Fitbit Charge 3 Fitness Activity Tracker

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The Fitbit Charge 3 is a fitness tracker with long battery life, a swim-proof design, and PurePulse heart rate technology. It can be worn as a watch and is compatible with Android phones. The Charge 3 also has an auto-tracking feature, automatically recognizing many activities, including running, cycling, and more.

The Fitbit Charge 3 activity tracker is the most popular Fitbit product on the market today. It’s one of those devices that you can wear all day and not notice, which is a good thing. But it also tracks so much more than just your steps—it can measure your heart rate 24/7 and track sleep, swimming, and more! If you’re looking for an easy way to track your health, this may be your device.

Fitbit Charge 3

The Fitbit Charge 3 is a popular activity tracker for a reason. This sleek device has plenty of features to help you stay motivated, including an improved heart rate sensor, guided breathing exercises, and reminders to get moving throughout the day. It also comes in several colors and three sizes—small (130mm), large (150mm), or XL (165mm)—so you can find one that fits your wrist perfectly.

The Charge 3 is easy to use: just push up on the button below the screen when you want to see your stats, then scroll through them using the buttons on either side of the screen until you reach the one you want. You can also hold down on any stat for more information or tap it once for a quick summary of what day it is and how many steps or calories are left for your daily goal.

It’s waterproof.

The Charge 3 is water-resistant, which means it can be worn for swimming and even in the shower. It’s also resistant to sweat, rain, and splashes. This makes it a great choice for outdoor fitness enthusiasts who work up a good sweat—or those who get caught outside on rainy days.

It tracks your heart rate 24/7.

It tracks your heart rate 24/7.

The Charge 3 can track your heart rate 24/7, but it won’t do so while you sleep. The device uses an optical sensor on its underside to measure your heart rate. When that sensor is exposed to light from any source (including your skin), it measures the blood flow through your veins and determines what that means for your fitness level.

The Charge 3 also comes equipped with a built-in LED light that shines through the backside of the watch face and onto your wrist—no need for any additional accessories or attachments! The light is used with an accelerometer to measure movement and determine steps taken during exercise sessions.

It can track your sleep and breathing quality.

The Charge 3 can track your sleep and breathing quality, and the app will tell you how long you spend in each stage of sleep. It can even detect when you’re awake or asleep based on your movements (it uses a heart rate sensor to measure this). If you have trouble falling asleep at night, this is a great feature because it’ll alert you when it’s time for bed, so you don’t lie awake staring at the ceiling anymore!

The Charge 3 also has an alarm clock feature that vibrates to wake you up gently rather than startling you with music or noise—so if being woken up by something other than nature sounds like heaven, give this feature a try.

View your stats with a bright, clear display and get credit for up to 7 days of battery life.

It’s got a rechargeable battery that lasts up to seven days on a charge (based on regular use, with top-up charges during the day). You can charge it via USB cable or wirelessly—no need to keep looking for outlets in the middle of your workouts!

View your stats with a bright, clear display and get credit for up to 7 days of battery life.

The Charge 3’s large, colorful touchscreen display is easy to read — even in direct sunlight — and gives you access to more stats than ever before. During workouts, it automatically detects the type of activity you’re doing and keeps track of your real-time performance metrics. At any time during the day, simply tap the screen to see how many steps you’ve taken or calories burned. You can also see basic info like heart rate or estimated distance traveled; swipe up to view more detailed stats like elevation climbed and move bar progress (when applicable).

You can respond to texts from the device.

It is also possible to read messages from the device, but it’s impossible to reply to them when you’re away from your phone. This is a bit annoying if you want to be able to send short replies (like saying “I’m running late” or “I’ll be there soon”).

The Fitbit Charge 3 has a built-in speaker and a microphone for making calls, and it works with iOS and Android devices.

fitness activity tracker

For the most part, the Charge 3 is a great tracker—it’s comfortable to wear and offers plenty of features for fitness tracking. There are some small drawbacks, though. While it’s waterproof, you can only track swimming workouts in water up to 50 meters deep. You can track your sleep and breathing quality (which no other Fitbit currently offers), but there’s no way to set an alarm or wake-up notification. And while the battery life is longer than the Charge 2 (7 days rather than 5), it still has a shorter lifespan than many other smartwatches.

Most people will be happy with what they get from this device: It has all the basics and some extras like text message alerts, music control, guided breathing sessions, and automatic exercise detection.

The Fitbit Charge 3 can be used for health tracking, such as sleep, steps, swimming, and more.

man and woman walking

The Fitbit Charge 3 can be used for health tracking, such as sleep, steps, swimming, etc. The device also has a battery life of 7 days. This means you won’t have to take it off after every use!

