Large display, easy operation and 17 functions: GPS bike computer from the VDO R series
It shows all the essential data that beginners and advanced cyclists should keep an eye on. In addition to displaying speed, distance, and training time, the intelligent bike computer also guides you along your planned route with navigation information.
And that's not all! The VDO R4 GPS can be connected to compatible electric bikes, displaying all available data regarding battery, current power assist, lighting, and remaining distance supported by the electric motor. The high-contrast two-inch display with extra-large digits is very easy to read while riding. A colorful blue square in the upper right corner of the display enables a new way to present training data.
When used with the compatible SIGMA RIDE smartphone app, up to six individual training views can be set with just a few clicks.
The VDO R4 GPS is mounted on the handlebar using the included Overclamp Butler, which places the computer centrally above the stem, providing even better visibility. The Butler fits handlebars with a diameter of 31.8 to 35 mm, eliminating the need for cables and sensors.

Simple bike navigation
Connect and go! Pair your VDO R4 GPS with the SIGMA RIDE app (available for free in the App Store and Google Play).
Then, using the app, import the route from other portals or use the "Search and Go" function,
to go to a specific destination. After selecting and setting the route, the computer
detailed navigation instructions and arrows will be displayed in a colored square in the upper right corner of the display,
that will guide you straight to your destination while your smartphone stays in your pocket, saving battery life.
E-BIKE Ready
The VDO R4 GPS intelligent bike computer is suitable for e-bikes
and can be easily connected to many electric bikes.
VDO R4 GPS connects to a compatible e-bike system and shows on the display
Current support level, battery status, light and other data.
Smart notifications
When connected to a smartphone, smart notifications also connect cyclists with the outside world,
during a bike ride. The display shows information about incoming calls
and messages on your smartphone so you always stay in touch.
Convenient analysis of trip data in the RIDE App
With the free SIGMA RIDE app, training data is transmitted via BLE
from the GPS bike computer to the smartphone and stored there.
The most important data and statistics are displayed using clear,
colored data fields on the smartphone, making it easier to read and evaluate them quickly.
You can quickly share your results during training or on a trip with your friends.
On social networks like Strava, komoot and TrainingPeaks and others.

Key features:

General:
-Dimensions (W x H x D): 44.5 x 65.7 x 19.2 mm
-Weight: 39 g
-Function descriptions in 8 languages DE-EN-FR-IT-ES-NL-CZ-PL
-Water resistance IPX 7
-2-inch transflective display
-Display backlight
-Battery operation up to 18 hours
-Connections via BLE and ANT+
-Smart notifications
-Compatible with electric bikes
-Sensors: GPS, GLONASS, ambient light sensor
-Training
-Individually programmable sport profiles
-6 individually programmable training views
-Data analysis
-SIGMA RIDE App
-100 h memory-log
-.fit data format

Functions
-Speed functions
-Distance functions
-Time functions
-Electric bike functions
-Navigation functions

Package contents
-Bike computer, Overclamp Butler handlebar mount,
USB-C cable, mounting straps, quick start guide.