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Welcome to Fitbit Blaze, the smart fitness watch that helps you meet your fitness goals in style. Take a moment to review our complete safety information at fitbit.com/safety.
Your Blaze box includes:
The detachable bands on Blaze come in a variety of colors and materials, sold separately.
A fully-charged Blaze has a battery life of up to 5 days. Battery life and charge cycles vary with use and other factors; actual results will vary.
To charge Blaze:
Charging fully takes 1 to 2 hours. While the tracker charges, you can check the clock by tapping the screen, use notifications, and control music. A bright battery icon in the top left of the screen shows the battery level. You can also check battery level while charging by opening then closing the cradle cover to see a larger icon.
Set up Blaze with the Fitbit app for iPhones and iPads or Android phones. The Fitbit app is compatible with most popular phones and tablets. For more information, see fitbit.com/devices.
To get started:
When you're done with setup, read through the guide to learn more about your new tracker and then explore the Fitbit app.
For more information, see help.fitbit.com.
Open the Fitbit app on your phone to view your activity and sleep data, log food and water, participate in challenges, and more.
Place Blaze around your wrist. If you purchased another band, see the instructions in "Change the band".
When you're not exercising, wear Blaze a finger's width above your wristbone.
For optimized heart-rate tracking while exercising:
For greater accuracy, you must specify whether you wear Blaze on your dominant or non-dominant hand. Your dominant hand is the one you use for writing and eating. To start, the Wrist setting is set to non-dominant. If you wear Blaze on your dominant hand, change the Wrist setting in the Fitbit app:
From the Today tab in the Fitbit app, tap your profile picture > Blaze tile > Wrist > Dominant.
The wristband has two separate bands (top and bottom) that you can swap with accessory bands sold separately.
Remove a band
Attach a new band
Before you attach a new wristband, first identify the top and bottom bands. The top band has a watch buckle at the end of it. The bottom band has notches.
To attach the band:
Learn how best to navigate, check the battery level, and care for your tracker.
Blaze has a color LCD touch screen and 3 buttons.
Navigate Blaze by swiping side to side, up and down, or pressing a button. To preserve battery, the tracker's screen turns off when not in use.
Basic navigation
The home screen is the clock.
When looking at any menu screens, a small icon on the top left shows your battery level. If the battery is low, you'll see a battery icon on the clock face.
Blaze comes with several clock faces. To change your clock face:
Manage basic settings including brightness, heart-rate tracking, and Quick View directly on your tracker. Open the Settings menu and tap a setting to adjust it. Swipe up to see the full list of settings.
It's important to clean and dry Blaze regularly. For more information, see fitbit.com/productcare.
Blaze can show call, text, calendar, and app notifications from your phone to keep you informed. Keep your tracker within 30 feet of your phone to receive notifications.
Check that Bluetooth on your phone is on and that your phone can receive notifications (often under Settings > Notifications). Then set up notifications:
Note that if you have an iPhone, Blaze shows notifications from all calendars synced to the Calendar app. If you have an Android phone, Blaze shows calendar notifications from the calendar app you choose during setup.
For more information, see help.fitbit.com.
When your phone and Blaze are within range, a notification causes the tracker to vibrate. If you don't read the notification when it arrives, you can check it later by swiping up on the clock screen.
Blaze stores up to 30 notifications, after which the oldest are replaced as you receive new ones. Notifications delete automatically after 24 hours. Your tracker can show up to 32 characters of a subject and up to 160 characters of a text message
To manage notifications:
Turn off certain notifications in the Fitbit app, or turn off all notifications in the quick settings on Blaze. When all notifications are turned off, your tracker won't vibrate and the screen won't turn on when your phone receives a notification.
To turn off certain notifications:
To turn off all notifications:
Note that if you use the Do Not Disturb setting on your phone, you don't receive notifications on your tracker until you turn off this setting.
If paired to an iPhone, Blaze lets you accept or reject incoming phone calls.
To accept a call, tap the green phone icon on your tracker's screen. Note that you can't speak into the tracker—accepting a phone call answers the call on your nearby phone. To reject a call, tap the red phone icon to send the caller to voicemail.
The caller's name appears if that person is in your contacts list; otherwise you see a phone number.
Alarms vibrate to wake or alert you at a time you set. Set up to 8 alarms to occur once or on multiple days of the week. You can also time events with the stopwatch or set a countdown timer.
