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    Questions & Answers

    Is the ROX 12.0 SPORT compatible with the ROX 10.0 GPS and ROX GPS 11.0 sensors?

    The systems are based on the ANT + standard, therefore the sensors of the ROX 10.0 GPS and ROX GPS 11.0 can be connected to the ROX 12.0 SPORT.

    Are ANT + sensors from other manufacturers compatible with the ROX 12.0 SPORT?

    ANT + sensors from other manufacturers can be connected to the ROX 12.0.

    How do I update the firmware version of ROX 12.0 SPORT?

    To perform a firmware update, please proceed as follows:

    1. Start your ROX 12.0 SPORT

    2. Make sure that you are connected to a Wifi network

    3. Connect your ROX 12.0 SPORT to a power adapter using the micro USB cable

    4. Now wait a few minutes for the update to load in the background (an arrow appears next to the time display)

    5. Confirm the message "New software update available" with the green button "Now"

    6. Then wait until the installation has been completed and the ROX 12.0 SPORT is restarted

    How can I save a route as a track?

    To do this, select: “My Activities” -> “Select one” -> “Options (start as track)” -> “Options” -> “Save as Track”.

    Are sensors necessary to use the ROX 12.0 SPORT?

    The ROX12.0 SPORT calculates the current speed using GPS. Alternatively, an ANT+ speed transmitter can be used for this purpose. Moreover, it is possible to link an ANT+ heart rate transmitter and an ANT+ cadence transmitter.

    Which brackets can be used?

    In addition to SIGMA's own brackets, third-party brackets marked "K-EDGE" can also be used.

    Which SIGMA brackets are compatible with ROX 12.0 Sport?

    The brackets ROX 11.0 GPS, ROX 7.0 GPS and Pure GPS are compatible with the ROX12.0 SPORT.

    Which data are synchronised via the SIGMA CLOUD?

    The SIGMA CLOUD transfers your activities, sports profiles, tracks and device settings.

    Are the maps on the ROX 12.0 SPORT expandable?

    Maps of the following countries can be expanded: Africa, Asia, Europe, North America, Oceania and South America. External third-party maps are not expandable.

    Can the map orientation be also aligned in the direction of travel?

    Yes, please open the settings -> "Map" -> "Map Orientation"

    Can I use the services like GPSies on the way?

    Since the use of GPSies is only possible online, you need access to a guest Wi-Fi or a hotspot.

    How can I transfer tracks to the ROX12.0 SPORT?

    Drag the tracks you want to transfer from the removable medium to the Tracks folder. You can also transfer tracks via the SIGMA DATA CENTER to your ROX12.0 SPORT.

    Can I turn off the device while riding?

    The display can be switched off while driving. Navigation and turn-by-turn instructions are still active. A complete switch off is not possible.

    Can I use a Powerbank to charge the ROX 12.0 SPORT?

    Yes, but note that it has 5V and 1A.

    What does the message "Distance longer than 300 kilometres" mean?

    The distance to the destination is further away than 300 kilometres.

    Why are no watt values shown?

    To display watts values, a power meter is necessary.

    How long can the WiFi password be?

    The maximum length of your password may be 25 characters. The following special characters cannot be used: "\ |"

    How much does it cost to use the SIGMA LINK app and the SIGMA DATA CENTER software?

    The use of both programmes is free of charge.
    The SIGMA LINK app can be downloaded from the Google Play Store and the IOS App Store.
    The SIGMA DATA CENTER can also be downloaded free of charge at

    Can I use any microSD card with my ROX 12.0?

    In general, every microSD card is compatible with the ROX 12.0. Since there are great differences in quality, some mircoSD cards can cause problems. We have created a list of microSD cards that we have tested.

    IMPORTANT: To ensure the proper functioning of the microSD card, it must first be formatted as FAT32 (NTFS or exFAT is not recognised by the ROX12)!
    When using "slow" memory cards and memory cards larger than 32 GB, the starting time of the ROX 12.0 is extended!

    • AGFA microSDHC 4 GB
    • Kingston microSDHC 8 GB, Class 4
    • Lxsino 32GB 32G Ultra microSDHC, Class 10
    • Samsung EVO Plus microSDHC 32 GB, up to 95 MB/s, Class 10 U1 memory card
    • Samsung EVO SDHC 32 GB, Class 10 U1
    • SanDisk Ultra 16 GB microSDHC memory card, Class 10 U1, A1, FFP
    • SanDisk Ultra 32 GB microSDHC, Class 10 U1, A1
    • SanDisk Ultra 64 GB microSDHC, Class 10 U1, A1
    • Transcend TS16GUSDCU1, Class 10 Premium microSDHC 16 GB memory card UHS-I
    • Transcend, Class 10 Premium microSDHC 32 GB memory card UHS-I
    • TPSON 32 GB microSD card, microSDHC memory card, Class 10 UHS-I
    • Verbatim 8Gb Adapter, Class 10

    PS: We will test more cards and add them to the list!

