Fitbit Cost Four overview: Constructed-in GPS and higher sleep monitoring, plus it is fairly

The Fitbit Cost 4 ($150 at Greatest Purchase) has every part you want in a health tracker for below $200. It lastly consists of built-in GPS to trace out of doors exercises independently, it has higher coaching instruments for athletes, and it matches a lot of the similar smartwatch options right into a slimmer package deal than the dearer Fitbit Versa ($185 at Amazon). It is my favourite Fitbit but. For those who’re searching for a health tracker than behaves quite a bit like a smartwatch with out the additional bulk, the Fitbit Cost Four may be the right match. 


  • Modern, minimalistic design
  • Coronary heart price zone notifications
  • Compatibility with iOS and Android
  • Sleep monitoring and evaluation

Do not Like

  • Low visibility in direct daylight
  • No fast reply for messages on iPhone
  • Shorter battery life than the Fitbit Cost 3

Added options with out the added bulk 

There are many nice wearables for athletes, just like the Garmin Forerunner 945 and Suunto 3, which have far more health chops than the Cost 4, however they are not essentially the most trendy. The $150 Cost 4 (£130, AU$230) is a tracker I’ll fortunately put on 24/7 due to its smooth, understated design. For those who’re aware of the Cost 3 ($116 at Amazon), the brand new model would not look a lot totally different — it is simply the tiniest bit bulkier in your wrist. 

The display can solely show in black and white, however I like that it is almost half the scale of a conventional smartwatch, such because the Apple Watch ($399 at Apple), and it additionally does away with bodily buttons. As a substitute, you management the Cost Four with a mix of the touchscreen and by urgent the left facet of the tracker to navigate settings. The touchscreen is not as responsive and it takes a couple of seconds to gentle up if you increase your arm to wake the display, however I ultimately received the place I wished to go. The one time the lag actually bothered me was whereas I used to be working and wished to rapidly look at my stats with out taking my eyes off the street. Just like the Cost 3, it is also arduous to see the display in direct daylight. 

The common Cost Four is available in three totally different colours with silicone sports activities bands, however the Particular Version, or SE, model that I examined out additionally comes with a woven band choice for $20 extra. Straps are straightforward to swap out (not like the Versa 2 ($200 at Greatest Purchase), which has tough toggles) and for those who’re upgrading from the Cost Three you can use these bands on the newer tracker. There are additionally a bunch of third-party strap choices out there to customise your look. 

The Cost Four is snug to put on all through the day and would not dig into my pores and skin once I tighten it up throughout a run. You may also put on it to mattress. Like different Fitbits, it additionally tracks your sleep. I will not go so far as to say that it is snug to put on in mattress, however a minimum of I did not need to rip it off in the midst of the evening like different trackers. 

The Cost Four pushed me to run quicker

As a primary health tracker, the earlier Cost fashions already checked a lot of the containers: measuring steps, energy, flooring climbed, coronary heart price and distance (utilizing your telephone’s GPS). However that wasn’t sufficient for extra severe runners like me. I am certainly not an elite athlete, however I do run frequently, so having a built-in GPS is excessive on my want checklist. The GPS permits the Cost Four to map your route throughout an outside stroll, run, bike journey or hike with out having to depend on your telephone. 

I’ve gone on a couple of runs and the Cost Four has given constant distance readings on the identical route with and with out my telephone. You may also see a warmth map of your route on the Fitbit app, which additionally signifies the depth at which you had been working based mostly in your coronary heart price. 

The one different Fitbit machine that provides built-in GPS characteristic is the Ionic ($205 at Amazon) watch, but it surely’s now over two years outdated and I discovered it too massive and ponderous to put on frequently.


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The Cost Four tracks over 20 totally different actions, from biking to yoga. It is also water-proof as much as 50 meters just like the Cost 3, so you need to use it for swimming. You may program as much as six train shortcuts on the Cost 4, however you do have to decide on them and sync from the telephone app. You may also set it to trace your runs routinely, and set targets for issues like tempo, distance or energy burned earlier than you begin every exercise. 

GPS isn’t the one instrument for athletes. The Cost Four has added a brand new metric known as Lively Zone Minutes, which makes use of your coronary heart price zones to find out the depth of your exercise. The purpose is to have 150 lively minutes logged by the tip of every week, however you may enhance or lower the goal based mostly in your health stage. 

