Bike computer SIGMA ROX 4.0 Endurance GPS black

SIGMA is a German manufacturer of bike computers, bike lights and heart rate monitors, operating since 1982. The company uses advanced technology in its products and offers a wide range of models and accessories.

The ROX 4.0 ENDURANCE is designed for long bike rides. It features a long-lasting battery, navigation with route recalculation and convenient operation. The screen displays navigation instructions, elevation profiles, speed, distance and training time. The computer can also connect to an e-bike and external sensors.

Technical specifications

• Important information: heart rate functions require sensors that are not included and must be purchased separately. Connectivity and distance functions are based on GPS signals, and their accuracy depends on the capabilities of the technology. GPS satellite coverage may be poor in some areas, so accuracy can vary.
• Main functions: current, average and maximum speed, distance, net training time, calories (only when used with an HF sensor), time.
• Status functions: current temperature, battery charge status, compass.
• Training: 1 pre-installed sport profile; individually adjustable number of training values per page – 1 (more sport profiles can be added in the app); up to 6 individually adjustable training pages; individually adjustable number of training values per page – 3; training view templates; auto pause.
• Heart rate functions (external heart rate sensor required): current, average and maximum heart rate, maximum heart rate percentage, intensity zones.
• Cadence functions (external cadence sensor required): current, average and maximum cadence.
• Altitude measurement: current altitude, gradient (%), elevation graph, ascent.
• Navigation functions: turn instructions, direction.
• E-bike functions (only with compatible e-bike systems): range, e-bike battery, rider and motor power, assistance level, lights.
• Data analysis: SIGMA DATA CENTER (download and system requirements), SIGMA RIDE app, internal memory up to 100 hours, training data format: .fit.
• Sensors: GPS, GLONASS, barometric altitude measurement, ambient light sensor.
• Dimensions: approximately 44.9 x 73.6 x 18.4 mm (width x length x height).
• Mount compatibility: Overclamp Butler GPS mount.
• Water resistance rating: IPX7.
• Battery: 550 mAh (lithium-ion), 3.7 V (rechargeable).
• Screen size: 2.4".
• Resolution: 59 x 23 pixels (main screen).
• Screen colours: 2.
• Screen technology: transflective.
• Backlight: yes.
• Battery life: up to 41 hours.
• Connectivity: ANT+, BLE.
• Smart notifications: yes.
• Sensor technologies: cadence, heart rate, speed.
• E-bike ready: yes.
• Weight: approximately 51 g.
• Included: 1 ROX 4.0 Endurance Navigation bike computer, 1 GPS mount, 1 USB-C charging cable, 1 quick start guide.

Features

Battery life. The ROX 4.0 ENDURANCE battery lasts up to 41 hours. Its efficient, high-performance hardware is designed for longer bike rides.

Find a route and navigate. Use navigation to find a destination and ride there. Enter an address in the SIGMA RIDE smartphone app or tap a point on the map. Route options can be customised for bike paths, off-road routes, paved roads, and running or walking paths. The route can be started directly on the ROX 4.0 ENDURANCE or saved in the RIDE app for later.

Route recalculation and turn-by-turn instructions. During navigation, the ROX 4.0 ENDURANCE screen displays the route and turn directions. An arrow and an audible signal alert you to the next turn. A red circle with coloured bars shows the distance to the next turn; the bars decrease as you get closer. The ROX 4.0 ENDURANCE also displays the street name. If you spontaneously leave the suggested route, the ROX interacts with the SIGMA RIDE app to immediately plan a new route to the destination and update the elevation profile.

Third-party routes. Create a route in SIGMA DATA CENTER or a travel platform of your choice, such as komoot or Strava, and import it into the SIGMA RIDE app. Start the route in the app or save it and launch it later on the bike computer. This lets you manage the route without a smartphone connection.

Mounting and use. The ROX 4.0 ENDURANCE can be mounted directly on the handlebar without wires or sensors. Speed, heart rate and cadence sensors can be connected if desired. When switched on, the device finds your location within seconds using GPS and GLONASS. The computer is operated with 3 buttons. You can choose the screen view in the SIGMA RIDE app.

Display and views. The high-contrast 2.4-inch screen, with its large digits, is easy to read while riding. The red circle in the upper-right corner of the screen has a coloured background and displays training data. Up to 6 views can be set in the SIGMA RIDE app, each with 3 values. Current speed and time are displayed continuously.

Altitude measurement. The integrated air pressure sensor uses barometric readings to determine ascents and descents and provide reliable information about altitude above sea level. A graphical elevation profile can also be selected. At the start of a route, the initial altitude is set automatically using GPS or can be entered manually.

E-bike functions. The ROX 4.0 ENDURANCE can connect to many compatible e-bike systems. The screen displays the current assistance mode, battery status, lights and other data.

External sensors. External speed, heart rate and cadence sensors can be connected to the ROX 4.0 ENDURANCE via ANT+ and BLE.

Data analysis and smart notifications. The SIGMA RIDE app can collect training data, transfer it to a smartphone via BLE and configure screen views. The LIVE view shows key data and statistics, and recorded data can be analysed. Custom screen views can be set while riding. Smart notifications for incoming calls and messages are displayed on the screen.

Mounts. The Over Clamp Butler lets you position the ROX bike computer above the handlebar, including when using a short stem. It fits handlebars with diameters of 31.8 mm and 35 mm. The classic SIGMA GPS handlebar mount can be installed without tools using 2 cable ties. The device can be mounted on the handlebar or stem; the mount fits handlebars of all sizes.