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

Specification	Noise Twist Go ₹1,399 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	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, USB Charging Cable, User Manual, Warranty Card	Smartwatch, Magnetic Charging Cable, Quick Start Guide, Warranty Card
Model Name	NoiseFit Twist Go	Fire-Boltt Hunter 51.1mm (2.01) HD Display Bluetooth Calling Single Chipset, Metal Body	Fastrack Limitless FS2+
Launch Date	31/10/2023	25/05/2023	10/07/2024
Colors	Jet Black, Silver Grey, Rose Pink, Gold Link, Silver Link, Elite Black, Rose Wine	Black, Dark Blue, Light Grey, White, Blue, Silver, Mist Grey	Charcoal Black, Wine Red, Copper Teal, Blue, Beige
Brand	Noise	FireBoltt	Fastrack
Display
Display Size	1.39, 3.53	2.01, 5.1	2.01, 5.1
Resolution	240, 240 pixels	240, 296 pixels	320, 320 pixels
Panel Type	TFT LCD	TFT LCD	TFT LCD UltraVU Display
Touch Type	Full Touch	Capacitive Full Touch Screen (Single Touch)	Capacitive Touchscreen
Always-on Display	No	No	No
Brightness	Up to 500 nits	450 nits	Not specified
Refresh Rate	60Hz	Standard refresh rate (not specified)	Not specified
Color Gamut / HDR Support	Not Specified	Standard color gamut, no HDR support	Standard color gamut, no HDR support
Screen Protection	2.5D Glass	3D Curved Glass, Scratch Resistant	Not specified
Body
Dimensions	Round Dial, approx. 46mm diameter (exact mm not specified)	51.3mm (Diameter) x 9.8mm (Thickness)	Not Specified
Weight	Approx. 40g - 45g	36.8 grams	48 grams
Case Material	Metallic Finish (Zinc Alloy) with Polycarbonate back	ABS + PC Zinc Alloy with Vacuum Plating (Metal Finish)	Polycarbonate
Front Protection	2.5D Curved Glass	3D Curved Glass (Scratch Resistant)	Not specified
Strap / Bracelet Options	22mm Silicone, Metallic Link, or Mesh options	Silicone (Removable and Replaceable)	Silicone
Removable / Replaceable Strap	Yes	Yes	No
Water Resistance	IP67 Water Resistant	IP67 - Can withstand submersion up to 1 meter for 30 minutes	IP68 (1.5m water resistance)
Dust Resistance	IP67 Dust Resistant	IP67 rated	Yes, dust proof (IP68 certified)
Durability Certifications	Not Specified	IP67 certification, Scratch resistant	IP68 certified
Primary Controls	Touch Screen, Functional Rotating Crown	Touchscreen + Single Physical Button	Functional Crown (touch-sensitive), Touchscreen
Processor
Operating System	Noise OS (RTOS)	Proprietary OS (Compatible with Android v5.0+ and iOS)	Android, iOS compatible
Chipset / SoC	Single-chip Tru Sync™ Technology	Single Chip Architecture (not detailed)	Not Specified
CPU Cores & Clock Speed	Not Specified	Not specified	Not Specified
GPU	Not Specified	Not specified	Not specified
Health & Fitness Sensors
Heart Rate Monitor	24/7 Heart Rate Monitor	Yes (HX3600 / HRS3600 Optical PPG Sensor)	24x7 Heart Rate Monitoring
ECG	No	No ECG support	No ECG support
SpO₂ / Blood Oxygen	SpO2 Monitoring	Yes (Blood Oxygen Monitor)	SpO2 / Blood Oxygen Monitor with continuous monitoring
Skin Temperature Sensor	No	No Skin Temperature Sensor	Not mentioned
Sleep Tracking	Sleep Monitor with Stages	Yes (Sleep Monitor)	Sleep Tracker with sleep quality analysis
Step Counter	Yes	Yes (Pedometer)	Pedometer / Step Counter
GPS	No (Connected GPS)	Yes (Built-in GPS)	Connected GPS (via smartphone only)
Accelerometer	Yes	Yes (3-Axis Accelerometer)	Yes, Accelerometer sensor
Gyroscope	No	Gyroscope mentioned in some sources but not confirmed	Not specified
Barometer	No	Yes (Barometer sensor mentioned)	Not specified
Compass	No	Compass functionality not clearly specified	Not specified
Other Sensors	Stress Monitor, Breathe Practice, Female Cycle Tracker	Sedentary Reminders, Breathing Monitor, Voice Assistance, Calorie Counter, Physiological Cycle Reminder	Stress Monitor, Menstrual Cycle Tracker, Women's Health Tracking
Connectivity
Wi-Fi	No	No Wi-Fi	No Wi-Fi support
Bluetooth	Bluetooth v5.3	Bluetooth v5.0	Bluetooth 5.3
NFC	No	No	No
Cellular Connectivity	No	Wi-Fi Only (via paired smartphone)	Bluetooth calling only (SingleSync), no standalone cellular
ANT+	No	No	Not Specified
Battery
