Features

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Camera and Display Features
Display Resolution 240 x 180 Pixels  360 x 360 Pixels  454 x 454 Pixels  300 x 300 Pixel
Display Size 1.25 inch  1.33 inch  1.77 inch  1 inch
Display Type LCD  Super AMOLED 
Backlight Display Yes Yes Yes Yes
Scratch Resistant Yes Yes
Other Display Features Always-on Color Display with Scratch Resistant Gorilla GlView More...
Fitness and Watch Functions
Calorie Count Yes Yes Yes Yes
Step Count Yes Yes Yes Yes
Heart Rate Monitor Yes Yes Yes Yes
Other Fitness Features Sleep Monitoring  Tracks: Distance, Pace, Steps, Sleep Quality, Calories BuView More... Track Steps, Distance, Heart Rate 24/7, Cardio Fitness Le View More...
Date & Time Display Yes Yes Yes Yes
Calendar Yes Yes Yes Yes
Alarm Clock Yes Yes Yes Yes
Language English  English
Number of Buttons 3  2  3  1
Other Watch Functions Customizable Watch Faces, Calendar Alerts, Receive NotifiView More... Personalize Dial, Control Music, Calendar Alerts, Social View More... Customisable Watch Faces, Smart Notification
Altimeter Yes
Dimensions
Weight 303.3 g  63 g  40 g
Warranty
Warranty Summary 1 Year Warranty  1 Year Warranty  2 Years Warranty  1 Year Warranty Provided by the Manufacturer from Date of View More...
Warranty Service Type Carry In  Carry In  Carry In  Carry In
Covered in Warranty Manufacturing Defects  Manufacturing Defects  Manufacturing Defects  Manufacturing Defects
Not Covered in Warranty Physical Damage  Physical Damage  Physical Damage  Physical Damage
Domestic Warranty 1 Year  1 Year  2 Year  1 Year
International Warranty 1 Year 
Audio and Video Features
Microphone Yes
Voice Control Yes
General
Sales Package Smartwatch, Charger, User Manual  Smartwatch, Charging Dock, Travel Adapter, Strap, Quick SView More... Smartwatch, Charger, User Manual  Smartwatch, Charging Cable, User Manual
Model Number FB503GYBK  SM-R800NZSAINU  FTW4011  FB415SRGY
Model Name Ionic  Galaxy Watch 46 mm  4th Gen Explorist HR  Versa Lite Edition
Dial Shape Square  Circle  Circle  Square
Strap Color Black  Black  Silver  Grey
Strap Material Elastomer  Elastomer  Stainless steel  Silicone
Size Regular  Regular  Regular  Regular
Touchscreen Yes Yes Yes Yes
Water Resistant Yes Yes Yes Yes
Usage Notifier, Fitness & Outdoor  Fitness & Outdoor  Fitness & Outdoor  Fitness & Outdoor
Ideal For Unisex  Men  Men  Unisex
Dial Color Black
Water Resistance Depth 50 m  50 m  30 m  50 m
Product Details
Closure Strap Buckle  Metal Clasp  Strap Buckle
Sensor 3-axis Accelerometer, 3-axis Gyroscope, Optical Heart RatView More... 3-axis Accelerometer, Ggyro, Barometer, Heart Rate SensorView More... Accelerometer, Ambient Light, Gyroscope, Heart Rate  3-axis Accelerometer, Optical Heart Rate Sensor, Relative View More...
Compatible Device iPhone, Android Smartphones  iPhone, Android Smartphones  iPhone, Android Smartphones  iPhone, Android Smartphones
Notification Yes Yes Yes Yes
Notification Type Text and Calender Alerts  Vibration  Vibration
Battery Type Lithium Polymer  Lithium Polymer  Lithium Ion
Battery Life Upto 6 Days (Based on Usage)  Upto 3 Days (Based on Usage)  Upto 24 hrs (Based on Usage)  Upto 4 Days (Based on Usage)
Rechargeable Battery Yes Yes Yes Yes
Charger Type WPC Based Wireless Charging  Charging Cable
Other Features Wireless Syncing  22 mm Interchangeable Strap, 472 mAh Battery, US MilitaryView More... Interchangeable Watch Band  Connected GPS, Reminders to Move, Silent Alarm, Text and  View More...
Maximum Operating Altitude 9144 m 
Charge Time 120 min  2 hrs  2 hrs
Platform and Storage Features
Compatible Operating System Android & iOS  Android & iOS  Android 4.4 and Above (Excluding Go Edition) and iOS 9.3 View More... Android & iOS
Operating System Fitbit OS  Tizen Wearable OS  Wear OS by Google 
RAM 512 MB 
Processor Name Exynos 9110 Dual Core Processor  Qualcomm Snapdragon Wear 2100 
Internal Memory 4 GB  4 GB 
Number of Cores 2 
Processor Speed 1.15 GHz 
Connectivity Features
Call Function No  No  No  No
Bluetooth Yes Yes Yes Yes
Wi-Fi Yes Yes No 
GPS Yes Yes Yes
Bluetooth Version v4.0  v4.2  v4.1  v4.0
Other Connectivity Features Wi-Fi (802.11b/g/n)  NFC, Wi-Fi (802.11b/g/n) 
Messaging Support No 
Call Features Incoming Call Alerts 
Email Support Yes
Third Party App Support Yes Yes