NO.1 F4 important updates

November 4th, 2017


The new firmware is just released. We have made some important updates in this version.

  1. Long press the key button to enter the menu;
  2. Double click to exit the swimming mode
  3. Improve the dynamic heart rate monitoring
  4. Data report of sleep monitoring on F4

This is the main updates, any issues feel free to comment.


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  • Edward

    Mar th, 2018 4:59 PM Reply

    Why sleep monitor only work within 9pm to 9am? I really need it could work 24/7 because i rarely sleep at that time…

    • admin

      Mar th, 2018 10:35 AM Reply

      Thank you suggest, will feedback to engineer

  • Mateo

    Mar th, 2018 4:49 AM Reply

    hello, i have bought f4 watch and it works great, except notifications, they are always shown in chinese language… is there any solution?

    • Jon

      Mar th, 2018 11:06 AM Reply

      Hello Mateo, notifications support multi languages. Did you try to change the language setting in your phone? Change to another and then back to yours. After synchronization, the notifications will change to your language.

      • Mateo

        Mar th, 2018 7:50 PM Reply

        Thank you for fast replay. I have try 3 different languages on my phone, and resseting the watch, but notting seems to work..

        • Jon

          Mar th, 2018 2:47 PM Reply

          Hello Mateo, even change to English, the notification is still Chinese?

          • Mateo

            Mar th, 2018 3:22 AM

            I use English as my main language on phone… Yes, notifications still in Chinese… I can send picture…

          • admin

            Mar th, 2018 10:29 AM

            You can sent this problem to , will solve your problem

  • Owaiz

    Mar th, 2018 3:30 AM Reply

    Hi Iam using F4 for 5 days now, I noticed the steps are counting while Iam driving . And so far it has not tracked my sleeping data. I just upgraded the app, got the sleep icon under health sub menu. What should
    I do to make the watch record sleep data. Thanks

    • admin

      Mar th, 2018 3:53 PM Reply

      You can email to offer more detail for example photos, they will solve your problem.

      • Owaiz

        Mar th, 2018 2:29 AM Reply

        Can this watch start recording sleep data ? Any option to limit the watch from counting fake steps or simple hand movements traveling by car steps too? These are the only issues I face.

        • Jon

          Mar th, 2018 4:44 PM Reply

          Hello Owaiz, yes, this watch supports sleep monitoring, it will record from 9:00 pm. to 9:00 am.. But I’m sorry, the pedometer is a bit inaccurate.

          • Owaiz

            Mar th, 2018 1:48 AM

            Thanks for replying Jon, Iam using this for 10 days but it’s not recording my sleep data. Is there a way where I can make it record my sleep data ?

          • admin

            Mar th, 2018 10:58 AM

            Please update to newest firmware, it could solve your problem

  • dejko

    Feb th, 2018 10:14 PM Reply

    I just bougt th f4 smart band. It is possible to fix maybe in next update sleep function for night workers not only 9:00 – 9:00. Can you explaned what is raise hand function and how its work. thanks

    • admin

      Mar th, 2018 11:32 AM Reply

      So far can not update this function

    • Owaiz

      Mar th, 2018 2:20 AM Reply

      Raised hand function means, when you raise your hand on which you are wearing the watch, the display glows and
      You can read the data and after few seconds the light goes off

  • Jose Miguel

    Jan st, 2018 8:03 PM Reply

    Hi. Is it possible to close the FunDo application? It always remains in the background. This is necessary for notifications to work, but it should be possible to close the application. For example, I have a scale with Bluetooth and it does not work because FunDo and F4 have picked up Bluetooth. If I uninstall FunDo, the scale works for me, but I lose the data that FunDo had saved.
    Thank you

    • admin

      Mar th, 2018 3:40 PM Reply

      If close fundo app, can not sync smartphone notice to watch.


    Jan th, 2018 7:44 PM Reply

    It worked today….


    Jan th, 2018 6:57 PM Reply



    Jan th, 2018 5:03 PM Reply


    Sleep monitor not working. Why?

    • Jon

      Jan th, 2018 5:30 PM Reply

      Hello ISTVAN, did you update to the latest firmware?

    • Jenna

      Jan th, 2018 7:07 PM Reply

      Hi what did you do to get it working? Mine isn’t working? Thanks x

  • hassan

    Jan th, 2018 5:00 PM Reply

    what is your solution for persian language in massages and contacts in f4 model?

