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