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COROS EvoLab, changes to the platform announced today

Today starts the public beta, final release in a month


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COROS announces today EvoLab, the next piece of the puzzle they are putting together. It is amazing the road that COROS is going through, a brand that started launching a smart helmet on Kickstarter and that five years later is knocking on the doors of leading GPS watch manufacturers.

COROS EvoLab is an update for its platform, focused on the scientific analysis of your workouts to be able to track fitness, fatigue and performance.

Today, COROS announces a public beta to which 1,000 users of the platform will be able to register (for COROS PACE 2/APEX/APEX PRO/VERTIX watches). If everything works as it should, EvoLab will reach all users around mid-June.

I've been testing the beta for a little over a week, and although it's not enough time to extract all the data and know the performance of the platform perfectly, it does allow me to be able to explain what is included in the update and what is to come.

What is COROS EvoLab

EvoLab is the new COROS platform to track training and fatigue to optimize performance. It is not a different application, it simply integrates into the current COROS app to give us more detailed information about how we are training.

COROS tries to provide the same information as other manufacturers provide. Garmin has its Training Status and everything that revolves around, Polar offers Training Load Pro and rest metrics, Suunto has just incorporated the TrainingPeaks algorithms into its platform...

That was a missing link on the COROS proposal, because until now it only had AI Trainer which, as you may remember from some of the COROS watches reviews I've published, left enough to be desired. EvoLab arrives to replace it by offering a more reliable metric and more data around your training.

Key metrics for general fitness in EvoLab

I'll start with the app changes, because that's where we're going to find the heart of EvoLab. The most visible change is on the profile page, which now adds both generic training metrics (1) and those focused on road running (2).

COROS EvoLab - App

Table number 1 encompasses specific training load metrics. The total training load for 7 days is THE METRIC. That graph is what determines if you are putting the right load into your workouts. If we click on it we can see it enlarged.


COROS EvoLab - App

Any workout of any sport will allow add data, as it is based on TRIMP, a perfectly validated load quantification method.

We need a minimum amount of data on the platform, at least more than I have introduced these days. The goal is for us to keep our graph (light blue line) inside the value-range that marks the application (darker blue). If we pass it we run the risk of falling into overtraining, if we fall short our physical fitness and performance will drop.

For this metric to be reliable, you will have to record each and every one of your workouts, so that the entire load is correctly quantified.

Weekly load can also be seen on the watch, as the update also includes a firmware that provides more widgets with information.

COROS EvoLab - Weekly charge

Then we have the metrics of long-term load, short-term and fatigue. Those of you who are TrainingPeaks users are already more than familiar with them, because they are basically the same metrics.

Base Fitness (Fitness or CTL in TrainingPeaks)

This is the average daily load for the last 6 weeks. High values indicate that our workouts have been long and/or intense, and that we are prepared to perform such trainings. That value is the daily average of TRIMP for all our workouts. So if your base form says 180 (for example), be careful to frequently perform workouts of much higher load, because then something will break.

It is necessary to wait 42 days until you have real values. As you can see, in my case the value is very low because I have only been introducing values on the platform for a few days.

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Load Impact (Fatigue or ATL in TrainingPeaks)

It measures the short-term training load for the last 7 days. It takes into account trainings that have recently been performed with the same TRIMP values.

Fatigue (Form or TSB in TrainingPeaks)

It's the difference between Base Fitness and Load Impact on a scale of 0 to 100. A low value indicates that we can do intense workouts, and on the contrary a high value will indicate that we should be cautious.

Remember that in the case of fatigue, the data is a percentage (or on the scale from 0 to 100), and not a direct subtraction as is the case with the TrainingPeaks Form.

This will also appear on the watch.

EvoLab CHOROS - Training Load

Where these metrics are important is when we look at graphs in the medium or long term. For this I'll use the one that COROS sent me with the more workouts synced on the platform.

You can see how the Base Fitness has an upward trend, showing that the athlete is increasing his/her physical shape. And also how impact and fatigue affects the training load.

COROS EvoLab - Base Fitness Trend

Then there are more generic metrics, such as the 4-week intensity distribution chart.

COROS EvoLab - App

COROS EvoLab - 4 weeks distribution

Also the training effect in aerobic and anaerobic terms, as well as a recovery timer.

COROS EvoLab - Training effect

The examples we have seen in the previous section are valid for any type of training. It doesn't matter if you're a trail runner, if you're doing triathlon or if you're preparing a marathon. All the workouts we perform will have a TRIMP assessment based on the intensity of heart rate.

