Sigma Sport ROX 12.0 Sport Set - GPS Cycle Computer incl. R2 DUO Combo and R1 DUO Comfortex+ - grey

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  • Description
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Description of Sigma Sport ROX 12.0 Sport Set - GPS Cycle Computer incl. R2 DUO Combo and R1 DUO Comfortex+ - grey


Cyclingworld Award - Winner in "Best Technology" 2020
Eurobike Award - Winner 2018

The GPS bike computer combines innovative map navigation and a professional training system with a well structured operating concept and exceptionally powerful hardware. Large buttons and graphics on the touch display intuitively guide you through the menu. Like your smart phone, you can return to the start menu at any time by pressing the home button. The side and bottom buttons can be used to operate the ROX 12 when wearing gloves. A WiFi interface, the detailed map with quick and easy routing and numerous training functions make the ROX 12.0 perfect for training and touring.


SIGMA ROX 12.0 Sport | GCN Tech's First Look

The Sigma Sport ROX 12.0 Sport Set including R1 DUO Comfortex+ Ant+/Bluetooth Chest Belt and R2 DUO Combo Transmitter for Speed and Cadence - Ant+/Bluetooth!


Highlights of the Sigma Sport ROX 12.0 Sport

Innovative map navigation
There are various flexible routing options on the ROX 12, i.e. entering an address or coordinates, looking for a "Point of Interest" or simply marking a point on the map. You can also add intermediate destinations to an existing route or skip points during a ride.
A unique navigation feature is the "Draw my Route" function. If a line is drawn on the map by hand, the ROX 12.0 uses it to create a route. This can be saved as a track or started immediately. There are three options when a route is created. You may choose between the easiest, the recommended and the shortest route. Additionally, surface type preferences (bike paths, roads, unpaved trails) can be defined in the advanced section of the Sport Profile.
Maps of 20 European countries come preinstalled on the ROX 12.0 and additional maps can be downloaded for free.

Professional training system
The ROX 12.0 offers flexible training views and complete customization on up to six screens. Page layouts are suggested based on the number of values selected for each page (1 - 10). A total of 30 training views are available.
The computer can be customized based on each rider's unique needs. The central feature is the Sport Profile, which can be used to specify the training views, the sensors and the preferred routing options for each bike.
The ROX 12.0 provides the TSS®, NP® and IF®, in addition to the OCA and OCP values of a Rotor 2INpower. Plus, the ROX 12.0 SPORT will pair to transmitters via ANT+ and BLE therefore offering a huge variety of functions and information.

WiFi connectivity
With built in WiFi, rides can be loaded straight on to the ROX 12.0 from Strava, Komoot and GPSies. Routes from the DATA CENTER or the SIGMA LINK app can also be transferred by WiFi via the SIGMA CLOUD. As soon as you log into the training portals, the data is automatically transmitted by WiFi. In addition, the training data is immediately available in the SIGMA CLOUD and can be synchronized with the SIGMA LINK app and the DATA CENTER. The ROX 12.0 will also connect to your mobile hotspot if a WiFi network isn't readily available. But the ROX 12.0 does not communicate with the smartphone via Bluetooth.

E-Bike ready
With the firmware update 1.19.150, e-bike riders can now use the ROX 12.0 SPORT to display specific e-bike values ​​such as battery life, range and assistance level in addition to the usual navigation and training data. Via the ANT+ interface, the GPS bike computer connects to the Shimano STEPS E5000, E6100 and E7000 drive systems as well as ANT + LEV. E-mountain bikers benefit from the new features of the ROX 12.0 as well as e-leisure and touring cyclists on bike tours and bikepacking tours.

Powerful hardware
The bright display of the ROX 12.0 is perfectly designed for outdoor use. Whether you are riding in brilliant sunshine or on a cloudy day with low light, the screen is always clearly legible. The touch screen can also be used reliably in all weather conditions. For example, it can detect raindrops and will continue to function properly.

Personalized design
The ROX 12.0 can be customized with optional colored cases (optionally available).

Features of the Sigma Sport ROX 12.0 Sport

  • Diverse routing options
  • Detailed OSM map material
  • Preloaded European maps
  • Free map downloads for any country in the world
  • 30 training views
  • Strava Live Segments
  • Creation of workouts on the unit
  • Enhanced power functions (TSS®, NP®, IF®)
  • Compatible with Di2 & eTap
  • Compatible with the Shimano STEPS E5000, E6100 and E7000 e-bike drive systems as well as with ANT+ LEV
  • Compatible with Rotor 2INpower (OCA, OCP)
  • WiFi interface for fast data transfer
  • Synchronization of the training data with the DATA CENTER and SIGMA LINK app via SIGMA CLOUD
  • Direct connection to Strava, Komoot, GPSies & TrainingPeaks
  • Transreflective 3" display
  • Fast user interface
  • 8 GB internal memory - extendable with 128 GB MicroSD card
  • Battery time of up to 16 hours
  • Dimensions: 59 x 115 x 17 mm


SIGMA SPORT continuously improves the quality and performance of the products through regular software updates. To check whether you are using the latest update on your ROX 12, go to SIGMA SPOR ROX 12 Software Update


Sigma Sport R1 DUO Comfortex+ Ant+/Bluetooth Chest Belt

The R1 DUO heart rate transmitter uses two different transmission technologies. The data is sent to the ROX GPS 11.0 and 12.0 via ANT+. It can also be shared with a smartphone via Bluetooth Smart. All sport apps that support Bluetooth® SMART READY technology and use heart rate data can display the R1 DUO's values.


