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SIGMA is arguably the most popular manufacturer of bike computers, bike lights and heart rate monitors in Lithuania. Operating in Germany since 1982, the company uses advanced technologies in its products, so they not only look great and compact but are also highly functional. Sigma currently offers an extremely wide range of models and accessories.
Made for long cycling trips: the ROX 4.0 ENDURANCE gives you all the support you need while riding. An exceptionally long-lasting battery, smart navigation with a re-routing function and easy operation help you reach your destination safely, even if you decide to take a different route than originally planned. Data such as navigation instructions, altitude profiles, speed, distance and training time is reliably shown on the screen. Of course, the ROX 4.0 ENDURANCE can be paired with an e-bike and external sensors.
Product technical specifications
- IMPORTANT information before buying: Heart rate functions require sensors that are not included and must be purchased separately. CONNECTION / DISTANCE functions are based on the GPS signal and are as accurate as technology allows. Some areas may have poor GPS satellite coverage, so accuracy may vary.
- MAIN FUNCTIONS: Current / average / maximum speed, distance, training time (net), calories (only when used with an HR sensor), time.
- STATUS FUNCTIONS: Current temperature, battery charge status, compass.
- WORKOUTS: Preinstalled sport programs: 1, Individually adjustable number of training values on one page: 1 (more sport profiles can be saved in the app), Individually adjustable training pages: up to 6, Individually adjustable number of training values on one page: 3, training view templates, Auto pause.
- HEART RATE FUNCTIONS (external heart rate sensor required): Current / average / maximum heart rate, maximum heart rate %, intensity zones.
- CADENCE FUNCTIONS (external cadence sensor required): Current / average / maximum cadence.
- ALTITUDE MEASUREMENT: Current altitude, Gradient (%), Altitude graph, Altitude uphill.
- NAVIGATION FUNCTIONS: Turn instruction, Direction.
- E-BIKE FUNCTIONS (only on compatible e-bike systems*): Range, E-bike battery, Human and motor power, Assistance level, Lighting.
- DATA ANALYSIS: SIGMA DATA CENTER (download and system requirements), SIGMA RIDE app, Memory (internal): up to 100 h, Training, data format: .fit
- SENSORS: GPS, GLONASS, barometric altitude measurement, ambient light sensor.
- Technical information:
- Dimensions: approx. 44.9 x 73.6 x 18.4 mm (width x length x height)
- Mount compatibility: GPS mount Overclamp Butler GPS
- Water resistance rating: IPX7
- Battery: 550 mAh (lithium-ion), 3.7 V (rechargeable)
- Display size: 2.4"
- Resolution: 59 x 23 pixels (main display)
- Display colors: 2
- Display technology: transflective
- Backlight: yes
- Battery life: up to 41 h
- Connectivity: ANT+, BLE
- Smart notifications: yes
- Sensor technologies: Cadence, Heart rate, Speed
- E-bike ready: yes
- Weight: approx. 51 g
- Included: 1 ROX 4.0 Endurance Navigation bike computer, 1 GPS mount, 1 USB-C charging cable, 1 quick start guide.
- EXCELLENT BATTERY LIFE Designed to withstand the longest cycling adventures. The ROX 4.0 ENDURANCE has plenty of power. Thanks to more economical and efficient hardware, the battery lasts up to 41 h and gives you enough time to fully enjoy your cycling trip.
- SEARCH AND TRAVEL With navigation you can find the place you want and travel there. You can enter an address in the SIGMA RIDE smartphone app or tap a point on the map. Route options can be set individually (bike paths, off-road, paved roads and running / walking paths). A route created this way can be used directly on your ROX 4.0 ENDURANCE or saved in the RIDE app for later.
