Coros Apex 4 vs Garmin Fenix 9 Pro Solar
Both reach max-tier training analytics, but the Fenix 9 Pro Solar adds a titanium case and a solar display rated for up to 291 days of battery life in saver mode, for $670 more than the Apex 4.
CorosCoros Apex 4
GarminGarmin Fenix 9 Pro Solar
- •You want max-tier training analytics without paying flagship Garmin pricing
- •Multi-month solar battery life isn't something you need
- •You want Garmin's titanium build and industry-leading solar battery life
- •$670 more is worth it for the refinement and battery longevity
The Apex 4 delivers much of what a Fenix 8 or Forerunner 970 offers for training depth and durability, at a noticeably lower price. Smart features are minimal by design, but the core running and trail tracking is excellent.
Announced August 25, 2026, the Fenix 9 Pro Solar swaps the Fenix 9 Pro's bright AMOLED screen for a transflective MIP display ringed with solar cells, stretching battery life to roughly 57 days in normal use and up to 291 days in battery saver with steady sunlight. Everything else, titanium case, 64GB storage, Elevate 5 sensor with ECG, speaker and mic, and optional inReach, carries over from the AMOLED Pro.
*Estimated — this model's exact GPS battery life isn't published by the manufacturer. All figures are standard GPS mode, midsize case, no solar boost.
†Estimated — this model launched too recently to have an established customer rating yet.
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