Features

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Camera and Display Features
Display Resolution 240x180 pixels  320 x 290 Pixels  312 x 390 Pixels  454 x 454 Pixels
Display Size 1.25 inch  1.73 inch  1.65 inch  1.77 inch
Display Type OLED  OLED  OLED Retina Display 
Backlight Display Yes
Scratch Resistant Yes Yes
Other Display Features Ion-X (Strengthened Glass), Support Force Touch 
Fitness and Watch Functions
Calorie Count Yes Yes Yes Yes
Step Count Yes Yes Yes Yes
Heart Rate Monitor Yes No  Yes Yes
Other Fitness Features Built in Fitness Tracker: Sleep, Steps Count, Distance anView More... Built in Fitness Tracker: Steps Count, Distance and CalorView More...
Date & Time Display Date & Time  Yes Yes Yes
Calendar Yes Yes Yes Yes
Alarm Clock Yes Yes Yes Yes
Language English 
Number of Buttons 3  2  3
Other Watch Functions Auto Update Time and Date, Customizable Watch Faces  Personalize Dial, Control Music, Calendar Alerts, Social  View More...
Altimeter Yes
Dimensions
Diameter 42 mm 
Other Dimensions Strap Length: 195 to 205 mm, Strap Thickness: 22 mm, CaseView More...
Width 43 mm 
Warranty
Warranty Summary 1 Year Manufacturer's Domestic Warranty  2 Years Warranty  1 Year Warranty  2 Years Warranty
Warranty Service Type Carry In  Carry In  Carry In
Covered in Warranty 1 Year Manufacturer Warranty from the Date of Purchase  Manufacturing Defects  Manufacturing Defects  Manufacturing Defects
Not Covered in Warranty Physical Damage  Physical Damage  Physical Damage
Domestic Warranty 1 Year  2 Year
Audio and Video Features
Microphone Yes
Voice Control Yes
General
Sales Package Smartwatch, User Manual, Charger, Dongle  Smartwatch, Wireless Charger, Quick Start Guide  Smartwatch, Magnetic Charging Cable (1 m), Band, Quick StView More... Smartwatch, Charger, User Manual
Model Number FB502SBKL  FTW6003  MTF32HN/A  FTW4011
Model Name Blaze  Q Venture  Watch Series 3 GPS -  4th Gen Explorist HR
Dial Shape Square  Circle  Rectangle  Circle
Strap Color Black  Silver  Black  Silver
Strap Material Elastomer  Stainless steel  Silicone  Stainless steel
Size Large  Regular  Regular  Regular
Touchscreen Yes Yes Yes Yes
Water Resistant Yes Yes Yes Yes
Usage Fitness & Outdoor  Notifier  Notifier, Fitness & Outdoor  Fitness & Outdoor
Ideal For Unisex  Unisex  Unisex  Men
Dial Color Black  Space Grey 
Water Resistance Depth 10000 mm  1 m  50 m  30 m
Dial Material Metal Case  Steel  Aluminium Case 
Product Details
Closure Metal Clasp  Strap Buckle  Metal Clasp
Sensor 3-axis accelerometer, 3-axis gyroscope, Optical heart ratView More... Accelerometer, Gyroscope, Light Sensor, Optical Sensor  Barometric Altimeter, Heart Rate Sensor, Accelerometer, GView More... Accelerometer, Ambient Light, Gyroscope, Heart Rate
Compatible Device iPhone, Android Smartphones  iPhone 5, 5c, 5s, SE, 6, 6 Plus, 6s, 6s Plus, 7 , 7 Plus,View More... iPhone, Android Smartphones
Notification Calendar Reminder, Call Notification, Text Notification  Social Media, Text, Email, App Alerts, Calendar RemindersView More... Messages, Calendar, Mail  Yes
Notification Type Vibration 
Battery Type Lithium Polymer  Lithium Ion  Lithium Ion 
Battery Life Upto 5 Days  24 Hours (Based on Usage)  Upto 18 hours  Upto 24 hrs (Based on Usage)
Rechargeable Battery Yes Yes Yes Yes
Charger Type USB Cable  Wireless Charger (USB Type) 
Other Features Track Steps, Distance, Calories Burned, Floors Climbed anView More... Support Interchangeable Watch Bands, IP67 Water ResistantView More... Interchangeable Watch Band
Charge Time 120 min  120 min  90 min  2 hrs
Stand By Time 120 hr 
Platform and Storage Features
Compatible Operating System Android 4.3, iOS, Windows 7 and Above  Android 4.3 or Later and iOS 9 or Later  iOS 10 and Above  Android 4.4 and Above (Excluding Go Edition) and iOS 9.3  View More...
Operating System Fitbit OS  Android Wear 2.0  watchOS 4  Wear OS by Google
RAM 512 MB  512 MB
Processor Name Qualcomm Snapdragon Wear 2100  S3  Qualcomm Snapdragon Wear 2100
Internal Memory 4 GB  8 GB  4 GB
Number of Cores Dual Core 
Connectivity Features
Call Function No  No  No  No
Bluetooth Yes Yes Yes Yes
Wi-Fi Yes Yes Yes No
GPS No  Yes Yes
Bluetooth Version v4.0  v4.1  v4.2  v4.1
Other Connectivity Features Wi-Fi (802.11b/g/n)  Wi-Fi (802.11b/g/n 2.4 GHz) 
Email Support Yes
Operating Range 3 m 
Third Party App Support Yes