    • Jon

      Jan th, 2018 11:14 AM Reply

      Hello hassan, F4 supports persian, you can check the incoming messages and contacts.

      • Jenna

        Jan th, 2018 1:41 PM Reply

        Hi I’ve just bought this watch. How do I go about using the sleep results option? I’ve had 3 nights sleep & it’s not tracked 1? Please help. Thanks

        • Jon

          Jan th, 2018 7:00 PM Reply

          Hello Jenna, you need to update to the latest firmware version.

          • Jenna

            Jan th, 2018 12:03 AM

            I’ve already done the update?

          • Jon

            Jan th, 2018 10:50 AM

            The sleep monitor works during 9:00 pm. to 9:00 am. Do you wear it at night? BTW, does the pedometer work well?

          • Jenna

            Jan th, 2018 3:34 PM

            Hi yes I wear it during the night, I’ve done the update also. Is there something I need to do to actually make the sleep mode work? Or just wear the watch as I’m doing? It’s not working at all though? Yes the pedometer works fine & all the other bits, blood oxygen, pressure ect just not the sleep mode? Thanks

          • Jon

            Jan th, 2018 4:29 PM

            Hello Jenna, did you check the sleep monitor in the bracelet? Is there any data?

          • Jenna

            Jan th, 2018 6:49 PM

            Yes checked everything, no data stored anywhere?

          • Jon

            Jan th, 2018 11:45 AM

            Sorry, still no answer/solution from our engineers. Any news I’ll keep you updated.

  • Jaroslav

    Jan rd, 2018 6:52 AM Reply

    Can be GT1 bracelet upgraded using F4 firmware?

  • Deimas

    Dec st, 2017 11:02 PM Reply

    Hi Jon
    I accidentally canceled the firmware update. I can’t turn on the watch. What do I do? ?

    • admin

      Jan rd, 2018 11:05 AM Reply

      in this situation, F4 will restart after few minutes. later you can upgrade again.

  • Ari

    Dec th, 2017 1:33 AM Reply

    Hi jon, the auto wake up is not working for me.. already update with 2.2 version. I tried enable and disable raise hand still not working already connected to fundo too.. what should i do jon??

    • Jon

      Dec th, 2017 4:28 PM Reply

      Hello Ari, does the pedometer work well for you?

  • joe

    Dec st, 2017 8:15 PM Reply

    Can u change the sleep track parameters 9mp until 9am is useless for a night worker like me

    • Jon

      Dec th, 2017 12:19 PM Reply

      ummm, hello joe, I’m sorry about this, because F4 doesn’t support custom sleep. 🙁 But there is a trick, you can manually change your phone’s time, after synchronization, you can’t disconnect it. And you can wear it when you go to bed, the sleep monitor will work as it should be.

  • Juan

    Dec th, 2017 3:35 PM Reply

    Another issue, when power off the device in settings option, when it wakes up again, it is frozen in the main screen even if you have unselected that option. so it is consuming battery very quick.
    I am using last firmware version.

    please for future firmware update, put just another main screen with just calories and steps and the time. and also put a whole menu just for steps count.

    Any idea when the new release is going to come?


    • admin

      Jan rd, 2018 11:42 AM Reply

      Thank you suggest, we will keep update firmware

  • rodrigo

    Dec th, 2017 2:35 AM Reply

    I have just bought the F4 smart watch and downloaded the FunDo Pro app. My impressions:
    1. Can anyone please explain me how to monitor sleep on F4? I have been wearing it for 3 days now, but not sleep data is recorded. Is there any setup required? Or I have a faulty device?
    2. Also, the pedometer overestimates daily step count. Ie, if I am standing still washing dishes, the hand movement will activate the acelerometer and input as steps. Perhaps the sensitivity is too high has to be reduced in the next firmware upgrade.
    3. The heart rate test is set to measure every 60 minutes, all day, but so far, not a single automated measurement has been done. I have to manually enter the menu and measures. Also, Syncing between the watch and the app in not occurring. I have to press the sync button in the app to sync data.
    4. I would like automated BP and oxygen sats funtion be incorporated in future upgrades as there is already for HR (but functional please!)
    5. A link to an email for contact would be interesting in the “about” section of the app.

    • Jon

      Dec th, 2017 6:33 PM Reply

      Hello rodrigo,

      1, Did you try to update the firmware? Wait, does the raise hand feature work? First, update the firmware to see if it works, but if the raise hand feature doesn’t work, then it is the hardware issue.

