A GPS watch has become a runner’s basic kit: it helps you run at the right pace, track your progress and follow a route. To choose the right one, start from how you run (beginner, road, trail, ultra or triathlon) and your budget, then check three criteria: GPS accuracy, battery life and compatibility with your training app. The rest (music, payments, maps) is down to personal preference.
The short answer
- You are a beginner: a simple watch between €150 and €300 is enough (Garmin Forerunner 165, Coros Pace 3).
- You are training for a 10K, half marathon or marathon: go for a running model with good battery life and guided workouts (Coros Pace 4, Garmin Forerunner 570).
- You run trails: a barometric altimeter and navigation become essential (Coros Apex 4, Suunto Race 2).
- You are preparing an ultra: battery life in an accurate GPS mode comes first (Suunto Vertical 2, Garmin Enduro 4).
- Garmin, Coros, Polar, Suunto and Apple Watch all connect to RunMotion Coach.
Contents
- Which GPS watch should you choose for your profile?
- Summary table: which watch for which runner?
- How much should you spend on a GPS running watch?
- The criteria that really matter
- Garmin, Coros, Polar, Suunto or Apple Watch: which brand should you choose?
- How to set up your GPS watch
- Are VO2max and fitness estimates reliable?
- FAQ
- Key takeaways
Which GPS watch should you choose for your profile?
There is no best GPS watch in absolute terms, only a watch that suits the way you run. Here is how to think about it depending on your profile.
You are new to running
You need the essentials: distance, pace, heart rate, good readability and at least a week of battery life. There is no need to go high-end: the Garmin Forerunner 165, the Coros Pace 3 or the Garmin Forerunner 70 do the job very well. Our detailed selection is in which GPS running watch to choose as a beginner. And if you are wondering whether you really need a watch for your first race, we answered that too: do you need a GPS watch for your first 10K?
You are training for a 10K, half marathon or marathon
You need reliable GPS on the road, structured workouts sent to the watch (intervals, race pace) and comfortable battery life for long runs. The Coros Pace 4, the Garmin Forerunner 570, the Suunto Run 2 or the Polar Vantage M3 are good choices. For more advanced metrics, the Garmin Forerunner 970 is Garmin’s high-end reference.
You run trails
Elevation changes everything. A barometric altimeter measures elevation far more accurately than GPS alone, and navigation (GPX track, or even maps) becomes very useful. It is sometimes required on technical trails and in the mountains. The Coros Apex 4, the Suunto Race 2 and the Polar Grit X2 Pro are designed for this.
You are preparing an ultra trail
Over 80K, 100K or 100 miles, the number one criterion becomes battery life in an accurate GPS mode, with a margin of at least 30% over your race time. The Suunto Vertical 2 and the Garmin Enduro 4 are the most reassuring over very long distances. All our advice is in which GPS watch to choose for ultra trail running.
You do triathlon or several sports
Multisport watches track swimming (pool and open water), cycling and running, with automatic transitions in triathlon. They also record sport-specific data, from the number of ski runs to rowing strokes. The Garmin Forerunner 570 and 970, the Garmin Fenix 9, the Coros Apex 4 or the Polar Grit X2 Pro cover these uses. You can also discover our triathlon training plans.
You want one watch for sport and everyday life
If looks and smart features matter as much as sport, an Apple Watch, a Wear OS watch or the Garmin Venu 4 are more urban. Their limit is often battery life: the Apple Watch needs charging almost every day, which is fine for one-hour runs but less so for long runs.
Summary table: which watch for which runner?
| Profile | Recommended models | Indicative budget | Key criterion |
|---|---|---|---|
| Beginner | Garmin Forerunner 165, Coros Pace 3 | €200 to €220 | Simplicity, one week of battery life |
| Road (10K to marathon) | Coros Pace 4, Garmin Forerunner 570 | €270 to €470 | Guided workouts, accurate GPS |
| Trail | Coros Apex 4, Suunto Race 2 | around €500 | Barometric altimeter, navigation |
| Ultra trail | Suunto Vertical 2, Garmin Enduro 4 | €600 to €900 | Battery life in accurate GPS mode |
| Triathlon, multisport | Garmin Forerunner 970, Polar Grit X2 Pro | €530 to €650 | Multisport profiles, open water |
| Everyday and sport | Apple Watch, Garmin Venu 4 | €250 to €480 | Smart features, design |
Indicative prices observed in October 2026 (Ekosport, manufacturers and Apple), subject to change and variations between countries.
How much should you spend on a GPS running watch?
From €150 to €300, you will find complete watches to start and progress: reliable GPS, wrist heart rate, programmable workouts, one to two weeks of battery life. This is the range of the Forerunner 165, Coros Pace 3, Suunto Run or Polar Pacer.
From €300 to €500, you gain battery life, a better screen (AMOLED) and features: dual-frequency GPS, altimeter, music, maps on some models. This is the core range for regular runners and trail runners.
Above €500, you mainly pay for extreme battery life, materials (sapphire, titanium), detailed maps and safety features such as satellite messaging. Useful for ultras and in the mountains, rarely essential on the road.
The criteria that really matter
GPS accuracy
A GPS watch records your position several times per second or per minute depending on its settings. To calculate a position, it needs to pick up at least 4 satellites. Signals can be disrupted in cities by buildings, in forests or by the weather: that is the first source of error. The second comes from processing the signals to calculate distance and speed, which is specific to each brand’s software.
