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

Specification	Realme Watch S2 ₹2,799 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
General
In The Box	Smartwatch, Charging Cable, User Manual, Silicone Strap	Smart Watch, Magnetic Charging Cable, User Manual, Warranty Card
Model Name	Realme Watch S2	Fastrack Astor FR2 Pro
Launch Date	30/07/2024	15/09/2024
Colors	Midnight Black, Ocean Silver, Metallic Grey	Black, Silver, Rose Gold, Grey
Brand	Realme	Fastrack
Display
Display Size	1.43, 3.63	1.43, 3.63
Resolution	466, 466 pixels	466, 466 pixels
Panel Type	AMOLED with 326 ppi density	AMOLED
Touch Type	Capacitive multi-touch	Capacitive Touch
Always-on Display	Yes	—
Brightness	600 nits peak brightness	Not Specified
Refresh Rate	60 Hz	Not Specified
Color Gamut / HDR Support	Full color AMOLED (HDR not specified)	—
Screen Protection	7H scratch-resistant glass with Always-On Display support	Not Specified
Body
Dimensions	46.5 x 46.5 x 11 mm	Not Specified
Weight	41 grams	117 grams
Case Material	Zinc Alloy with electroplating and PVD coating	Stainless Steel
Front Protection	7H Scratch-resistant glass	Not Specified
Strap / Bracelet Options	Silicone (standard, removable) or Stainless Steel optional bands, 22mm width, 150-230mm length	Stainless Steel Strap
Removable / Replaceable Strap	Yes	—
Water Resistance	IP68 + 5 ATM (up to 5 meters for 30 minutes)	IP68
Dust Resistance	IP68 dust and water resistant	Yes (IP68)
Durability Certifications	IP68 certified, Scratch resistant, Temperature range: -40°C to +70°C	Not Specified
Primary Controls	Crown button on right side + 1 additional button + Capacitive touchscreen	Touch Screen, Functional Crown
Processor
Operating System	Proprietary RTOS (Real-Time Operating System)	Compatible with Android & iOS
Chipset / SoC	ATS3085S (Dual-mode Bluetooth processor with MCU + DSP architecture)	Not Specified
CPU Cores & Clock Speed	Dual-core MCU + DSP	Not Specified
GPU	Not specified	Not Specified
Health & Fitness Sensors
Heart Rate Monitor	24/7 continuous monitoring with abnormal HR alert	Yes, 24x7 Continuous monitoring
ECG	No ECG support	No
SpO₂ / Blood Oxygen	24/7 continuous blood oxygen monitoring	—
Skin Temperature Sensor	No skin temperature sensor	No
Sleep Tracking	24-hour sleep monitoring with sleep stage analysis (light, deep, REM)	Yes
Step Counter	Yes - pedometer with step count tracking	Yes
GPS	No GPS (no built-in or connected GPS)	Connected GPS (via smartphone)
Accelerometer	Yes - 3-axis accelerometer	Yes
Gyroscope	Yes - gyroscope sensor	Not Specified
Barometer	Yes - barometer for altitude tracking	Not Specified
Compass	Yes - compass sensor	Yes
Other Sensors	Ambient light sensor, altimeter, stress monitor (HRV-based), menstrual cycle tracker	Stress Monitor, Calorie Counter
Connectivity
Wi-Fi	No Wi-Fi	No
Bluetooth	Bluetooth 5.3 with 10-meter connectivity range	Bluetooth 5.3
NFC	No	No
Cellular Connectivity	Bluetooth only (no cellular, Wi-Fi, or satellite)	No (Bluetooth calling only)
ANT+	No	No
Battery
Capacity	380 mAh Li-ion non-removable	Approximately 280-300 mAh
Fast Charging Support	Yes - approximately 60 minutes for full charge	Yes
Estimated Runtime	14 days typical use, 20 days with custom battery mode, 5 days with Always-On Display, 38 days standby	Up to 5 days
Charging Method	Magnetic dock/wired connector	Magnetic charging cable
Battery Saver Modes	Customizable ultra-long battery mode, AI-optimized battery mode, time-only mode	Yes, multiple power saving modes available
Memory & Storage
RAM	8 MB PSRAM	128 MB
Internal Storage	4 GB Flash (500 MB user-accessible for music)	Not specified
Expandable Storage	No microSD card slot	No
Design & Comfort
Bezel Type	Fixed circular bezel with watch-inspired design	Fixed bezel
Buttons / Crown	1 rotating crown button on right side + 1 additional action button	Functional Crown (rotatable) + Side button
Vibration Motor	Yes - haptic vibration motor	Yes
Screen Glass Type	7H scratch-resistant mineral glass	Not Specified
Health & Safety Features
Fall Detection / SOS Calling	No fall detection or emergency SOS calling	SOS Calling Available
Menstrual Cycle / Health Tracking	Yes - menstrual cycle tracking with prediction and period reminder	Not Specified
Noise Monitoring	Ambient volume monitoring (no formal noise exposure detection)	Not Specified
Guided Breathing / Mindfulness Features	Yes - guided breathing exercises and mindfulness reminders via Realme Link app	Stress Tracking Available
Audio & Voice
Built-in Speaker	Yes - up to 90 dB speaker with 10-meter microphone pickup in quiet environments	Yes
Microphone	Yes - high-performance microphone for Bluetooth calling	Yes
Voice Assistant	Yes - ChatGPT 3.5 powered AI assistant with voice-controlled watch face generation	AI Voice Assistant
Bluetooth Audio Output	Yes - supports Bluetooth audio playback and streaming	Yes
Notifications & Controls
Notification Support	Call alerts, SMS/messaging alerts, app notifications, rich notifications	Yes (all smartphone notifications)
Quick Reply Options	Predefined messages only (no voice or custom text reply on watch)	Limited functionality (depends on phone OS)
Music Control / Playback	Play/Pause, Next/Previous track, Volume control, Local MP3 storage playback	Yes
Find My Phone	Yes - Find My Phone feature via Realme Link app	Yes
Remote Camera Shutter	Yes - remote camera shutter control	Yes (camera control)
Security
Fingerprint Sensor	No	No
Face Unlock	No	No
NFC Payment Security	No NFC payment capability	No (no NFC payment support)
Find My Watch	Not officially specified	Yes (via companion app)
Ports & Accessories
Charging Connector Type	Proprietary magnetic dock connector	Magnetic charging pins
Optional Docks / Stands	N/A	None available
Bundled Extras	Smartwatch, Charging Cable, User Manual, Silicone Strap; Extra straps available in multiple colors (sold separately)	Multiple strap color options available separately
Software & Apps
App Store Availability	Realme Link app - available on Google Play Store and Apple App Store	No dedicated app store
Customization Options	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+ watch faces, customizable widgets
Companion App	Realme Link (Android & iOS compatible)	Fastrack Smart World App (Android & iOS)
OTA Updates	Yes - Over-the-Air updates supported	Yes (via companion app)
Pre-installed Apps	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, health tracking, built-in games, calculator