Compare Products Side-by-Side

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

Specification	Noise ColorFit Pulse 4 Max ₹2,499 Prices and availability may change on the seller's site View Price	Fire-Boltt Axiom ₹2,699 Prices and availability may change on the seller's site View Price	Fastrack Astor FR2 Pro ₹2,799 Prices and availability may change on the seller's site View Price	Boult Crown R Pro ₹1,999 Prices and availability may change on the seller's site View Price	Realme Watch S2 ₹2,799 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	Noise Junior Champ 3 ₹1,999 Prices and availability may change on the seller's site View Price	Boat Ultima Prime smartwatch ₹2,499 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, Wireless Charging Dock, User Manual, Warranty Card	Smart Watch, Magnetic Charging Cable, User Manual, Warranty Card	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card	Smartwatch, Charging Cable, User Manual, Silicone Strap	1 Unit Smartwatch, 1 Unit USB Magnetic Charging Cable, 1 Unit User Manual, 1 Unit Warranty Card	Smartwatch, Magnetic Charging Cable, User Manual, Warranty Card	1 Unit boAt Ultima Prime Smartwatch, 1 Unit USB Magnetic Charging Cable, 1 Unit Protective Silicone Cover, 1 Unit User Manual, 1 Unit Warranty Card
Model Name	ColorFit Pulse 4 Max / NSW-421	Fire-Boltt Axiom	Fastrack Astor FR2 Pro	Crown R Pro	Realme Watch S2	boAt Lunar Atlas	Noise Junior Champ 3	boAt Ultima Prime
Launch Date	18/07/2024	15/09/2025	15/09/2024	18/06/2023	30/07/2024	06/02/2026	30/09/2025	22/02/2025
Colors	Jet Black, Deep Wine, Rose Gold, Space Blue, Black Link, Calm Silver Link, Silver Link	Black, Silver, Orange, Gold	Black, Silver, Rose Gold, Grey	Frozen Silver, Thunder Black, Volcanic Orange	Midnight Black, Ocean Silver, Metallic Grey	Ranger Black, Phantom Blue	Black Blaze, Astro Orbit, Cotton Cloud, Arctic Storm	Steel Black, Royal Berry, Rose Gold, Silver Mist, Forest Green, Onyx Black
Brand	Noise	FireBoltt	Fastrack	GoBoult	Realme	BoAt	Noise	BoAt
Display
Display Size	1.96, 4.98	1.43, 3.63	1.43, 3.63	1.43, 3.63	1.43, 3.63	1.39, 3.5	1.4, 3.55	1.43, 3.63
Resolution	410, 502 pixels	466, 466 pixels	466, 466 pixels	466, 466 pixels	466, 466 pixels	240, 240 pixels	240, 240 pixels	466, 466 pixels
Panel Type	AMOLED with 190 ppi	AMOLED	AMOLED	Super AMOLED	AMOLED with 326 ppi density	Color HD Display (TFT-LCD)	IPS LCD	AMOLED display panel
Touch Type	Capacitive multi-touch	Full Capacitive Touch	Capacitive Touch	Full Touch	Capacitive multi-touch	Full Capacitive Touch	Capacitive Touchscreen	Capacitive multi-touch support
Always-on Display	Yes	Yes	—	Yes	Yes	No	No	Yes
Brightness	500-600 nits (estimated based on comparable models)	1000 nits (Peak)	Not Specified	600 nits	600 nits peak brightness	500 nits	5-level adjustable brightness	Not Specified
Refresh Rate	Standard AMOLED refresh rate	60Hz	Not Specified	60 Hz	60 Hz	60 Hz	Not Specified	Not Specified
Color Gamut / HDR Support	Full color AMOLED display	Not Specified	—	Not Specified	Full color AMOLED (HDR not specified)	Standard	Not Specified	Not Specified
Screen Protection	Curved tempered glass with anti-fingerprint coating	Flat Curved Glass	Not Specified	2.5D Curved Glass	7H scratch-resistant glass with Always-On Display support	Flat Toughened Glass	Not Specified	2.5D Curved Scratch-Resistant Tempered Glass
Body
Dimensions	46.9 mm dial size	Standard 46mm dial size	Not Specified	46 x 46 x 11 mm (Approx)	46.5 x 46.5 x 11 mm	264.9 x 48.6 x 12.9 mm	44 x 40 x 13 mm	Dial Diameter: 36.3 mm
Weight	39 grams	60 g	117 grams	56.5 g	41 grams	Not Specified	31 grams	45 grams
Case Material	Metal with metallic finish	Stainless Steel / Metal Alloy	Stainless Steel	Zinc Alloy Frame	Zinc Alloy with electroplating and PVD coating	Rugged Metallic Alloy Middle Frame with Plastic Bottom	Acrylonitrile Butadiene Styrene (ABS) plastic	Metallic coated middle frame with a polycarbonate bottom plate
