Apple Watch Series 8 : Full Scientific Review

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Timestamps:

00:00 Intro

01:04 Heart Rate Test 1: spinning

04:40 Heart Rate Test 2: Walking

05:21 Heart Rate Test 3: Cycling

08:11 Heart Rate Test 4: Weight Lifting

10:14 Heart Rate Issue: Strava Export

11:31 Sleep Stage Test 1

16:49 Sleep Stage Test 2: Overview

18:23 Temperature Sensor Discussion

19:35 GPS Tracking Test

21:58 spo2 Test

24:28 Step Test 1: Real Steps

26:30 Step Test 2: False Steps

27:55 Conclusions and recommendations

Over the last 4 days I have extensively tested the new Series 8 Apple Watch for its sports and health tracking performance. In this video we will take a comprehensive look at the heart rate accuracy, sleep tracking performance, GPS tracking, oxygen saturation measurements and step counting accuracy of this brand new watch from Apple. I will also make a few quick remarks about the new temperature sensor that Apple added.

In this video I will focus on unbiased performance testing of this new Apple Watch. So, without further ado, let’s get to the test results, and I want to start off with the heart rate tracking results. I showed you a first test in which I did 5 training sessions in the last video, but I now more than tripled the data, which means I tested the Apple Watch Series 8 during a total of 16 training sessions.

Looking at the Series 8 Apple Watch as a whole, I am quite happy with its performance. It has some of the best heart rate tracking and sleep tracking out of all the devices I have tested; And in my cycling tests, it also has pretty reliable GPS tracking. The step counting was also quite good, and the only thing that was not great were the oxygen saturation measurements. The main downside of this watch is the relatively short battery life of the Apple Watch. You need to be really consistent with your charging schedule, and find some time each morning or evening to top off the charge. However, as long as you are willing to do that, and you own an iPhone, the Apple Watch is one of the best sports and health trackers out there. The main thing that is still missing with regards to health tracking, is providing advice based on the health measurements it takes. Still, overall, I would give the Apple Watch Series 8, 4.5 out of 5 stars.