Interested in reviews of Sigma ROX 4.0 black? It got 4.5 out of 5 stars from our customers. Find specific customer reviews of Sigma ROX 4.0 black below. We will appreciate if you also share your experiences with Sigma ROX 4.0 black after purchasing.
GPS inaccuracy. especially in sharper driving with more turns.
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Tomáš, Loděnice
Rated 14/05/2025, variant Sigma ROX 4.0 black
Verified purchase
I don't see anything positive about it except for the Czech language, I really don't recommend it
Czech
It's not easy to attach (no rubber band, but tightening straps. )
Does not show the total distance travelled
It's connected to the mobile, but the data is not compatible
It's hard to control while driving
The sealing rubber under the holder does not hold
Controls for two things that I can barely turn off.
It doesn't have the value it's selling for
For the money I would expect faster response and easier control of both the app and the device itself
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Zdeněk, Frenštát p.R.
Rated 08/04/2025, variant Sigma ROX 4.0 black
Verified purchase - review from a price comparison website
The GPS principle, very inaccurate. The device works very poorly, the instructions are completely inadequate
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Michaela, Třemošná
Rated 29/12/2024, variant Sigma ROX 4.0 black
Verified purchase
Seamless installation, communication with other brand's chest strap, accelerometer, cadence meter purchased separately, after pairing everything you don't have to deal with any accessories, everything connects and syncs itself in seconds. I was skeptical about the navigation at first, but it was easy to get used to, although it is a bit limited due to the display, however it works with the mobile app so you can look at your phone at any time (I don't carry it handy when I'm on the bike though). Displaying messages (sms, whatsapp) is a great advantage, when you hear the mobile you know whether it is important or it has time.
GPS loading speed
Update
compatibility with accessories
availability of accessories
gps accuracy
communication with mobile phone via BT
cooperation with mobile
navigation
possibility to customize the display
synchronisation with PC
detailed PC application providing a huge amount of information and detail
barometric altimeter
battery life
charging speed
durability
Price/performance
navigation can be a bit confusing in the forest
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Radek, Praha 1 - Staré Město
Rated 15/12/2024, variant Sigma ROX 4.0 black
Verified purchase
huge response, starts to work after about 2-3 km of driving
navigation completely opaque and delayed
after driving about 500km, the app shows you barely 150km
overall a very bad piece for the money
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Anonymous customer
Rated 10/12/2024, variant Sigma ROX 4.0 black
Verified purchase
small, wireless
I would need another bracket for the second wheel
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Aneta, Kladno
Rated 28/10/2024, variant Sigma ROX 4.0 black
Verified purchase
A great helper
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Petr, Jičín 1
Rated 03/07/2024, variant Sigma ROX 4.0 black
Verified purchase
a good choice for undemanding cyclists, also suitable for scooters
it works on a GPS basis, so there is no need to install anything in the wheel wires, etc.
nothing
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Radek, Litomyšl
Rated 17/04/2024, variant Sigma ROX 4.0 black
Verified purchase - review from a price comparison website
Fast pairing with the application
Fast GPS loading
Usable navigation
Battery life
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Petr, Praha 6
Rated 04/04/2024, variant Sigma ROX 4.0 black
Verified purchase
handy little thing, you don't need any cables. Works well so far
The discount code on the Komoot app does not work.
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