- Rating: 3.3
Key Features
7 Days Brand Replacement
Key Features
- 4.01 cms (1.58 Inches) Always-on Display
- Built-in Alexa | GPS Navigation
- SPO2 Monitor | Heart Rate | Sleep Monitor | Calorie Counter
- Upto 6 Days Battery Life
- 50m Water Resistant
- 12 Months Warranty
Specifications
Product Category
Wearable Device Type
- Smart Watch
Compatible Devices
- Smartphones
Ideal For
- Unisex
Suitable For
- Fitness | Outdoor | Indoor | Sports
Features
- Water Resistant | Heart Rate | Sleep Monitor | SPO2
Cellular Connectivity
- No
Connectivity Type
- Bluetooth + WI-FI
GPS Connection Type
- Glonass | GPS
Manufacturer Details
Brand
- Fitbit
Model Series
- Sense 2
Model Number
- FB521BKGB-FRCJK
Product Dimensions (Open)
Dimensions In CM (WxDxH)
- 4.03 x 4.03 x 1.21
Product Weight
- 40 g
Dimensions In Inches (WxDxH)
- 1.59 x 1.59 x 0.48
Features & Functions
Basic Features
- Alarm Clock | Date & Time
Health Tracker
- Heart Rate | SPO2 | Sleep Monitor | Calorie Count
Smartphone Application Controls
- Fitbit App
Smart Assistance & Control
- Alexa Built-in
Compatible OS
- iOS | Android OS
Sensors
- Multi-path Optical Heart Rate Sensor | Electrical Sensor To Measure Skin Conductance (cEDA) For Body Response Tracking | Multipurpose Electrical Sensors Compatible With ECG App & EDA App | Red And Infrared Sensors For Oxygen Saturation (SpO2) Monitoring | Altimeter | 3-axis Accelerometer | Skin Temperature Sensor | Ambient Light Sensor | Vibration Motor
Additional Features/Functions
- Built-in GPS + GLONASS | Daily Readiness Score | EDA Scan App for Stress Management | Find My Phone | Breathing Rate | Cardio Fitness Score | Relax Breathing Sessions | Stress Management Score
Physical Attributes
Dial Shape
- Square
Dial Color
- Graphite Aluminium
Band Color
- Shadow Grey
Band Fits Size
- Small: Fits wrist 129mm - 175mm | Large: Fits wrist 158mm - 209mm
Additional Body Features
- Operating temperature: -10� to 45� C
Mic Specifications
Built-in Mic
- Yes
Device Screen Specifications
Screen Size in CM
- 4.01 cm
Screen Size in Inches
- 1.58 Inches
Display
- LCD
Operating System
Sound
Speaker Availability
- Built-in Speakers
Additional Audio Features
- 75dB SPL @10cm
Network Connectivity
Wi-Fi Supported
- Yes
Bluetooth Supported
- Yes
Bluetooth Specifications
- Bluetooth 5.0
NFC
- Yes
Additional Features
Bluetooth Calling
- No
Battery Details
Battery Technology
- Lithium Polymer
Maximum Battery Life
- 6
Battery Type
- Non-Removable
Standard Battery Life
- Upto 6 Days | 5 Hours with Continuous GPS
Charging
Additional Charging Features
- Charge 12 minutes to get one day of battery life
Materials & Durability
Resistance Type
- Water Resistant
Resistance Features
- 50 metres
Aesthetics
Brand Color
- Shadow Grey/Graphite Aluminium
Color
- GREY
In The Box
Documents
- Warranty Card
Main product
- 1 x Wearable Smart Device U
Accessories
- Charging Cable
Generic Name
- Wearable Device
Packaged Dimensions
After Sales & Services
Warranty on Main Product
- 12 Months
Warranty Type
- Carry-In
Installation & Demo
- Not Applicable
Installation & Demo applicable
- No
Company Contact Information
Customer Support Number
- 080-00501057
Customer Support Email
- support@fitbit.com
Manufacturer/Importer/Marketer Name & Address
- Manufacturer Name & Address: Fitbit Inc., 199 Fremont Street, 14th Floor, San Francisco, CA 94105, USA | Importer Name & Address: Rashi Peripherals Pvt. Ltd., Rashi Complex A Building, Survey 186 Dongaripada, Ponam Village, Vasai Bhiwandi Road, Thane 401208, Maharashtra, India
Country of Origin
- Vietnam
Country of Brand Origin
- USA
Croma Service Promise
Customer Support Email
- customersupport@croma.com
Registered Name and Address
- Infiniti Retail Ltd. - Unit No. 701 & 702, 7th Floor, Kaledonia, Sahar Road, Andheri (East); Mumbai - 400069. India
Customer Support Number
- 1800 572 7662
Customer Care Contact Person
- Grievance Officer
Overview
Optimum Display
Sporting a large and vibrant 1.58-inch AMOLED display, the Fitbit Sense 2 1.58-inch Smartwatch provides a quick and effortless way to check your notifications, apps, and more. Moreover, this smartwatch sets itself apart with its smart design and square dial, making it a stylish addition to your accessory collection.
Real-Time Notifications
With this 1.58-inch smartwatch, you can conveniently check reject calls, take calls, speed dial and need not access your phone. So, when you're commuting on a packed train, your smartwatch makes sure that you stay informed without having to get your phone out of your pocket.
Hassle-Free Calls
Boasting Bluetooth v5.0 capabilities, this smartwatch enables you to call your friends and family without requiring your phone.
Built-in GPS
Whether you're cycling or running, the built-in GPS on this smartwatch keeps you on track.
Valuable Health Insights
The SpO2 sensor of this smartwatch provides real-time data on your blood oxygen levels, while the heart rate monitor helps you exercise safely. You can use the sleep monitor to track and enhance your sleep quality for a more productive day.
Alexa Voice Assistant
Thanks to the Alexa voice assistant, you can navigate through this smartwatch's functions and obtain information with ease.
Long Battery Life
Powered by a robust battery, this smartwatch offers a runtime of up to 6 days, allowing you to enjoy continuous usage without frequent recharging. Furthermore, you can recharge this smartwatch to 1 within 2 hours.
Fitbit App
With the Fitbit App, you can seamlessly sync and manage data from your smartwatch, including health metrics, activity logs, and notifications, all in one convenient place.
Water-Resistant Design
Designed to be water resistant, this Fitbit smartwatch ensures reliability even in challenging conditions.





