Here's your full sports and fitness-focused in-depth review of the Samsung Watch4 and Watch4 Classic. In this review I'll dive into all the new features focused on sports/fitness/health, and then I'll dive into a range of sports including running, cycling, walking and swimming to see how it stacks up for both GPS and optical heart accuracy rates .

This is the first watch to use the new Google + Samsung variant of Wear OS. This new operating system (or a slightly modified operating system) provides access to the Google Play Store for apps including Strava, Adidas and many more that were previously unavailable or unupdated on Tizen.

0:00 Overview of models
1:58 WearOS 3.0 and sports apps
3:13 Measuring body composition
5:35 New optical HR sensor
6:23 Sleep and snoring tracking
7:19 Nighttime blood oxygen measurement
7:51 Compass in Google Maps
8:27 ECG functionality
9:15 Blood pressure measurement
9:52 Running tests
11:49 Bike testing
13:11 Swimming tests
2:40 PM Closing

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