COROS APEX 2
COROS APEX 2 is a watch from 2022, sitting in the mid-range band at an indicative $299.
It reads 14 of the 33 signals this comparison tracks. Full coverage of activity. Nothing at all from body composition.
By sensor class: 5 at high accuracy and 4 at consumer grade. That grade is my classification of the hardware, not a lab test. Those readings come from an optical heart rate sensor, an optical blood oxygen sensor, a GPS receiver, a barometer and an accelerometer. Blood oxygen is a spot reading you take yourself, not a continuous one.
Its 17 days per charge are the 31st longest of the 74 devices of its kind here that publish a figure. The transflective MIP screen can stay always on. Built-in GPS. Rated 5ATM, fine for swimming. On top of the tracking it also handles music on the device and offline maps. Case size 43mm. No subscription is required.
Outgoing mid outdoor (single-band GPS) w/ SpO2; superseded by APEX 4.
Key specs
What it tracks
Heart & vitals
Sleep
Activity
Fitness
Buying for battery life? See every device ranked by battery life
Turn a supported wearable into daily health scores
MyBodyAI reads Fitbit, Oura, Polar and Withings by logging in, and Garmin from a data export, then builds daily recovery, sleep, load and immune scores, a biological age estimate, and early warnings. Optional, and separate from this comparison.
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