Coros Pace 4 Pro Leaked
A Coros Pace 4 Pro has surfaced in Indonesia’s official e-Sertifikasi DJID database, filed under model number W337. Wearable Fans spotted the listing, published on 5 August 2026 under COROS’s local distributor, PT Denka Pratama Indonesia. As you can see from the image, the certificate number is 125116/DJID/2026 and China is the country of origin. There is no hardware specification linked to the filing.
Regulatory filings of this kind typically indicate a launch within weeks. COROS followed a similar path from certification to announcement with the Pace 4 and the Apex 4.
The W337 model number has a different prefix from earlier models and likely marks significant new hardware rather than a firmware/case variant of the existing Pace 4. The ‘Pro’ suffix implies the same.
Coros already sells an AMOLED Pace Pro watch launched in October 2024 as the step up from the Pace 3, but without a generation number in its name (presumably Pace Pro can be thought of as Pace 3 Pro?). A Pace 4 Pro would bring the Pro suffix in line with Coros‘s numbered naming and align with how competitors use similar Pro/Ultra names.
Once a marketing name appears in these filings, a launch typically follows “a few weeks to a couple of months away.” Wearable Fans says it will keep checking the FCC, SIRIM and RRA databases for further filings.
Take Out
Should coros add new hardware here, it would most likely be a built-in speaker/mic or flashlight. Whatever it is, it would probably be a new capability rather than simply a better processor. Thoughts? New optical sensor?
Quick answers
What is the Coros Pace 4 Pro?
A new COROS running watch spotted in an Indonesian regulatory filing under model number W337, sitting above the current Pace 4 in the range.
When will the Coros Pace 4 Pro launch?
No official date exists. Regulatory filings of this type typically precede a commercial announcement by weeks to a couple of months.
What does the Pro name suggest for the Coros Pace 4 Pro?
A step up from the standard Pace 4, likely bringing display, mapping or build quality upgrades while keeping the series’ lightweight positioning.
Last Updated on 6 August 2026 by the5krunner

tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors. ID