Just a few years in the past, Fitbit began breaking out coronary heart price knowledge into coaching zones for every exercise, based mostly on age and weight. After a exercise you may log into the cellular app and see how lengthy you had been in fats burn, cardio or peak. The Cost Four provides real-time coronary heart price zone notifications so you may take motion throughout your exercise. 

I needed to push myself a lot tougher than typical to get my peak coronary heart price alert to pop up on the display (you additionally get a buzz in your wrist if you attain every zone). I spotted I would been overestimating my effort and it was useful to have the Cost nudging me to get out of my consolation zone. I can see this being a superb coaching instrument for those who’re trying to break your private file in a race.

Battery life takes successful

The one draw back about having GPS on the Cost is that it will gobble up your battery quite a bit quicker than on the Cost 3. Fitbit says the Cost Four can last as long as seven days on a cost, however I barely made it to day 4 earlier than having to plug it in.

I did not thoughts having to recharge after 4 days, however for those who’re trying to get essentially the most out of your battery life (and are planning to make use of it at evening) I might advocate turning off the GPS when it is not in use. You may simply have to recollect to do that after your exercise. You are able to do this from the train shortcuts on the Cost. Simply swipe up from an exercise that makes use of GPS, like working or biking, and toggle it off. 

Sleep monitoring has some severe advantages 

I’ve by no means gotten a lot out of monitoring my sleep previously. With a 6-month-old child and a toddler waking me up at odd hours of the evening I used to be scared to even see my stats the following morning, not to mention get graded on my sleep. Every morning, the Fitbit app provides you a Sleep Rating based mostly on every part from sleep length to sleep levels, coronary heart price and variations in blood oxygen ranges, aka SPO2. 

After a couple of nights of testing, it is really supplied some helpful knowledge about my sleep habits. For starters, I’ve gotten a passing grade (above a 60) each single evening, regardless of waking as much as nurse my toddler. The app advised me it is regular to spend as much as 45 minutes awake every evening, which was comforting. It additionally provides you recommendation on the way to enhance your rating, like preserving your bedtime constant, no matter how late (or early) it’s. 


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Everybody can see primary info within the app, like how a lot sleep you get and its high quality, however Fitbit Premium subscribers get entry to coronary heart price and blood oxygen knowledge. I did not see something out of the peculiar in my chart, however I can see this characteristic being extraordinarily useful for individuals who suspect they may have a extra severe sleep-related situation like sleep apnea. In that case it may be value the additional $9.99 (£8.99, AU$15.49) a month for a premium account. 

There may be one foreseeable draw back: With all this sleep knowledge I fear that I’d change into depending on the Sleep Rating to really feel energized in the course of the day. That’s, a low Sleep Rating could subconsciously make me really feel drained, though I felt like I received a superb evening’s relaxation. 

Greater than only a health tracker

The Cost Four goes past well being and health monitoring with a couple of sensible options up its sleeve. It mirrors each notification you will get in your telephone whether or not you’ve gotten an iPhone ($699 at Apple) or an Android telephone, however solely Android customers will have the ability to reply to messages with preprogrammed fast replies. 

You continue to cannot retailer music onboard to take with you on a run, however for those who’re a Spotify Premium subscriber, it is possible for you to to make use of the Cost Four as a primary wrist distant to pause and skip tracks. There is no quantity management although. 

It now additionally features a new agenda app together with the present timer, alarm and climate apps. 

You can arrange Fitbit Pay in your wrist and use the Cost Four on any tap-to-pay fee terminal because the tracker now comes with built-in NFC (beforehand, you had to purchase the particular version Cost to get Fitbit Pay). Sadly it nonetheless would not have as many financial institution companions as Google or Apple Pay and was not appropriate with my main financial institution (US Financial institution), so I could not try it out. I am additionally quarantined at dwelling, so most of my funds are made on-line in any case, not at brick-and-mortar shops. 

All the things you want in a tiny package deal

The Cost Four does quite a bit contemplating it is basically a health tracker. However you do not find yourself saving that a lot in comparison with a smartwatch like Fitbit’s personal Versa 2 (the common Cost Four is $50 lower than the Versa 2, which solely has related GPS).

So the value alone isn’t cause sufficient to decide on the Cost 4. For me, it is about getting every part Fitbit presents, together with GPS, in a slimmer package deal than the Versa 2. The Cost Four is my favourite Fitbit to this point.  

First revealed on Might 18.

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