Garmin Forerunner 55 GPS Running Watch (Black)
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Our quick verdict
A proven beginner GPS running watch at €128, about €41 cheaper at Decathlon than at three other Irish shops on 9 November 2026. Promotion runs to 30 November.
Great for
- New runners who want GPS, heart rate and coaching
- Anyone who prefers buttons to a touchscreen
Skip it if
- You want a touchscreen, music storage or maps
- You want the newest features (see the Forerunner 165)
The Garmin Forerunner 55 is a beginner-friendly GPS running watch with wrist heart rate, Garmin Coach training plans and up to 2 weeks of battery in smartwatch mode. It’s €128 at Decathlon Ireland, cheaper than the other Irish shops we compared on 9 November 2026.
Key features
- Built-in GPS with speed, distance, pace, wrist heart rate and cadence
- Garmin Coach free training plans and PacePro pacing
- Up to 2 weeks in smartwatch mode, up to 20 hours in GPS mode
- Water-resistant to 50m
- Built-in safety and tracking features
- 2-year warranty and 365-day returns for Decathlon members
What reviewers say
TechRadar calls the Forerunner 55 a well-designed beginner’s watch with fast, accurate GPS and useful safety features that are rare at this price. The trade-offs: a low-resolution screen with no touchscreen, and it’s very similar to the older Forerunner 45. Decathlon’s Irish site shows 4.7 out of 5 from 1,535 customer reviews (9 November 2026).
Source: TechRadar (Forerunner 55 review).
Good to know in Ireland
- Price comparison for the black Forerunner 55, checked 9 November 2026: Decathlon €128.00; Kean’s €169.00 (010-02562-14); Arnotts €169.95 (010-02562-10); Expert.ie €169.99 (010-02562-10). Irish shops list the black watch under two Garmin part numbers, so check the model code if it matters to you.
- Decathlon lists the promotion from 8 to 30 November 2026.
- Sold and shipped by Decathlon Ireland; members get 365 days to return Decathlon products.
- The screen is not a touchscreen: it uses buttons.
Product image: © Decathlon, from the shop’s official website.
Pros and cons
What we like
- Accurate GPS and wrist heart rate
- Free Garmin Coach plans
- Long battery life
- Well under €150 at Decathlon
Watch out for
- Low-resolution screen, no touchscreen
- No music or maps
- Older design
Specifications
| GPS | Built-in |
|---|---|
| Heart rate | Wrist-based |
| Screen | 208 x 208, buttons only |
| Battery | Up to 2 weeks (smartwatch), up to 20 hours (GPS) |
| Water resistance | 50m |
| Training | Garmin Coach, PacePro |
Questions people ask
How long does the offer last?
Decathlon lists the promotion until 30 November 2026.
How do you know it’s cheaper?
We compared the black Forerunner 55 at four Irish shops on 9 November 2026: Decathlon €128.00, Kean’s €169.00, Arnotts €169.95 and Expert.ie €169.99.
Does it have a touchscreen?
No, it has physical buttons.