    How do I connect/pair the ANT + transmitter with my device?

    All information about Ant + pairing can be found in our video tutorial:

    Which min./max. wheel circumference can be set as value?

    Wheel circumference min. 500 mm

    Wheel circumference max. 3999 mm

    With the ROX 12.0 GPS, even an input less than 500 mm can be adjusted.

    What is the maximum speed that the bike computer can display?

    The speed is displayed up to 199.8 km/h.

    What warranty entitlement do I have?

    Warranty claims can be made in the event of material and workmanship errors. Excluded from the warranty are batteries, elastic straps, textile chest straps, e.g. Comfortex, wear and tear parts and wear due to commercial use or accidents. If no speed is displayed, this can be due to the transmitter or the computer.

    How can I obtain a replacement?

    Accessories are available in the Sigma Webshop

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    List of changes – Version ()

    The new features and corrections in detail:

    Fix connection issue with Heart Rate Sensors

    At the end of the year, the final spurt in training will be kicked off with new features and improvements. The new features and corrections in detail:

    GPSies access has been removed
    With the acquisition of GPSies by AllTrails, the GPSies service will gradually be discontinued or taken over by AllTrails. As a result, the GPSies access to the ROX 12.0 vanishes. Find out more about it in the blog.
    Added ROTOR INspider support
    The latest ROTOR power meter is also fully supported by the ROX 12.0. This allows the users of the ROTOR INspider to access and display the OCA and OCP values.
    Display of the gradients
    The calculation of the gradients has been improved.
    WiFi passwords > 25 characters
    WiFi passwords longer than 25 characters are supported. From now on a password length of up to 63 characters is possible.
    Pauses in the DATA CENTER
    Pauses were not displayed correctly in the DATA CENTER. The bug has been fixed, now all pauses are set correctly.
    Stability of ANT+ sensors
    The update has optimized the stability of the sensor data.
    Fast loading has been added
    The ROX 12.0 SPORT can now be charged with up to 1.5A. Depending on the power supply used, the charging time is significantly reduced.
    Training start time corrected
    In some cases, summer time was not recognized correctly, which distorted the training start time. This error has been fixed with the update.
    Improvement in system stability
    Overall improvement in system stability.

    Summer is cycling time and hence we have a new update ready for you. In the following, you can see all the new features and corrections in more detail:

    Contrast of the map has been improved
    In order to make the map contents easier to recognize in future, we have revised the contrast of the maps. The details are now seen more clearly. Also, the route to be traveled is now displayed in blue instead of light green, so that the route is now distinguished better from the other map contents.
    Turn-by-turn instructions for Draw my Route
    In order to make navigation with Draw my Route more clear in the future, we have also added turn-by-turn instructions.
    Display of support levels for Shimano STEPS
    With the support levels, the ROX 12.0 can also display another e-bike value for Shimano STEPS.
    Troubleshooting Garmin Base Camp Tracks
    Garmin Base Camp offers the possibility to save multiple tracks in a .gpx file. However, these tracks led ROX 12.0 to become unbootable. We have fixed this error with this update, so that all tracks are displayed correctly on the ROX 12.0.
    All changes at a glance
    • Contrast of the map has been improved
    • Turn-by-turn instructions for Draw my Route
    • Display of support levels for Shimano STEPS
    • Troubleshooting Garmin Base Camp tracks
    • Troubleshooting scheduled Strava routes in the Strava app
    • Troubleshooting ROTOR OCP saving value

    Just in time for spring, there is a new update that focuses on e-bikes. Following are the changes, features and improvements in more detail:

    E-bike compatibility with SHIMANO STEPS and LEV (ANT+ profile)
    The new update enables you to connect the ROX 12.0 to an e-bike that has a SHIMANO STEPS drive (E5000, E6100, E7000 and E8000* only with corresponding wireless unit) or supports the ANT+ LEV profile You can now set your ROX to display the range, the level of support and/or the status of the battery. Plus, important information or error messages from the compatible e-bike are displayed. Throughout your ride you can keep an eye on all the information relating to the e-bike.
    ROTOR INPower support has been added
    We have expanded our compatibility with ROTOR and now fully support INPower. ROTOR INPower users can now set their system to display the OCA and OCP values (incl. graphic) in the same way as ROTOR 2INPower users.
    MicroSD card read error has been rectified
    We have resolved the error that used to occur when the MicroSD card was read. Now you can use the MicroSD card as a memory card. The following data can be stored on the MicroSD card:
    • Activities
    • Workouts
    • Custom sport profiles
    • Tracks

    IMPORTANT: The MicroSD card must be formatted as FAT32! Following is a list of MicroSD cards that we have tested.
    Compass function has been improved
    Based on user feedback regarding incorrect map alignment as slow speeds, we have corrected the compass functionality to resolve the error.
    All changes at a glance
    • Integration of e-bike compatibility with SHIMANO STEPS and LEV (ANT+ profile)
    • Compatibility with ROTOR INPower
    • MicroSD card reading error has been rectified
    • Compass function has been improved
    • Error in STRAVA Live Segments synchronization has been rectified
    • Stability has been improved

    Following are a few changes and new functions for the ROX 12.0 that will take affect with the latest firmware update.

