Apple Watch Series 9 & Ultra 2: SCIENTIFIC Review

🔴 Get an Apple Watch!*: https://geni.us/thequantifiedscientist 🟢 Instagram: https://www.instagram.com/quantified_scientist/ 🟠 Shorts: https://studio.youtube.com/channel/UCcpARGzXNaC62UQWns2dh2Q 🔵 Newsletter: www.robterhorst.com 🟡 Twitter: @QuantifiedRob * Affiliate (paid) links support the channel by earning me a commission on any sale, and it doesn't cost you any more! My opinions are completely my own, and this content is not sponsored. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 👇 $30 off any new WHOOP membership, affiliate* (paid) link, supports the channel!👇 https://join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership) ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 👇Amazon Affiliate* (paid) links. Supports the channel, doesn't cost you any more!👇 ▬▬▬▬▬▬▬▬▬▬BEST WATCHES▬▬▬▬▬▬▬▬▬▬ 🔴 Oura Link: I recommend you search for a discount on reddit with the "Refer-A-Friend" program! If you can’t find one: https://ouraring.sjv.io/rQ4L33 (affiliate link that supports the channel, but doesn't have a discount) 🔴 Whoop Strap 4.0: https://join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership) 🔴 Eight sleep 200$/150$ discount*: https://eight-sleep.ioym.net/TheQuantifiedScientist + add code “TQS” for 200$/150$ total discount 🔴 General Amazon link*: https://geni.us/thequantifiedscientist 🔴 Polar H10: https://geni.us/hnXc ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 📸My Gear* (paid links, supports the channel and doesn’t cost you any more)📸 Camera body (main): https://geni.us/SonyA6600_body Camera lens (main): https://geni.us/SigmaContemporary Camera (B-roll 1): https://geni.us/Sony_ZVE1 Camera (B-roll 2): https://geni.us/CanonEosM50MarkII and https://geni.us/Sony_ZVE10 Light: https://geni.us/Godox_VL150 Softbox: https://geni.us/NiceFotoSoftbox Light stand: https://geni.us/WalimexLightstand ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 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/31004219/ 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!