How Long Does a Fitbit Battery Really Last?

Fitbit Sense vs Fitbit Luxe

How Long Does a Fitbit Battery Really Last?

Key Points

  • The Fitbit line of tracker devices offers an affordable alternative to flagship smartwatches, with wide compatibility and reasonable pricing.
  • Fitbit devices are divided into smartwatches and trackers, both offering functionality like heart rate monitoring and smartphone notifications.
  • Fitbit devices have impressive battery life, with the Charge line lasting up to a week and smartwatches like the Versa lasting up to six or seven days on a single charge.
  • Factors that affect Fitbit battery life include frequency of use, push notifications, device type, age, and maintenance habits.
  • The newly released Charge 6 is a great choice for those seeking a balance between usability and battery life.

What can you expect from your Fitbit battery? The Fitbit line of tracker devices presents an affordable alternative to the likes of the Galaxy Watch and Apple Watch. You get a platform-agnostic device that tracks crucial data like your oxygen saturation, heart rate, and your overall daily steps.

The line of trackers has been quite popular, with its wide range of compatibility and affordable pricing putting it ahead of flagship smartwatches. However, like any other electronic device, you need to enact some good practices to get the best out of your battery.

Understanding the Fitbit Line

The Fitbit line of devices is divided into multiple different products. The primary output of the company rests on smartwatches. Some, like the new Versa 4, are close in functionality to something like the Apple Watch. Others, like the Charge HR, are more akin to a traditional fitness tracker with some additional smart functionality.


Best for Health Tracking
Fitbit Versa 4
  • 1.69-inch screen
  • Health metrics dashboard
  • Water resistant up to 50 meters
  • Daily Stress Management Score
  • Includes a 6-month Premium membership
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02/22/2024 07:29 pm GMT

The Fitbit line is divided into two camps: smartwatches and trackers. There is quite a bit of overlap when it comes to overall functionality between these two types of devices, though. The smartwatches focus on integrating Fitbit’s tracking technology into your smartphone’s general ecosystem. With something like the Versa 4, you’re getting access to heart rate monitoring, but it can also handle controlling Spotify.

The Fitbit trackers, like the newly released Charge 6, do retain some of that smartwatch functionality. Given the general size of the display, it won’t have equal parity between its pricier smartwatch counterparts. Still, you get access to notifications from your smartphone, as well as vital tracking data for your health and exercise habits.


One of the big boons of the Fitbit line is the general affordability of the devices. You get into a Fitbit smartwatch, like the Versa 4, for a suggested retail price of $199.99. If you’d rather have a tracker, the Charge 6 is affordably priced at $159.95. There are cheaper options for the tracker, like the Inspire 3 line at $99.95.

There is a Fitbit for everyone, regardless of budget. If you’re looking to get better metrics on your exercise habits, it might be a good idea to get into one of the devices. You aren’t tied to a specific smartphone manufacturer, which lends itself to a fair bit of flexibility.

Smartphone Compatibility

Best for Fitness Enthusiasts
Fitbit Charge 6
  • Water-resistant up to 50m
  • 40+ exercise modes
  • 1.04-inch screen
  • ECG and irregular heart rhythm notifications
  • 7 days of battery life
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02/22/2024 07:25 pm GMT

Fitbit is available for any device, regardless of if it is an Apple or Android smartphone. As such, this opens it up to virtually the entire market. Now, the software on the devices isn’t going to be as tightly integrated as an Apple or Galaxy Watch, but it does a fair job with crucial functionality you might expect.

If you lean on a smartwatch heavily to extend the experience of using your smartphone, you might be disappointed. However, you can use it readily for things like payments, controlling your favorite streaming apps for music, and viewing notifications and calls as they come in.

Fitbit Battery Life

One of the biggest selling points of the Fitbit line is the extreme battery life for each device. You’re looking at multiple days with regular use on any of their devices. The Charge line, in particular, stands out, with at least a full week of regular use between charge cycles.

