Skip to main contentSkip to footer

Explore more like this

Slide 1 of 9

Overview

This is a Refurbished product in Excellent condition.

It has been tested for 100% functionality, carefully cleaned, and has few to no visible signs of wear. Includes 1-year warranty.

The Fitbit Sense 2 Smartwatch with Heart Rate Monitor is a smartwatch built around all-day health and wellness tracking. It works with Android and iPhone. Water resistance to 50 m covers active days.

  • Blood oxygen (SpO2) readings add a fuller view of your wellness trends
  • Built-in GPS tracks routes and distance without your phone
This description was generated by AI and reviewed for accuracy.
Refurbished Excellent

Refurbished (Excellent) - Fitbit Sense 2 Smartwatch with Built-in GPS, Heart Rate Monitor, SpO2

Brand: Fitbit
Model: FB521
Web Code: 19468509
Sold and shipped by | 4.4 seller rating (59 reviews)

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

Check with the manufacturer for details.

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

What you need to know
  • Tracks your health and wellness through the day and night
  • Works with Android and iPhone; a companion app is needed for some features
  • Follow heart rate, sleep, blood oxygen throughout the day
  • Built-in GPS maps your routes from the watch
  • Refurbished: inspected and restored to working condition
Stay connected from your wrist

Message, call and app notifications from your phone appear on your wrist.

Follow wellness insights

Heart rate monitoring gives visibility into your daily trends. Blood oxygen (SpO2) readings add another view of your wellness. Stress tracking helps you see how your day is affecting you. Health and wellness data is intended as an estimate of tracked metrics and is not intended for medical use.

Follow your sleep patterns

Sleep tracking gives you visibility into your rest from night to night.

Track routes with GPS

Built-in GPS tracks your routes and distance directly from the watch.

Built for active days

Water resistance to 50 m covers swimming and showers.

Designed for everyday wear

A slim, lightweight profile keeps it comfortable all day.

Compatible smartphone or companion app may be required for certain features.

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

Free standard shipping may be available on orders over a minimum amount (before taxes, fees, and promo codes). Shipping charges may vary based on item size and your shipping address. Want a shipping charge estimate? Simply add an item to your cart, then access the cart and enter your postal code in the shipping estimate section.

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*:
  • Quebec
*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

Learn more about returning a Marketplace product