COROS Brings Full Offline Mapping to the Pace 4 in Surprising Firmware Update

As is often the case in the fast-moving world of sports technology, September brings its fair share of unexpected developments, but few expected this particular announcement. COROS has officially announced that existing users of the Pace 4 will soon receive a firmware update granting their devices the same level of mapping capabilities found across the rest of the brand’s robust watch lineup. This marks a massive paradigm shift, not just for COROS as a company, but potentially for several of its major competitors in the endurance sports watch market.

Historically speaking, the endurance-focused sports tech sector—dominated by brands like Garmin, COROS, Suunto, and Polar—has never offered full offline mapping at this particular price point. While smartwatch-centric brands like Apple, Samsung, and Google have incorporated maps and routing into various wearable devices, the mapping and routing architecture on smartwatches operates quite differently from the specialized endurance ecosystem designed for long-distance training, ultrarunning, and backcountry navigation. By extending comprehensive mapping to a more affordable model, COROS is challenging long-standing industry conventions regarding feature tiering.

Under the new update, which is rolling out as a public beta, the COROS Pace 4 gains full offline mapping functionality, placing it on par with higher-end siblings like the COROS Pace Pro and the COROS Nomad, or any other device in the COROS portfolio equipped with native mapping. Previously, the Pace 4 relied entirely on a breadcrumb-style routing system. While that legacy system allowed athletes to follow pre-loaded courses and routes, the display below the breadcrumb trail remained completely blank. With the new firmware installed, users are greeted with a fully rendered map underneath their route line, complete with rich geographical context.

Like other devices in the COROS ecosystem, this implementation utilizes a non-routable map structure. In practical terms, this means the map functions effectively as a detailed, high-resolution static image displayed beneath the active route. Because the system is non-routable, users cannot directly generate new routes or perform on-device recalculations or re-routing directly from the wrist. Any custom routing must be created and synchronized beforehand using external platforms, such as the companion COROS app, Strava Routes, or Komoot. However, for the vast majority of training scenarios, trail runs, and cycling adventures, this limitation proves entirely negligible, especially since the maps also include essential topographic details for elevation awareness.

For the COROS Pace 4, the primary hardware limitation when handling robust mapping data is internal storage capacity, which sits at 4GB. This is considerably smaller than the 32GB of storage found on the higher-end COROS Pace Pro or the COROS Nomad. The restricted capacity naturally imposes a limit on how much geographical map data can be downloaded for offline use at any given time. Fortunately, the efficient way COROS structures its downloadable map sections means users are not forced to download massive regions—such as an entire continent—the way Garmin’s ecosystem often requires. Instead, athletes can be highly selective about how they allocate their gigabytes.

To put the storage footprint into perspective, standard map downloads vary by geographic region due to overlapping tiles and borders. Downloading Germany requires approximately 1.1GB of space, while mainland Spain takes up around 780MB, and the United Kingdom and Ireland require roughly 580MB. In the United States, regional data demands about 330MB for California and roughly 225MB for Colorado, whereas South Africa consumes about 300MB, Japan takes up 550MB, and smaller locations like Mallorca require just 14.5MB. Consequently, staying well within the available storage limits for any specific trip or vacation remains straightforward, provided users selectively download only the specific map tiles required for their upcoming adventures.

Performance-wise, early testing indicates that map rendering speed on the Pace 4 shows no meaningful difference compared to more expensive hardware like the COROS Nomad. Both devices enumerate and display map tiles at essentially the same pace. However, minor software quirks have emerged during early evaluation. While rotating the wrist or the body, the map on the Pace 4 occasionally failed to update as rapidly or as accurately as expected, whereas the COROS Nomad rendered orientation changes instantly. Given that both watches feature built-in magnetic 3D compasses, this minor discrepancy is widely anticipated to be a transient beta bug that will be ironed out ahead of the official public release.

COROS confirms that once the mapping feature is enabled and configured on a Pace 4, the core mapping interface and functionality are identical to those found on the flagship Pace Pro. Naturally, hardware differences remain between the models, including overall battery endurance, display dimensions, case materials, and physical styling.

For athletes eager to test out the new capability, COROS has made the mapping feature available starting today through its public beta program. It presents an ideal opportunity for users to trial offline routing over the weekend, provided they are not facing a critical race day. As is standard practice in the sports tech community, installing pre-release software updates on the eve of an important race is strongly discouraged.