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

If you are trying to decide between the Fitbit Charge 3 and the Garmin Vivosmart 4, this “Fitbit Charge 3 vs Garmin Vivosmart 4” guide will help.

Summary Table

Below is a table comparing the Fitbit Charge 3 and Garmin Vivosmart 4. The table provides a side-by-side comparison of their features, functionalities, and specifications. Scan through the table to see which device suits your needs the best.”

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 ResistanceUp to 5 ATMUp to 5 ATM
Battery LifeUp to 7 daysUp to 7 days
Buy on AmazonBuy on Amazon

Features At A Glance

Fitbit Charge 3 comes with a built-in GPS sensor that tracks all routes, distances, and paces when running or cycling. Unfortunately, Garmin didn’t add this feature on Vivosmart 4.

Charge 3 is slightly bigger than the Garmin Vivosmart 4 but if want something that’s nicely designed opt for the Vivosmart 4 as it 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, etc.


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.

Both watches will wake up when you tap on the display when an alert arrives, or when you raise the wrist. Charge 3 and Vivosmart 4 are designed to have their displays stay off by default.


The Fitbit Charge 3 and Garmin Vivosmart 4 are two sporty smartwatches that appeal to fitness enthusiasts.

The Gorilla Glass 3 on the Charge 3’s screen makes it scratchproof, while the Vivosmart 4 uses aluminum and silicon for its bezel and bands.

The Vivosmart 4 is slightly heavier than the Charge 3, weighing 61 grams compared to the Charge 3’s 29 grams.

Both watches are waterproof and have a water resistance rating of 5ATM, which means they can withstand immersion of up to 163 feet in water.

Additionally, Swimmers can use either watch to monitor strokes and yards among other pool stats.

Health and Fitness Tracking

Garmin Vivosmart 4 has a wrist sensor that will track and estimate running. On the other hand, Fitbit Charge 3 will monitor peak zones for your workouts, heart rate, and the number of calories burned.

If you are searching for a watch that will determine your HVR, try the Garmin Vivosmart 4 as it incorporates the feature. 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 with Charge 3 as it shows routes, and as a result, you don’t get lost.

The Garmin Vivosmart 4 can be connected to chest straps and other external heart rate monitors thanks to the ANT+ compatibility feature but Fitbit Charge 3 can’t. The ANT+ feature makes workout results like cycling, weightlifting, etc. more accurate.

Battery Life

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

Fortunately, both watches come with good battery life. On a complete charge, Fitbit Charge 3 and Garmin Vivosmart 4 can last you for up to 7 days however, how long the battery lasts depends on how you use the tracker.

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

Both the Fitbit Charge 3 and Garmin Vivosmart 4 are excellent options for anyone looking for an activity tracker. Both devices are great for tracking sleep, but there are some differences that you should be aware of when deciding between the two.

If you want a smartwatch that is stylish and has a larger display, then the Charge 3 is a great option. It’s perfect for those who want to keep an eye on their fitness goals while looking good at the same time.

On the other hand, if you’re looking for an activity tracker that lets you have control over your music while working out, then the Vivosmart 4 is the way to go. It’s great for those who like to listen to music while they exercise.

Ultimately, the choice between the two comes down to personal preference. Both the Garmin Vivosmart 4 and Fitbit Charge 3 are great options and will serve you well as you work towards your fitness goals.

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