Finest health trackers 2021 | CNN Underscored

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Whereas Fitbit was one of many first corporations to transcend easy step counting — giving perception into energy burned, sleep information and extra — a number of manufacturers have constructed a formidable health group round their merchandise, permitting folks to attach with others who’re additionally on a mission to reduce weight, get match or enhance their endurance and pace.

That’s why, over the course of a month, we examined seven extremely rated, beloved health trackers. We ran. We walked. We lifted. We in contrast ease of use, construct high quality and accuracy. After a more-active-than-usual couple of weeks, we discovered one health tracker that tops all of them:

 Fitbit Inspire 2

Fitbit Encourage 2


Since first releasing health trackers in 2014, Fitbit has been thought of probably the most accessible model for all well being warriors — from novices to specialists.

Although each Fitbit fashions we tried excelled throughout our testing, the Encourage 2 was slimmer and easier to each arrange and perceive than the Fitbit Cost 4. Its glossy construct ensured it didn’t catch on clothes (or anything) whereas figuring out, and the skinny display appeared much less susceptible to bumps and scratches, so in a approach it felt much less shatterproof than others. Among the different trackers, just like the Fitbit Cost, had been simply barely greater, however nonetheless large enough to note the distinction. (We concede that consolation is wholly subjective, however we in the end discovered the slimmer Encourage 2 much less obtrusive whereas carrying and due to this fact suppose it could be comfy even for these with smaller wrists. For these on the lookout for extra heft and barely bigger faces, the Fitbit Cost Four or Garmin Vivosmart Four is likely to be extra excellent.) Regardless of its barely smaller display, we no means struggled to learn our stats within the Encourage 2, even whereas rapidly peeking throughout intense exercises.

Setup was a cinch and came about inside the Fitbit app, which is offered on Google Play, iTunes or Microsoft. Simply create a free profile, sync through Bluetooth, cost your tracker and also you’re able to get began. For higher accuracy, it’s important to fill out your private info, together with your peak and whether or not you’re carrying the tracker in your dominant or nondominant wrist. Your peak usually determines your gait — the size of your step — and the Encourage 2 is meant to trace otherwise based mostly on which hand you’re utilizing (although we didn’t discover a major distinction in monitoring after we examined on completely different wrists).

You may also arrange step objectives (we aimed for 10,000, as an example) in addition to weight reduction, water consumption, wellness, sleep and extra. While you log in to your Fitbit app, your private home web page mechanically shows a semicompleted circle of what number of steps you’ve taken for the day. A fast scroll will present you energetic minutes (when your coronary heart charge was raised), your common resting coronary heart charge and extra information. You may also set and log your water objectives.

 Fitbit Inspire 2

Fitbit Encourage 2


You’ve gotten the choice to activate a notification to remind you to get in at the very least 250 steps per hour to fulfill your motion aspirations for the day. This was one thing that, as we’re now working (and exercising and cooking and current 24/7) at house, we discovered to be extremely useful; on a number of events, the function (which you may also discover on the Garmin and Withings trackers) gave us the immediate we would have liked to pull ourselves out of our seat and stroll upstairs or seize the pup for a fast around-the-block jaunt.

Fitbit claims that it could actually mechanically inform what sort of health you’re partaking in, from swimming to biking to greater than 20 different actions, however we didn’t discover this declare to be solely correct in our testing. Whereas the Fitbit Encourage 2 did acknowledge after we had been doing cardio, it learn power coaching as king (our assumption is that’s as a result of our coronary heart charge would solely rise right here and there throughout these classes); after we biked, it picked it up as swimming. This wasn’t an anomaly pegged solely to Fitbit, as not one of the trackers constantly recognized power coaching. Regardless of that hiccup, we did like how the Fitbit app advised us precisely after we had been in our most energetic, fat-burning mode and after we had been at relaxation. We discovered this info to be useful, primarily because it offers perception into what number of extra energy to burn to fulfill objectives.

One of the crucial vital — and fascinating — options of the Fitbit Encourage 2 is the sleep tracker, which helps you to know while you get up all through the night time, how deep or gentle your relaxation is and the way a lot time you spend within the REM cycle. Our tester, a self-professed problematic sleeper, discovered this tracker to be probably the most comfy to put on all through the night time (a problem we had with different trackers, which you’ll be able to learn extra about beneath). And also you gained’t have a lot fear about charging the Fitbit Encourage 2, as it could actually maintain a cost for as much as 10 days; we no means wanted to recharge it all through our testing, even after a couple of days of heavy use.

For lower than $100, the Fitbit Encourage 2 is the only option for anybody who needs higher readability and extra strong information about their well being, health and wellness life-style. Every tracker additionally comes with a free yr of the Fitbit Premium Membership, which supplies data-driven private suggestions in addition to entry to a whole lot of exercise movies from Fitbit and meditation and mindfulness classes. We expect that’s loads of bang in your buck.