Set, manage, and delete alarms in the Alarms menu on your tracker. When an alarm goes off, your tracker vibrates. To dismiss the alarm, tap the check mark. To snooze the alarm for 9 minutes, tap the ZZZ icon. You can snooze as many times as you like. Note that your tracker will go into snooze mode automatically if you ignore the alarm for more than 1 minute.
For more information, see help.fitbit.com.
To set a timer or use the stopwatch, open the Timer menu. Swipe left or right to choose between the timer and stopwatch.
Blaze continuously tracks a variety of stats whenever you wear it. Data automatically syncs when in range of the Fitbit app throughout the day.
From the clock face, swipe left to the Today screen. Tap it and swipe up to see your daily stats:
Find your complete history and other information detected by your tracker, such as sleep data, in the Fitbit app.
Blaze tracks your progress toward a daily activity goal of your choice. When you reach your goal, your tracker vibrates and shows a celebration.
Choose a goal
Set a goal to help you get started on your health and fitness journey. To begin, your goal is 10,000 steps per day. Choose to increase or decrease the number of steps, or to change your goal to distance, calories burned, active minutes, or floors climbed.
For more information, see help.fitbit.com.
Blaze helps you stay active throughout the day by keeping track of when you're stationary and reminding you to move.
Reminders nudge you to walk at least 250 steps each hour. You feel a vibration and see a reminder on your screen at 10 minutes before the hour if you haven't walked 250 steps.
When you meet the 250-step goal after receiving the reminder, you feel a second vibration and see a celebration.
Turn on reminders to move in the Fitbit app.
For more information, see help.fitbit.com.
Wear Blaze to bed to automatically track your time asleep, and sleep stages (time spent in REM, light sleep, and deep sleep). To see your sleep stats, sync your tracker when you wake up and check the Fitbit app.
To start, you have a sleep goal of 8 hours of sleep per night. Customize this goal to meet your needs.
For more information, see help.fitbit.com.
The Fitbit app can recommend consistent bedtimes and wake times to help you improve the consistency of your sleep cycle. Turn on bedtime reminders to be reminded nightly when it's time to start getting ready for bed.
For more information, see help.fitbit.com.
Blaze tracks several sleep metrics including when you go to bed, how long you're asleep, and your time spent in each sleep stage. Track your sleep with Blaze and check the Fitbit app to understand how your sleep patterns compare to your peers.
For more information, see help.fitbit.com.
The Relax mode on Blaze provides personalized guided breathing sessions to help you find moments of calm throughout the day. You can choose between 2-minute and 5-minute sessions.
All notifications are automatically disabled during the session. If you've set a silent alarm, Blaze will vibrate at the time specified.
For more information, see help.fitbit.com.
Blaze automatically recognizes and records many high-movement activities which are at least 15 minutes long. Sync your device to see basic stats about your activity in your exercise history.
For more information, including how to change the minimum duration before an activity is tracked, see help.fitbit.com.
Track specific exercises with the exercise mode on Blaze to see real-time stats. For complete workout stats, review your exercise history in the Fitbit app.
Note: Blaze uses the GPS sensors on your nearby phone to capture GPS data.
Connected GPS is available for all supported phones with GPS sensors. For more information, see help.fitbit.com.
Note:
Sync your tracker to save the workout in your exercise history, where you can find additional stats and see your route if you used connected GPS.
Heart-rate zones help you target the training intensity of your choice. Blaze shows your current zone and progress toward your maximum heart rate next to your heart-rate reading. In the Fitbit app, you can see your time spent in zones during a particular day or exercise. Three zones based on American Heart Association recommendations are available, or you can create a custom zone if you have a specific heart rate you're targeting.
Default heart-rate zones are calculated using your estimated maximum heart rate. Fitbit calculates your maximum heart rate with the common formula of 220 minus your age.
Icon | Zone | Calculation | Description |
![]() | Out of Zone | Below 50% of your maximum heart rate | Your heart rate may be elevated, but not enough to be considered exercise. |
![]() | Fat Burn | Between 50% and 69% of your maximum heart rate | This is alow-to-medium intensity exercise zone. This zone may be a good place to start for thosenew to exercise. It's called the Fat Burnzone because a higher percentage of calories are burned from fat, but the total calorie burn rate is lower. |
![]() | Cardio | Between 70% and 84% of your maximum heart rate | This is a medium-to-high intensity exercisezone. In this zone you're pushing yourself but not straining. For most people this is the exercise zone to target. |
![]() | Peak | Greater than 85% of your maximum heart rate | This is a high-intensity exercise zone. This zone is for short intense sessions that improve performance and speed. |
Set a custom heart-rate zone or a custom max heart rate in the Fitbit app if you have a specific target in mind. For example, elite athletes might have a target that differs from the American Heart Association's recommendations for most people.