Front Protection	Curved tempered glass with anti-fingerprint coating	Curved Glass	Not Specified	Glass	7H Scratch-resistant glass	Toughened Flat Glass	Not Specified	2.5D Curved Tempered Glass
Strap / Bracelet Options	22mm silicone standard; metal mesh/chain and leather straps available separately	Silicone, Stainless Steel (variant dependent)	Stainless Steel Strap	Silicone, Metallic (variant dependent)	Silicone (standard, removable) or Stainless Steel optional bands, 22mm width, 150-230mm length	22mm Silicone Strap	Hypoallergenic silicone strap	Silicone and metal quick-release straps
Removable / Replaceable Strap	Yes	Yes	—	Yes	Yes	Yes	Not Specified	Yes
Water Resistance	IP68 - Up to 1.5m depth	IP68 Water Resistant	IP68	IP67 Water Resistant	IP68 + 5 ATM (up to 5 meters for 30 minutes)	IP68 water resistant up to 1.5m for 10 minutes	1 ATM (Up to 10m depth splash resistance)	IP68 rated splash and sweat resistance
Dust Resistance	IP68 certified	IP68 Dust Resistant	Yes (IP68)	IP67 Dust Resistant	IP68 dust and water resistant	Dust proof	Not Specified	IP68 rated dust protection
Durability Certifications	IP68 water and dust resistance certification	Not Specified	Not Specified	None	IP68 certified, Scratch resistant, Temperature range: -40°C to +70°C	IP68 Certified	IP Certified	IP68 certified water and dust resistance, scratch-resistant glass
Primary Controls	Functional rotating crown, side push button, touch screen	Rotating Crown, Touch Screen, Push Button	Touch Screen, Functional Crown	Touch Screen, Functional Crown, Push Button	Crown button on right side + 1 additional button + Capacitive touchscreen	Touch Screen, Functional Rotating Crown, Side Buttons	Touch screen and single physical side button	Capacitive touchscreen and single physical functional rotating crown
Processor
Operating System	Proprietary Noise OS (compatible with iOS 11.0+ and Android 9.0+)	Proprietary RTOS	Compatible with Android & iOS	Boult OS (RTOS)	Proprietary RTOS (Real-Time Operating System)	Proprietary RTOS	Proprietary Kids Smartwatch OS	Proprietary Real-Time Operating System
Chipset / SoC	Not Specified	Single Core Digital Chipset	Not Specified	Single-chip 2-in-1 Bluetooth SoC	ATS3085S (Dual-mode Bluetooth processor with MCU + DSP architecture)	Not Specified	Not Specified	Single-chip low-power Bluetooth Low Energy platform
CPU Cores & Clock Speed	Not specified	Single Core	Not Specified	Not Specified	Dual-core MCU + DSP	Not Specified (Optimized for low power)	Not Specified	Not Specified
GPU	Not Specified	Integrated	Not Specified	Not Specified	Not specified	—	—	—
Health & Fitness Sensors
Heart Rate Monitor	Yes - Optical PPG sensor with continuous and manual detection	Optical PPG Sensor	Yes, 24x7 Continuous monitoring	24/7 Heart Rate Monitor	24/7 continuous monitoring with abnormal HR alert	Continuous Optical Heart Rate Monitoring	Optical heart rate sensor	Optical on-wrist heart rate tracker
ECG	No ECG support	No	No	No	No ECG support	Not Available	Not Supported	No ECG hardware present
SpO₂ / Blood Oxygen	Yes - Optical SpO2 sensor	Yes	—	SpO2 Sensor	24/7 continuous blood oxygen monitoring	SpO2 Blood Oxygen Monitoring	SpO2 Blood Oxygen sensor	Blood oxygen saturation (SpO2) spot-check tracking
Skin Temperature Sensor	Not available	No	No	No	No skin temperature sensor	Not Available	Not Supported	No skin temperature sensor
Sleep Tracking	Yes - Detailed sleep stages (Light, Deep, REM)	Yes (Light, Deep, REM)	Yes	Sleep Monitor (Light, Deep, REM)	24-hour sleep monitoring with sleep stage analysis (light, deep, REM)	Sleep Stage Tracking (Light, Deep, REM)	Monitors sleep duration and quality	Light, Deep, REM, and Awake stages monitored (minimum 3 hours required)
Step Counter	Yes - Built-in pedometer	Yes	Yes	Yes	Yes - pedometer with step count tracking	Integrated Pedometer	Built-in pedometer	Integrated daily pedometer tracking
GPS	No built-in GPS - Connected GPS only via smartphone	No (Connected GPS only)	Connected GPS (via smartphone)	Connected GPS	No GPS (no built-in or connected GPS)	App-Powered GPS Tracking (Connected via Phone)	No built-in GPS tracking	No built-in standalone GPS; relies on connected mobile device
Accelerometer	Yes	Yes	Yes	Yes	Yes - 3-axis accelerometer	Tri-axial Accelerometer	3-axis accelerometer	Built-in 3-axis accelerometer sensor
Gyroscope	Yes	Not Specified	Not Specified	Not Specified	Yes - gyroscope sensor	Not Available	Not Specified	Integrated movement gyroscope sensor
Barometer	No	No	Not Specified	No	Yes - barometer for altitude tracking	Not Available	Not Supported	No built-in barometer
Compass	No	No	Yes	No	Yes - compass sensor	Not Available	Not Supported	No built-in digital compass
Other Sensors	Calorie burn estimation, activity history, stress measurement, menstrual cycle tracking, VO2 Max	Sedentary Reminder, Hydration Reminder	Stress Monitor, Calorie Counter	Blood Pressure (Simulated), Menstrual Cycle Tracker, Breath Training	Ambient light sensor, altimeter, stress monitor (HRV-based), menstrual cycle tracker	Stress Monitoring, Female Cycle Tracking	Step counter, Calorie tracker, Distance tracker	Heart rate, SpO2, sleep, stress, and activity tracker sensors
Connectivity
Wi-Fi	No Wi-Fi support	No	No	No	No Wi-Fi	No Wi-Fi support	Not Supported	No Wi-Fi connectivity support
Bluetooth	Bluetooth 5.3	Bluetooth 5.0	Bluetooth 5.3	Bluetooth 5.2	Bluetooth 5.3 with 10-meter connectivity range	Bluetooth version 5.4	Bluetooth v5.3	Bluetooth v5.3 / BLE 5.3
NFC	No	No	No	No	No	No	No	No
Cellular Connectivity	Wi-Fi Only (via smartphone)	No	No (Bluetooth calling only)	No	Bluetooth only (no cellular, Wi-Fi, or satellite)	None	No Cellular/SIM support	No independent cellular capabilities
ANT+	No	No	No	No	No	No	No	No
Battery
Capacity	300 mAh	300 mAh	Approximately 280-300 mAh	Not Specified (Approx 250-300mAh)	380 mAh Li-ion non-removable	410 mAh	270 mAh	300 mAh Lithium-Polymer battery
Fast Charging Support	No fast charging support	No	Yes	No	Yes - approximately 60 minutes for full charge	Full charge in approximately 50 minutes	Not Specified	Lacks fast charging protocol support
Estimated Runtime	Up to 7 days typical use, 30 days standby	Up to 7 Days (Typical)	Up to 5 days	Up to 5 Days (Typical)	14 days typical use, 20 days with custom battery mode, 5 days with Always-On Display, 38 days standby	7-10 days typical; 2-3 days calling	Up to 3 to 5 days on typical use	Up to 5 to 7 days under standard typical use; up to 4 days with constant call use
Charging Method	Magnetic 2-pin connector	Wireless Magnetic Dock	Magnetic charging cable	Magnetic Charging	Magnetic dock/wired connector	USB Magnetic 2-pin Pogo Cable	Magnetic Pogo Pin	Magnetic Pogo pin USB charger
Battery Saver Modes	Yes - Screen brightness reduction and selective heart rate monitoring	Power Saver Mode	Yes, multiple power saving modes available	Yes	Customizable ultra-long battery mode, AI-optimized battery mode, time-only mode	Automatic trigger at 10% battery	Scheduled Power Off	Customizable power saving profile
Memory & Storage
RAM	Not specified	System RAM only	128 MB	Not Specified	8 MB PSRAM	Not Specified	Not Specified	Not Specified
Internal Storage	Not specified	No user accessible storage	Not specified	Not Specified	4 GB Flash (500 MB user-accessible for music)	Flash memory for health data and contacts	Not Specified	Not Specified
Expandable Storage	No expandable storage	No	No	No	No microSD card slot	No	No	No local expandable storage support
Design & Comfort
Bezel Type	Fixed bezel with metallic finish	Fixed with Rotating Crown	Fixed bezel	Fixed	Fixed circular bezel with watch-inspired design	Fixed Rugged Bezel	Fixed bezel with switchable poppy bumpers	Fixed smooth outer dial frame
Buttons / Crown	Functional mechanical crown + side push button	1 Rotating Crown, 1 Push Button	Functional Crown (rotatable) + Side button	Rotating Crown + 1 Button	1 rotating crown button on right side + 1 additional action button	Functional Rotating Crown and 2 Physical Buttons	Single physical side button	One physical functional rotating crown control
