NO.1 F4 important updates

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.


140 thoughts on “NO.1 F4 important updates”

  1. 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

  2. Panato Demis

    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.

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

  3. 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

    1. 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.

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

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

      1. 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”.

          1. 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.

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

  5. Jose Miguel Gomez

    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.

    1. 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. 🙂

  6. Jose Miguel Gomez

    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.

  7. 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?

    1. 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. :/

  8. 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.

      1. 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.

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

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

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

  9. 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

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

      1. 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

  10. 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?

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

  11. 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?

    1. 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.

      1. Hi Jon… thanks for your reply.
        But I can’t find this setting (auto-wake-up) anywhere in the app to automatically turn on the watch. Please tell me where I should be looking.
        App ver 1.2.6
        Firmware 2.2

  12. 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?

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

  13. 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.

    1. 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. 🙂

  14. 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?


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

    1. 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.

  16. 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??

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

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

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

      1. 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

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

          2. 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

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

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

  19. AbueloDelClan

    I suspect that the app don’t access to the info of the gps. Because the altitude, the uv and the weather is always the same and is not real information.
    Other smartbands can take blood pressure hourly… why not take it in account for a new firmware version?. Thanks.

  20. Jose Miguel

    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

    1. Jose Miguel

      I reiterate my offer to perform the translation of the application into Spanish in a disinterested way.

      1. Thanks in advance for your help. If we’ll release the Spanish version, we’ll ask for your help. 🙂

  21. HI
    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

      1. Not being able to record sleep outside 9pm and 9am is my biggest issue. Be nice if u guys could make it useful for those of us who work nights.

        1. Hello Jacque, I’m sorry for the inconvenience, this watch does not have an option to turn on/off the sleep monitor. But as you know this watch supports 12/24 hr format, if you set your phone am as pm, then you can use the sleep monitor in the daytime.

    1. 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

  22. Hi Jon,

    Since updating the FunDo Pro app to 1.2.8 I’m having big problems with the bracelet loosing bluetooth connection each time the display of my smartphone goes off. I’m using Xiaomi Redmi 4x on Android 7.1.2. The firmware is: 0.2.3. I set FunDo as guarded application so it would continue to work in the background, while the display gets turned off. But still the blueetoth connection is getting lost every time. Could you help with this problem?

    1. Hello Kamil, the problem maybe your phone’s settings, but not the bracelet.

  23. 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

      1. 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.

        1. 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.

          1. 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 ?

  24. Hallo i have just bought the f4. I wanted to have the pulse the whole day long. But it seems that it not functions. Only the manual pulse is in the statistic. Training also not put the pulse into a statistic. How can i fix it?? I have firmware 0.2.3…
    I like the bracelet but the whole day pulse function is the most wanted one. So how can it change???

  25. The main reason I chose the F4 is the weather update. I figured it wouldn’t be perfect. I just wanted to a general idea of the weather outside before I get out of bed. So far, it only shows in celsius, and it always gives me a message that “this function is not supported.” The temperature reading has changed sometimes, just no where near accurate, not even close. In fact it ususlly reads 46-64 degrees. Any idea if a future update will fix the weather? And yes, I have updated, and all other functions works as expected. Overall, I am very happy. All functions seems to be very accurate. I just would like the weather to work.

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

    1. 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.

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

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

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

      1. OK, but on which screen? I have set the main screen of the F4 to analog clock and I cannot find the information about my steps.

        1. Sorry Dario, you need to go to watchface settings, change to the one which supports steps display. 🙂

          1. How do you change clock faces on the device I can’t find the menu option on the watch or in the app?

    1. Now, with firmware 2.6, my F4 counts only half steps then before with vertion 2.3. I have just walk about 30 steps to verify it and the counter has not been changed at all.

      1. Hello Dario, thanks for your report, if you can test it for a whole day, that will be better.

  28. I have started my sport activity to swimming. But after finishing it I cannot find any history of or report this activity in the F4 smartband nor in the application.

    1. Hello Dario, if you choose the swimming mode, you can check the data and after sports, connect to your phone, you can check the data in the Fundo app.

      1. There is no swimming mode in Fundo app. and i cannot see my swimming activity.

        1. Hello Dario, please go to the sport history, after synchronization, you can check it in the app.

  29. Sandro correa

    Recebi a smartband N01 F4 há três dias e estou decepcionado, pedômetro impreciso e o monitor de sono não funciona.

    1. Hello Andy, you can only use the stock clock face, go to the clock face interface, long press to use the selected clock face.

  30. Kalin Iliev

    Hi, Jon!
    I have updated to 0.2.6 and it was well for the first few days, but after that the band started to freeze the step counting, usually during the afternoon. It starts to count them only after band restart and with some delay too. This was noticed on two bands.
    Other problem from 0.2.3 and 0.2.6 is the not accurate data for altitude, UV and atmospheric pressure – I live in Sofia, the capital of Bulgaria, most of the city is located at about 500-550 m high, but the band continues to show closer to 400 m at that location, I have also checked it on two different locations in the country at 50m and at 150m but the band again was off with 200-300m difference from the real altitude.
    Also the weather data is quite random and does not represent the real temperature interval and weather conditions in the location
    It will be good in the next update this to be corrected the band to depict the name of the city, not just “Current city data”

      1. Kalin Iliev

        I think I have found the reason for the steps counting “freeze” in 0.2.6 – if you walk with a normal pace it is OK, but if you start to walk a bit faster, with a little bit bigger movement of the hand, the the band does not count for these movements. That was exactly the way I was walking at 5pm from work to pick up the kids from school and kindergarten – a little bit faster, with stronger hand movements.
        When I discovered this I have experimented on the same path but with normal walk pace and the counting of the steps was proper now.

        1. Hello Kalin, thanks for your report, we’ll test it and make an improvement.

  31. How do you change the time from 24hr to 12hr, degrees from C to F and KM to Miles?? Tried and can’t find a way to do this.

    1. Hello Justin, about the time zone, you just need to set your phone 12 hr format. But it is not possible to change the temperature unit. 😐

    2. after changing the time zone in my android mobile still not showing 12hr format on my band

    3. after changing the time zone in my android mobile still not showing 12hr format on my band

  32. I’m liking the F4. what does it mean when the F4 displays a checkmark? The clock face will go to sleep so the display is dark. Infrequently, the face will display a checkmark.

  33. Hello,

    Thank you for the best band in market. Please add BP and SPO2 also to the hourly HR monitor. Please allow data to be shared with Google fit

    1. Hello Nani, thanks for your suggestion. 🙂 But it is a pity that this app doesn’t support sharing data.

    1. If you try to use the heart rate monitor, it should light up, otherwises, the sensor is damaged.

  34. I work nights, I sleep from 5 or 6am to 1 or 2pm. Is there a way to adjust this?
    The watch has a setting to track cycling but I cant find it on the app.
    Is there a way to have the PB and blood Oxegen checked and tracked automatically like the HR?

  35. Hello Jon,

    help me please

    1. Altitude is wrong, usually is 376, good value is between 140-180
    2. Blood press usually is 124/81, good value is between 150/90
    3. Heart rate in resting is between 70-90, good value is 60 and in warm up is also between 70-90, good value is between 120-130

    firmware is 0.2.6, latest Fundo version and Andorid 7.1.1.

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