Published changes versus COROS PACE 3 (2023) include a display technology change from Memory LCD (MIP) to AMOLED and a body size change of +1.5 mm height and +1.5 mm width. These are specification differences, not measured real-world scores.

An upgrade is easiest to justify if you care about a display technology change from Memory LCD (MIP) to AMOLED and a body size change of +1.5 mm height and +1.5 mm width. If those areas already meet your needs on COROS PACE 3 (2023), the move is optional rather than urgent.

Versus COROS PACE 3 (2023), the display changes are a display technology change from Memory LCD (MIP) to AMOLED. Higher refresh or brightness usually helps scrolling smoothness and outdoor visibility more than a small size change alone.

The listed chipset is unchanged versus COROS PACE 3 (2023). Everyday performance should feel familiar unless software differences change responsiveness.

COROS PACE 4 (2025) fits buyers who prefer a compact phone footprint and people moving up from COROS PACE 3 (2023). This is an editorial reading of size and published differences, not a personalized recommendation.

Keep COROS PACE 3 (2023) if you do not need the listed generation changes. Moving to COROS PACE 4 (2025) makes more sense when the listed upgrades match what you actually use.

The clearest published improvements are a display technology change from Memory LCD (MIP) to AMOLED and a body size change of +1.5 mm height and +1.5 mm width. Treat these as catalog differences rather than ranked review scores.

Against COROS PACE 3 (2023), the catalog does not show obvious trade-offs such as a higher launch price or a clearly heavier body. That does not mean the device is flawless—only that those drawbacks are not evident in the compared specs.