- RE-ROUTING AND TURN-BY-TURN INSTRUCTIONS During navigation the ROX 4.0 ENDURANCE displays the route and turn directions on the screen. A turn arrow and an audible signal warn you about the next turn. To make sure you don't miss a turn, a red circle with colored bars counts down the distance to the next turn. The closer the turn, the fewer bars remain. The ROX 4.0 ENDURANCE also shows the street name. If you spontaneously deviate from the suggested route, your ROX, interacting with the SIGMA RIDE app, instantly plans a new route to the destination with an accordingly updated altitude profile.
- THIRD-PARTY CONTENT With navigation you can follow a planned route precisely. To do this, create a route in the SIGMA DATA CENTER (download and system requirements) or a travel portal of your choice (komoot, Strava, etc.) and import it into the SIGMA RIDE app. Then you can start the route in the app and ride it immediately or save it and start it later on your bike computer. This way you can manage your route without a connection to your smartphone.
- GREAT SHAPE, BLACK COLOR Stylish, elegant and sporty. The black ROX 4.0 ENDURANCE stands out with its elegant design and fits any bike perfectly.
- READY TO GO ANYTIME! The ROX 4.0 ENDURANCE bike computer can be mounted directly on the handlebar in a few simple steps, without any cables or sensors. If you wish, you can pair the ROX 4.0 ENDURANCE with additional sensors to measure speed, heart rate and cadence. Once turned on, the ROX determines your location within seconds using GPS and GLONASS. Just use the three intuitive buttons and start riding right away. You can also individually customize the display view in the SIGMA RIDE app.
- LARGE DISPLAY: The high-contrast 2.4 inch display is easy to read even while riding, thanks to its size and extra-large digits.
- RED CIRCLE: The innovative red circle in the top right of the screen has a colored background and offers an innovative display of training data.
- EVERYTHING AT A GLANCE The SIGMA RIDE app lets you individually customize the display view. You can set up to six views, each with three values. The current speed and time are always shown on the screen.
- WHERE THE AIR IS CLEAR The main highlight of the ROX 4.0 ENDURANCE is the integrated air pressure sensor. It uses barometric readings to determine climbs and descents and provides reliable information about altitude above sea level, so you can accurately track your route. In addition, on the ROX 4.0 ENDURANCE you can choose a graphical altitude profile. The starting altitude at the beginning of the route is set automatically from GPS, or you can set the altitude manually.
- E-BIKE READY SYSTEM Traveling on an e-bike? No problem. The ROX 4.0 ENDURANCE is ready to ride on an e-bike and can be easily connected to many bikes. The GPS bike computer establishes a connection with a compatible e-bike system and displays the current assistance mode, battery status, lighting and other data on the screen.
- ACCURATE READINGS Do you need more data or even greater data accuracy? ANT+ and BLE let you connect external sensors to the ROX 4.0 ENDURANCE, such as speed, heart rate and cadence sensors. In our shop you can find accessory sets with various sensors for your ROX.
- UP TO DATE With the SIGMA RIDE app you can collect your training data, transfer it to your smartphone via BLE and quickly set up the desired views on your smartphone. You can read the most important data and statistics from your smartphone using the LIVE function of the SIGMA RIDE app and evaluate them conveniently.
- BE THERE LIVE Record your data with the bike computer and analyze it immediately using the LIVE view of the SIGMA RIDE app. While riding, you can very easily set individual display views.
- STAY CONNECTED Smart notifications let you stay in touch with the outside world even while riding. Notifications about incoming calls and messages to your smartphone are shown on the screen.
- PERFECT POSITION The Over Clamp Butler allows the ROX bike computer to be positioned ideally, even if you use a short stem. The computer can be placed directly above the handlebar, leaving more room on the handlebar and giving you a clear view of all data, no matter which bike you ride. The Butler fits 31.8 mm and 35 mm diameter handlebars.
- CLASSIC The classic SIGMA GPS handlebar mount can be attached without tools in a few seconds with two cable ties. This lets you choose whether to mount the device on the handlebar or the stem, and the device fits handlebars of all sizes.