  • iOS devices: iPhone (4s and above), iPod touch (5th gen. and above), iPad (3rd gen. and above), iPad Mini, iPod Nano (7th gen. and above)
  • Android devices: all devices with Bluetooth® SMART READY technology and Android OS 4.3

Transmits the following up-to-date values to devices with Bluetooth® SMART READY technology:

  • ECG-accurate heart rate
  • RR intervals in milliseconds for determining
  • the heart rate variability
  • Battery status

- Battery life of over 1.3 years
- Waterproof to 3 ATM

COMFORTEX+ textile chest belt

  • ultra-light, comfortable, well-fitting textile chest belt
  • laminated electrodes for better skin contact because of a greater moisture
  • washable on a hand wash cycle and in a wash bag at up to 30° C


Sigma Sport R2 DUO Combo Transmitter for Speed and Cadence - Ant+/Bluetooth

The R2 DUO Combo transmitter for speed and cadence transfers the data to both ANT+ and Bluetooth-Smart-compatible devices. This makes it possible to simultaneously send all important data to the ROX GPS 11.0, 12.0 and a smartphone using any compatible app.


  • iOS devices: iPhone (4s and above), iPod touch (5th gen. and above), iPad (3rd gen. and above), iPad Mini, iPod Nano (7th gen. and above)
  • Android devices: all devices with Bluetooth® SMART READY technology and Android OS 4.3


GCN Tech Unboxing: New SIGMA Rox 12.0 Sport


Auxiliary equipment (optional):

ROX 12.0 Sport Shell in various colors


Included in delivery:

ROX 12.0 Sport bike computer
handlebar mount
GPS butler
Micro USB cable
R1 DUO Comfortex+ Ant+/Bluetooth Chest Belt
R2 DUO Combo Transmitter for Speed and Cadence - Ant+/Bluetooth
mounting material
quick start instructions


Kind of functions:

innovative map navigation
professional training system
enhanced power functions (TSS®, NP®, IF®)
Strava Live Segments



transreflective 3" display
preloaded European maps
Compatible with Di2, eTap and Rotor 2INpower (OCA, OCP)
WiFi interface
ANT+ and BLE connectivity to sensors

  • Description
  • Fact Sheet
  • Ratings (15)

Fact Sheet of Sigma Sport ROX 12.0 Sport Set - GPS Cycle Computer incl. R2 DUO Combo and R1 DUO Comfortex+ - grey

Product Name: Sigma Sport ROX 12.0 Sport Set - GPS Cycle Computer incl. R2 DUO Combo and R1 DUO Comfortex+ - grey
Manufacturer: Sigma Sport
Item Code: SIG381044
activity: Bike, Outdoor
transmission standard: ANT+, Bluetooth, WiFi, Wired
device functions: Altitude, Force-Efficiency-Kit, PC-/App-Analysis, GPS, Navigation, HRM included, HRM optional, Cadence (optional or included), Plan Training on Device, Calorie Consumption, Gear Position
device version: Bike Computer
compass type: electronical
display: Colored, with Map Display
Model year: 2020
Color: Grey
weight: 125g
manufacturer item code: 01022
Manufacturer page:
  • Description
  • Fact Sheet
  • Ratings (15)


(15 Ratings)
Rate this product
Customer Reviews
Gutes Set
Volle Kaufempfehlung für das Set. Einfache Handhabung, Koppeln mit Brustgurt einwandfrei. Navigiert sehr gut, Akku in Ordnung.
Bin zufrieden
Bin seit fast einem Jahr mit dem Rox jetzt unterwegs mit Biobike und e-Bike und sehr zufrieden.
Die Kartennavigation finde ich sehr gelungen. Am Touchscreen kann man sich sehr einfach und schnell eine Tour auswählen und auch das Routing läuft recht schnell. Auf Fahrten finden wir in unserer Gegend aber auch im Ausland im Urlaub immer wieder interessante Strecken. Die Streckenvorschläge und Wegeauswahl sind gut, Abbiegehinweise sind treffend.
Der Brustgurt ist angenehm zu tragen, die Sensoren werden gut erkannt.
Tolles Gerät im Set
Bin mit dem Rox 12 Set sehr zufrieden, alles funktioniert gut so wie es sein soll. Gut finde ich dass die Karten und Kartenupdates für alle Länder kostenlos dabei sind genauso wie regelmäßige Software-Updates - teilweise sogar mit neuen Funktionen.
Hervorragendes Rad-Navi
Ich habe das Navi seit einem halben Jahr im Einsatz, ich bin ein klassischer „Sonntagsfahrer“ und habe es Gekauft weil ich mich auf meinen Radtouren navigieren lassen wollte, die Navigation funktioniert sehr gut, Routenvorschläge werden im Vergleich zu meinen Auto-Navi schneller geladen. Habe schon viele schöne Touren und Wege mit dem Gerät entdeckt. Die Karte ist gut lesbar und der Akku hält einen längere Tages-Ausflugsradtour gut durch.
3 month of use - Very bad
1. Very weak duo speed&cadence sensor attachment - Was broken after 2 weeks of use.
2. Incorrect sensors work. Losts cadence sensor signal after stop and break in case when user with heart sensor going away from cycle (in cafe for example). Needs screen off/on for correct work.
3. Rain detector screen lock doesn't work. Needs lock manual for prevent touchscreen reaction from rain drops.
4. DOESN'T WORK AFTER SOFTWARE UPDATE. Was updated for last software version 1.19.270 (40552). Bootloop error appear. Now it's plastic brick for more than 275 euro.

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