New Garmin Forerunner 35. Optical sensor up to the access range


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The full analysis is now complete. So if you're interested in all the details of the Garmin Forerunner 35, I recommend you to read the complete review by clicking here.

Garmin today announced a new model (yes, another one) for its entry-level range. The new Garmin Forerunner 35 joins the plethora of models it has launched in the last year that include the Garmin Elevate optical pulse sensor.

The main new feature is the optical pulse sensor, no doubt, but Garmin has taken the opportunity to incorporate other new features in its cheaper (not cheap) racing clock. Of course, the activity monitor is now complemented by the constant recording of pulse data, as in the models of the rest of the range.

Garmin Forerunner 35

Forerunner 35's screen is new, slightly larger than the one on the Forerunner 25 and its resolution is the same (128×128 pixels), but it increases its contrast. What it doesn't get is the color screen of the high-end models. However, the aesthetics are quite renewed and it now has a much more modern look that, combined with the different colored straps, gives it a really nice look.

Garmin Forerunner 35

Despite this larger screen, the size of the clock is reduced, eliminating the two size options that existed until now. In fact, the actual size of the clock is practically the same as the smaller size of Forerunner 25, but I remember that the screen is half a millimeter larger than the one that was present in the larger FR25.

As far as the software is concerned, there are not many new features, except that it now allows you to select between several types of sport, including running, walking, treadmill running, cardio activities and, for the first time in the access range, a specific cycling mode. In the past, the only possibility offered by the clock was to change the rhythm for speed, but in the new model we can have a mode dedicated to each of the sports, presumably with different screens.

And there's little more I can tell you about the new FR35. It's still a watch that puts ease of use before performance, which is what other models in the Forerunner range are all about.

Garmin Forerunner 35, price and availability

The Garmin Forerunner 35 will be available in the third quarter of the year, one month at the latest. You can buy it in four different strap colours: white, black, lime yellow and blue, all of which have black watch bodies.

As for the price, it will be 199 euros.


You can now buy your Garmin Forerunner 35 through Amazon. In a few weeks the complete test will be available with all the details. Remember that by buying through the links I provide you will be helping the site, which is the way to have available the very detailed tests I perform.

And with that... 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. Up to 13 hours in training. But I take this with a pinch of salt because the "up to"...
      is important. That record will probably be without the use of an optical sensor.

      However, this is the price to pay for a lower weight and thickness, and considering which market this Forerunner 35 is intended for, I think the autonomy is appropriate.

  1. I'd like to know what the differences are with tomtom spark cardio.
    I am interested in buying some of these watches and wanted to know which one you recommend.
    excellent site and reviews!

    1. Runner 3 was also presented today:

      If you value navigation, the TomTom will undoubtedly be a better choice, but if you prefer better integration with mobile applications and smartphone notifications, Forerunner 35 is the option to follow.

      I recommend that you read the tests for Runner 2 and Forerunner 25 right here, because the changes are simply incremental and you can see exactly what each one is capable of and which one will best suit your use.

      Or wait for the test units of both models to start arriving and publish the respective analysis.

  2. Since you give us so many opinions and good analysis, I'll leave you my personal opinion:

    I've gone from the Nike Sportwatch to this one... the difference is noticeable and a lot. The FR35 is very light, nice and discreet. I wear it all day as an activity monitor.

    I've tried it running and cycling, the GPS signal is picked up almost instantly (less than 20 seconds I'd say). The wrist pulse seems to give a little less than it should, but still it seems to me that it's quite close to the chest band (where the opposite was happening to me, they were shooting).

    The battery, using it 3-4 times a week in sessions of about 45 minutes on average and constantly as an activity monitor (including updates and synchronizations with the garmin app) can last a little more than 7 days.

    1. Thank you, Javier, for your thoughts.

      Between today and tomorrow, the full test of Forerunner 35 should be ready.