Vibration Motor	Yes - Haptic feedback vibration alerts	Yes	Yes	Yes	Yes - haptic vibration motor	Haptic Vibration Motor	Built-in vibration for alerts	System haptic alert motor built-in
Screen Glass Type	Curved tempered glass	Glass	Not Specified	2.5D Glass	7H scratch-resistant mineral glass	Flat Toughened Glass	Not Specified	2.5D Scratch-Resistant Curved Tempered Glass
Health & Safety Features
Fall Detection / SOS Calling	Yes - SOS technology with emergency calling	No	SOS Calling Available	No	No fall detection or emergency SOS calling	SOS emergency calling via phone	On-device SOS button and manual emergency contact storage	One-touch manual emergency SOS alert triggering direct calls via connected phone
Menstrual Cycle / Health Tracking	Yes - Female health cycle tracker	Yes (Female Health Tracking)	Not Specified	Female Health Tracker	Yes - menstrual cycle tracking with prediction and period reminder	Female Wellness Tracking via App	Not Supported	Feminine physiological tracker with period logging and reminders
Noise Monitoring	No	No	Not Specified	No	Ambient volume monitoring (no formal noise exposure detection)	Not Available	No	No ambient noise detection or alerts
Guided Breathing / Mindfulness Features	Yes - Guided breathing practice feature	Breathing Exercises	Stress Tracking Available	Breath Training	Yes - guided breathing exercises and mindfulness reminders via Realme Link app	Guided Breathing / Relax Mode	Not Specified	Integrated guided inhale/exhale paced mindfulness exercises
Audio & Voice
Built-in Speaker	Yes	Yes	Yes	Yes	Yes - up to 90 dB speaker with 10-meter microphone pickup in quiet environments	Built-in speaker for Bluetooth calls	Built-in speaker for alerts and learning audio	Acoustic hardware speaker for hands-free Bluetooth calling
Microphone	Yes - Dual microphone setup	Yes	Yes	Yes	Yes - high-performance microphone for Bluetooth calling	Built-in microphone with ENx Noise Suppression	Built-in microphone for voice notes	Digital microphone for calls and voice commands
Voice Assistant	Yes - AI Voice Assistant with AI Search feature	AI Voice Assistant (Siri/Google via Phone)	AI Voice Assistant	Yes (AI Voice Assistant)	Yes - ChatGPT 3.5 powered AI assistant with voice-controlled watch face generation	Siri and Google Assistant supported	No	Supports voice assistant command processing through paired smartphone assistant (Google Assistant/Siri)
Bluetooth Audio Output	Yes - Bluetooth audio output for music control	Phone Calls Only	Yes	No	Yes - supports Bluetooth audio playback and streaming	Audio via watch speaker	No	No direct audio transmission to external wireless earphones from watch
Notifications & Controls
Notification Support	Call alerts, SMS/messaging alerts, social media app notifications	Call, SMS, WhatsApp, Social Media	Yes (all smartphone notifications)	Call, SMS, App Notifications	Call alerts, SMS/messaging alerts, app notifications, rich notifications	Alerts for calls, SMS, and app notifications	Call alerts, SMS/text alerts, and App notifications	Push alerts for calls, text SMS, and system apps
Quick Reply Options	Call rejection available (no voice/text reply)	No	Limited functionality (depends on phone OS)	No	Predefined messages only (no voice or custom text reply on watch)	Predefined quick reply for calls (Android only)	Not Specified	No predefined quick message replies or keyboards supported
Music Control / Playback	Yes - Play/Pause, Next/Previous Track, Volume Control	Music Control (Remote)	Yes	Music Control (Phone)	Play/Pause, Next/Previous track, Volume control, Local MP3 storage playback	Remote music control for phone	Remote music control for paired smartphone	Remote music playback controls for connected phone
Find My Phone	Yes - Find My Phone feature	Yes	Yes	Yes	Yes - Find My Phone feature via Realme Link app	Available via Bluetooth	Yes	Triggers phone ringtone via Bluetooth connection