For more information, see help.fitbit.com.
After you complete a workout, sync your tracker with the Fitbit app to share your stats with friends and family.
For more information, see help.fitbit.com.
View your overall cardiovascular fitness in the Fitbit app. See your cardio fitness score and cardio fitness level, which shows how you compare to your peers. From the Fitbit app dashboard, tap the heart-rate tile, and swipe left to see your detailed cardio fitness stats.
For more information, see help.fitbit.com.
Use Blaze to control music playing on your phone.
If you have an Android phone, turn on Bluetooth Classic to control music on your phone:
To control music:
Notes:
Update your tracker to get the latest feature enhancements and product updates.
When an update is available, a notification appears in the Fitbit app. After you start the update, a progress bar appears on Blaze and in the Fitbit app until the update is complete. Keep your tracker and phone close to each other during the update.
Note: Updating Blaze takes several minutes and may be demanding on the battery. We recommend plugging your tracker into the charger before starting the update.
For more information, see help.fitbit.com.
If Blaze isn't working properly, see our troubleshooting steps below. Visit help.fitbit.com for more information.
Blaze continuously tracks your heart rate while you're exercising and throughout the day. If the heart-rate sensor on your tracker has difficulty detecting a signal, dashed lines appear.
If your device doesn't detect a heart-rate signal, first make sure heart-rate tracking is turned on in the settings on your device. Next, make sure you're wearing your tracker correctly, either by moving it higher or lower on your wrist or by tightening or loosening the band. Blaze should be in contact with your skin. After holding your arm still and straight for a short time, you should see your heart rate again.
For more information, see help.fitbit.com.
If you experience any of the following issues, restart your tracker:
To restart your tracker:
For more information or to contact Customer Support, see help.fitbit.com.
Fitbit Blaze contains the following sensors and motors:
The band that comes with Blaze is made of a flexible, durable elastomer material similar to that used in many sports watches. It does not contain latex. Accessory bands are available in genuine leather and stainless steel.
The buckle and frame on Blaze are made of surgical-grade stainless steel. While all stainless steel contains traces of nickel and can cause an allergic reaction in someone with nickel sensitivity, the amount of nickel in all Fitbit products meets the European Union's stringent Nickel Directive.
Blaze contains a Bluetooth 4.0 radio transceiver.
Blaze contains a vibration motor for alarms, goals, notifications, and reminders.
Blaze contains a rechargeable lithium-polymer battery.
Blaze holds detailed minute-by-minute information for the most recent 7 days, and 30 days of daily summaries. Heart rate data is stored at one-second intervals during exercise tracking and at five-second intervals at all other times.
Refer to the following table for information on how long Blaze stores your stats and data in between the times you sync your tracker. Your recorded data consists of steps taken, distance traveled, calories burned, floors climbed, active minutes, heart rate, exercise, and sleep tracked.
Sync your tracker with the Fitbit app to access your historical data.
Type of data | Days stored |
Minute-by-minutestats | 7 |
Sleep data | 7 |
Sleep stages | 5 |
SmartTrack data | 7 |
Summary totals | 30 |
Blaze has a color LCD touch screen.
Band sizes are shown below. Note that accessory wristbands sold separately may vary slightly.
Small band | Fits a wrist between 5.5 - 6.7 inches (140 mm - 170 mm) in circumference |
Large band | Fits a wrist between 6.7 - 8.1 inches (170 mm - 206 mm) in circumference |
Extra large band | Fits a wrist between 8.1 - 9.3 inches (206 mm - 236 mm) in circumference |
Operating Temperature | 14° to 113°F (-10° to 45°C) |
Non-operating Temperature | -4° to 113°F (-20° to 45°C) |
Water Resistance | Splash proof. Do not shower or swim with the device. |
Maximum Operating Altitude | 28,000 feet (8,535 m) |
To learn more about your tracker, how to track your progress in the Fitbit app, and how to build healthy habits with Fitbit Premium, visit help.fitbit.com.
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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