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  • Sigma ROX 4.0
  • Sigma ROX 4.0

Sigma ROX 4.0 tachometr

The perfect cycling computer for anyone starting out with GPS Full description
in stock
in stock
87,50 €
87,50 €
72,31 € without VAT
Specification Parameters Comments (0)

With its 30 functions and easy operation, the ROX 4.0 GPS cycling computer is a great helper for cyclists. The extra large display shows data such as altitude profile, speed, distance and training time. Navigation instructions and connection to e-bikes and external sensors are no problem for the ROX 4.0 cycling computer! Thanks to the free SIGMA RIDE application, current driving data can be monitored and analyzed at any time in the SIGMA RIDE application on a smartphone.

Features and functions

  • dimensions (wxdxh): 44.9x73.6x18.4mm
  • holder compatibility: GPS MountOverclamp Butler (optional accessory)
  • weight: 51 g
  • water resistance: IPX7
  • battery: 550 mAh (Li Ion), 3.7V
  • display size: 2.4 "
  • display size: 59x23mm
  • display colors: 2
  • display technology: transflective with Red Circle
  • display backlight
  • battery life: up to 25 hours
  • connectivity: ANT + and Bluetooth
  • Smart notifications
  • E-Bike Ready
  • display texts: CZ / EN / DE / FR / ES / NL / PL /IT


  • turn instructions
  • back to start " Arrow navigation "


  • GPS
  • barometric height measurement
  • ambient light sensor


  • pre-installed sports profiles
  • possibility of individually adjustable sports profile
  • individually adjustable training pages: up to 6 pages
  • individually adjustablenumber of training values per page: 3
  • templates for training screens: 1
  • automatic break

Data evaluation

  • sigma Data Center
  • Sigma Ride application
  • training memory: 100 hours
  • data format: .fit

Basic functions

  • speed
  • average speed
  • maximal speed
  • distance
  • trainingtime
  • calorie
  • clock

Height measurement

  • current height
  • slope (in%)
  • height profile
  • altitude meters of ascent

Pedaling frequency (optional accessory - cadence sensor must be purchased separately)

  • pedaling frequency
  • average pedaling frequency
  • maximum pedaling frequency

Heart rate function (optional accessory -it is necessary to buy a heart rate sensor)

  • current heart rate
  • average heart rate
  • maximum heart rate
  • maximum heart rate in%
  • intensity zones

E-bike function

  • range
  • E-bike battery status
  • your power versus engine power
  • degree of support
  • light

Navigation function

  • direction of travel
  • turn instructions
  • statusfunction
  • current temperature
  • device battery charge status
  • compass

Package contents

  • ROX 4.0
  • GPS computer holder
  • USB-C cable

Excellent display

Thanks to its dimensions and extra large numbers, the high-contrast transflective 2.4 " display is easy to read even while driving. The special Red Circle on the top right of the display is in colorhighlighted and offers cyclists an innovative and interesting display of training data. In combination with the free SIGMA RIDE smartphone application, individual display screens can be set with just a few clicks - up to six screens each with three adjustable values. The current speed is constantly shown on the display as the fourth value.

Red Circle

The innovative Red Circle on the display at the top right is on a colored background and offers an innovative and interesting display of trainingdata.

Lightning start

The ROX 4.0 cycling computer can be easily mounted directly on the handlebars / stem. When switched on, the ROX 4.0 searches for the cyclist's position in a few seconds using GPS and GLONASS. In combination with intuitive three-button operation, it is possible to start driving immediately.

Simple cyclonavigation

ROX 4.0 can be connected to the komoot application on a smartphone. The komoot application then sends turn instructions to ROX 4.0. This allows the smartphone to remain during the ridein pocket. Instructions for turning are displayed in the form of an arrow on the display or inside the so-called Red Circle. In addition, this colored backlit circle on the display counts down the distance to the next turn using a colored line. The line shortens the closer the cyclist is to the turn. Next to the Red Circle, the number of meters left for the next turn is displayed.

Everything under control

You can set the individual appearance of the display using the SIGMA RIDE application. There are up to six screens with three individuallyadjustable values on each of them. The current speed and time are constantly shown on the display.

Ready to start at any time

ROX 4.0 can be easily attached to the sleeve on the handlebars / stem. After switching on, the ROX searches for a position using GPS and GLONASS within a few seconds. Combined with intuitive three-button operation, you can start driving immediately. You can customize the appearance of the display using SIGMA RIDE.


Connect your ROX4.0 with komoot app and leave your smartphone in your pocket. You will receive instructions on how to turn to your ROX 4.0 via the komoot application. You can receive instructions in the form of an arrow on the screen or inside the Red Circle. The red backlit circle on the display counts down the distance to the next turn using a colored line. The line shortens the closer you are to the turn. In addition to the Red Circle, you will see how many meters are left for the next turn.

Ready for e-bike

ROX 4.0 is ready for an e-bike and can be usedeasy to connect to a variety of them. The GPS cycling computer connects to a compatible e-bike system and displays the current level of support, battery status, light and other data on the display or in the Red Circle.

Smart Notifications

Smart Notifications connect the cyclist with the outside world while riding. The display will show information about incoming calls and SMS messages from the smartphone.

Up-to date
Either LIVE: the data from the cycling computer is synchronized with the SIGMA applicationRIDE on your smartphone via Bluetooth in real time.

Convenient data analysis

Data from the cycling computer can be sent to a smartphone via Bluetooth and stored and evaluated in the SIGMA RIDE application. The most important data and statistics can be clearly arranged in colored data fields, quickly displayed on the screen and conveniently evaluated.

Barometric height measurement
The real attraction of the ROX 4.0 cycling computer is the integrated barometric sensor. ThanksBarometric measurement provides cyclists with reliable information on altitude, inclines and descents, enabling accurate route recording. An altitude graph can also be displayed on the ROX 4.0 cycling computer. The altitude at the beginning of the route can be calibrated automatically using GPS or manually.

External sensors (optional accessory - option to purchase a cadence and speed sensor)

If you want to get even more or more accurate data, you can connect to ROX 4.0 thanks to the ANT + and Bluetooth functionsalso external sensors such as heart rate sensor, speed sensor and cadence sensor.

Flexible mounting

The ROX 4.0 cycling computer comes with a classic GPS holder for handlebars / stem. The classic holder is attached to the handlebars or stem of any diameter with cable ties and the ROX 4.0 is snapped into place by turning it.

Product parameters

Přenos: GPS

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