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- Ordered before 22:00, delivered tomorrow
- Free tracked delivery
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A large part of our assortment is in stock in our stores and ready to try, fit, and experience without an appointment.
Our full assortment is available online. You can order and pay for products online and have them delivered for free to one of our Superstores. This way, you can try everything out. Not satisfied? You can return it to the store free of charge and receive a refund.
Pros & Cons
Pros & Cons
- When connected with the Komoot app, the Sigma ROX 4.0 gives you turn-by-turn navigation during your bike ride.
- The Sigma ROX 4.0 can be connected to external cadence, heart rate or power meter sensors.
- The high-contrast 2.4 inch screen makes your data easy to read in all weather conditions.
- The ROX 4.0 is E-bike ready; when paired with a compatible system it can display your battery status, radius and more.
- With the addition of GPS, this bike computer allows you to save accurate workout data, and even gives you navigation options.
- For navigation, the Sigma ROX 4.0 must remain connected with your smartphone and the Komoot app.
- The ROX 4.0 does not offer map navigation, which more expensive bike navigation systems do.
Specifications
Specifications
|
Brand
|
Sigma |
| Yes | |
|
Routeplanning
|
Plan & upload via Smartphone |
|
'Back-to-Start' function
|
No |
| No | |
| 18 hours | |
|
Satellite Signal
|
GLONASS / GPS |
| Yes | |
|
Compatible with
|
Smartphone |
Simple navigation
The SIGMA ROX 4.0 is a really smart bike computer that even has basic navigation options. To do this, you'll need to connect it to your smartphone, and use the Komote app. On this app, you turn on the navigation, and it will then send the turn-by-turn directions to the ROX 4.0. For example, in the top right corner of the Red Circle you'll see a directional arrow and the distance in metres to the next turn.
External sensors
A big plus over the ROX 2.0 is that the 4.0 supports external sensors. You can connect external sensors to the SIGMA ROX 4.0 via Bluetooth or ANT+. For example, you can link a speed or cadence meter to your cycling computer for even more insight into your training. Of course, it is also possible to connect a heart rate monitor or even a power meter to this Sigma.
Flexible mounting
The standard handlebar mount that comes with the Sigma ROX can easily be attached to any handlebar or stem with the cable ties that come with it. For an even sturdier handlebar mount, choose the Sigma ROX 4.0 HR Top Mount Set, which comes with a premium handlebar mount and a heart rate monitor.
GPS and GLONASS enable your Sigma computer to pinpoint your location quickly and accurately.
E-bike ready
The ROX 4.0 connects to compatible E-bike systems and shows the current pedal assist level, battery status, light and other data on the display or in the Red Circle.
Smart notifications
If your SIGMA ROX is connected to a smartphone, you will receive notifications of incoming calls and messages.
Sport profiles
The Sigma ROX 4.0 has individually customisable sport profiles and 6 customisable training views.
Barometric altimeter
With this integrated air pressure sensor, your Sigma can accurately determine the current altitude. In combination with the GPS system, this provides a very accurate altitude measurement. This way, you can see exactly how many altitude metres you have travelled during or after your ride.
• Standard handlebar mount GPS
• Mounting materials
• USB-C cable
• Quick start guide
Reviews
Reviews
Photos from customers
Most recent reviews
5 / 5
Very easy to use and precise navigation.
Very nice GPS. 4 times cheaper comparing to garmin edge 2.0 or Wahoo, however can do almost the same. The most important thing is GPS which is very precise. If needed I will buy it again.
Pros & Cons
3 / 5
Beautiful device but not immediately user-friendly
Personally, I don't find it an easy and handy device. Nice though and does what it should do if you don't use gps and other things
Pros & Cons
3 / 5
Unable to commission
Unfortunately, I overlooked the fact that the computer, software programme and app are not compatible with ChromeOS (/Chromebook). Although available in the Google play store, the Sigma app does not appear to work properly with ChromeOS. On enquiry with Sigma, they confirmed this. With this, this bike computer loses part of its value for my intended purpose. So unfortunately it will be returned. Functioning itself therefore not assessed.
Pros & Cons
5 / 5
Top product
For the price, an excellent product. Not too much fuss but shows what you want to see.
Pros & Cons
5 / 5
Great bike computer with excellent value for money
Easy to install. Great readable display, always rechargeable. Navigation is limited but for that money it is a fine device and if you use the navigation in conjunction with a phone, it works fine. Sometimes it is difficult to click the computer wash. When using for the first time, try practising clicking on soft ground for a while if device slips then it falls softly. Click system with magnet would be more convenient. Once it is attached, it is firmly attached.
Pros & Cons
5
Very easy to use and precise navigation.
Very nice GPS. 4 times cheaper comparing to garmin edge 2.0 or Wahoo, however can do almost the same. The most important thing is GPS which is very precise. If needed I will buy it again.
-
Easy to use
-
Long life of the battery
-
Precise
-
Buttons from left and right sides, not very comfy
3
Beautiful device but not immediately user-friendly
Personally, I don't find it an easy and handy device. Nice though and does what it should do if you don't use gps and other things
-
Large screen
-
Many options
-
Navigation
-
Not user-friendly
-
Sometimes gps signal disappears
3
Unable to commission
Unfortunately, I overlooked the fact that the computer, software programme and app are not compatible with ChromeOS (/Chromebook). Although available in the Google play store, the Sigma app does not appear to work properly with ChromeOS. On enquiry with Sigma, they confirmed this. With this, this bike computer loses part of its value for my intended purpose. So unfortunately it will be returned. Functioning itself therefore not assessed.
-
Not compatible with ChromeOS
5
Great bike computer with excellent value for money
Easy to install. Great readable display, always rechargeable. Navigation is limited but for that money it is a fine device and if you use the navigation in conjunction with a phone, it works fine. Sometimes it is difficult to click the computer wash. When using for the first time, try practising clicking on soft ground for a while if device slips then it falls softly. Click system with magnet would be more convenient. Once it is attached, it is firmly attached.
-
Battery rechargeable so no battery needed
-
Easy to install
-
Good value for money
-
Gps signal sometimes fails
-
Navigation is limited and more supported.
Frequently bought together
Frequently bought together
Recommended by the product specialist
Recommended by the product specialist
Related products
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| Sigma ROX 4.0 | Beeline Velo 2 | Sigma ROX 4.0 HR Top Mount Set | Sigma ROX 4.0 Endurance Top Mount Set | |
| 11 reviews | 12 reviews | 2 reviews | 0 reviews | |
| GPS Sensor | Yes | Yes | Yes | Yes |
| Routeplanning | Plan & upload via Smartphone | Plan & upload via Smartphone | Plan & upload via Smartphone | Plan & upload via Smartphone |
| 'Back-to-Start' function | No | No | No | |
| Map View | No | No | No | No |
| Battery Life | 18 hours | 11 hours | 18 hours | 41 hours |
| Satellite Signal | GLONASS / GPS | GPS | GLONASS / GPS | GLONASS / GPS |
| From 69,95 | From 99,95 | 109,95 | 99,95 | |
| This product | View product | View product | View product |