30+ functions Large easy-to-read high-contrast 2.4-inch diagonal display Simple operation Customisable display views with the free SIGMA RIDE app Connect using ANT+ or BLE to external sensors such as speed heart and cadence sensors Smart notifications - incoming calls and messages - appear on the display Classic SIGMA GPS handlebar bracket fits handlebars of all sizes E-bike ready The ROX 4.0 has over 30 functions offering all the data you need such as altitude profile speed distance and training time. The outstanding 2.4 inch display is very easy to read even when the bike is moving. A genuine highlight of ROX 4.0 is the integrated air pressure sensor that uses barometric readings to determine inclines and declines. Providing you with reliable information about altitude and generating a precise record of your route. ROX 4.0 shows navigation and can automatically connect with your e-bike and external sensors for measuring speed heart rate and cadence. Large Display:The 2.4-inch-diagonal high-contrast display and extra-large numbers make it easy to read even during a ride. Red Circle:The innovative Red Circle on the upper right corner of the display is highlighted in various colours and offers innovative interesting display of training data. Everything At a Glance:The SIGMA RIDE app allows you to set your display view individually. You can set up to six views each with three values. Current speed and time are shown continuously on the display. Ready to go Any Time:The ROX 4.0 bike computer can be positioned directly on the handlebars in a few easy steps ?entirely without cables or sensors. If you want you can connect your Rox 4.0 to additionalsensors for measuring speed heart rate and cadence. Your ROX uses GPS and GLONASS to determine your position within a few seconds of being switched on. The user-friendly operation with three buttons enables you to start a bike tour right away. You can use the SIGMA RIDE app to set your individual display views. Perfectly Positioned:The Overclamp Butler enables you to perfectly align your ROX 4.0 bike computer even if you have a short stem. The computer head can thus be positioned centrally above the stem at the level of the handlebars. This ensures that there is space and order on your handlebars and that you have a good overview of all values even if you?re not riding a mountain bike. The Butler fits on handlebars of 31.8 and 35 mm diameters. The Classic:The classical SIGMA GPS handlebar bracket can be fixed in place without tools in a few seconds with two cable ties. This gives you a choice between installation on your handlebars or on the stem and the device fits handlebars of all sizes. Up Where The Air Is Clear:A true highlight of the ROX 4.0 is the integrated air pressure sensor. It uses barometric readings to determine inclines and declines and provide you with reliable information about altitude allowing a precise recording of your track. You can also call up a graphical altitude profile on the ROX 4.0. The home altitude at the beginning of the tour is determined automatically from GPS or you can set altitude manually. Pioneer:Connect your ROX 4.0 with your komoot app and leave your smart phone in your pocket. Receive turn-by-turn navigation from the komoot app on your ROX 4.0. It can be displayed either as an arrow on the display or inside the Red Circle.