Here we find a difference in the proposal made by COROS and is that if it detects that the heart rate data are not correct, for example because the optical HR sensor does not seem reliable, then the algorithm will also take into account other values such as pace zones.

But within EvoLab there is also a specific section to give values about sports. At the moment it is only available for road running, although COROS says they will develop more algorithms and metrics specific to other sports in the future.

Key metrics for road running

I go back to the image I posted before about the new profile screen design. The specific metrics for road running are those that are within the sections I have framed with a number two.

COROS EvoLab - App

We have the following:

  • Marathon level: A metric that defines how prepared you are to run a flat road marathon based on things like workout history, VO2max, threshold zones, efficiency, etc. A high value will indicate the ability to run this distance in less time than if the value decreases.
  • Running VO2Max: Estimation of maximum oxygen consumption for running.
  • Running performance: This metric compares how good your last workout is compared to your Marathon Level, in a range of 80% to 120%. Valid for key workouts, if you have done a recovery workout the value will obviously be very low.
  • Threshold pace: Pace at which you can run without accumulating excessive lactate. The threshold pace is more demanding than a normal run, but lower than the usual pace for 5K/10K races.
  • Threshold heart rate- The same as before, but in heart rate values.
  • Race predictor: Race time situations for different distances.

Again, to have a clear picture of what would be your level of road running it is necessary to accumulate more workouts than I have been able to accumulate.

For example, COROS EvoLab estimates that my VO2max is 50, a value much lower than any other platform gives me. The reason is that for this estimate EvoLab uses the 15 minutes with the best average pace of a workout. I do a lot of interval workouts, and very occasionally I have long interval workouts with medium to high intensities. So until I do such a workout I won't see a real value.

And the same goes for all other metrics. Perhaps lately I've done more intense workouts than at an easy pace, so that may have confused the algorithms a little.

Among all of them I think that Marathon level is interesting, because it is perhaps the most innovative. From that value, EvoLab performs the estimation for the rest of distances.

COROS EvoLab - App

Unlike other platforms, besides giving you an approximate time it also tells you what would be the average pace. Thanks COROS, because you avoid me having to calculate or looking for online calculators.

About my estimates... 5 and 10 kilometers may be slightly optimistic, although it would depend on the conditions of the day and how rested I could be to achieve those results. It could be feasible, and otherwise I don't think it would be too far off.

The half marathon seems more complicated to me, although if I did a very specific training for several weeks I could still get quite close.

Marathon? I find it VERY optimistic. But I repeat, all these data are based on little volume of workouts. The platform would need to be fed on more data for more days in order to be confident in the information it offers me.

Running performance is also a new metric. COROS defines it as follows:

"Running Performance measures how good your last workout was in comparison to your
Marathon level in a range of 80% to 120%. More than 105% means you are overachieving
and you're likely to reach your peak in the race."

That is, it compares the level of demand of the last workout with the values accumulated over time, regardless of whether you are training for marathon or any other distance. Constant values below 100% indicate that you are losing performance, and exceeding 100% in some workout will tell you that you are improving.

EvoLab compatible models

The platform update with the inclusion of EvoLab is for all COROS customers. Whether you purchased an APEX Pro for 500€ or a COROS PACE 2 for only €200, the upgrade is the same for the entire range. Which is to thank COROS.

The only difference is with the original COROS PACE which, due to hardware limitations, it won't have the different widgets you've been seeing throughout the post. But you will have access to all the information straight in the app.

Therefore, with the next COROS app update, there will also be an update for the COROS PACE 2, COROS APEX, COROS APEX Pro and COROS VERTIX that will include all these new features.

New Colors for COROS PACE 2 and a keychain charger

Taking advantage of the EvoLab presentation, COROS also announces three new colors for its latest model, the COROS PACE 2. These are part of a collection called COROS PACE 2 Speed Series and will be available as a limited run.

The new colors are red, green and gold/yellow. The price is the same as the first COROS PACE 2 .

COROS PACE 2 Speed Series

Lastly, we have a new accessory, a keychain charging cable that you can store somewhere more practical than the cable that comes with the watch itself. Flat and small format that you can have in your keys or backpack, so you can charge the watch at any time without having to bring the original cable with you.

COROS Keychain


Undoubtedly the platform was the most neglected part of the COROS proposal, especially if we think about the higher-end models. A COROS PACE 2 had many reasons to stand out, even despite its platform, but an APEX Pro or VERTIX had it more complicated when compared to similar priced models, as it forced us to use third-party platforms if we wanted to keep an exhaustive control of the training load and our performance.

As I said at the beginning, EvoLab is a new piece of the puzzle COROS is making; and if manufacturers like Polar or Suunto don't wake up, it can be a new nail in their coffin.