Capacity	210 mAh	280-300 mAh (sources vary)	280 mAh Lithium Polymer
Fast Charging Support	No	No Fast Charging	Yes - NitroFast Charging (10 min for 1 day use)
Estimated Runtime	Up to 7 Days (Typical), 2 Days (Calling)	Typical: 5-7 days \| With Bluetooth Calling: 2-3 days \| Standby: 15 days (360 hours)	Up to 7 days typical use, 10+ days standby
Charging Method	Magnetic Charging	USB Magnetic Charging Points (Wired)	Magnetic charging connector
Battery Saver Modes	Power Saving Mode	Yes (Battery Saver Mode available)	Not mentioned
Memory & Storage
RAM	Not Specified	Not specified (watch operates on proprietary OS)	Not officially specified
Internal Storage	Stores call logs and up to 10 contacts	Not specified	Not officially specified
Expandable Storage	No	Not applicable	Not applicable
Design & Comfort
Bezel Type	Fixed Metallic Bezel	Fixed Bezel (Non-rotating)	Fixed, minimal bezel
Buttons / Crown	2 (Side Button + Rotating Crown)	Single Physical Button	Functional Crown (touch and pressure sensitive)
Vibration Motor	Yes	Yes (Haptic Vibration Motor)	Yes, haptic feedback vibration motor
Screen Glass Type	2.5D Curved Glass	3D Curved Glass	Not specified
Health & Safety Features
Fall Detection / SOS Calling	No	No Fall Detection or SOS Calling	Emergency SOS capability available
Menstrual Cycle / Health Tracking	Female Cycle Tracker	Yes (Physiological Cycle Reminder)	Women's Health Tracking with menstrual cycle tracking
Noise Monitoring	No	No Noise Monitoring	Not mentioned
Guided Breathing / Mindfulness Features	Breathe Practice	Yes (Breathe Monitor, Relaxation App)	Breathe Exercise feature
Audio & Voice
Built-in Speaker	Yes	Yes (Dedicated HD Speaker)	Yes, built-in speaker
Microphone	Yes	Yes (Built-in Microphone for Bluetooth Calling)	Yes, high-quality microphone
Voice Assistant	AI Voice Assistant (Siri/Google)	Yes (AI Voice Assistant, Google Assistant & Siri Compatible)	Yes, AI Voice Assistant (compatible with Alexa)
Bluetooth Audio Output	No	Yes (Bluetooth Audio Output via connected phone)	Yes, via Bluetooth headphones
Notifications & Controls
Notification Support	Call, SMS, Social Media, Email	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts	Call Alerts, SMS/Messaging, App Notifications, Social Media Alerts
Quick Reply Options	Quick Reply (Android Only)	Predefined Messages and Voice Reply	Predefined Quick Replies (Android only)
Music Control / Playback	Remote Music Control	Yes (Play/Pause, Volume Control, Next/Previous Track)	Full music control: Play/Pause, Volume, Previous/Next, Streaming control
Find My Phone	Yes	Yes (Find My Phone Feature)	Yes, Find My Phone feature
Remote Camera Shutter	Yes	Yes (Remote Camera Control)	Yes, Camera Control feature
Security
Fingerprint Sensor	No	No	Not Specified
Face Unlock	No	No	Not Specified
NFC Payment Security	No	No NFC, No Payment Security	No NFC support
Find My Watch	Yes (via App)	Yes (Find My Watch Feature)	Not explicitly mentioned
Ports & Accessories
Charging Connector Type	Magnetic Pogo Pin	USB Magnetic Charging Points	Magnetic charging connector (proprietary)
Optional Docks / Stands	None	Not specified	None mentioned
Bundled Extras	Charging Cable, User Manual	Smartwatch, USB Charging Cable, User Manual, Warranty Card	Quick Start Guide, Warranty Card, Magnetic Charging Cable
Software & Apps
App Store Availability	No	Limited third-party app support (proprietary ecosystem)	Fastrack Smart World App (Google Play compatible)
Customization Options	100+ Cloud Watch Faces	130+ Cloud Watch Faces, Customizable Quick View Widgets, Multiple Theme Options	200+ Watchfaces, Multiple Menu Styles, Custom Watch Face Creation, 110+ Sports Modes, In-Built Games, Calculator
Companion App	NoiseFit App	Fire-Boltt Health App (Android & iOS)	Fastrack Smart World App (formerly Fastrack Reflex World App)
OTA Updates	Yes	Yes (Over-the-Air Updates Available)	Yes, over-the-air updates available
Pre-installed Apps	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	110+ Sports Modes, 200+ Watchfaces, In-Built Games, AI Voice Assistant, Calculator, Alarm Clock, Stopwatch, Timer, Stress Monitor