The COROS Pace 4 launched in November 2025 at $249. The COROS Pace Pro launched a year earlier at $349, now discounted to $299. Both are AMOLED running watches targeting serious runners who want dual-frequency GPS and clean training data without paying flagship prices. The $50 gap between them raises an obvious question: does the Pace Pro's extra features justify the difference, or is the newer Pace 4 simply the better watch?

The short answer depends entirely on how you run. If you go phone-free with music, want ECG heart rhythm monitoring, or use older ANT+ sensors, the Pace Pro earns its premium. If you want the lighter watch, longer GPS battery, and trail-ready sensors, the Pace 4 wins. This comparison breaks down every category so you can decide without guessing.

Both watches were tested across road runs, interval sessions, and outdoor trail runs. All pricing is confirmed from COROS's official site as of November 2026.

Key Takeaways

• The COROS Pace 4 is lighter (32g vs 37g), newer, and lasts three hours longer in GPS mode; it's the better choice for most runners

• The Pace Pro adds ECG, ANT+ connectivity, and 32GB music storage at a $50 premium over the Pace 4

• Neither watch supports NFC contactless payments; both have 5 ATM water resistance and dual-frequency GPS

Quick Verdict

• COROS Pace 4 ($249): Best for most runners. Lighter, newer chip, longer GPS battery, includes compass and thermometer. The default pick.

• COROS Pace Pro ($299): Best for runners who store music on the watch, want ECG, or use ANT+ sensors like power meters or chest straps.

COROS Pace 4 Overview

The COROS Pace 4 is the company's newest entry-level GPS sport watch. At 32 grams on the nylon band, it's one of the lightest AMOLED running watches available. The 43.4mm case fits comfortably on smaller wrists without overhang, and the 1.2-inch 1,500-nit display is readable in direct sunlight and in the dark.

The chip upgrade over the Pace 3 is meaningful. Dual-frequency GPS battery life doubled compared to the previous generation, reaching 31 hours in multi-band mode and 41 hours in all-systems GPS mode. Daily battery life sits at 19 days. The watch also gains dual microphones for voice training logs, reinforced lugs, a barometric altimeter, 3D compass, and an ambient temperature sensor, which makes it better-equipped for trail running than the Pace Pro.

On the data side, the Pace 4 includes training load, training status, race predictor, heart rate variability, SpO2, and all the standard running dynamics COROS is known for. The 4GB storage holds maps and workouts but no offline music.

• Weight: 32g (nylon band), 40g (silicone)

• Display: 1.2-inch AMOLED, 390x390, 1,500 nits

• GPS battery: 41h (all-systems), 31h (dual-frequency)

• Daily battery: 19 days

• Storage: 4GB (maps and workouts, no music)

• Sensors: Optical HR, SpO2, barometric altimeter, 3D compass, thermometer, dual mics

• Connectivity: Bluetooth only (no ANT+)

• Water resistance: 5 ATM

What Works:

• Best battery life in its class for dual-frequency GPS

• Lighter and smaller than the Pace Pro, more comfortable on smaller wrists

• Trail sensors (compass, thermometer) add genuine utility off-road

• Newest chip and software; will receive firmware updates first

Limitations:

• No offline music storage

• No ECG

• No ANT+ for older sensors and cycling power meters

• 4GB storage limits map downloads on long trips

Pricing: $249 (standard nylon), $279 (aluminum edition). No free tier.

Best for: Road runners and trail runners who want the lightest, newest COROS with the longest GPS battery.

COROS Pace Pro Overview

The COROS Pace Pro launched in October 2024 as COROS's fastest-processing entry-level watch at the time. It's heavier and larger than the Pace 4 (37g, 46mm) but adds capabilities the Pace 4 deliberately omits: a 32GB music library, ECG sensor, and ANT+ connectivity.

The 1.3-inch AMOLED display is slightly larger than the Pace 4's 1.2-inch screen, with mineral glass protection that's more scratch-resistant than standard glass. Battery life is 38 hours in GPS mode and 20 days in daily use, slightly behind the Pace 4's GPS performance but marginally ahead in daily use. The 30x faster map rendering over the Apex 2 Pro that COROS advertised at launch is still a genuinely fast watch; the Pace 4's chip advantage is noticeable in benchmarks but imperceptible in day-to-day use.

The 32GB music storage is the standout differentiator. If you run without your phone and want playlists, podcasts, or audiobooks on your wrist, the Pace 4 simply cannot do this. The ECG feature detects atrial fibrillation and irregular rhythm, adding health monitoring that goes beyond what optical sensors can capture. ANT+ opens up compatibility with chest-strap heart rate monitors and cycling power meters that don't support Bluetooth.

• Weight: 37g

• Display: 1.3-inch AMOLED, 416x416, mineral glass

• GPS battery: 38h

• Daily battery: 20 days

• Storage: 32GB (music + maps)

• Sensors: Optical HR, SpO2, ECG, barometric altimeter

• Connectivity: Bluetooth + ANT+

• Water resistance: 5 ATM

What Works:

• 32GB music storage makes phone-free long runs practical

• ECG adds meaningful cardiac health monitoring beyond optical HR

• ANT+ keeps older sensors and cycling power meters in the mix

• Slightly larger screen improves readability during speed intervals

• Mineral glass is more scratch-resistant than standard glass

Limitations:

• 3 hours shorter GPS battery than the Pace 4

• 5g heavier, 46mm case may feel large on narrower wrists

• Older chip than the Pace 4; will receive firmware updates later

• No compass or thermometer

Pricing: $299 (reduced from $349). Refurbished units available from COROS at $239.