      2, the pedometer, the G-sensor depends on the hand move.

      3, yes, I received some reports about this, just update to the latest firmware.

      4, thanks for your suggestion, sorry, F4 can’t support this. 🙁

      5, you can go to Google Play and leave your comment there. 🙂

  • Brent

    Dec st, 2017 9:04 PM Reply

    Hi again Jon.
    I’ve tried that setting quite a few times and it didn’t work.
    I reset the watch.
    I deleted the app and reinstalled it again.
    I then paired the watch and phone again…. and none of this helped.
    This feature hasn’t worked since I unboxed the unit.
    Does this mean that the watch is faulty and should i rather return it?

    • Jon

      Dec nd, 2017 2:44 PM Reply

      Ah, Brent, sorry for the inconvenience, yes, as your description, this product is faulty. Please contact the seller for help.

  • Brent

    Dec st, 2017 5:01 AM Reply

    I have the same problem. The watch doesn’t wake up on turnaround. I need to touch it for it to wake up.
    Is there an easy fix or should I just return it?

    • Jon

      Dec st, 2017 12:15 PM Reply

      Hello Brent, first, go to the Fundo Pro settings, tick up the auto-wake-up feature. If it still doesn’t work, make a reset, and then enable the feature again.

  • Tui

    Nov th, 2017 8:53 AM Reply

    I’ve just unpacked the No.1 F4 for 2 days. The battery was claimed that it can be stand by for 7-10 days, but for me it is only 1 or 2 days has running out of battery even when I turned off the notification. Could you help me about this?

    • Jon

      Nov th, 2017 6:55 PM Reply

      Hello Tui, this kind of battery issue, it is the hardware issue, please contact the seller for help. 🙁 Sorry for the inconvenience.

  • Dimitris

    Nov th, 2017 11:22 PM Reply

    Hi I have question about the operation of the band. In random times (at least I haven’t figured out a specific period), the band vibrates and displays a round icon with a “tick” inside.
    Could you tell me what is this? It is not mentioned anywhere in the manual or documentation. I have firmware version 0.2.2

    • Jon

      Nov th, 2017 6:45 PM Reply

      Hello Dimitris, the ‘tick’ symbol means that you reach your daily goal.(steps) It reminds you that you have achieved the goal of exercise.

      • Dimitris

        Nov th, 2017 9:10 PM Reply

        Ok thanks! It would be good to provide a new structured documentation with all missing information that is gathered from comments in order to avoid such questions

        • Jon

          Nov th, 2017 10:46 AM Reply

          Thanks for your suggestion. 🙂

  • Juan

    Nov th, 2017 1:55 AM Reply

    Hello Dear, when we will have new firmware update? thanks.

    • Jon

      Nov th, 2017 12:28 PM Reply

      🙂 For the weather issue, sorry, please be patient. 🙂 We still work on it.

  • woranat

    Nov nd, 2017 2:03 PM Reply

    I’ve same problem as Kamil after updated firmware v.0.2.2. the height in outdoor menu is not being displayed correctly. Earlier it was 30 m and now it’s incorrect 300 m.
    I bought 2 pieces one show attitude 30 m. (v.0.1.8) another show 300 m.(v.0.2.2).
    The air pressure are almost the same at 1010 hpa.

    • Jon

      Nov nd, 2017 3:28 PM Reply

      Hello woranat, please check this tutorial. You can download the firmware and flash it into your F4.

      • Anonymous

        Nov th, 2017 1:33 PM Reply

        Hi Jon,

        Are there any plans on deploying a new firmware update? It would be super-cool if the height problem got fixed to what it was showing on 0.1.8 version in next release, because now in version 0.2.2 sleep tracking works, although it wasn’t working in 0.1.8.

        • Jon

          Nov th, 2017 12:32 PM Reply

          Hello Anonymous, thanks for your suggestion. Of course, we’ll keep working on it. 🙂

          • Jesus

            Jan th, 2018 4:17 PM

            Do you have news about the fix for the problem with altitude and weather? We waiting it. Thanks

          • Jon

            Jan th, 2018 11:16 AM

            Hello Jesus, I’m sorry but no, still no news about it. 🙁

    • woranat

      Nov th, 2017 6:00 PM Reply

      Thank you every body for help.

