Play/Pause, Volume, Previous/Next, Streaming control	Remote Music Control	Yes (Play/Pause, Volume Control, Next/Previous Track)
Find My Phone	Yes	Yes - Locate paired smartphone	Yes	Yes, Find My Phone feature	Yes	Yes (Find My Phone Feature)
Remote Camera Shutter	Yes	Yes - Remote camera trigger for photos	Yes	Yes, Camera Control feature	Yes	Yes (Remote Camera Control)
Security
Fingerprint Sensor	No	No	No	Not Specified	No	No
Face Unlock	No	No	No	Not Specified	No	No
NFC Payment Security	No	Not available	No	No NFC support	No	No NFC, No Payment Security
Find My Watch	Yes (via app)	Not available	Yes (via App)	Not explicitly mentioned	Yes (via App)	Yes (Find My Watch Feature)
Ports & Accessories
Charging Connector Type	Magnetic USB charging cable	Proprietary magnetic pogo pins connector	Magnetic Pogo Pin	Magnetic charging connector (proprietary)	Magnetic Pogo Pin	USB Magnetic Charging Points
Optional Docks / Stands	Not included	None mentioned	None	None mentioned	None	Not specified
Bundled Extras	Magnetic charging cable, User manual, Warranty QR card	Magnetic charging cable, user manual, warranty card	Charging Cable, User Manual	Quick Start Guide, Warranty Card, Magnetic Charging Cable	Charging Cable, User Manual	Smartwatch, USB Charging Cable, User Manual, Warranty Card
Software & Apps
App Store Availability	Not Supported	Cloud-based proprietary store via NoiseFit app	None	Fastrack Smart World App (Google Play compatible)	No	Limited third-party app support (proprietary ecosystem)
Customization Options	DIY Watch Face Studio (custom watch faces), 700+ active/sports modes	100+ cloud-based watch faces with customization through NoiseFit app	150+ Watch Faces, Menu Styles	200+ Watchfaces, Multiple Menu Styles, Custom Watch Face Creation, 110+ Sports Modes, In-Built Games, Calculator	100+ Cloud Watch Faces	130+ Cloud Watch Faces, Customizable Quick View Widgets, Multiple Theme Options
Companion App	boAt Crest App (Android 7.0+, iOS 14.0+)	NoiseFit App - Health tracking, notifications, watch face management	Boult Fit (GoBoult Fit)	Fastrack Smart World App (formerly Fastrack Reflex World App)	NoiseFit App	Fire-Boltt Health App (Android & iOS)
OTA Updates	Yes (via companion app)	Yes - OTA firmware updates available	Yes	Yes, over-the-air updates available	Yes	Yes (Over-the-Air Updates Available)
Pre-installed Apps	Turn-by-Turn Navigation (MapMyIndia), QR Tray, Emergency SOS, Weather, Alarm, Timer, Stopwatch, 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, Weather, Calculator, Games	110+ Sports Modes, 200+ Watchfaces, In-Built Games, AI Voice Assistant, Calculator, Alarm Clock, Stopwatch, Timer, Stress Monitor	Alarm, Stopwatch, Timer, Weather, Calculator, 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