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Fitbit Charge 3 Vs Garmin Vivosmart 4: A Comparison Review!

Here is a brief comparison table of Fitbit Charge 3 vs Garmin Vivosmart 4:

Display19.33mm, OLED22mm, Grayscale OLED
Built-in GPSNo (Shares Phones GPS)No (Shares Phones GPS)
Pulse Ox SensorNoYes
Resolution110 x 150 pixels48 x 128 pixels
Interchangeable BandYesNo
Water Resistance RatingUp to 5 ATMUp to 5 ATM
Battery LifeUp to 7 daysUp to 7 days

Features At A Glance

Fitbit Charge 3 comes with a built-in GPS sensor that will track all of your routes and paces especially if running or cycling.

Sorry, Garmin wasn’t able to add this mapping feature to its Vivosmart 4 smartwatch. Charge 3 recognizes the activity you indulge in automatically and its display is customizable too.

Charge 3 is slightly bigger than the Garmin Vivosmart 4 but when you are talking about design you may want to go for Vivosmart 4 because is stylish and features an ultra slim design.

Garmin Vivosmart 4 is an awesome fitness watch because unlike Fitbit Charge 3, it comes with the pulse OX sensor which is responsible for tracking your blood’s oxygen level. 

Other features you will find on Vivosmart 4 include Find My Phone, altimeter, body battery, accelerometer e.tc.


The Garmin Vivosmart 4 comes with an OLED screen display that measures 19.33 mm. The display has a resolution of 48 x 128 pixels and is a touchscreen.

On the other hand, the Fitbit Charge features a 22mm grayscale OLED screen display with a resolution of 110 x 150 pixels.

The activity trackers will both brighten up when you tap on the display, a new alert arrives, and when you raise your hand. Charge 3 and Vivosmart 4 are programmed to have their displays stay off by default.


Fitbit Charge 3 and Garmin Vivosmart 4 weigh 29 grams and 61 grams respectively. This means Vivosmart 4 feels slightly heavier than the Fitbit Charge 3.

Both the Charge 3 and Vivosmart 4 come with a slim, sleek, and stylish design but the Vivosmart has a smaller display which makes reading a little bit difficult sometimes.

Both of these activity watches are waterproof and can be worn to the shower. Vivosmart 4 and Charge 3 are both rated water resistant up to a rate of 50 meters and can withstand immersion of up to 163 feet.

If you like swimming and want to track your swimming activities you can try out either of the fitness trackers. They can monitor strokes and yards among other pool stats.


Fitbit Charge feels super light than the Vivosmart 4 because it uses lightweight materials like aluminum to make its thin case.

The screen display of Fitbit Charge 3 is scratchproof and that is thanks to the Gorilla Glass 3 used. Garmin Vivosmart 4 on the other hand also uses aluminum on its bezel and silicon on its bands. Both smartwatches look sporty thus an irresistible hit to fitness lovers.

Health And Fitness Tracking

Garmin Vivosmart 4 has a wrist sensor that will be able to track and estimate the levels of running through the blood.

Fitbit Charge 3 on the hand will be able to monitor the peak zones for your workouts, heart rate, and the number of calories burned.

Although the activity watches are not as accurate as the devices you will find at the hospital they are a great choice for home use.

If you are in search of a watch that will be able to determine your HVR try the Garmin Vivosmart 4 as it incorporates the feature to help you realize your levels of preparedness when you merge out of your blanket each day.

Each time the HVR suggests you are not fully relaxed it means your body isn’t completely able to ready to deal with the day.

Connectivity Features

Both Fitbit Charge 3 and Garmin Vivosmart 4 don’t come with built-in GPS systems. But Charge 3 can connect to your phone to share its GPS connection.

That means you can cycle, walk or run for long distances using Charge 3 as it shows you routes hence you never get lost.

The Garmin Vivosmart 4 can be connected to chest straps and other external heart rate monitors thanks to the ANT+ compatibility feature.

The ANT+ feature makes workout results like cycling, weightlifting etc. more accurate. You will only find the ANT+ feature on Garmin Vivosmart 4 and not in Fitbit Charge 3. Like the Charge 3, Vivosmart 4 will automatically track your workouts.

Battery Life

This is one of the most important features you will want to consider before buying either of the fitness smartwatches.

The good thing is, that both of them come with good battery life. On a complete charge, both, Fitbit Charge 3 and Garmin Vivosmart 4 can last you for up to 7 days. How long the battery can last also depends on how you use each tracker.

For example, when you use the Pulse Ox Sensor on Vivosmart 4 to monitor blood and oxygen the watch will not reach you for 7 days (it gets to less than that). The use of GPS on the other hand will cut the battery life on Fitbit Charge 3.

Fitbit Charge 3 vs Garmin Vivosmart 4: Which Model Carries The Day?

Fitbit Charge 3 and Garmin Vivosmart 4 are both great options. You never go wrong whether you opt to buy Charge 3 over Vivosmart or vice versa.

Both are good for tracking your sleep. If you want a smartwatch that is stylish and has a larger display then Charge 3 would be the option.

For those who want an activity tracker that will let them have control over music while working out, Vivosmart 4 is the option.

Preference is the only way to choose between the two. Overall, Garmin Vivosmart 4 and Fitbit Charge 3 are both great options.

You may also want to know how Fitbit Charge 2 and Garmin Vivoactive Smart 3 compare.

The Pros of the Fitbit Charge 3

  • The fitness tracker is able to keep track of your heart and sleep.
  • You can easily read the text because the display is OLED and larger.
  • This Fitbit can be worn while in the shower, in the pool plus it tracks swimming activities too.
  • The battery life is great.

The Cons of the Fitbit Charge 3

  • Lacks music control thus not best for musicoholics and the watch faces are limited too.

The Pros of the Garmin Vivosmart 4

  • The watch is sleek, so slim, and lightweight
  • Features an energy tracker
  • Comes with a Pulse Ox sensor thus an excellent tracker for health and fitness

The Cons Garmin Vivosmart 4

  • The bands are not interchangeable

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