Garmin Forerunner 55 Review: Is It Worth It in 2025?
The Garmin Forerunner 55 is an entry-level GPS running watch that punches above its weight with comprehensive training guidance and excellent ease of use. At just 37g, it's one of the lightest running watches available, yet it packs in Garmin Coach training plans, PacePro race strategies, and multi-sport tracking. For beginner to intermediate runners seeking a no-nonsense training companion without breaking the bank, this is a compelling option.
Pros
- Exceptionally lightweight and comfortable
- Intuitive button-based navigation
- Comprehensive training guidance included
- Excellent value for money
- Accurate GPS and heart rate tracking
- Two-week battery life
Cons
- No music storage or playback
- Monochrome display looks dated
- Limited smartwatch features
- No advanced running metrics
Key Features
- Built-in GPS tracking with heart rate monitoring at the wrist
- Garmin Coach adaptive training plans for 5K, 10K, and half-marathon
- PacePro feature provides GPS-based pace guidance for race day
- Incredibly lightweight at just 37g with 42mm case size
- All-day activity tracking including steps, calories, and sleep monitoring
- Multiple sport profiles including running, cycling, swimming, and yoga
Our Review
Design & Build
The Garmin Forerunner 55 embraces simplicity in the best possible way. Weighing a mere 37 grams with its 42mm case, this is one of the lightest GPS running watches you can buy, making it virtually unnoticeable during runs or all-day wear. The matte black finish feels durable despite the lightweight construction, and the silicone band is comfortable even during sweaty workouts.
Garmin has opted for a button-only interface with five physical buttons surrounding the monochrome display. While the screen might look basic compared to modern AMOLED smartwatches, it's perfectly readable in bright sunlight and conserves battery admirably. The trade-off for this lightweight design is a somewhat chunky profile at 1.2cm thick, though it never felt cumbersome during testing.
Performance & Training Features
Where the Forerunner 55 truly shines is in its training guidance and running-specific features. The GPS locks on quickly and accurately tracked distances within acceptable margins during test runs. Wrist-based heart rate monitoring proved reliable for steady-state efforts, though serious athletes might want a chest strap for interval training precision.
The Garmin Coach integration is exceptional at this price point. You get access to adaptive training plans from expert coaches that adjust based on your progress and recovery time. The suggested workouts feature removes decision fatigue—just press start and follow the on-screen guidance. Race time predictions and finish time estimates add useful context to your training progression.
The PacePro feature deserves special mention. Input your target race distance and finish time, and the watch provides GPS-based pace guidance that accounts for elevation changes. This is typically found on much more expensive models and is invaluable for race day strategy.
Activity Tracking Beyond Running
While optimized for running, the Forerunner 55 includes profiles for cycling, pool swimming, track running, virtual running, yoga, and breathwork. All-day activity tracking covers the basics—steps, calories burned, and sleep monitoring—though don't expect the advanced sleep insights of premium Garmin watches.
Battery Life
Battery performance is excellent. Garmin claims up to two weeks in smartwatch mode, and our testing confirmed this holds true with moderate notification usage. In GPS mode, expect around 20 hours of continuous tracking, which is more than adequate for marathon training and most ultra-marathons. The charging cable is proprietary but connects magnetically for hassle-free charging.
Value
At £116.48, the Forerunner 55 represents outstanding value in the GPS running watch category. You're getting genuine Garmin coaching features, accurate tracking, and a proven platform that receives regular software updates. Yes, you sacrifice music storage, contactless payments, and advanced metrics like running power or training load focus, but those features aren't essential for most runners.
Compared to budget fitness trackers that add running features as an afterthought, the Forerunner 55 is a purpose-built running tool that happens to track daily activity. For beginners graduating from smartphone tracking or intermediate runners who don't need every metric under the sun, this hits the sweet spot between functionality and affordability.
Who Is This For?
The Garmin Forerunner 55 is ideal for beginner to intermediate runners who want structured training guidance without overwhelming complexity. It's perfect for anyone training for their first 5K, 10K, or half-marathon who values simplicity and battery life over smartwatch bells and whistles. If you're a serious athlete needing advanced performance metrics or someone who wants music playback and contactless payments, look to the Forerunner 255 or 265 instead.
Our Verdict
The Garmin Forerunner 55 delivers exactly what most runners actually need: reliable GPS tracking, intelligent training guidance, and excellent battery life in a featherweight package. At £116.48, it's difficult to find better value in a dedicated running watch. While it lacks the flashy features of more expensive models, its focus on core running functionality makes it a smart choice for the majority of runners.