When you're searching for a budget-friendly running watch, the Garmin Forerunner 55 often sits at the top of the recommendation list. It bridges the gap between basic activity trackers and expensive multi-sport devices. Many buyers wonder about its waterproof capabilities and whether it holds up against sweat, rain, and swimming pool sessions.
The short answer is yes, it's water-resistant up to 50 meters (5 ATM). You can wear it safely in the shower, during heavy downpours, or while doing laps in a swimming pool. However, it lacks open-water swimming profiles and a barometric altimeter, meaning you can't rely on it for triathlons or deep-sea diving.
Let's dive deep into what this entry-level running watch delivers, how its waterproof rating holds up in everyday training, and whether it deserves a spot on your wrist.
Understanding the Waterproof Rating and Pool Limitations
The device carries a 5 ATM water rating. According to official specifications, this means it withstands pressure equivalent to a depth of 50 meters. You don't have to panic if you get caught in a torrential rainstorm or forget to take it off before jumping in the shower. As discussed in recent coverage by Reuters, the results are widespread.
For pool swimmers, the watch includes a dedicated pool swimming profile. It tracks your distance, pace, stroke count, and interval metrics while you log lengths.
+-----------------------------------+-----------------------------------+
| WATER ACTIVITY | FORERUNNER 55 SUPPORT |
+-----------------------------------+-----------------------------------+
| Showering, rain, light splashing | Fully supported |
| Pool swimming (laps) | Supported with metrics |
| Open-water swimming (lakes, ocean)| Not supported (no GPS tracking) |
| Scuba diving, high-speed waterski | Not supported (exceeds 5 ATM) |
+-----------------------------------+-----------------------------------+
If you swim in the ocean or open lakes, you'll hit a roadblock. The software doesn't support open-water GPS tracking, and salt water can degrade seals over time if you skip rinsing the device under clean tap water after your session.
Core Running and Training Features
Beyond water resistance, the device shines as a dedicated tool for runners transitioning from casual jogging to structured training. It cuts out distracting smart features to focus heavily on performance tracking.
Daily Suggested Workouts
Instead of guessing how hard to push, the watch analyzes your training history, fitness level, and recovery time to suggest daily running workouts tailored to you. These prompts guide you through varying intervals and base runs.
PacePro Guidance
PacePro helps you manage your race-day strategy. By loading a course into the Garmin Connect app, you set a target time or pace, and the watch adjusts your goal splits dynamically based on changes in elevation.
Battery Life Reality Check
Battery anxiety ruins training consistency. The hardware delivers up to two weeks of battery life in standard smartwatch mode and up to 20 continuous hours using full GPS tracking. If you run four times a week for an hour each, you only need to plug it in roughly once every ten days.
Design and Daily Usability
The build consists of fiber-reinforced polymer with a chemically strengthened glass lens. It weighs just 37 grams, making it lightweight enough to wear 24/7 without wrist fatigue.
The display uses a 1.04-inch transflective memory-in-pixel screen. While it won't dazzle you with vivid AMOLED colors, you can read it effortlessly under direct midday sunlight without straining your eyes.
Common Mistakes to Avoid
New users often make a few operational errors that lead to frustration:
- Pressing buttons underwater: Never push the physical control buttons while submerged. This action can force water past the rubber gaskets and compromise internal components.
- Expecting touchscreen controls: The interface relies entirely on five physical buttons. Swiping the screen won't work, which actually proves advantageous when your hands are sweaty or wet.
- Ignoring the companion app sync: The watch stores activity data locally, but deep trend analysis—like sleep quality scores and long-term training loads—requires syncing regularly with your smartphone.
Frequently Asked Questions
Can I track triathlons with the Forerunner 55?
No. Because it lacks multi-sport mode transitions and open-water swimming tracking, triathletes will find the software too restrictive. You'd need to step up to a model like the Forerunner 255 or 745.
Does it track sleep automatically?
Yes. The optical heart rate sensor and internal accelerometer monitor your movement and heart rate variability all night. You can view light sleep, deep sleep, and REM stages inside the smartphone app the next morning.
Do I need to wear a chest strap for accurate heart rate?
For steady-state running, the built-in wrist sensor works reliably. However, if you focus heavily on high-intensity interval training or sprinting where heart rate spikes rapidly, pairing an external chest strap via Bluetooth or ANT+ yields better responsiveness.
Is there music storage on the watch?
No. The device functions as a remote control to skip tracks or adjust volume on your paired smartphone, but it cannot store audio files or connect directly to wireless headphones for offline playback.
