Garmin Forerunner 55 vs 255 – Check Which One Is Best & Why?

Garmin Forerunner 55 & Garmin Forerunner 255 share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the Garmin Forerunner 255 rather than the Garmin Forerunner 55.

Table Of Contents hide

1 Why Do I Recommend The Garmin Forerunner 255?

2 Side By Side Comparison

3 What Common Both Can Do?

4 Common Features

Why Do I Recommend The Garmin Forerunner 255?

The Garmin Forerunner 255 has multi-band GPS for superior accuracy, better route tracking, & improved performance in challenging environments, compared to the Garmin Forerunner 55’s single-band GPS.
Garmin Forerunner 255 includes HRV status for advanced heart rate analysis, better recovery tracking, & improved training insights, compared to the Garmin Forerunner 55, which lacks HRV monitoring.
It features a barometric altimeter for precise elevation tracking, improved hill climb analysis, & better outdoor performance, while the Garmin Forerunner 55 does not include an altimeter.
The Garmin Forerunner 255 supports triathlon & multisport modes for seamless race tracking, enhanced performance metrics, & more versatility, while the Garmin Forerunner 55 is limited to basic running and swimming.
Garmin Forerunner 255 has a Music Edition with onboard storage for offline listening, seamless workouts, & phone-free audio playback, compared to the Garmin Forerunner 55’s basic music controls.
It includes a pulse oximeter for blood oxygen monitoring, better sleep tracking, & high-altitude adaptation, while the Garmin Forerunner 55 does not measure SpO2.
The Garmin Forerunner 255 delivers up to 30 hours of GPS battery life for extended tracking, ultra-distance running, & fewer recharges, compared to the Garmin Forerunner 55’s 20-hour GPS battery life.

Maybe the Garmin Forerunner 55 price can make you comfortable because it’s a little bit cheaper than the Garmin Forerunner 255. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

Check Forerunner 255 Best Price

Check Forerunner 55 Best Price

Side By Side Comparison

Feature	Garmin Forerunner 255	Garmin Forerunner 55
Display Type	Transflective MIP (Improved)	Transflective MIP
Display Size	1.3 inches	1.04 inches
Resolution	260 x 260 pixels	208 x 208 pixels
Weight	49g	37g
Case Size	46mm	42mm
Strap Size Compatibility	22mm Quick Release	20mm Quick Release
Bezel Material	Fiber-Reinforced Polymer	Plastic
Battery Life (GPS Mode)	Up to 30 hours	Up to 20 hours
Charging Cable Type	USB-C Garmin Charger	Standard Garmin Charger
Multi-Band GPS	Yes	No
GPS Modes	GPS, GLONASS, Galileo, QZSS, BeiDou	GPS Only
Barometric Altimeter	Yes	No
Compass	Yes	No
Gyroscope	Yes	No
Accelerometer	Yes	Yes
Magnetometer	Yes	No
Wrist-Based Heart Rate Sensor	Garmin Elevate V4	Garmin Elevate V3
(HRV) Tracking	Yes	No
Pulse Oximeter (SpO2 Monitoring)	Yes	No
Body Battery Energy Monitoring	Yes	No
Training Readiness	Yes	No
Performance Condition	Yes	No
Training Load & Effect	Yes	No
Recovery Time Advisor	Yes	No
Price	Check Forerunner 255 Price	Check Forerunner 55 Price

What Common Both Can Do?

GDesign & Core Functionality: Both watches belong to Garmin’s Forerunner series, meaning they are primarily built for runners but still offer a variety of fitness and health tracking features. They both use button controls (5-button layout) rather than a touchscreen interface, making them easier to use during workouts and in different weather conditions.
Display Technology & Usability: Both watches feature a Transflective Memory-in-Pixel (MIP) display, ensuring excellent outdoor visibility, even in direct sunlight. Always-On Display support allows users to check time, stats, and notifications without needing to press a button.
Water Resistance & Durability: Both models are 5 ATM water-resistant, meaning they can handle rain, sweat, swimming, and showering without any issues. Their rugged, durable build makes them great for outdoor and sports activities.
Core Fitness & Health Tracking Features: Both the Forerunner 55 and 255 include 24/7 heart rate monitoring, tracking resting heart rate, stress levels, and Body Battery energy monitoring. Daily step counting, calorie tracking, distance tracking, and pace/cadence alerts are available on both devices. Sleep tracking is present on both, though the Forerunner 255 includes more advanced sleep metrics.
Running-Specific Features: Both models provide pace and cadence alerts to help runners maintain their desired performance levels. Daily suggested workouts are available, offering training guidance based on the user’s activity history. VO2 Max estimation helps runners assess their overall cardiovascular fitness levels.
Smart Features & Connectivity: Both models support LiveTrack, which allows friends or family to monitor your location in real-time during an activity. Smart notifications from a paired smartphone let users receive calls, texts, and app alerts. Music controls allow users to control playback from a connected smartphone. Bluetooth and ANT+ compatibility ensures that both watches can connect with external sensors, like heart rate straps and cadence sensors.
Garmin Connect & Customization: Both watches sync with the Garmin Connect app, where users can analyze data, review training history, and set goals. Customizable watch faces allow users to personalize their device using Garmin’s Connect IQ store. Quick-release straps enable easy band changes for a new look or different comfort preferences.
Battery Life & Power Efficiency: Both models offer up to 14 days of battery life in smartwatch mode, ensuring long usage without frequent charging.

