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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 Round dial ₹1,599 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
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
Launch Date	10/07/2024	17/07/2022	25/05/2023	12/01/2023
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 Wine, Rose Pink, Space Blue
Brand	Fastrack	Noise	FireBoltt	Noise
Display
Display Size	2.01, 5.1	1.8, 4.57	2.01, 5.1	1.38, 3.5
Resolution	320, 320 pixels	240, 280 pixels	240, 296 pixels	240, 240 pixels
Panel Type	TFT LCD UltraVU Display	LCD	TFT LCD	TFT LCD with 246 PPI pixel density
Touch Type	Capacitive Touchscreen	Capacitive Touchscreen	Capacitive Full Touch Screen (Single Touch)	Multi-touch capacitive touchscreen
Always-on Display	No	No	No	No
Brightness	Not specified	500 nits	450 nits	550 nits peak brightness
Refresh Rate	Not specified	Not specified	Standard refresh rate (not specified)	Standard 60Hz (typical for TFT)
Color Gamut / HDR Support	Standard color gamut, no HDR support	Not specified	Standard color gamut, no HDR support	Standard RGB color gamut
Screen Protection	Not specified	Not specified	3D Curved Glass, Scratch Resistant	Not specified
Body
Dimensions	Not Specified	44.5 x 36.5 x 11 mm	51.3mm (Diameter) x 9.8mm (Thickness)	45.7 x 52.2 x 11.9 mm
Weight	48 grams	53.5 grams	36.8 grams	27.6 grams
Case Material	Polycarbonate	Zinc alloy and Polycarbonate	ABS + PC Zinc Alloy with Vacuum Plating (Metal Finish)	PC+ABS plastic with metal unibody appearance
Front Protection	Not specified	Not specified	3D Curved Glass (Scratch Resistant)	Not specified
Strap / Bracelet Options	Silicone	Silicone strap	Silicone (Removable and Replaceable)	22mm silicone with quick-release mechanism
Removable / Replaceable Strap	No	Yes	Yes	Yes
Water Resistance	IP68 (1.5m water resistance)	IP67	IP67 - Can withstand submersion up to 1 meter for 30 minutes	IP68 - Water resistant to 1.5m depth
Dust Resistance	Yes, dust proof (IP68 certified)	IP67	IP67 rated	IP68 - Dust resistant
Durability Certifications	IP68 certified	None mentioned	IP67 certification, Scratch resistant	IP68 certified
Primary Controls	Functional Crown (touch-sensitive), Touchscreen	Touch Screen, 1x Side Button (Power/Wake)	Touchscreen + Single Physical Button	Touch screen with gesture controls and wake-up gesture
Processor
Operating System	Android, iOS compatible	Proprietary OS	Proprietary OS (Compatible with Android v5.0+ and iOS)	Proprietary Real-Time Operating System (RTOS)
Chipset / SoC	Not Specified	Not specified	Single Chip Architecture (not detailed)	Not publicly disclosed
CPU Cores & Clock Speed	Not Specified	Not specified	Not specified	Not specified
GPU	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)	Yes - 24/7 continuous optical PPG monitoring
ECG	No ECG support	No	No ECG support	Not available
SpO₂ / Blood Oxygen	SpO2 / Blood Oxygen Monitor with continuous monitoring	Yes	Yes (Blood Oxygen Monitor)	Yes - Blood oxygen saturation monitoring
Skin Temperature Sensor	Not mentioned	No	No Skin Temperature Sensor	Not available
Sleep Tracking	Sleep Tracker with sleep quality analysis	Yes	Yes (Sleep Monitor)	Yes - Automatic sleep detection with stage analysis
Step Counter	Pedometer / Step Counter	Yes	Yes (Pedometer)	Yes - Pedometer with step tracking
GPS	Connected GPS (via smartphone only)	No (Connected GPS via smartphone)	Yes (Built-in GPS)	Not available - Bluetooth only
Accelerometer	Yes, Accelerometer sensor	Yes	Yes (3-Axis Accelerometer)	Yes - Motion detection
Gyroscope	Not specified	Not specified	Gyroscope mentioned in some sources but not confirmed	Yes - Rotation sensing
Barometer	Not specified	Not specified	Yes (Barometer sensor mentioned)	Not available
Compass	Not specified	Not specified	Compass functionality not clearly specified	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, activity tracking, calorie counter, female cycle tracker
Connectivity
Wi-Fi	No Wi-Fi support	No	No Wi-Fi	Not available
Bluetooth	Bluetooth 5.3	5.1	Bluetooth v5.0	Bluetooth 5.3 with Tru Sync technology
NFC	No	No	No	No
Cellular Connectivity	Bluetooth calling only (SingleSync), no standalone cellular	No	Wi-Fi Only (via paired smartphone)	None - Bluetooth only
ANT+	Not Specified	No	No	No
Battery
Capacity	280 mAh Lithium Polymer	260 mAh	280-300 mAh (sources vary)	300 mAh lithium-ion
Fast Charging Support	Yes - NitroFast Charging (10 min for 1 day use)	No	No Fast Charging	Not available
