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Timestamps:
00:00 Testing Background
02:02 Short Unboxing : Ultra 2 + Series 9 45mm + Series 9 41mm
03:15 Indoor Cycling Test 1 : Female
07:06 Running Test 1 : Female
08:39 Weight Lifting Test 1 : Female
10:56 Indoor Cycling Test 1 : Male
13:47 Outdoor Cycling Test 2 : Male
18:38 Running Test 2 : Male
20:25 Weight Lifting Test 2 : Male
24:09 GPS Test
30:35 Oxygen Saturation Test
32:12 Conclusions

Reference devices
Polar H10 : https://pubmed.ncbi.nlm.nih.gov/31004...

In this video, we'll be conducting an initial set of systematic tests on two new models of Apple Watches, the Apple Watch Ultra 2 and the Apple Watch Series 9. The aim is to evaluate the heart rate measurement performance, oxygen saturation measurements, and the GPS tracking accuracy of these watches. For the heart rate measurements, we’ll do these tests on both myself and Theresa, in various exercise settings such as indoor and outdoor cycling, running, and weight lifting. Our aim is to determine whether these new models have improved functionalities over their predecessors, and the standardized nature of these tests will provide you with an initial credible basis for comparison. So, without further ado, let’s get started.

Hello everyone, for those of you that are new to the channel, my name is Rob, and I am a postdoctoral scientist specializing in biological data analysis. In this video we will be doing a first set of tests on the Apple Watch Ultra 2 and Apple Watch Series 9. Now, today's video differs slightly from our usual format. Instead of performing all tests first then shooting the video, I'll be picking up my newly released Apple Watches today, performing the tests, analyzing the results, and sharing them with you as I am doing them. Additionally, this testing process isn't limited to myself, Theresa here will also help out. I've purchased two Apple Watch Series 9's; a 41mm version for Theresa and a 45mm version for myself. Additionally, I've ordered an Apple Watch Ultra 2, which I'll mostly test on myself, but I'll also use it for some of Theresa's tests. To start, we'll focus on the heart rate performance. But first, I need to pick up the watches from the Apple store, so let's head out!