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COROS APEX 4 Review: 42mm of Battery Life and Very Little Fuss
An honest COROS APEX 4 (42mm) review covering the MIP screen, 41 hour GPS battery, offline maps, ECG, speaker and voice notes, plus who should buy it and who should not.
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By Jacob Chambers, Founder & Lead Reviewer · Updated 26 June 2026
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Corrections
Fitness products change. Specs get revised, models get discontinued, prices move. If you find something in a review that's out of date or inaccurate, please tell us which page and what's changed, and we'll get it fixed.
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