| The SIGMA ROX 8.0 answers just about all the questions you could imagine. Besides measuring altitude, inclination and temperature, the newly developed digitally encoded 3-channel wireless STS (SIGMA TRANSMISSION SYSTEM) makes it possible to use several sensors, such as pulse measurement, speed and cadence transmitter, at the same time. Analyzing the individual memories and total values on the PC, however, is only possible with the optionally available SIGMA docking station and software. |
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 Really impressed so far.. |
| Review Date: January 1, 2010 |
| Reviewer: landbamirum, Astoria, NY USA |
I just installed this yesterday, and so far I'm really impressed. The Rox 8.0 takes care of many of the annoying shortcomings found in most wireless cyclocomputers.
Installation is simple and everything is very well designed. The cadence and speed transmitters can both be installed either with zip ties or with O-rings, both of which are included. The transmitters both have green LED's that flash when they are receiving a signal from the magnet, so you know that you have installed them correctly. The batteries come pre-installed. The low-battery indicators are displayed on the head unit. The heart rate function actually worked the first time I tried it, which is rare in my experience.
The interface takes about 30 seconds of getting used to, and then it's fantastic. After your first day of using it and getting familiar with the functions, you will want to turn off the 'Button Info' feature in the settings, as this will cut your button presses in half. This feature, when turned on, displays the function of each button when you press it, and you must actually press the button a second time to perform the function. Everything is very predictable, if not fully intuitive. The bottom two buttons are used to move left and right, and as +/- buttons. The top two buttons are 'Select' and 'Back' type buttons.
The altimeter must be calibrated before each ride. You tell the Rox 8.0 your current altitude by holding the right two buttons-- this is not explained well in the manual. You can do this by retrieving one of three Home Altitudes; entering your actual altitude if you know it; or entering the current air pressure at sea level as provided by your weather station. After that, altitude is calculated using the current air pressure.
The trip values are reset by pressing the top left button. The unit stores the data from the last 7 trips if you want it to (it asks every time you reset.)
The only thing I don't like about the product is that the documentation could be better. Not all functions are explained in the manual (such as HR zone alarm, HR zone bar, how to use the alarm clock, etc.) Most of these functions are easy enough to figure out for yourself if you are familiar with similar functions elsewhere, but should still be explained in the documentation. Some are simply a mystery: I still haven't figured out the purpose of the Distance+ and Distance- functions. One counts up from zero and the other counts down from zero, and they can be reset separately from the other trip functions. I don't know why you would want to do this. |
Marvelous device
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| Review Date: May 2, 2009 |
| Reviewer: M. Heffron, Iowa City, IA, USA |
| This is a great device with amazing capability. I really like having all the capability in one easy-to-use cycle computer. That said, read the instructions before installing, again before using, and again after using! It has so many capabilities that not everything is patently obvious. Once you get the pattern of its operation, however, it's quite logical and simple to use. Having the speed, cadence, and heart rate all wireless is a real plus. I found the set-up far easier than for my 8 function Cateye. The first Rox 8.0 I received was defective but Sigma replaced it promptly and with no hassle. I'd recommend this to anyone without reservation. |
Great Cycling Computer
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| Review Date: August 19, 2009 |
| Reviewer: Gregory L. Borchert, Grapevine, Texas USA |
| I have owned several cycling computers, including various wireless units made by Cateye and the Shimano FlightDeck. The Sigma ROX is the best I've owned yet. Setup is straightforward, and though usage takes some getting used to, once you get accustomed to the way it works it is just outstanding. It is solid, well-made. I've been caught in two heavy rain storms and this unit never stopped working and never even fogged up. The reports it produces through its PC link and software are the most detailed I have seen. I'm so happy with it that I'm looking for a second unit for my time trial bike. |
ROX 8.0 Excellent
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| Review Date: July 1, 2009 |
| Reviewer: R. Lechner, Bloomfield, NY USA |
This is the best cycling computer I have ever purchased. Easy installation. Read the operating instructions before using. Then read them again. Set up took a little time but once set up it is great.
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The best for the money
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| Review Date: November 20, 2009 |
| Reviewer: L. Leer, Arcata, CA |
| Excellent value. Well thought out work flow. Relatively easy set up (though as always with these things, the instruction manual is more of an afterthought than a useful tool). Have only been using it for about a month, so don't know about durability. |
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