Best for: Runners who want phone-free music, ECG monitoring, or ANT+ sensor compatibility.

Head-to-Head Comparison

Here's how the two watches stack up across the features that matter most for running:

• Weight: Pace 4 wins (32g vs 37g). The 5g difference is noticeable over marathon distances.

• GPS battery: Pace 4 wins (41h vs 38h in all-systems mode).

• Daily battery: Essentially tied (19 vs 20 days).

• Display: Pace Pro's 1.3-inch is slightly larger; Pace 4's 1,500-nit brightness is higher. Both are excellent.

• Music storage: Pace Pro wins (32GB vs none on the Pace 4).

• ECG: Pace Pro only.

• ANT+ connectivity: Pace Pro only.

• Trail sensors: Pace 4 wins (compass, thermometer).

• Chip generation: Pace 4 is newer.

• Mineral glass: Pace Pro only.

• Price: Pace 4 is $50 cheaper.

The GPS accuracy between the two is comparable. Both use dual-frequency GPS and COROS's established multi-band processing. In back-to-back tests on the same routes, the results are nearly identical. Where the hardware differs is in the extra sensors: the Pace 4's compass helps on trail navigation, while the Pace Pro's ANT+ opens up power-based cycling.

Heart rate accuracy is also comparable. Both use COROS's current optical sensor for real-time HR. If you need the most accurate HR data possible, a COROS Heart Rate Monitor worn on the arm is the upgrade in either case, not switching between these two models.

Which Should You Choose?

The decision comes down to two specific use cases that only the Pace Pro covers: phone-free music and ANT+.

• You want the lighter watch for road races: Pace 4. At 32g, it's among the lightest GPS sport watches available. Every gram matters in a marathon.

• You run long without your phone and need music: Pace Pro. No amount of firmware updates will add music storage to the Pace 4.

• You have a chest strap or cycling power meter on ANT+: Pace Pro. The Pace 4 only supports Bluetooth sensors.

• You run trails and want compass and temperature data: Pace 4. The Pace Pro doesn't include these sensors.

• You want ECG heart rhythm monitoring: Pace Pro.

• You're on a tight budget: Pace 4. At $249, it's $50 cheaper and arguably the stronger watch for most runners.

• You're upgrading from a COROS Pace 3: Either watch is a meaningful upgrade. See our COROS Pace 3 review for how the Pace 3 compares to both.

If you're still undecided, the Pace 4 is the better default choice. It's newer, lighter, lasts longer in GPS mode, and includes sensors the Pace Pro doesn't. The Pace Pro earns its price only if you actively need music storage, ECG, or ANT+.

For more context on how COROS stacks up against other running watch brands, see our COROS vs Garmin comparison and our full COROS lineup guide. If you're weighing a step up in the COROS range, the COROS Apex 4 is worth considering for more serious trail and ultra running.

A Note on Scheduling Around Training

Both watches track training load, recovery, and sleep data. The challenge for most athletes isn't collecting that data but actually using it to structure a week. If you're using either watch alongside a productivity system, Lifestack can read your wearable's recovery data and schedule deep work, calls, and rest periods around your actual readiness, not just calendar availability.

Frequently Asked Questions

Is the COROS Pace 4 better than the Pace Pro?

For most runners, yes. The Pace 4 is lighter, newer, and lasts longer in GPS mode. It also includes trail sensors (compass, thermometer) the Pace Pro lacks. The Pace Pro is better only if you specifically need music storage, ECG, or ANT+ connectivity.

Does the COROS Pace 4 have music storage?

No. The Pace 4 has 4GB of storage for maps and workouts but does not support offline music playback. If phone-free music is important to you, the Pace Pro's 32GB storage is the main reason to choose it.

Does the COROS Pace Pro have ANT+?

Yes. The Pace Pro supports both Bluetooth and ANT+ sensor connectivity. This means it works with older chest-strap heart rate monitors and cycling power meters that use ANT+ rather than Bluetooth. The Pace 4 supports Bluetooth sensors only.

What is the difference between COROS Pace 4 and Pace Pro GPS battery?

The Pace 4 lasts 41 hours in all-systems GPS mode versus 38 hours for the Pace Pro, a 3-hour advantage. In dual-frequency GPS mode, the Pace 4 lasts 31 hours. For ultramarathon-distance racing or multi-day adventures, the Pace 4's battery edge matters.

Does COROS Pace 4 have ECG?

No. The Pace 4 does not include an ECG sensor. ECG (electrocardiogram) monitoring for detecting irregular heart rhythms is exclusive to the Pace Pro in this lineup. For ECG and more advanced health metrics, the Pace Pro or the higher-end COROS VERTIX range would be the options to consider.

Which COROS watch should I upgrade to from the Pace 3?

Either the Pace 4 or the Pace Pro is a meaningful upgrade over the Pace 3. The Pace 4 brings the larger AMOLED display, dramatically improved dual-frequency GPS battery life, and new sensors. The Pace Pro adds music and ECG. For detailed context on the Pace 3's strengths and weaknesses, our COROS Pace 3 review covers what changed and what stayed the same.