Sigma Rox 9.0 computer review

Rox by name, rocks! by nature

Our rating 
4.0 out of 5 star rating 4.0
GBP £244.67 RRP | USD $345.62
Sigma Rox 9.0

Our review

Well made, reliable, with all you’ll ever need except GPS
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The Rox series is Sigma’s new top line all-singing, all-dancing duo of computers,  with the 9.0 being topmost, with wireless cadence, speed and heart rate. The software is easy to use, and the USB cradle is well made. In typical Sigma style it requires no tools to install, and setting up is simple, linear and quick.


It’s easy to read and fairly intuitive, and nothing we did caused any interference. The price is high, but compared to computers in the same range (Polar CS400 with cadence option and Polar CS600) that allow data logging and download to a PC (Windows only with Sigma) it isn’t that bad. 

Product Specifications


Name Rox 9.0
Brand Sigma

Description # Installs on handlebar or stem # Programmable favorite functions # Heart rate monitor with detailed functions # PC Interface and software data center functions # Memory back-up function when changing a battery # Normal cycling computer functions including cadence
LCD Backlight Yes
Low Battery Indicator Yes
Cycle Computer Functions Auto Start-Stop
Further Features Back Light Temperature