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Garmin Varia RearVue 820 rear radar light

(8 reviews)
100 lumens - Battery life up to 24 hours

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Ref : 1891486
€304.45
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Based on 8 reviews

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Garmin Varia RearVue 820 rear radar light

More details In stock

Garmin Varia RearVue 820 rear radar light

€304.45
Our opinion

Thanks to the Varia RearVue 820, the smartest and most visible rear radar ever designed by Garmin, you can ride with peace of mind and in complete safety among other road users.

Antoine B.

Technology specialist

With its Varia RearVue 820, Garmin promises to continue revolutionising cycling safety by combining a powerful rear-facing radar with a high-performance red light. This next-generation model, which succeeds the classic Varia, detects vehicles up to 175 metres away with an expanded field of view. It identifies their size—whether a motorbike, car or lorry—and assesses their level of threat in real time. This radar offers advanced vehicle tracking by displaying lane changes. Alerts are clearly displayed on your Garmin bike computer or via the app, allowing you to keep your eyes on the road. These alerts can be visual and/or audible.

With a claimed visibility of up to 2 kilometres, this rear light reaches 100 lumens in Day Flash mode. It offers several lighting modes (steady, peloton, day/night flash, custom mode) and features an automatic brake light function that brightens when you brake. Waterproof to IPX7 standard, with a battery life of up to 24 hours and weighing just 90 grams, it will quickly become indispensable for all your cycling trips. With its sleek and compact design, this rear light installs quickly using a new seatpost mount compatible with the vast majority of bikes.

Thanks to all these features, the Garmin Varia RearVue 820 is simply perfect for cyclists who want maximum peace of mind, visibility and safety on the road amongst other road users.

Technical specifications:

- Dimensions: 98.9 x 25.9 x 43.2 mm
- Weight: 90 grams
- Lighting modes: Steady, peloton, night flash, day flash
- Custom lighting mode configuration: via the Varia app
- Radar-only mode
- Lumens: 25 in steady mode, 8 in peloton mode, 40 in night flash mode, 100 in day flash mode
- Water resistance: IPX7
- Battery life: 10 hours in continuous mode, 15 hours in peloton mode, 10 hours in night flash mode, 24 hours in day flash mode, 30 hours in radar-only mode
- ANT+: Yes (radar, bike lights)
- Bluetooth: Yes (radar, bike lights)
- Field of view: 220°
- Visibility range: 2 km
- Features: Rear light, Brake light, Rear radar, Vehicle side positioning, Vehicle size classification
- Vehicle threat classification: Based on speed, size and lateral range
- Maximum vehicle detection range: 175 m
- Radar beam width: 60°
- Included in the pack: mounting kit, charging cable, documentation
- Compatibility: Garmin Edge, Varia app
- Brand: Garmin


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Based on 8 reviews

  • Image utilisateur Alain B.
    Published May 21, 2026 at 10:24 pm (Order date: May 08, 2026)
    5

    A piece of equipment that should be mandatory for everyone (Translated review)

  • Image utilisateur Herve c.
    Published Apr 02, 2026 at 10:15 pm (Order date: Mar 16, 2026)
    5

    Lack of support from Garmin for the use of the tread bands. I hope to learn about the right adjustments to make. Thank you (Translated review)

  • Image utilisateur Jean N.
    Published Mar 27, 2026 at 01:47 pm (Order date: Mar 13, 2026)
    5

    very good product (Translated review)

  • Image utilisateur Jean Louis L.
    Published Mar 10, 2026 at 05:24 pm (Order date: Feb 26, 2026)
    5

    I recommend this radar varia 820 with very good autonomy. (Translated review)

  • Image utilisateur JACQUES A.
    Published Mar 09, 2026 at 11:21 am (Order date: Feb 26, 2026)
    5

    Works very well. (Translated review)

  • Image utilisateur Yves L.
    Published Mar 06, 2026 at 05:35 pm (Order date: Feb 23, 2026)
    5

    I had the old model. The 820 does everything better. I would have a hard time riding without a radar today. (Translated review)

  • Image utilisateur Mickael S.
    Published Feb 26, 2026 at 08:27 pm (Order date: Feb 13, 2026)
    5

    Very satisfied (Translated review)

  • Image utilisateur Yorick K.
    Published Feb 20, 2026 at 08:20 pm (Order date: Feb 05, 2026)
    5

    Perfect (Translated review)




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