One feature that makes the Fitbit Charge 3 stand out from other fitness trackers is its ability to track your breathing quality, so you can tell if you are having an asthma attack or not. In terms of fitness features, it also has guided breathing sessions, which help you keep track of how many breaths per minute (BPM) you need per exercise session to reach your goal.

Another interesting feature is its text messaging capability, where it allows users to respond through the display screen by pressing buttons on the side of their wrists rather than having them pick up their phones while working out or running errands around town, like shopping at local stores nearby where they live right now because they always want to stay healthy, but they don’t know how, so they’ll do whatever they can afford out there with money because sometimes people don’t have enough money because we’re still trying hard even though most people don’t make enough money these days.

tracking fitness

The Fitbit Charge 3 Fitness Activity Tracker is a great way to track your activity and improve your health. It includes a heart rate monitor to see how your resting heart rate trends over time as you exercise more.

  • To set up the Fitbit Charge 3, download the Fitbit app on your mobile device and follow the instructions for connecting it with your phone. Then open the app and tap “Learn more about this device!” From under Settings, connect to Bluetooth or Wi-Fi (if available). Once connected, the two devices will automatically sync data like steps taken and calories burned throughout the day.
  • Pressing either button on top of its casing will enable other modes that don’t require connectivity but still provide valuable insight into how well you slept last night—or if today’s workout was effective enough for healthier results tomorrow!

Better track heart rate 24/7 with PurePulse 2.0, Fitbit’s enhanced heart rate tech, and get more accurate calorie burn, resting heart rate, and heart rate zones during workouts.

The Charge 3’s heart rate tracking is even more accurate than ever with PurePulse 2.0, Fitbit’s enhanced heart rate technology. It tracks your resting pulse and continuously monitors your heartbeat during exercise to provide you with the most accurate reading possible. The Charge 3 will even display your heart rate zone in real-time on the device screen, so you can easily see how hard you’re working compared to where you should be.

  • Better track 24/7 heart rate with PurePulse 2.0 and get better calorie burn, resting pulse, and zones during workouts.
  • See on-screen heart rate zones for real-time feedback during workouts.

Use 20+ exercise modes like Run or Swim (Fitbit Charge 3 is water-resistant to 50 meters) to record workouts and connect to smartphone GPS for more precise real-time pace and distance.

  • The Fitbit Charge 3 has 20+ exercise modes to help you track workouts and connect to smartphone GPS for more precise real-time pace and distance.
  • With the Fitbit app on your phone, you can also set goals, get guidance from your coach, and participate in online challenges to push yourself further.

Automatically record time spent in light, deep, and REM sleep stages and see activity trends, health insights, and personalized guidance in one place with Fitbit Today.

Fitbit Today is the easiest way to view your stats, track progress toward goals, get motivated with challenges from friends and family, or find more ways to move more daily.

Take charge of your goals using the on-screen dashboard to manage your stats easily.

The Charge 3 is a super-sleek, ultra-comfortable fitness tracker with handy features. With the Charge 3, you can take charge of your goals by using the on-screen dashboard to manage your stats easily.

Track Your Fitness Goals

Available in seven colors and sizes from small to large, the Charge 3 is comfortable enough for all-day wear—and stylish enough to wear out at night. If you want a simple yet sophisticated look, opt for one of three monochromatic color schemes: black stick with the black band; silver stick with the charcoal band; or rose gold stick with peach band. Switching up your style is easy: just swap out the bands by sliding them off the end of the tracker and snapping them onto another one in seconds.

Get call, text, calendar, and smartphone app notifications right on the screen when your phone is nearby. Plus, you can send quick replies on Android only.

To set up call, text, calendar, and smartphone app notifications on your Charge 3:

  • Open the Fitbit app and tap Account.
  • Tap Notifications on your tracker or smartwatch to turn them on or off, depending on your preference. If you want to see incoming calls and texts right on the screen of your Charge 3 when you have your phone nearby, make sure that the box next to Show Notifications is checked. You can also choose which apps will show notifications by selecting them from the list below this setting (if available).
  • To use quick replies on Android devices only, Go back into your Fitbit app > Devices > Select “Manage devices” > Open up “Charge 3” > Click “Configure now” under Health & Fitness Tracking (or add it manually) > Scroll down until you see Quick Replies > Tap to Enable Quick Replies & Messages


We’re excited to see the future for Fitbit and its Charge lineup. There are plenty of other fitness trackers out there, but if you’re looking for something that will last you a long time and keep up with your busy lifestyle, the Charge 3 might be just what you need.

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