Remote Camera Shutter	Yes - Remote camera control from watch	Yes	Yes (camera control)	Yes	Yes - remote camera shutter control	Remote shutter control for phone	Yes	Remote camera shutter triggering from watch touchscreen
Security
Fingerprint Sensor	No	No	No	No	No	No	No	No
Face Unlock	No	No	No	No	No	No	No	No
NFC Payment Security	No NFC support - no contactless payments	No	No (no NFC payment support)	No	No NFC payment capability	Not Available	No	No NFC payment support
Find My Watch	Not confirmed in specifications	Yes (via App)	Yes (via companion app)	Yes (via App)	Not officially specified	Available via boAt Crest App	Yes, via Noise Junior App	Initiates watch vibration and screen lighting via mobile app
Ports & Accessories
Charging Connector Type	Magnetic 2-pin proprietary connector	Wireless Charging Dock	Magnetic charging pins	Magnetic Pogo Pin	Proprietary magnetic dock connector	Magnetic Pogo Pin	Magnetic Pogo Pin	Dual contact magnetic Pogo pin charging connector
Optional Docks / Stands	Magnetic charging dock available separately	None	None available	None	N/A	Not Available	Not Specified	—
Bundled Extras	User manual, warranty card, charging cable	Charging Cable, Manual	Multiple strap color options available separately	Charging Cable, User Manual	Smartwatch, Charging Cable, User Manual, Silicone Strap; Extra straps available in multiple colors (sold separately)	1 Magnetic Charging Cable	1 Smartwatch, 1 Magnetic Charger, 2 Extra Switchable Bumpers, User Manual, Warranty Card	Includes retail box packaging, user instruction manual, warranty card, magnetic charging cable, and a protective silicone case cover
Software & Apps
App Store Availability	NoiseFit App on Google Play Store and Apple App Store	No	No dedicated app store	None	Realme Link app - available on Google Play Store and Apple App Store	No standalone app store	No proprietary watch app store	No on-device third-party app store compatibility
Customization Options	100+ cloud-based watch faces + AI Create feature for unlimited AI-powered custom watch face generation	100+ Cloud Watch Faces	100+ watch faces, customizable widgets	150+ Watch Faces, Menu Styles	150+ cloud-based watch faces, AI-generated custom watch faces via voice commands, 110+ pre-loaded sports modes (expandable to 130+), customizable tiles and quick access shortcuts	100+ Cloud Watch Faces, Customizable Watch Face Studio	100+ Cloud-based watch faces; 3-in-1 look via switchable bumpers	Custom cloud watch faces and DIY custom designs available through boAt Crest App Watch Face Studio
Companion App	NoiseFit App (iOS 11.0+ / Android 9.0+)	Fire-Boltt App / Da Fit	Fastrack Smart World App (Android & iOS)	Boult Fit (GoBoult Fit)	Realme Link (Android & iOS compatible)	boAt Crest App	Noise Junior App	boAt Crest companion application (Android 7.0+ / iOS 14.0+)
OTA Updates	Yes - OTA updates supported	Yes	Yes (via companion app)	Yes	Yes - Over-the-Air updates supported	Firmware updates via App	Supports over-the-air firmware updates	Wireless software upgrades supported through mobile application sync
Pre-installed Apps	NoiseFit Health Suite, AI voice assistant, activity tracking, weather app, calculator, stopwatch, timer, alarm, reminder, music control	Alarm, Stopwatch, Timer, Weather, Calculator, Games	100+ sports modes, health tracking, built-in games, calculator	Alarm, Stopwatch, Weather, Calculator, Games	ChatGPT 3.5 assistant, 110+ sports modes with auto-recognition, 150+ watch face library, health monitoring apps (HR, SpO2, sleep, stress tracking), Realme Link companion app	100+ Sports Modes, QR Tray, Weather, Calculator, Games	Learning Hub (Games, EduCards, Quizzes), Habit Builder, Smart Scheduler, Alarm, Timer, Stopwatch, Weather	Pedometer, Heart Rate Monitor, SpO2 Tracker, Sleep Monitor, Guided Breathing, Sports Tracking, Stop Watch, Alarm, Timer, Live Cricket Scores, Weather, Notification Sync, Camera and Music Remote Controllers, SOS Mode, Event Scheduler, Find My Phone, Watch Settings, 24-Hour Clock Layout