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Trying to use the Garmin Varia RTL515 radar with Bryton Rider 420. I have it paired via ANT+ successfully. I get the sound notifications and the black strip shows up on the right side of the display. However I can not see any indications of vehicles on it. Apparently the manual has not been updated after radar support has been added to the device, so I can't tell how it should work exactly. The web site only says "While in the Meter Page, the radar strip will display approaching vehicles"

Sample image of radar strip from manufacturer:

sample image of radar strip

I assume the little round thing on the bottom right should be a vehicle and it should move up as it approaches, but on my device it stays there. Tried with the radar's demo mode as well. Has somebody got this to work?

Firmware versions (latest as reported by the respective tools):

  • Bryton R040.005.0014 EX:05.011.001
  • Varia 3.32
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  • Great question - have you tried reaching out to Garmin and Bryton ?
    – Criggie ♦
    Apr 25, 2022 at 3:25
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    Not yet. I expect Garmin to say "Turn it off and on again. Use Garmin computer." and Bryton to say ... nothing (apparently they don't have a stellar support). Just wanted to collect some data points beforehand about what experience others had, if any.
    – Jester
    Apr 25, 2022 at 12:09
  • I think Bryton should test their 420 with Varia... not sure if they did or miss something to support Varia 515. I'm also using 420 and Varia 515 and have similar problem.
    – Eric
    May 3, 2022 at 7:54

1 Answer 1

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I have both devices. Bryton connect to varia radar. It show the black line. What happend in my is that when vehicle appear, it show black line and give me tone puls. It does not show vehicle with dot or distance (moving dots like on garmin). After vehicle pass, black line dissapear. Comparable with Fenix 7, it detect correct. Only missing is a little better graphical aproach. But I am satisfy. What I was not able to do is select light mode of varia with bryton.

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  • There are two relevant ANT+ protocols: the radar and the smart light protocol. I think most of the non-Garmin manufacturers implemented the radar but not the smart light protocol. Thus, you can’t control the light settings from a non-Garmin unit, or even check the battery status on the unit (you can use your smartphone app). It is what it is, as they say.
    – Weiwen Ng
    Oct 30, 2022 at 23:43
  • Thanks for the confirmation. Yes, that is exactly what I see as well. It's also disappointing that you can't turn off the light, not even with the button on the varia itself. You can only choose various lighting modes, but not turn it off. In a group, even the supposed group friendly low power mode gets me complaints so I can't use the radar :/
    – Jester
    Oct 30, 2022 at 23:50

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