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)	7 days typical use, 25 days standby, 2 days with heavy BT calling
Charging Method	Magnetic charging connector	Magnetic charging cable	USB Magnetic Charging Points (Wired)	Proprietary magnetic pogo pins connector
Battery Saver Modes	Not mentioned	Not specified	Yes (Battery Saver Mode available)	Brightness reduction, disable 24/7 HR monitoring, low power mode
Memory & Storage
RAM	Not officially specified	Not specified	Not specified (watch operates on proprietary OS)	Not specified
Internal Storage	Not officially specified	Not specified	Not specified	Limited (cloud-based watch faces only)
Expandable Storage	Not applicable	No	Not applicable	Not available
Design & Comfort
Bezel Type	Fixed, minimal bezel	Fixed bezel	Fixed Bezel (Non-rotating)	Fixed circular bezel with flat surface design
Buttons / Crown	Functional Crown (touch and pressure sensitive)	1x Side Button for power on/off and wake functions	Single Physical Button	No physical buttons - Touch controls only
Vibration Motor	Yes, haptic feedback vibration motor	Yes	Yes (Haptic Vibration Motor)	Yes - Linear haptic motor for haptic feedback
Screen Glass Type	Not specified	Not specified	3D Curved Glass	Standard protective glass (not specified)
Health & Safety Features
Fall Detection / SOS Calling	Emergency SOS capability available	No	No Fall Detection or SOS Calling	Not available
Menstrual Cycle / Health Tracking	Women's Health Tracking with menstrual cycle tracking	Yes	Yes (Physiological Cycle Reminder)	Yes - Female health tracking with cycle prediction
Noise Monitoring	Not mentioned	No	No Noise Monitoring	Not available
Guided Breathing / Mindfulness Features	Breathe Exercise feature	Yes (Breathing exercises, Stress measurement)	Yes (Breathe Monitor, Relaxation App)	Yes - Breathe Practice guided breathing exercises
Audio & Voice
Built-in Speaker	Yes, built-in speaker	Yes	Yes (Dedicated HD Speaker)	Yes - For Bluetooth calling
Microphone	Yes, high-quality microphone	Yes	Yes (Built-in Microphone for Bluetooth Calling)	Yes - For Bluetooth calling
Voice Assistant	Yes, AI Voice Assistant (compatible with Alexa)	Yes	Yes (AI Voice Assistant, Google Assistant & Siri Compatible)	Not available
Bluetooth Audio Output	Yes, via Bluetooth headphones	No	Yes (Bluetooth Audio Output via connected phone)	Not available - No music streaming
Notifications & Controls
Notification Support	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Yes	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Yes - Call alerts, SMS alerts, app notifications with preview
Quick Reply Options	Predefined Quick Replies (Android only)	Predefined messages	Predefined Messages and Voice Reply	Yes - Predefined quick reply messages 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)	Yes - Remote phone music control (play/pause, volume, track skip)
Find My Phone	Yes, Find My Phone feature	Yes	Yes (Find My Phone Feature)	Yes - Locate paired smartphone
Remote Camera Shutter	Yes, Camera Control feature	Yes	Yes (Remote Camera Control)	Yes - Remote camera trigger for photos
Security
Fingerprint Sensor	Not Specified	No	No	No
Face Unlock	Not Specified	No	No	No
NFC Payment Security	No NFC support	No	No NFC, No Payment Security	Not available
Find My Watch	Not explicitly mentioned	Yes (via NoiseFit companion app)	Yes (Find My Watch Feature)	Not available
Ports & Accessories
Charging Connector Type	Magnetic charging connector (proprietary)	Magnetic charging pins	USB Magnetic Charging Points	Proprietary magnetic pogo pins connector
Optional Docks / Stands	None mentioned	Not specified	Not specified	None mentioned
Bundled Extras	Quick Start Guide, Warranty Card, Magnetic Charging Cable	Not Specified	Smartwatch, USB Charging Cable, User Manual, Warranty Card	Magnetic charging cable, user manual, warranty card
Software & Apps
App Store Availability	Fastrack Smart World App (Google Play compatible)	No	Limited third-party app support (proprietary ecosystem)	Cloud-based proprietary store via NoiseFit app
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-based watch faces with customization through NoiseFit app
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 - Health tracking, notifications, watch face management
OTA Updates	Yes, over-the-air updates available	Yes	Yes (Over-the-Air Updates Available)	Yes - OTA firmware updates available
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	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