When working towards a particular well being objective, a health tracker can show important, serving to to self-monitor every day actions and supply motivation to remain in motion. As licensed health teacher DeBlair Tate, who offered steering throughout our testing course of, put it: “When your progress is tracked precisely and constantly, a sample of outcomes turns into clearer. It supplies a way of possession for well being and health objectives. While you purpose to succeed in these numbers every day, you achieve that achievement of accomplishment that motivates you to create extra objectives.”

However how correct, precisely, are health trackers? We did discover some discrepancies in steps — as much as 500 to 800 steps — after we wore two trackers without delay. This was true no matter model. That’s regular, although, since know-how and performance are all completely different. As Keegan Draper, Nationwide Academy of Sports activities Medication licensed private coach and health specialist for Mindbody, defined, wrist straps will differ from hip-mounted trackers and chest or arm straps.

By way of steps, he says extra correct measurements would come from a hip-mounted step counter, whereas a wristwatch may choose up on different actions and monitor these. “It is extremely doubtless two completely different trackers give completely different step counts,” Draper famous. “However, general, your every day health tracker will likely be comparatively correct, and having some kind of monitor and tracker is healthier than none.”


  • Accuracy: Although numbers will differ, as we explored above, to check accuracy, we wore two trackers without delay and in contrast the outcomes. We additionally in contrast the steps to the included pedometer in our telephone and examined the built-in GPS to measure distance.
  • Readability: Whereas the numbers on all health trackers are pretty small, we famous how straightforward it was to learn the display — in addition to how rapidly we may look on the display to see our coronary heart charge in the course of a exercise.
  • Navigation: All the trackers mean you can scroll to seek out steps, exercise, coronary heart charge and so forth. We rated how straightforward this was to discover.
  • Exercise recognition: For a lot of trackers, you may also choose what sort of exercise you’re doing earlier than you start for higher monitoring accuracy. Some mechanically acknowledge actions, so we examined that too.
  • App usability: We rated how easy the app was, what it tracks and the way it offered info.
  • Ease of setup: While you’re shopping for a tracker to decrease your coronary heart charge and enhance your well being, the very last thing you need is to be pressured. We checked out how straightforward and quick it was to comply with directions, obtain the app, connect with Bluetooth and/or Wi-Fi and get began.
  • Battery life: We recorded how lengthy every machine lasted on a full cost.
  • Compatibility: Many health trackers require you to obtain their very own app, and a few mean you can sync with different apps, like Apple Well being, Google Match, MyFitness Pal, Peloton and plenty of others. We checked out what number of third-party apps every tracker may pair with.


  • General consolation: The aim of a health tracker is to put on all of it day, and in some circumstances, all night time. This implies consolation is essential. We rated on match in addition to the way it felt throughout and after a exercise, towards sweat or within the bathe.
  • Design: We famous how aesthetically pleasing and numerous the tracker was, together with what number of colours and designs had been accessible.
  • Waterproofness: We took every of those trackers into the bathe to make sure they held as much as their waterproof ranking.

Different elements

  • Guarantee: We famous the guarantee, if any, for every machine and rated its providing.
  • Privateness: We additionally combed every product’s privateness coverage to see how the corporate manages privateness inside the app and if it shares any person information.

Utilizing the metrics and pointers above, we rated every individually. Then we tallied up the whole quantity in every subcategory. Lastly, we discovered the general rating for every, and thus named a winner. We broke down the scores as follows:

  • Efficiency had a most of 70 factors: accuracy (15 factors), readability (10 factors), navigation (10 factors), exercise recognition (10 factors), app usability (10 factors), ease of setup (5 factors), battery life (5 factors) and compatibility (5 factors).
  • Construct had a most of 20 factors: general consolation (10 factors), design (5 factors) and waterproofness (5 factors).
  • Different elements had a most of 10 factors: guarantee (lower than two years = zero factors; two to 5 years = 2 factors; greater than 5 years = 5 factors) and privateness (5 factors).

Fitbit Cost 4 ($135.98, initially $149.95;

Fitbit Charge 4

Fitbit Cost 4


In all transparency, the Fitbit Cost 4 affords each function we preferred concerning the Fitbit Encourage 2, however we discovered the design of this mannequin to be much less comfy. The display and the band are wider, which may really feel cumbersome for somebody with small wrists. In the event you’re on the fence about shopping for an Apple Watch, although, that is very related way of alerts, connectivity to your calendar and messaging, so it may very well be a less expensive different. It’s suitable with Spotify, so you’ll be able to take heed to music through Bluetooth headphones whereas exercising, however a premium membership is required.

The display is extra superior than the Encourage 2, which we appreciated, nevertheless it’s additionally simpler to scratch. So why did we desire the Fitbit Encourage 2? It affords the entire identical options, it’s smaller and it supplies extra worth for its value level.

