You’re making strides. Now, let’s take the next step. Get the training and recovery insights you’ll need to notch your best time yet. Get an uninterrupted picture of your daily health and nightly sleep with up to 12 days of battery life in smartwatch mode and up to 26 hours in GPS mode. With its sleek design and 1.4 oz weight, you’ll almost forget you’re wearing Forerunner 255S — even when you’re asleep. Featuring easy-to-use buttons and a silicone band, this watch is ready to wear — and tear — with durable Corning® Gorilla® Glass 3.
- MORNING REPORT
Receive an overview of your sleep, recovery and training outlook as soon as you wake up — alongside HRV status and weather. You can even customize your report to show you what you want to see.
- HRV STATUS
Gain a deeper understanding of your overall health, recovery and training performance through heart rate variability while you sleep, based on technology developed by our Firstbeat Analytics™ team.
- BUILT-IN SPORTS APPS
Tap into 30+ built-in activities, including the triathlon and open-water swimming profiles — new to the Forerunner 255 series. For races and brick workouts, transition to the next activity with a single button press.
- RACE ADAPTIVE TRAINING PLANS
Get ready for your next race, including marathons, with training tips, personalized daily suggested workouts and completion time predictions. Just enter your race, and we’ll build a plan that’ll help you meet your goals.
- DAILY SUGGESTED WORKOUTS
View your entire week of daily suggested workouts, which adapt after every run to match your performance and recovery as well as the races coming up in your Garmin Connect™ smartphone app calendar.
- GARMIN COACH
Free adaptive training plans include 5K, 10K and half-marathon programs, featuring guidance from expert coaches that adapt to you and your goals.
- TRIATHLON AND MULTISPORT PROFILES
Switch between sports with one press by using built-in profiles for triathlons, duathlons, brick workouts and swimruns. Or, create your own custom multisport profiles.
- WRIST-BASED RUNNING DYNAMICS
This smartwatch measures crucial running metrics such as cadence, stride length, ground contact time and more.
- WRIST-BASED RUNNING POWER
See how much power you’re applying to the trail or the road so you can manage your effort and fine-tune your training. No accessory required.
- RECOVERY TIME
Know how long to recover before your next high-effort workout based on your latest training as well as overall stress, sleep and daily activities outside of workouts.
- PACEPRO™ FEATURE
To help you plan your race day strategy, this feature offers GPS-based pace guidance for a selected course or distance, so you can tailor your efforts to what’s ahead.
- GRADE-ADJUSTED PACE
Don’t run out of steam before the activity is over. Understand how to adjust your pace over varying terrain to perform according to your plan.
- TRAINING STATUS
Using new indicators such as HRV status, your recent exercise history and performance, get an easy insight into your overall effort — and whether you’re training productively, peaking or strained.
- ACUTE LOAD
See your training history, and compare the intensity of your recent workouts to the optimal range to help improve your fitness.
- TRAINING EFFECT
See how your workouts influence your endurance, speed and power with aerobic and anaerobic training effect feedback.
- PERFORMANCE CONDITION
While you run, get an analysis of your pace and heart rate for a real-time assessment of your current ability to perform.
Create or find existing courses in the Garmin Connect app, so you’ll never run out of places to run. Or plan one on other platforms such as Strava and Komoot, then automatically sync them to your Forerunner.
- TRACK RUNNING
Ready for some speedwork? Input your lane on the built-in track run activity to record accurate lap distances and see your distances in meters.
- VISUAL RACE PREDICTOR
Based on your running history and overall fitness level, get an estimate of what your pace could be for a 5K, 10K — or even a marathon. Plus, trend data highlights your training’s impact over time.
Mix up your training with different types of workouts. Free HIIT, strength, cardio, yoga and Pilates workouts come preloaded on the watch, and you can download more from the Garmin Connect app.
- TARGETED ADAPTIVE COACHING FOR CYCLING
View your entire week of daily suggested cycling workouts directly on your smartwatch — which adapt to match your performance and the demands of upcoming events in your Garmin Connect™ smartphone app calendar.