new Sigmax Rox 11.1 Evo Bike Computer


sigma rox 11.1 display

Sigma Rox 11.1 Evo Bikenav

Sigma has a good pedigree of delivering highly featured bike computers and has a decent customer base in mainland Europe. I looked in detail at the larger Rox 12 model back in 2019 and it had a great feature set in place then but never seemed to do as well with customers as it deserved to.

Their latest Rox 11.1 Evo is launching later this year and today we have a sneak preview of what will be coming.

What is Sigma Rox 11.1 Evo?

It’s a performance bikenav that leverages maps and other connected features from your smartphone.

Unlike Garmin, the design ethos of Sigma is similar to that of Wahoo Fitness with the Bolt in the sense that some of the bike computer configurations are performed on the smartphone app. This makes for a superior rider experience most of the time as the bike computer’s menus are more streamlined and relevant. However, if you want to change some screen settings, you need to have your smartphone app with you.

With a normal, smaller, format Rox 11.1 targets those of us who want performance features yet there is also a wide-ranging ecosystem for power meter support, Di2 support, E-bike support, crash detection, structured workouts and coloured data fields to name a few.

Features Overview

The features and specs are detailed further below and they are impressive. However, they are not all-encompassing and, for example, a performance cyclist might want Last Lap-NP. I usually look for the presence or absence of that metric and if it’s missing then there’s usually other peripheral stuff missing too.

That said, how many people really want Last Lap NP? Probably not too many (I do) but Sigma compensates for this with other advanced features like colour coded data fields which even Wahoo only recently introduced.

One of my criticisms of the earlier Rox 12 was that indoor trainer support over FE-C was not supported. Well…it is now.

Another criticism of the Rox 12 was that there was no smartphone app…clearly, there is now and the app looks to have great features including incident detection.

The Rox 11.1 seems to have skipped on the Strava Live Segment support that was offered on the 12.0 which is a shame as that was a nice implementation of Strava’s headline subscription feature. Similarly, Garmin Varia Radar support is also not offered.


There are no onboard maps.

It looks like offline breadcrumb routes are supported with some interesting data fields that can be stretched and squeezed to fit on screen just how you want them to be.

For those who will miss the ability to re-route there is also a live link-up to routing capabilities on the app. So, for example, you can be directed by the Rox’s link up to Komoot on your smartphone.

First Thoughts & Take Out

Sigma might be on to something here if they get the pricing right.

The Rox 12 from 2 years ago IS a good device. It had a few techy teething troubles but was nevertheless impressive. I suspect one reason it didn’t do better was its unusual screen shape and aesthetics. Well, the Rox 11.1 Evo is a modern-looking device without being too unusual…it looks OK albeit very slightly quirky!

The feature set looks like it will handle the needs of 99% of cyclists. If the Rox Evo works smoothly and mostly bug-free, then Sigma could be on to a winner.

I’ve not looked at what has happened with Sigma’s data platform over the last year or so. My thoughts before were that it was a bit clunky. Perhaps if there are better integrations to 3rd party platforms along a similar vein to Wahoo then those reservations would diminish.

I’m not sure I’ll review this when it comes out later in the year but let’s see what happens.