  3. Hello, I would like to know if it has automatic light as the 230, which is put horizontally and turns on, or is that it is always lit, is that I do not have clear that, has a light button (to run at night), ... and the automatic lap that only has it for a km. also lets you program simple series with their breaks, is it correct, thank you very much for clarifying the doubts,

    1. For the illumination it doesn't have wrist turn recognition (unless I remember). You have the illumination button or the automatic function, which lights up when it shows an alert or you press a button. But in this model it also allows to keep the screen always on (the FR25 didn't have this option).

      The automatic lap, if you activate it, is fixed for that distance. It is not possible to change this distance for another one.

      As for the intervals, you can set them in a basic way from the clock itself. This is not the advanced training function that you can create from Connect, but at least you have the possibility to do them. It is also new with respect to FR25.

  4. Hello, I am new in this forum of yours and I would like to consult you about something, the KELLER SPORTS page is Spanish?

      1. Hello Eduardo, thank you very much for the studies, they are very useful.
        How does Forerunner 35's frequency monitor work in the water? I read that it has no specific swimming program.
        Thank you and a greeting

        1. No, it doesn't have a swimming profile. The sensor isn't set up to work underwater either. In the tests I've done on occasion the data may be right... or wrong.

  5. Hello!
    I've been using the garmin 35 for a day now, I'm trying it out and I think it's fantastic but I have a doubt, which is exactly what the backlight button is for?
    Because it seems that it doesn't work, I don't know if you have to turn something on, but when you give it to it, it doesn't do anything, I don't know if it's like that or if it has some fault
    Thank you

    1. I think that the progress between FR25 and FR35 is quite good. 35, apart from providing the optical sensor, has other new features to improve its performance, despite still maintaining a simple device.

      1. I'm looking at gps reloges for running, cycling and swimming (more in pool than open). Do you recommend any particular one? I was looking at the Forerrunner 35, and on this forum I read that it was not going well in swimming...I thought so. Which one do you recommend not to raise the price too much?
        Thank you.

          1. Thank you, I will keep this in mind and read the features, as there are also the 910 and 920xt...but they are very big and too complete watches ...and at the same time, they are a little more expensive ;)

          2. Hi I am in the process of acquiring a heart rate monitor and among my requirements I would like the following:

            - Wrist pulse measurement (without chest strap).
            - GPS.
            - Multisport (running, cycling) and indoor and outdoor measurement.
            - Water resistant or at least still detects heart rate with a sweaty wrist (I sweat a lot during races).
            - Warning by vibration or beep per km run.
            - Speed/pace query during and after training (possibility to save a history)
            - Training history
            - Creation of training plan (training objectives)
            - Heart rate information
            - Information on time and km traveled
            - Auto Pause (timer stop and restart according to the rhythm)

            From what I have read and the advice I have been given, the following heart rate monitors are the most suitable:

            Polar M200
            Garmin Forerunner 35
            Gramin Forerunner 235

            Initially I had thought about the TOM TOM Cardio 3 runner but in the forums they say that the optical sensor is not very accurate in the pulses and therefore I prefer Garmin but I hesitate between the Forerunner 35 and the 235. I know that the 235 is over 200 euros which is my budget although I could assume it.

            I would like to know how the Garmin FR 235 improves the FR 35 assuming that my activity is based on maximum training of 2 to 3 hours and popular competitions of trails of 15 to 20 km, half marathons with times of 1h:35 min and some marathon under 4 hours. I also do bike training, indoor and outdoor and some duathlon.

            Thank you.

          3. I recommend you to read the tests of the three models, because what you propose is quite well explained in them.

          4. Buens tardes, soy Mar, y alfinal me autoregalé el Garmin Vivoctive hr, estoy muy contento de la nueva adquisicion. One question, I find that in the water, it loses tactile sensitivity, ie when I do pool, when you want to save the file, you have no sensitivity. I relate it to the fact that the skin of the hands/fingers are wet, it does not detect it. Is this normal?
            Thank you.

  6. Good afternoon! By kings I was given the Garmin forerunner 35, I have observed that if I am not doing any practice (walking, cycling, etc) the optical sensors are off, it is normal or on the contrary it is a defect and must be returned

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