Overview

  • Always-on Wellness Tracking
    By watching for changes in your resting heart rate, blood oxygen, skin temperature & more, you can get to know your body and do what’s best for it.³
  • Stress Management Score
    See how well your body is handling stress with this daily personalized score. A high score means you’re ready to tackle big things, while a low score is your body asking for some self-care.
  • Daily Readiness Score
    Based on your stress, sleep & activity, Daily Readiness Score tells you what your body can handle so you can dial your workout plans up or down. Because when you listen to your body, you see better results.
  • Up to 10-day Battery Life
    Over a week of battery life for more go, more flow, more whoa. Varies with use and other factors.
  • Active Zone Minutes
    Active Zone Minutes tracks the time you spend in your target heart rate zones, so when you work out harder, you get credit. Workouts in cardio or peak zones earn you double the minutes.
  • Irregular Heart Rhythm Notifications
    Check for signs of an irregular heart rhythm that may be atrial fibrillation (AFib), and share any notable results with your doctor.⁴
  • High & Low Heart Rate Notifications
    If your heart rate goes above or below your usual range while you’re at rest, your Fitbit Inspire 3 will send you a notification because an unusually high or low heart rate could mean something’s up.
  • Mindfulness Sessions
    Check your stress at the door. Google Health’s mindfulness sessions teach you healthier ways to respond to stress so you feel cool, calm and in control.⁵
  • Blood Oxygen (SpO2)
    This number tells you how well oxygen is distributed in your body. Make it easy to track your blood oxygen levels so you can learn when there may be an important change in your well-being.⁶
  • Unlock three months of Google Health Premium
    A health coach built with Gemini to deliver proactive, personal, and adaptive guidance for the whole you.²,⁷

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Specifications

Capacity & configuration

Band Type
Classic
Clasp Type
Buckle
Display Type
PMOLED
Alert Type
Vibration
Replaceable Battery
No

Dimensions & weight

Product Name
Fitbit Inspire 3 Health & Fitness Tracker - Works with Android and iOS
Maximum Depth of Water Resistance
164 feet
Product Height
0.4 inches
Product Width
0.7 inches
Product Weight
0.039 ounces
Product Length
5.9 inches
Product Type
Activity tracker

Features

Color
Midnight Zen - Classic - Midnight Zen, Morning Glow - Classic - Morning Glow, Lilac Bliss - Classic - Lilac Bliss
Brand
Google
Case Shape
Rectangular
Band Color
Midnight Zen
Display Screen
Yes
Touch Screen
Yes
Color Display
Yes
Clock Display
Yes
Backlit Display
Yes
Adjustable Brightness
Yes
Customizable Watch Faces
Yes
Operating System Compatibility
Android
Wireless Connectivity
Bluetooth
Built-in Storage
0 gigabytes
GPS Enabled
No
Mobile Notifications
Yes
Silent Alarm
Yes
Metrics Measured
Activity vs. inactivity
Multi-Sport Tracking
Yes
Sensors
Accelerometer
Protective Qualities
Water resistant
Minimum Operating Temperature
32 degrees fahrenheit
Maximum Operating Temperature
104 degrees fahrenheit
Minimum Wrist Size
137.16 millimeters
Maximum Wrist Size
220.98 millimeters
Size
Adjustable
Band Size
Adjustable
Rechargeable
Yes
Charging Interface(s)
USB-A
Battery Chemistry
Lithium-polymer
Band Material
Silicone
Form Factor
Wristband
Year of Release
2022
Series
Inspire 3
UPC
810073611573, 810073611580, 810073611597

Power & warranty

Model Number
FB424BKBK-US
Model Family
Fitbit Inspire 3
Warranty - Parts
1 year limited
Warranty - Labor
1 year limited

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
DisappointedNov 3, 2026 · Verified purchase ★☆☆☆☆

HATE THIS WATCH!!!! - It decidesto turn on a function all on its own and I can't get it back to the time function. Barely functions as a watch, which was my primary use for it. This morning it started a stop watch all on its own and I couldn't get it to go back to the watch face, I threw it awa. A waste of money!

CARLABOct 31, 2026 · Verified purchase ★★★★★

Fitbit Inspire 3 - This is my first health tracker. I wanted a basic model that would be easy to use and comfortable to wear. I love the smaller size and shape, works perfect for me. It was easy to get started and any questions I had were easy to find online. It's helping me to focus on my fitness goals and the sleep tracker is fun to check every morning. I'm kind of driving my husband crazy rattling off my numbers. So far the battery life is great. I'm really enjoying my Fitbit. I kind of question the exact accuracy because sometimes it shows some steps in the morning I know I haven't taken. But for what I'm using it for I don't mind some inaccuracies and I figure it's close enough, especially at this price point.

SavageShadowOct 31, 2026 · Verified purchase ★★★★★

Perfect peace of mind for the family - Bought this for my mom, and she has been using it every single day to track her health and activity. It's user-friendly enough for her to wear comfortably all day long. The best part for me is the safety alerts/fall features—since she lives over an hour away, having that extra layer of protection really helps put my mind at ease. Highly recommend it if you're looking for something reliable for a parent or family member!

JUDITHMOct 30, 2026 · Verified purchase ★★★★★

Quick Startup - I like the quick startup to using the app. Helpful integration with other fitness apps and health monitoring. I have been using it for a month and it is helpful to track fitness and sleep patterns.

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Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat