When comparing Fitbit Surge vs Garmin Vivofit 3, the Slant community recommends Fitbit Surge for most people. In the question“What are the best fitness trackers?” Fitbit Surge is ranked 6th while Garmin Vivofit 3 is ranked 24th. The most important reason people chose Fitbit Surge is:
The Fitbit Surge fitness tracker has automatic, continuous, wrist based heart rate tracking. Heart rate data is stored at one second intervals during exercise, and at five second intervals during non-exercise activities.
Specs
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Pros
Pro Continuous heart rate tracking eliminates risk of forgetting to activate the feature
The Fitbit Surge fitness tracker has automatic, continuous, wrist based heart rate tracking. Heart rate data is stored at one second intervals during exercise, and at five second intervals during non-exercise activities.
Pro LCD screen that can display multiple stats without the need of using the app
Similar fitness trackers depend on Bluetooth in order to relay info to a smartphone. Fitbit Surge can display information locally on the display which is far more convenient.

Pro Lets users log meals by voice
Users can tell Surge what was eaten, and a database will be used to match the entry with nutritional information.
Pro Does not need to be recharged frequently
The battery lasts 5-7 days which is one of the longer lasting options for rechargeable fitness trackers.

Pro Easy to operate compared to display-less options
While Surge easily syncs with iOS, Android, and Windows phones, it does not depend on them for functionality. The touch screen and physical buttons are a huge step up from display-less models.
Pro Completely safe for swimming and showering
The Vivofit 3 is waterproof up to 50 meters. You can confidently take it swimming, or wear it in the shower without risk of damaging the tracker.
Pro No need to recharge the tracker
The Vivofit 3 runs on battery so there is no need to worry about keeping it charged.
With a battery life of up to 1 year, it can go longer without a battery change than most other fitness trackers.
Cons
Con Might cause skin irritation for some
A number of people are reporting the Surge causes skin irritation. According to the company it's a very small percentage of customers.
Con Screen prone to inadvertent touches
It's really easy to accidentally brush up against the fitness tracker's watch and end up on screens that the user wasn't intending to navigate to. This forces you to swipe back to the correct screen.
Con Fairly big investment
While it's one of the most advanced trackers that Fitbit offers, it comes with a hefty price tag.
Con Too unreliable for the cost
The Vivofit 3 has multiple serious issues impacting its reliability which means you're taking a gamble by purchasing it. At $80, you can get trackers with much better build qualities and a similar set of features.
Con Software that detects different activity often doesn't work
The "Move IQ" software in the tracker, which is supposed to detect different types of exercise, often doesn't work. Either it will track everything as walking, or will not start tracking them all.
Con It's easy to lose the watch because of the weak clasp
The clasp frequently comes undone during physical activity because of its poor design. If you aren't constantly paying attention to it or add re-enforcement to the clip, it would be easy to lose the tracker.
Con Syncs with a limited number of devices
Con Not for people with small wrists
The tracker is available in two sizes, regular or extra large. The regular band is too long for people with below average sized wrists.