The Versa and other smartwatches are no slouch in this regard. You can expect up to six or seven days on a single charge, which is quite a bit compared to other smartwatches. Besides the basic affordability of the devices, the extreme battery life is a great selling point. Yes, the software might not be on par with something like the latest Apple Watch, but it does a fine job of accommodating most needs.

What Affects How Long a Fitbit Battery Lasts?

There are a few different factors that go into getting the best overall life from your Fitbit battery. As you might expect with any smart device, you have to take care of it regularly.


Best for Fitness
Fitbit Charge 5
  • Daily readiness and stress management score
  • Health Metrics dashboard, track SpO2, heart rate variability, skin temperature variation
  • Built-in GPS
  • 24/7 heart rate tracking and Active Zone Minutes
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02/21/2024 12:43 pm GMT

The Fitbit line will have noticeably less battery life when used frequently. You can set options with your device to have the screen always on, but you’ll have less usable life in between charges. The best option is to have the device’s screen activated when needed, rather than letting it always be on.

Still, it is a bit of a trade-off. You can’t access the smart functions of the device without engaging the screen, but that same activation can drain usable battery life at any given time. Occasional use isn’t too detrimental to your battery health, which — if you’re a health nut — might be the only way you use it.


Another massive contributing factor to your Fitbit‘s battery life are the push notifications. If your Fitbit is constantly buzzing from social media and other apps, the battery life suffers for it. As such, you’ll want to only allow the notifications that are vital to the function of the Fitbit.

You don’t need Twitter or Instagram notifications on a device with a smaller screen than the average smartphone. However, allowing things like calls, texts, and health app notifications might not be such a bad idea.

Device Type

As previously mentioned, the type of Fitbit you have is a massive contributor to the sort of battery life you can expect. Devices like the original Inspire can only net around five days of overall battery life. You won’t find these new for purchase currently, however.

Models like the Versa and Sense boast impressive battery life, with six or more days being the norm on a single charge. The Charge line gets up to seven days on a single charge, which is quite impressive. The best of them all is the Inspire 3, which can last up to ten days. However, you’re losing out on some key functions that make the Fitbit line notable.


The overall age of your device is going to be a massive contributor to overall battery life. Batteries age, much like anything else. The older a device, the less likely it is that the battery is going to retain a good charge and operate at ideal capacities.

You’ve likely seen this with your smartphone already. As the years wear on, the effective battery capacity of a given device begins to diminish. It can be a tough pill to swallow in terms of upgrading to a new device. However, if battery life is crucial to you, it might be worth looking into a new Fitbit.


Getting into good charge habits is a great way to extend the overall capacity of any device’s battery. The Fitbit line is no different in this regard, and adopting some changes to your habits can go a long way in giving you years of effective use.

For starters, the device shouldn’t charge constantly. You want the battery to be as discharged as possible without being fully depleted. Fully depleting the battery can lead to less effective capacity as it increases the wear on the internal cells of the pack. Once fully charged, you should remove the device immediately from the charger. Doing this helps prevent additional wear on the battery caused by current.

Choosing the Right Fitbit for Battery Life

Finding the right Fitbit depends on your needs and wants. They are devices primarily marketed with fitness and health as an overall aim for the brand. As such, if you’re particularly active, a Fitbit is a great choice for keeping track of your overall health while exercising.

In terms of finding a device that presents a good midpoint between usability and battery life, the newly released Charge 6 is a great entry point for the entire product line. You’ve got a load of usable smart functions and great battery life.

Frequently Asked Questions

Can you charge a Fitbit while using it?

No, you’ll have to take it off your wrist to charge it.

What is the average battery life of a Fitbit?

It does depend on the model, but you can expect five days at the bare minimum across all of the wearable trackers and smartwatches.

Can I use a Fitbit with any smartphone?

Yes, Fitbit devices work with Android and iPhone.

Is there a way to reset my Fitbit?

Yes, you’ll need to use your included charging cable to reset it.

Is the Fitbit heart tracking accurate?

Yes, it’s fairly accurate and is well-regarded by medical professionals.

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