Check Forerunner 255 Best Price

Check Forerunner 55 Best Price

Common Features

Feature	Garmin Forerunner 255	Garmin Forerunner 55
Brand & Series	Garmin Forerunner	Garmin Forerunner
Display Technology	Transflective Memory-in-Pixel (MIP)	Transflective Memory-in-Pixel (MIP)
Touchscreen	No	No
Always-On Display	Yes	Yes
Button Controls	Yes (5 buttons)	Yes (5 buttons)
Water Resistance Rating	5 ATM	5 ATM
GPS Functionality	Yes	Yes
Heart Rate Monitoring	Yes (Wrist-based)	Yes (Wrist-based)
Resting Heart Rate Tracking	Yes	Yes
24/7 Heart Rate Monitoring	Yes	Yes
Sleep Tracking	Yes	Yes
Daily Suggested Workouts	Yes	Yes
VO2 Max Estimation	Yes	Yes
Stress Tracking	Yes	Yes
Body Battery Energy Monitoring	Yes	Yes
Women’s Health Tracking	Yes	Yes
Step Counting	Yes	Yes
Calories Burned Tracking	Yes	Yes
Distance Tracking	Yes	Yes
Cadence Alerts	Yes	Yes
Pace Alerts	Yes	Yes
Safety & Assistance Features	Yes (LiveTrack)	Yes (LiveTrack)
Price	Check Forerunner 255 Price	Check Forerunner 55 Price

FAQ

Is the Garmin Forerunner 55 or Forerunner 255 better for runners?
Both watches are designed for runners, but the Forerunner 255 is better suited for advanced training due to its multi-band GPS, PacePro, ClimbPro, running power support, and detailed performance tracking. The Forerunner 55 is ideal for beginner and intermediate runners who need basic pace, distance, and cadence tracking without advanced metrics.

Do both watches support music playback?
The Forerunner 55 does not have built-in music storage but allows users to control music playing from a connected smartphone. The Forerunner 255 has a Music Edition that supports onboard music storage, letting users listen to music without a phone using Bluetooth headphones.

Which watch has better GPS accuracy?
The Forerunner 255 has superior GPS accuracy because it supports multi-band GPS, which improves tracking in challenging environments like urban areas and dense forests. The Forerunner 55 relies on single-band GPS, which is sufficient for most runners but may struggle in areas with poor satellite reception.

Can both watches track heart rate continuously?
Yes, both the Forerunner 55 and Forerunner 255 feature Garmin’s Elevate wrist-based heart rate monitoring technology, allowing continuous heart rate tracking throughout the day and during workouts. However, the Forerunner 255 has the newer Elevate V4 sensor, which is slightly more accurate.

Do these watches support swimming workouts?
Yes, both watches are water-resistant up to 5 ATM and can track pool swimming. However, the Forerunner 255 also includes open-water swimming, making it a better choice for triathletes and open-water swimmers.

Is the Garmin Forerunner 255 worth the extra price over the Forerunner 55?
The Forerunner 255 is worth the extra price for serious athletes, triathletes, or those who want more advanced health metrics, training insights, and navigation tools. If you only need basic running and fitness tracking, the Forerunner 55 is a more budget-friendly option.

Can I use Garmin Pay on either watch?
Garmin Pay is only available on the Forerunner 255, allowing users to make contactless payments directly from their watch. The Forerunner 55 does not support this feature.

Do both watches have a touchscreen?
No, neither the Forerunner 55 nor the Forerunner 255 has a touchscreen. They both use a five-button navigation system, which is more reliable for outdoor sports and workouts, especially in wet conditions.

How long does the battery last on both watches?
In smartwatch mode, both watches last up to 14 days. In GPS mode, the Forerunner 55 lasts up to 20 hours, while the Forerunner 255 lasts up to 30 hours (Standard) or 26 hours (255S).

Can I use the Forerunner 55 or 255 for cycling?
Both watches can track cycling workouts, but the Forerunner 255 offers more advanced cycling metrics, ANT+ sensor compatibility, and power meter support, making it a better choice for cyclists.

Do both watches support third-party apps?
Yes, both watches are compatible with Garmin Connect IQ, allowing users to download additional apps, watch faces, and widgets. However, the Forerunner 255 supports a wider range of apps and features better compatibility with third-party fitness platforms.

Is there a difference in weight and comfort between the two watches?
The Forerunner 55 is lighter at 37g, while the Forerunner 255 weighs 49g (Standard) and 39g (255S). Both watches are comfortable for all-day wear, but the Forerunner 255 may feel slightly bulkier due to its larger case and additional sensors.

Do these watches track sleep?
Yes, both watches offer sleep tracking, but the Forerunner 255 provides more advanced insights, including sleep score, sleep stages, and HRV status analysis. The Forerunner 55 provides basic sleep tracking with duration and movement data.

Which watch is better for a beginner?
The Forerunner 55 is the better choice for beginners due to its simpler interface, essential running features, and lower cost. The Forerunner 255 is better suited for advanced users who want more training and performance data.