Garmin Vivosmart Four With Pulse Ox and Coronary heart Price Monitor in Rose Gold With Grey Band ($119.39, initially $129.99;

Garmin Vivosmart 4

Garmin Vivosmart 4


By way of feel and appear, the 2 Garmins we examined had been much like the Fitbit Encourage 2. They’ve thinner bands in varied colours and have the swipeable house display. Whereas we most well-liked Fitbit to trace exercises and steps, Garmin was higher for walks and runs, because it’s identified for its GPS accuracy and its potential to assist with pacing, from inside the app. It even supplies trails or loops you’ll be able to comply with in most cities.

Garmin’s app and interface are much like Fitbit however really feel clunkier and harder to navigate. There are numerous sections, together with a every day screenshot, challenges you may give your self, calendar reminders and extra, nevertheless it doesn’t supply the identical community-like really feel or ease of scrolling because the Fitbit app.

The Vivosmart 4 does show reminders to breathe and chill out in case your resting coronary heart charge appears to be going haywire, which is a helpful function, significantly in as we speak’s local weather. And if you would like your steps to be entrance and heart, you may make them first in your menu — or, if you would like actions, you are able to do that too. It’s as much as you and absolutely customizable.

This tracker additionally claims to have extra superior sleep monitoring, together with REM cycle and blood oxygen saturation ranges through its Pulse Ox sensor. Finally, although, we discovered it uncomfortable to put on whereas sleeping and ended up taking it off midway the night time, so we didn’t get an correct learn.

Garmin Vivofit 4 ($90.19;

Garmin Vivofit 4

Garmin Vivofit 4


This smaller and cheaper tracker affords most of the identical apps and choices because the Vivosmart, nevertheless it does have one standout high quality which may be attractive for some: a button. Of all of the trackers we examined, it was the one one to supply a button to navigate the on-screen menu. This isn’t a necessity, however for many who desire one thing tangible, it may very well be a decision-making function. Like all Garmin units, this one additionally connects to Google Play, iTunes and as much as 15 different apps, so you’ll be able to simply combine varied subscriptions into your tracker. You may also get a climate studying when you’re making an attempt to resolve whether or not to do an indoor or out of doors exercise. Our largest gripe with this machine, nevertheless, is its house display, which we discovered to be probably the most troublesome to learn until we had been in whole daylight.

Withings Hybrid Smartwatch Metal HR ($179.95;

Withings Hybrid Smartwatch Steel HR

Withings Hybrid Smartwatch Metal HR


Of the seven health trackers we examined, that is the one one which may very well be mistaken for a watch. And for many individuals, it is a main promoting level. Its display affords a clock, a stopwatch and the entire data conventional trackers have, like coronary heart charge, energy burned and different information. For small wrists, although, we discovered this machine to be too massive.

With Withings, you obtain its Well being Mate app to obtain info in your coronary heart charge in addition to to trace your weight, actions and sleep. Like trackers, you may also obtain textual content or telephone alerts and join it to Amazon Alexa to provide verbal cues. To gather information on health, you scroll to put the tracker in “exercise mode” and choose from working, swimming and so forth. As a bonus, it additionally claims to trace Ping-Pong, windsurfing, kitesurfing and different distinctive actions. While you’ve completed sweating, you’ll see data on the period of your exercise and energy you expended. And its battery life is without doubt one of the most spectacular we noticed — even after carrying it for a number of days, it no means fell beneath 70% cost.

It’s a stable selection for many who need a bit extra out of their health tracker and are keen to spend a bit extra.

Xiaomi Mi Band 4 ($35.99;

Xiaomi Mi Band 4

Xiaomi Mi Band 4


Although at first look this health tracker appears similar to its dearer opponents, the expertise doesn’t examine. After we had been establishing the machine, our web browser detected a safety danger and mentioned the web site was unsafe. Then, after we did obtain the app for Xiaomi known as Mi Match, it had considerably much less info than the others we examined. You may see your steps, and you’ll choose between strolling, working and biking, however the monitoring options weren’t as dependable as others. Plus, the app closely pushes the corporate’s “skins,” that are customized house screens for the tracker, reasonably than specializing in well being and wellness.

The tracker is comfy to put on and has a glossy look (although the band is just accessible in black), however you should take away the watch face to cost the machine. It’s not an enormous deal and doesn’t take lengthy, nevertheless it’s an added step that different trackers don’t require. Whereas this isn’t the least costly machine on our record, we discovered it to have the fewest options — to not point out that its app and web site appear unstable and needs to be up to date to construct belief with shoppers.

Letsfit Health Tracker ($20;, at the moment unavailable)

Letsfit Fitness Tracker

Letsfit Health Tracker


This tracker was the least costly out of our pool, however we had been impressed with its design and functionally. It’s the one tracker that doesn’t require you to arrange a profile to start utilizing the machine. Meaning you’ll be able to take it out of the field, cost it for an hour and get began. It doesn’t have super-advanced information just like the others we examined, however when you merely need to monitor your steps and your coronary heart charge, it’s an inexpensive method to have a pulse in your well being (no pun supposed). You may obtain the VeryFitPro app to see your stats, however you are able to do so with out giving your e-mail or any info.

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