Coros Pace 3 Review: Dual-Frequency GPS for Under 230 Euros

A GPS watch under 230 euros with dual-frequency GPS, a next-generation heart rate sensor and a built-in MP3 player sounds like a marketing promise too good to be true. Yet three years after launch, the Coros Pace 3 is still one of the most-cited watches in French buyer's guides, alongside models that cost twice as much. At RunMorph, this review draws on the consistent feedback of several French testers who wore it for weeks, some for more than a year and over 3,000 kilometers, rather than just unboxing it for a photo.

© Coros, official photo used for editorial purposes

Coros Pace 3: the watch that pushed Garmin to rethink its entry-level range

When Coros launched the Pace 3 in summer 2023, the brand was only a few years old, up against a Garmin that had dominated for two decades. The bet was simple on paper and formidable in practice: pack dual-frequency GPS, a next-generation optical heart rate sensor and a built-in MP3 player into a 30-gram case, for 249 euros. At the time, Garmin had nothing comparable under 350 euros.

The impact showed up fast in French buyer's guides. The Pace 3 became a benchmark cited almost everywhere entry-level GPS watches came up, often pitted head-to-head against the Garmin Forerunner 255, which cost 100 euros more for broadly similar features. Coros has since extended the lineup with the Pace 4 and then the Pace Pro, but the Pace 3 is still on sale, now under 230 euros at most French retailers, and still holds its own three years after launch. That longevity, rare in sports electronics, is why it still earns a spot in 2026 buyer's guides.

Coros Pace 3 specs: dual-frequency GPS under 250 euros

Dual-frequency GPS, 5-LED sensor, MP3 player: what these choices really change

The Pace 3's main technical selling point is its dual-frequency satellite chip, a technology Garmin reserved for far more expensive models when the watch came out. In practice, the watch picks up two GPS frequency bands at once, which cuts track errors in tough environments: dense city centers, under tree cover or between buildings. The trade-off is higher battery drain, which explains the gap between the claimed 38 hours in standard GPS and 15 hours in full dual-frequency mode.

The next-generation optical heart rate sensor, with 5 LEDs and 4 photodetectors, replaces the one on the Pace 2, which the press found disappointing at the time. The built-in pulse oximeter also enables an altitude mode that monitors blood oxygen saturation above 2,500 meters, a plus for high-mountain hikers.

Finally, the onboard MP3 player is a rarity at this price: 4 GB of storage lets you carry several hundred tracks without a smartphone, as long as you transfer them manually from a computer. There's no Spotify or Deezer integration, unlike pricier watches in the Coros lineup such as the Pace Pro.

© Coros, official photo used for editorial purposes

Field test: running, triathlon and multisport over several months

At RunMorph, our analysis of how the Pace 3 behaves in the real world draws on several independent French reviews whose testers actually wore the watch over time, not just on the official spec sheet.

Sport-Passion, which tested the watch for four weeks with a detailed GPS comparison protocol, found a track very close to that of a Garmin Forerunner 255 worn at the same time, with small, consistent deviations of around 2 meters and no effect on the total distance measured. The review also puts numbers on a clear gap between claimed and measured battery life: about 33 hours in standard GPS mode versus 38 hours claimed, and 12 to 14 hours in dual frequency versus 15 hours claimed, with heavy use of navigation and zoom draining the battery noticeably faster. Conversely, in smartwatch mode with sleep tracking, real-world battery life beats the claim, at around 22 days.

FFL, after more than a year of combined use by two testers over more than 3,000 kilometers of running, from -15 to 35 degrees and up to 3,200 meters of altitude, highlights very fast satellite lock, within seconds, where a Garmin Forerunner 255 tested alongside it sometimes needed nearly three minutes. This review also confirms comfortable battery life in real weekly use: a charge every 7 to 10 days for someone running 4 to 6 times a week, with a full charge taking about 1 h 30 min.

On the multisport side, a third review rates the MIP display's outdoor readability as excellent, even in direct sunlight or during open-water swims, and reports a consistent GPS track in the city, in forests and in the mountains, with no notable dropouts over several weeks of varied use including trail running, swimming and strength training. The same review points to a heart rate sensor that still has room to improve during the hardest efforts, a finding shared by Sport-Passion, which notes small dropouts during surges.

Opinions mainly diverge on one point: the gap between claimed and real battery life under heavy use, precisely measured by Sport-Passion, contrasts with FFL's broadly positive experience in standard weekly use. Our take at RunMorph is simple: the Pace 3 easily delivers on its promises in everyday use, but a trail runner who pushes dual-frequency mode on a long run should expect real battery life about 15 to 20 percent below the marketing figure.

RunMorph tip: on a long run in dual frequency, plan a margin of at least 15 percent below the claimed battery life. For comparison, the Garmin Forerunner 255 and the Garmin Forerunner 165 remain the two direct rivals in this price segment.

© Coros, official photo used for editorial purposes

Coros Pace 3 vs Coros Pace 4: which one should you pick?

The question readers ask most when they're on the fence is how much the Coros Pace 4 really changes; it has come out since and RunMorph has already reviewed it. On paper, the Pace 4 improves on almost every point, but the price gap deserves to be spelled out in black and white.

In practice, the Pace 4 mainly adds an AMOLED display that looks better day to day and a slight battery gain in everyday use, for 20 euros more at launch, a gap now often cut to under 40 euros on sale. GPS and heart rate performance stay very close across both generations. On a tight budget, the Pace 3 remains a rational choice, with no real sacrifice on the essentials.

Coros Pace 3 pros and cons

Our field verdict: who is the Coros Pace 3 for?

The Pace 3 targets a specific profile: runners and triathletes who want a reliable tool to structure their training without paying for features they'll never use. It's a perfect fit for a road 10K, half marathon or marathon build, or for runnable trail outings where breadcrumb navigation is enough. It makes less sense for ultra-trail in unfamiliar terrain, where the lack of full mapping becomes a real handicap as soon as course markings get sparse.

RunMorph Coach verdict

Three years after launch, the Coros Pace 3 still has no real direct rival under 230 euros. It owns its trade-offs (no mapping, no contactless payments, a single case size) but delivers the essentials with a seriousness that's rare at this price: reliable dual-frequency GPS, battery life that holds up in real use despite a measured gap against the marketing figures, and a heart rate sensor that's more than good enough for everyday training. 8.0/10: an excellent entry-level choice, best reserved for runners who don't need full mapping.

Key takeaways for your training

• Reliable dual-frequency GPS: accuracy confirmed by several independent comparisons against watches that cost twice as much.
• Keep an eye on battery life in dual frequency: on a long run, plan a margin of about 15 percent below the claimed 15 hours.
• Not a tool for ultras in unfamiliar terrain: without full mapping, plan your route ahead of time in the app.
• Heart rate sensor good enough for training: pair it with a chest strap for threshold or high-intensity interval sessions if you want maximum accuracy.
• An excellent first GPS watch: ideal for structuring a first 10K, half marathon or marathon build without blowing your budget.