Sigma Rox 11.1 Evo – Detailed Specifications

Dimension (W x L x H) 46,8 x 66,1 x 20,8 mm
Mount compatibility GPS Mount Overclamp Butler Short Butler
Weight 55 g
Water resistance IP67
Battery 1000 mAh (Li Ion), 3.7 V
Touchscreen No
Display size 1.77″
Resolution (pixel) 128 x 160
Color display / Number of colors 262 k colors
Display technology Transmissive
Backlight Yes
Typical battery life 18 Hours
Connectivity ANT+ BLE
Smart notifications Yes
Sensor technology Cadence Electronic shifting Heart rate Power meter Smart Trainer (FE-C)
E-Bike Ready Yes
Map navigation No
Track navigation Yes
Turning guidance Yes
Number of tracks on the device Up to 36
Back to starting point Same track back
Barometric altitude measurement Yes
Ambient light sensor Yes
Acceleration sensor Yes
Preinstalled sport profiles 4
Individually adjustable sport profiles Up to 20
Individually adjustable training pages Up to 6
Individually adjustable number of training values per page Up to 6
Templates for training views Yes
Colors to highlight the training values Yes
Workouts Yes
Number of workouts on device Up to 36
Strava Live Segments No
Crash Alert Yes
Alarms Drinks Food Individual
Auto pause Yes
Lap function Automatic (time / distance) Manual
Target zone training Cadence Heart rate Power Speed
Data analysis
Memory Up to 100 h training
File format .fit
Basic functions
Speed Yes
Average speed Yes
Maximum speed Yes
Distance Yes
Training time (net) Yes
Training time (gross) Yes
Speed graph Yes
SIGMA Performance Index Yes
Calories Yes
Date Yes
Clock (12/24 hrs) Yes
Altitude measurement
Current altitude Yes
Gradient (in %) Yes
Rise rate Yes
Altitude graph Yes
Altitude uphill Yes
Maximum altitude Yes
Average rise rate Yes
Maximum rise rate Yes
Average incline uphill Yes
Maximum incline uphill Yes
Altitude downhill Yes
Average rate of descent Yes
Maximum rate of descent Yes
Average gradient Yes
Maximum gradient Yes
Number of ascents Yes
Number of descents Yes
Minimum height Yes
Cadence functions
Cadence Yes
Average cadence Yes
Maximum cadence Yes
Cadence graph Yes
Heart rate functions
Current heart rate Yes
Average heart rate Yes
Maximum heart rate Yes
Minimum heart rate Yes
Maximum heart rate (in % ) Yes
Average % max. heart rate Yes
Target zone Yes
Intensity zones Yes
Heart rate graph Yes
Power functions
Balance Yes
Balance 10 sec – average Yes
Balance 3 Sec – average Yes
Balance 30 Sec – average Yes
Balance average Yes
Pedal smoothness Yes
Current power Yes
Power – %FTP Yes
Average power Yes
Power 3 sec – average Yes
Power 10 sec – average Yes
Power 30 sec – average Yes
Power – intensity factor Yes
Power – Max Yes
Power in Kilojoule (KJ) Yes
Normalized power Yes
Training Stress Score Yes
Power in Watt / KG Yes
Power zones Yes
Torque Effectiveness (–% / –%) Yes
Power graph Yes
E-Bike functions
Range Yes
E-bike battery Yes
Support (watt) Yes
Human Power vs. Motor Power Yes
Support level Yes
Gear indicator Yes
Light Yes
E-bike total distance Yes
E-bike total time Yes
Indoor trainer functions
Trainer resistance Yes
Trainer mode Yes
Trainer target power Yes
Automatic lap functions (time or distance based)
Lap Number – AutoLap Yes
Lap time – AutoLap Yes
Distance – AutoLap Yes
Avg speed – AutoLap Yes
Maximum speed – AutoLap Yes
Calories – AutoLap Yes
Average altitude – AutoLap Yes
Maximum altitude – AutoLap Yes
Altitude uphill – AutoLap Yes
Altitude downhill – AutoLap Yes
Average incline uphill – AutoLap Yes
Average slope downhill – AutoLap Yes
Average rate of ascent – AutoLap Yes
Average rate of descent – AutoLap Yes
Average balance – AutoLap Yes
Average power – AutoLap Yes
Maximum power – AutoLap Yes
Normalized power – AutoLap Yes
Average cadence – AutoLap Yes
Maximum cadence – AutoLap Yes
Average heart rate – AutoLap Yes
Maximum heart rate – AutoLap Yes
Pedalling time – AutoLap Yes
Pedalling index – AutoLap Yes
Auto lap liste Yes
Manual lap functions
Lap Number – Lap Yes
Lap time – Lap Yes
Distance – Lap Yes
Avg speed – Lap Yes
Maximum speed – Lap Yes
Calories – Lap Yes
Average altitude – Lap Yes
Maximum altitude – Lap Yes
Altitude uphill – Lap Yes
Altitude downhill – Lap Yes
Average incline uphill – Lap Yes
Average slope downhill – Lap Yes
Average rate of ascent – Lap Yes
Average rate of descent – Lap Yes
Average balance – Lap Yes
Average power – Lap Yes
Maximum power – Lap Yes
Normalized power – Lap Yes
Average cadence – Lap Yes
Maximum cadence – Lap Yes
Average heart rate – Lap Yes
Maximum heart rate – Lap Yes
Pedalling time – Lap Yes
Pedalling index – Lap Yes
Lap list – Lap Yes
Navigation functions
Time to destination Yes
Estimated time of Arrival Yes
Distance to destination Yes
Heading Yes
Track Navigation Yes
Turning guidance Yes
Distance to the next waypoint Yes
Electronic shifting
Battery status Yes
Front gear (chain ring) Yes
Gear ratio Yes
Rear gear Yes
Di2 Shifting mode Yes
Status functions
Current temperature Yes
Minimum temperature Yes
Maximum temperature Yes
GPS Accuracy Yes
Device battery status Yes
Air pressure Yes
Weather trend Yes
Compass Yes

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1 thought on “new Sigmax Rox 11.1 Evo Bike Computer

  1. Seeing you say ‘if the price is right’: I found this on a German seller website. € 163!!!!
    I would have liked a bigger display. Wonder if phone can act as 2nd screen. Also regret there’s no remote control. (looks like I’m a rare bird to use this, incomprehensible)
    0 comments looks like not right..

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