    Firmware update
    You can now manually check if an update is available. Just go to "Settings > Firmware Update". WiFi connection is required for this.
    Update of Strava live segments
    We are working very closely with Strava to ensure that you can fully concentrate on the segment when you use the ROX 12.0 with Strava Live Segments.

    IMPORTANT: To ensure that you will be able to continue using Strava live segments in the new year, you MUST do this update. Access with the old software version will cease at the end of this year. After the New Year, Strava users will be able to access Strava live segments ONLY with the new version!

    What has changed?
    You will now be able to make the following comparisons:
    • KOM/QOM
    • Personal record
    • Athlete who is one place ahead of me
    • Athlete who is one place behind me
    • My last attempt
    • Best time from the last five attempts
    Note: There are segments that are classified as "dangerous". They are not available as Strava live segments!
    New zoom function for the altitude profile
    The zoom function works in exactly the same way as on the map. While you are in Training mode, simply tap on the altitude profile and select the desired zoom level. This level is maintained until you change it again.
    Dropbox integration
    SIGMA has integrated Dropbox functionality to the ROX 12. Once you have logged into Dropbox, training sessions can easily be uploaded in .fit file format.
    All changes at a glance
    • Strava live segments update
    • Dropbox integration
    • Training view is given a new improved font for numbers
    • Zoom function for altitude profile
    • Power meter calibration – optimized
    • Improvement to stability

    We have been asked to make the change log a bit more detailed. To that end, we will gladly provide more information about the changes in each respective update.

    Firmware update
    One possibility is to simply connect the ROX 12.0 to a power source. The ROX 12.0 must be activated. Then it checks if an update is available. When the update has been downloaded, an info screen will appear to alert you to the update.
    Following are the streamlined instructions for updating the firmware:
    1. WiFi must be set up and logged in
    2. Connect ROX 12.0 to power source
    3. After approx. 30 seconds, a download symbol (arrow down) is displayed at the top right near the battery indicator - download has started
    4. The download takes a few minutes depending on the Internet connection
    5. The update screen will now be displayed and the update can be performed
    In the new version, the update process has been simplified. You can now manually check if an update is available. Just go to "Settings > Firmware Update". WiFi connection is required for this.
    Turn-by-turn instructions
    The turn-by-turn instructions have been completely revised. In the previous version, these were added "mathematically". While good in the field test there were weaknesses in practice. Although the instructions were mostly good, there were some that were just wrong.

    What has been changed?
    We now analyze the complete track, create a new track and generate the turn-by-turn instructions. This process checks the entire course of the track and also every crossing. This produces significantly better turn-by-turn instructions.
    On Track / Off Track
    We have now added the ON/OFF track message. The map will display an exclamation point that you have left the track and the ROX 12 will beep (optional).
    The Komoot integration has been revised. Now downloaded tracks can be accessed offline. There is no WiFi needed along the way. Activities can be automatically uploaded to Komoot.
    We have added authentication with password. Thus, the private tracks are also available.
    There were individual users who had problems logging into the SIGMA CLOUD. This error has been fixed.
    All changes at a glance
    • Compatibility with ANT+ remote controls has been added
    • Remote control of the Shimano Di2 is now supported
    • Scaling has been added to the map
    • Zero position calibration of a power meter has been added to the short menu
    • ON/OFF track information has been added
    • Training page indication has been added
    • Presentation of the altitude profile has been improved
    • Turn-by-turn instructions have been improved
    • Komoot integration has been revised
    • GPSies – Authentication has been added
    • Errors in .fit have been fixed (lap times errors)
    • Strava Live segments – You can now sync 100 instead of just 30 segments
    • Firmware update process has been optimized
    • Error with .GPX - Tracks with overlong descriptions have been fixed
    • Error "Power intensity zones graphic chart disappears" has been fixed
    • SIGMA CLOUD LOGIN error has been fixed


    Our service team is also available by phone. Contact us and talk to one of our service advisers in person.
    We are available by phone Monday through Thursday from 8:00 to 16:00 and Fridays from 8:00 to 14:00. We look forward to your call at the number +49 6321 9120 118
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