Fitbit Flex 2

Last updated date: February 21, 2019

Review Melt Score
7.9

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We looked at the top 1 Fitness Trackers and dug through the reviews from 9 of the most popular review sites including New York Times Wirecutter, BestReviews, CNET, Tech Radar, Trusted Reviews, PG Magazine - SE Asia, Digital Trends, Wearable, Expert Reviews - UK and more. Through this analysis, we've determined the best Fitness Tracker you should buy.

Overall Take

In our analysis of 97 expert reviews, the Fitbit Fitbit Flex 2 placed 4th when we looked at the top 11 products in the category. For the full ranking, see below.

Editor's Note March 19, 2019:
Checkout The Best Fitness Tracker for a detailed review of all the top fitness trackers.

Expert Summarized Score
7.5
9 expert reviews
User Summarized Score
7.4
4,437 user reviews
Our Favorite Video Reviews
What experts liked
Like the Charge 3, the very affordable Fitbit Flex 2 tracks your movement automatically, and it does a pretty good job of recognizing and measuring activities.
- New York Times Wirecutter
A basic fitness monitor with a thin, sleek design. We love that it is waterproof and can be worn while swimming.
- BestReviews
The Flex 2 is the first Fitbit you can wear in the shower and while swimming. It's waterproof down to 50 meters (about 165 feet) and can be used in both fresh water and salt water.
- CNET
September 29, 2016 | Full review
The Fitbit Flex 2 is a skinny, slight, water resistant fitness tracker, small enough that you can wear a watch alongside it without looking like you’re wearing two timepieces.
- Tech Radar
February 15, 2018 | Full review
Once you have the Flex 2 wrapped around your wrist, its strength lies in the fact that you can largely forget about it. All of your steps are automatically counted and your forty winks all add up when you sleep.
- Trusted Reviews
June 13, 2018 | Full review
The Fitbit Flex 2 is fully waterproof—a first for Fitbit. It can be used 150ft underwater for several hours and automatically tracks swimming stats, including lap counts, pace, and total duration.
- PG Magazine - SE Asia
September 29, 2016 | Full review
The Flex 2 is Fitbit’s first truly waterproof device, and can give you a rough idea of how many laps, yards, or even miles you swim
- Digital Trends
December 12, 2016 | Full review
The wearable is much slimmer in appearance than the first Flex because the tracking module is 30% smaller. The Alta looks like a beast next to it.
- Wearable
Fitbit’s Flex 2 is well rounded, with the waterproofing paired with some welcome added extras such as keeping track of how many (or how few) lengths you just swam in your local pool.
- Expert Reviews - UK
December 11, 2018 | Full review
What experts didn't like
It lacks a heart-rate monitor, which means that the sleep data you get is rudimentary—just how long you slept, not how deeply.
- New York Times Wirecutter
It doesn't track heart rate or have a screen. Battery life isn't as long as that of other models we considered.
- BestReviews
Charging is also annoying: The Flex 2 comes with yet another proprietary and totally different charger from every other Fitbit. You have to remove the tracker, which is an extremely tiny little stick, and insert it into a small dock. A full charge will take up to 2 hours.
- CNET
September 29, 2016 | Full review
If this is your bag, there’s just one other thing to consider - the Fitbit Flex 2’s battery life is not that good for such a low-functionality tracker.
- Tech Radar
February 15, 2018 | Full review
Part of the issue is that there’s no loop through which to thread the strap, meaning you have to line up the buttons with the holes; it’s trickier than you might think especially for anyone with restricted motor control.
- Trusted Reviews
June 13, 2018 | Full review
There's also no display; instead, there's a row of colorful lights that blink to indicate your progress and alert you of notifications from your phone.
- PG Magazine - SE Asia
September 29, 2016 | Full review
Fitbit says that the swimming issue can crop up because for the Flex 2 to recognize the activity, you need to have the swimming auto tracking setting activated.
- Digital Trends
December 12, 2016 | Full review
It's not quite straightforward when you feel a vibrating buzz at the wrist and see a colour flash up to signal that someone is trying to get in touch. Bottom line, you're still going to be looking for your phone to deal with the notification.
- Wearable
No GPS or heart-rate monitoring
- Expert Reviews - UK
December 11, 2018 | Full review

From The Manufacturer

Fitbit flex 2, black, track steps, distance, calories burned and active minutes. Comes with both small and large size band.

Overall Product Rankings

1. Fitbit Versa
Overall Score: 8.8
Expert Reviews: 10
2. Lintelek Activity Tracker
Overall Score: 8.4
Expert Reviews: 2
3. Fitbit Charge 3
Overall Score: 8.0
Expert Reviews: 6
4. Fitbit Flex 2
Overall Score: 7.9
Expert Reviews: 9
5. Samsung Pro Fitness Band
Overall Score: 7.8
Expert Reviews: 8
6. FitBit Zip
Overall Score: 7.7
Expert Reviews: 9
7. Garmin vívosport Fitness Tracker
Overall Score: 7.7
Expert Reviews: 10
8. FitBit Surge
Overall Score: 7.5
Expert Reviews: 10
9. Fitbit Alta
Overall Score: 7.5
Expert Reviews: 6
10. Withings Go Activity Tracker
Overall Score: 7.0
Expert Reviews: 10
11. Garmin vivofit 3 Fitness Tracker
Overall Score: 7.0
Expert Reviews: 8

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