  • Juan

    Nov th, 2017 9:41 PM Reply

    Hello Guys,

    i bought 2 of these bracelets, one has low bright screen and long battery and the other is brighter and it barely lasts 1 day..

    I had firmware version 2.2 , I noticed that changing main screen ( the one that shows time, steps , calories etc) with the simple clock it now lasts half day more.

    I have downgrade the firmware to the version 1.7 and i am checking if the battery lasts bit more with the main screen with all the data… but i am afraid that it will not change anything.

    Please is there any solution? modify bright or something?

    • Jon

      Nov th, 2017 10:23 AM Reply

      Hello Juan, it seems that it is not the firmware issue, but the battery. If the old version doesn’t work for you, then this is the battery problem. I can’t help you please turn to the seller for help. :/

  • Jose Miguel Gomez

    Nov th, 2017 9:25 PM Reply

    FunDo presents a problem when it loses connection to the F4 (for example, when the F4 runs out of battery).
    I think FunDo is continually trying to reconnect and consume all the phone’s battery.
    Thank you.

    • Jon

      Nov th, 2017 12:13 PM Reply

      Hello Jose,

      Thanks for your report, I’ll tell them about this.

  • Jose Miguel Gomez

    Nov th, 2017 9:28 PM Reply

    I want to know if it is possible to modify the brightness of the screen of the F4, which is quite low.
    And I want to offer myself to improve the Spanish translation, which now has many errors.
    Thank you.

    • Jon

      Nov th, 2017 11:02 AM Reply

      Hello Jose, sorry, firmware update can’t improve the brightness. About the translation, thanks, I’ll ask our engineers whether we can change the translation. 🙂

  • OMdra

    Nov th, 2017 4:02 PM Reply

    Hi, is somewhere a link to download new firmware, because through Fundo app was ended on connection problem. Thanks

    • Jon

      Nov th, 2017 5:19 PM Reply

      What’s your F4 firmware version? And app version? Reset the F4, try again.

      • OMdra

        Nov th, 2017 6:03 PM Reply

        I have now FW version 0.1.8 and App version 1.2.4.
        After restarts and bindings it is still same. On “Firmware upgrade” screen is shown 0% and on the phone notification bar is line “Upload failed / DFU process failed”.

        • Jon

          Nov th, 2017 11:31 AM Reply

          Later I’ll upload the firmware and please follow this tutorial to update it.

          • OMdra

            Nov th, 2017 3:17 AM

            OK, thank you.

          • OMdra

            Nov rd, 2017 12:19 AM

            After a manual reflashing of the firmware version 0.1.8, it was already upgraded to version 0.2.2 over the Fundo app.
            But the problem with the altitude is the same as others.

          • Jon

            Nov th, 2017 3:30 PM

            Hello OMdra, after flashed the 0.1.8 firmware, don’t upgrade it. We’ll keep working on this.

  • Kamil

    Nov th, 2017 3:23 PM Reply

    Hi, I updated the firmware from 0.1.8 version to the latest. My issue is that now the height in outdoor menu is not being displayed correctly now. Earlier it was 222 m and now it’s incorrect 2170 m. I am running Android Nougat, latest version of Fundo Pro, Xiaomi Redmi 4x

    • Jon

      Nov th, 2017 3:53 PM Reply

      Hello Kamil, yes, we also received such report. Thanks, we are going to release a new version, we’ll see if this one fixes it. Any questions feel free to comment.

    • Jon

      Nov th, 2017 5:50 PM Reply

      Can you tell me the air pressure on your bracelet?

  • Panato Demis

    Nov th, 2017 4:46 PM Reply

    I just update my F4 but the double click to exit the swimming mode isn’t the solution. The device isn’t able to register all the swimming session.

    • Jon

      Nov th, 2017 3:33 PM Reply

      Yes, Pannato. I just replied this question. 🙁 Too bad. We’ll keep on working.

  • Hein Aung Zaw

    Nov th, 2017 6:55 AM Reply

    I’ve just updated it from in-stock 0.1.8 version and seen the improvements.
    I’d like to ask a question. Does “Auto wake up on hand flip” function work on this firmware? Because mine didn’t work since I bought. Is it only on mine or needed to upgrade future firmware? Best

    • Jon

      Nov th, 2017 12:39 PM Reply

      Does the pedometer work well?

      • Hein Aung Zaw

        Nov th, 2017 8:12 PM Reply

        I think it does. It count some steps and show in FunDo app.

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