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Overview

This is a Refurbished product in Good condition.

It has been tested for 100% functionality, carefully cleaned, and has light signs of wear or micro-scratches. Includes a minimum 90-day warranty.

The Fitbit Sense 2 smartwatch combines all-day stress detection with heart, sleep and activity tools. Use the ECG app for atrial fibrillation assessment, follow irregular heart rhythm notifications and view SpO2 and health metrics.
  • Battery life is 6+ days
  • Water resistance to 50 metres
This description was generated by AI and reviewed for accuracy.
Refurbished Good

Refurbished (Good) - FITBIT Sense 2 Smartwatch with Bluetooth Calling, GPS, ECG and SpO₂ Monitoring

Brand: Fitbit
Model: FB521
Web Code: 17854318
Sold and shipped by | 4.4 seller rating (500 reviews)

Sale ends: *

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Seller Return Policy

Read return policy

Warranty Information

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

This Refurbished product:
  • Has been inspected to ensure 100% functionality.
  • Has very light signs of wear, like scratches and/or scuff marks in non-visible areas.
  • Possible uneven light diffusion or subtle scuffs on screen, not visible when screen is on.
  • Includes all required accessories.
  • Includes a minimum 90-day warranty.
  • Comes in generic packaging.
  • May be eligible for return. See the Return Policy tab for details.
What you need to know
  • The Fitbit Sense 2 combines health, stress, sleep and activity tracking
  • Refurbished (Good)
  • Compatible smartphone or companion app may be required for certain features
  • More than 40 exercise modes and built-in GPS support workouts
Follow wellness insights
  • CEDA supports all-day stress detection and Daily Stress Management Score
  • An ECG app supports atrial fibrillation assessment, with irregular heart rhythm notifications
  • SpO2, Health Metrics Dashboard, menstrual health tracking and mindfulness content are included
  • Health and wellness data is intended as an estimate of tracked metrics and is not intended for medical use
Follow your sleep patterns
  • Personalized Sleep Profile, sleep stages, Sleep Score, Smart Wake alarm and Do Not Disturb mode are included
Support workouts and training
  • Daily Readiness Score and Active Zone Minutes support workout and recovery planning
  • More than 40 exercise modes, automatic exercise tracking, all-day activity tracking and 24/7 heart rate are included
Track routes with GPS
  • Built-in GPS and Workout Intensity Map are included
Stay connected from your wrist
  • On-wrist Bluetooth calls, text and phone notifications are supported
Use smart tools on the go
  • Customizable clock faces, Fitbit Pay, built-in Amazon Alexa, Google Wallet and Maps are included
  • Google Maps qualifier: Android only, coming Spring 2023 to iOS
  • Includes a six-month Premium membership for deeper insights, guidance, exclusive workouts and mindfulness sessions
  • Subscription terms may apply to certain features and services
Built for active days
  • The slim watch is water resistant to 50 metres
Power through your day
  • Battery life is 6+ days
This description was generated by AI and reviewed for accuracy.
Trade in

Trade in your smartwatch for a Best Buy gift card.*

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Information about the manufacturer’s availability guarantee can be found .

Shipping Charges

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Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Smartwatches
Return/Exchange Period
30 days
Condition
Opened

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