The updates and news pace that COROS is following is very high. It's no longer that helmets manufacturer that launched the PACE, which was little more than a copy of Garmin. COROS is carving its own name in the industry by investing a lot of money in what many others had neglected: software and development.

They have had good devices for years, a very reliable hardware that offers very good results, but that pale slightly in software given they didn't have enough time on the market. And this is precisely what they're focusing on right now.

We finally have a training load tracking on the platform (valid for all sports), adding specific metrics for road running. COROS indicates that this is only the beginning and that there will be more similar features for other activities. I'm anxious to see what they're developing.

Remember, you can apply to join the beta if you are one of the first 1,000 to do so, if you don't you'll have to wait until mid-June for the final release.

Good times are coming... thanks for reading!

Eduardo Mateos

I've been surrounded by electronic devices of all kinds for more than 25 years. Using them, testing them, taking them apart and dissecting them. Long distance triathlete: I swim, run and cycle for a long time. Maybe too much.

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  1. The analysis you do is fantastic. Congratulations!!! I've been a garmin user for years, but I'm itching to see how well Coros is working and especially the Pace 2 model. It's not that it brings anything new but I want to try their products and the platform because of the amount of improvements they keep introducing. The problem is that I don't want to leave Garmin, nor lose all the training history, nor do I want to alternate watches because then what is done in one ecosystem does not appear in the other with what it implies in terms of performance metrics and so on. The thing is that I do not know if there is a way to synchronize for example Coros with Garmin so that what is done in one appears in the other and vice versa. Mostly so that I don't have to constantly wear two watches at the same time.
    Again thanks for your site. The next device I buy I use your links (the pace 2?? 😁😉).

    1. Thank you, David.

      In Garmin Connect you can import activities from a FIT file, for example. With COROS you can do the same through this portal access:

      Additionally I believe the iOS RunGap App supports both platforms to do semi-automatic synchronization. But you can't do it from one platform or the other.

  2. Hello, Eduardo.

    Faithful devourer of your reviews. This Coros and the platform are promising.

    How do you see it for cycling? You say there are specific metrics but mostly for asphalt racing, do you contemplate power?

    Thank you very much.

    1. Thank you Nuria.

      For cycling it is like any other watch of any other brand, it has the basic functions and there is not much to differentiate it from a Polar or a Garmin, for example.

      As for the running metrics, at the moment it does not support power. The reason is that it works through zones. COROS has heart rate and pace zones, but not for power (at least for the moment). So power is not part of the TRIMP values. But I wouldn't be surprised if it does in the future, especially for the trail running metrics they are preparing, where obviously pace and heart rate do not give a true picture of the intensity of the activity.

  3. Hello, good afternoon, I just read the article, I've been with a garmin forerunner 45 almost 1 year, which was when I started running more seriously and I'm noticing that I need something bigger but that I do not go too much budget, that I would recommend the garmin fr 245 or the coros pace 2? Thank you.

  4. Hi, great job. One question, I'm interested in the coros apex but it's a bit of a turn-off that it's an old model that's been on sale for almost 3 years. And of course, I intend to have it for as many more. I still have my suunto ambit 3.
    Should I buy it or is a new version expected soon?
    The apex pro is going out of my price range and it's hard to see them going down in price.
    Another thing, to contact the technical customer service, is it in Spanish? Is there a good after sales service in Spain?

    1. Thank you, David.

      No, COROS is not about price reductions... As for new models, at the moment all the watches are up to date and all include the same software, so even if a new model comes out with new features, it will most likely reach current models.

      As for customer service, recently a Spanish company has taken over the distribution of the brand in Spain (the same distributor as Saucony), but I don't know what their plans are.

  5. Hi, I have had a coros apex for a year and very happy. Very good battery life. Software continuously updated and designed for multiple disciplines. The question is related to the charger port. I see that it is not a normal female USB port, but a male one. How do I charge it? where do I connect it to? (I think it's a stupid question, hehe, but I can't understand it). Not to the mobile, because most of them are not power bank (they do not charge other elements), to the PC either because what is connected are females with a larger square plug, so? On the other hand, is there a charger of the type Coros Apex of other brands (cheaper or white label) or is exclusive design of Coros? Thank you very much

    1. It is a normal connector, but in slim format. You can connect it to any charger with standard USB output.

      Other brands of charging cables are probably not available since Coros does not have the sales volume of Garmin or Polar.

  6. Hello
    Does the metrics system work with the Trail mode? I've been riding only in trail mode for 10 rides and it doesn't give me anything, only that I have to run 7 days.

    Thank you

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