Garmin Forerunner 55

Name: Garmin Forerunner 55
Brand: GymBum UK
SKU: B0953XKD13
Price: 141.99 GBP
Availability: InStock

Engineered with purpose. Worn with confidence

£141.99 GBP

~~£141.99 GBP~~ £141.99 GBP

Sale Sold out

Tax included. Shipping calculated at checkout.

Designed for performance

Color

Whitestone Aqua Black

Style

Smartwatch

Quantity

More Payments

GymBum UK Size Guide

🧡 GymBum UK Sports Bra Size Guide

Size	Chest (inches)	Underbust (inches)
XS	33 ⅛	27 ½
S	34 ⅝	29 ⅛
M	36 ¼	30 ¾
L	39 ⅜	33 ½
XL	42 ½	36 ¼
2XL	45 ⅝	39
3XL	48 ⅞	41 ¾

🧍♀️ Women’s Activewear

UK	US	EU	Asian	Tops / Bras	Leggings / Shorts	Trainers (UK/EU/US)
4–6	0–2	32–34	S	XS	XS	3.5 / 36 / 5
8–10	4–6	36–38	M	S	S	4–5.5 / 37–38 / 6–7.5
12–14	8–10	40–42	L	M	M	6–7.5 / 39–40 / 8–9.5
16	12	44	XL	L	L	8–8.5 / 41–42 / 10–11
18	14	46	XXL	XL	XL	9–9.5 / 43–44 / 11.5–12

🧍♂️ Men’s Activewear

UK	US	EU	Asian	Tops / Hoodies	Shorts / Joggers	Trainers (UK/EU/US)
S	S	46	M	36–38" Chest	30" Waist	6–7 / 39–40 / 7–8
M	M	48–50	L	38–40" Chest	32–34" Waist	8–9 / 41–42 / 9–10
L	L	52	XL	42–44" Chest	36" Waist	10 / 43–44 / 11
XL	XL	54	XXL	46–48" Chest	38" Waist	11 / 45–46 / 12
XXL	XXL	56	3XL	50–52" Chest	40–42" Waist	12–13 / 47–48 / 13–14

🧵 Fit Notes

Asian sizes typically run 1–2 sizes smaller than UK sizing.
For a performance fit, choose your regular UK size.
For a relaxed fit, size up.
Measurements are approximate and may vary slightly by fabric and style.

Fit Tip: Some of our activewear follows Asian sizing (approx. 1–2 sizes smaller than UK). Refer to the GymBum Size Guide for accurate conversions.

Meet your new running companion. The Garmin Forerunner 55 is the GPS smartwatch that transforms how you train, packed with features that make every mile count. Lace up and let this intuitive device track your runs with precision—capturing time, distance, speed, pace and heart rate at a glance. Want to level up? Garmin Coach delivers expert-guided training plans for 5K, 10K and half-marathon distances, adapting to your goals and recovery.

The PacePro feature keeps you on pace with GPS-guided coaching for your chosen course, while race time predictions help you strategise race day like a pro. Beyond running, this smartwatch monitors your entire day—steps, calories, sleep quality and stress levels—giving you the full picture of your fitness and wellness.

Advanced features like Body Battery energy tracking and fitness age insights help you understand your body better, so you can train smarter, not just harder. With eight built-in sports profiles from cycling to yoga, plus the freedom to download custom watch faces and apps from the Connect IQ Store, you'll never get bored. And thanks to impressive battery life, you'll squeeze in plenty of runs between charges. Automatically sync your activities to the Garmin Connect app and watch your progress unfold.