In a straight line, a GPS watch is very accurate, whereas bends, especially on a track, are handled less well. That is why instant pace is rarely reliable, and an average over ten seconds or so, or over a lap, is more accurate. On average, the error is around 1%, or about ten metres per kilometre, or 2 to 3 seconds per kilometre. On a marathon, do not be surprised to see 300 to 500 metres more than the 42.195 km of the course.
“Multi-GNSS” or “dual-frequency” models use several constellations (GPS, Galileo, GLONASS…) and two frequency bands. They perform much better in cities, forests and the mountains.
Battery life
Look at two figures: battery life in everyday use (in days) and in GPS activity (in hours), ideally in “all systems” or “dual-frequency” mode. A week of everyday use and around ten hours of GPS are enough to start. For long trails and ultras, take your race time plus at least a 30% margin.
Screen and ergonomics
AMOLED screens are bright and pleasant; MIP (transflective) screens use less power and remain very readable in full sunlight. Physical buttons are invaluable in the rain or with gloves on. Weight matters too: at around 40 g, you forget the watch is there.
Heart rate
Heart rate data is useful in training and racing: our article on using a heart rate monitor explains how. The optical sensor on the wrist is reliable on steady-paced runs, and its accuracy improves with each generation. It remains less accurate during sharp changes in intensity, such as short intervals.
If you want accurate data in every session, nothing beats a chest strap. The fabric has improved a lot and it rarely irritates the skin any more. It is sold separately or in bundles, with HR in the product name: the Polar Grit X2 Pro comes without a strap, the Polar Grit X2 Pro HR with the Polar H10 strap. In practice, make sure you pair your own strap in the watch settings, so you do not record your training partner’s heartbeat.
Altimeter, compass and maps
Essential for trail running and hiking, they are unnecessary if you only run on the road. A GPX track with off-course alerts is the minimum in the mountains; topographic maps on your wrist are real comfort at night or on unfamiliar terrain.
Music
Some watches include a music player, compatible with Bluetooth headphones, so you can run without your phone. This is the case of the Garmin Forerunner 170 Music, the Garmin Forerunner 570, the Suunto Run 2 and the Garmin Venu 4. Music drains the battery fast: check the battery life claimed with music on.
Syncing and compatibility
Today, almost all watches sync wirelessly (Bluetooth or Wi-Fi) with the brand’s app: Garmin Connect, Coros, Polar Flow or Suunto App. Once this account is set up, you can also connect Strava and your training app.
RunMotion Coach automatically imports activities from Garmin, Polar, Suunto, Coros and Apple Watch (as well as Wahoo and Decathlon). With a Garmin, an Apple Watch, a Coros or a compatible Suunto, you can also send your scheduled workouts to the watch. With Polar, only activity import is available for now. Details are in our watch sync guide.
Your watch is chosen, but you need a plan? RunMotion Coach builds a programme tailored to your level, your availability and your goal, and sends it to your watch. Try the app free for 7 days.
Garmin, Coros, Polar, Suunto or Apple Watch: which brand should you choose?
Garmin has the widest range and the richest ecosystem (apps, accessories, maps). Coros focuses on battery life, low weight and competitive prices. Polar has long expertise in heart rate and offers rugged watches. Suunto takes care of design and the outdoors, with free maps. The Apple Watch is the most versatile for everyday life, but the least long-lasting.
How to set up your GPS watch
Set your watch to record one point per second: it is the most accurate setting. On runs of more than 6 hours, a power-saving mode can help, at the cost of some accuracy. Also use profiles suited to your sport (running, trail, triathlon): they display the right data and optimise battery life. Finally, since instant speed is the least reliable figure, prefer displaying average lap pace.
Are VO2max and fitness estimates reliable?
After a few runs, most watches estimate your fitness, your VO2max and even your future race times. They give a good idea, but remain estimates. VO2max is the maximum rate of oxygen consumption (in ml/kg/min): only a laboratory test can measure it precisely.
Also, the watch does not take terrain or weather into account. After a run on a muddy or snowy path, it may show your fitness dropping, when you may in fact be in the form of your life.
FAQ
What is the best GPS watch brand for running?
There is no best brand in absolute terms. Garmin offers the widest choice, Coros the best battery-to-price ratio, Polar recognised heart rate expertise, Suunto a good outdoor compromise. Choose based on how you run and your budget first.
How much does a good GPS running watch cost?
Between €150 and €300 for a complete watch suited to most runners. Count €300 to €500 for more battery life, an AMOLED screen and trail features, and over €500 for ultras and advanced features.
Do you need a chest strap with your GPS watch?
Not to start, nor for easy runs, where the wrist sensor is enough. A strap becomes worthwhile if you do a lot of intervals or want very precise data.
Apple Watch or sports watch for running?
The Apple Watch is fine for one-hour runs if you have an iPhone and want one watch for everything. For long runs, trails or if you forget to charge, a dedicated sports watch is better suited thanks to its battery life.
Is a GPS watch accurate over a marathon?
Yes, with an error of around 1%. It often shows a few hundred metres more than the official distance, because you do not always run the ideal line measured by the organisers.
Key takeaways
To choose your GPS watch, start from how you run: a simple watch to begin, a running model for the road, an altimeter and navigation for trails, long battery life for ultras. Set your budget, then check GPS accuracy, battery life and compatibility with your training app.
Ready to train with your new watch? Connect it to RunMotion Coach and get a plan that adapts to every run. Start your 7-day free trial.
Ekosport links: RunMotion is an Ekosport partner. These links do not change the price you pay.
