Venu 3

Garmin Venu 3 is a watch from 2023, sitting in the mid-range band at an indicative $449.

It reads 19 of the 33 signals this comparison tracks. Full coverage of activity. Nothing at all from body composition. Rarer readings it does take: AFib detection, Body Battery and ECG recording.

By sensor class: 11 at high accuracy and 3 at consumer grade. That grade is my classification of the hardware, not a lab test. Those readings come from an optical heart rate sensor, ECG electrodes, an optical blood oxygen sensor, a skin temperature sensor, a GPS receiver, a barometer and an accelerometer. It records an ECG and screens for atrial fibrillation. Those are screening features, not a diagnosis. Blood oxygen is measured during sleep, not continuously through the day.

Its 14 days per charge are the 43rd longest of the 80 devices of its kind here that publish a figure. The AMOLED screen can stay always on. Built-in GPS. Rated 5ATM, fine for swimming. It weighs 30 g. On top of the tracking it also handles music on the device and contactless payments. Case size 45mm. No subscription is required.

Health/lifestyle AMOLED; Gen 5 ECG + skin temp. Sleep Coach, nap detection.