Fitness Tracker Comparison Chart | What Actually Matters

Fitbit Charge 6 and Garmin vivosmart 5 are the two reference models in any fitness tracker comparison chart, differing mainly in GPS type and subscription requirements.

Most comparison charts bury you in specs before telling you what separates one tracker from another. In practice, a fitness tracker comparison chart comes down to four questions: does it have built-in GPS, what sensors sit under the hood, does it demand a subscription, and how does it match your phone. The Fitbit Charge 6 and Garmin vivosmart 5 illustrate every one of those differences cleanly.

Here’s the trade-off up front. The Charge 6 carries standalone GPS and a color touchscreen. The vivosmart 5 relies on connected GPS and ships with a smaller OLED display. One costs $10 more than the other at US MSRP. Both last about a week per charge and work with iPhone and Android.

Fitbit Charge 6 vs Garmin vivosmart 5: Side-by-Side

This table compresses the core specs that actually drive a buying decision. Prices below are US MSRP from current store listings.

Which Tracker Actually Fits Your Wrist and Phone

Phone compatibility rarely gets the attention it deserves in a fitness tracker comparison chart. The Charge 6 requires iOS 15 or Android 9 and a Google account to function. The vivosmart 5 works with both platforms without account restrictions.

Wrist size matters more than most charts admit. The vivosmart 5 ships in two physical sizes, small/medium fitting 122–188 mm wrists and medium/large covering 148–228 mm. Fitbit’s Charge 6 uses a single adjustable band sizing approach with a 36.73 x 23.09 x 11.20 mm case that suits most wrists.

Subscription Costs and Hidden Fees in Fitness Trackers

Treating all fitness trackers as subscription-gated is the most common comparison mistake. Apple, Garmin, and Huawei run subscription-free, while Whoop is subscription-only. Fitbit sits in the middle: the Charge 6 works fully without paying, but Fitbit Premium adds deeper analytics at $9.99 monthly or $79.99 yearly, with six months included free at purchase.

The vivosmart 5 requires no subscription for any of its core features. Garmin’s approach keeps everything on the device and in the free Connect app. That distinction matters when you calculate total cost over two years of ownership.

GPS Confusion That Misleads Buyers

Connected GPS and built-in GPS sound similar but behave very differently outdoors. The Charge 6 records runs and rides with standalone GPS, meaning you can leave your phone behind and still get accurate distance maps. The vivosmart 5 uses connected GPS, which relies on your phone’s antenna to track location during workouts.

Water resistance carries a similar caveat. The Charge 6 is rated at 50 meters, while the vivosmart 5 is rated at 5 ATM (also roughly 50 meters in theory). Ratings differ by model, so check the manufacturer guidance before swimming or showering with either device rather than assuming one chart row tells the whole story.

If your budget leans tighter, our tested roundup of the best cheap fitness trackers under $50 covers models that still deliver solid step tracking and heart-rate monitoring without the premium price tags.

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