Samsung Galaxy Watch 6 : Full SCIENTIFIC Review

🔴 Galaxy Watch 6*: https://geni.us/GalaxyWatch6 🔴 Galaxy Watch 6 Classic*: https://geni.us/GalaxyWatch6Classic 🔴 General Amazon link*: 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 🔴 Galaxy Watch 6*: https://geni.us/GalaxyWatch6 🔴 Galaxy Watch 6 Classic*: https://geni.us/GalaxyWatch6Classic 🔴 General Amazon link*: https://geni.us/thequantifiedscientist 🔴 Garmin Epix 2 Pro link*: https://geni.us/Epix2Pro 🔴 Garmin Fenix 7 Pro link*: https://geni.us/Fenix7Pro 🔴 Garmin Forerunner 965 link*: https://geni.us/FR965 🔴 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 Test Background 01:26 Heart Rate Test 1 : Indoor Cycling 08:58 Heart Rate Test 2 : Outdoor Cycling 13:50 Heart Rate Test 3 : Weight Lifting 18:24 Sleep Stage Test 1 : EEG comparison 25:09 Sleep Stage Test 2 : Compared To Other Smartwatches 27:31 SpO2 / Oxygen Saturation Test 30:23 GPS Test 36:07 Limitations 36:42 Conclusions In this review we are going to systematically and scientifically test the ins and outs of the Galaxy Watch 6. The focus will be on the health and sports tracking capabilities of this new release from Samsung, based on more than two weeks of testing, which did result in a few surprises. We will test the heart rate tracking accuracy, sleep stage tracking performance, GPS tracking consistency and low oxygen saturation detection. As always, I do not want to waste your time, so there are timestamps in the description below, so you can easily navigate to those things that matter to you. 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. This will be my first in-depth review of the Galaxy Watch 6, and compared to my initial review a few weeks ago, there were a few surprises now that I have about 4 times more data to work with. As always, I am not going to bother listing the detailed specs of this watch, since you can find those on Samsung's website. The most important things to know are: the screen is a bit bigger, the processor is a bit newer, it now uses Bluetooth 5.3 instead of Bluetooth 5.2 and the RAM has increased slightly, otherwise the Watch 6 is largely similar to the Watch 5. So instead of going through the specs, we are going to be purely focussing on independent testing of the performance of this watch, since Samsung did promise improved health tracking. As always, let’s start off by looking at the heart rate tracking performance of the Galaxy Watch 6 classic, which I tested during a total of 9 indoor cycling workouts, 18 outdoor cycling workouts and 8 weight lifting sessions. Alright, but what's the final verdict? Well, it's not that different from my impression of the Galaxy Watch 6 classic I reviewed a week ago. In terms of health and sports monitoring, the Galaxy Watch 6 seems to be an average performer overall. It manages to track my heart rate well enough under easy conditions, but not when the circumstances become a bit tougher. The oxygen saturation measurements were pretty good actually, and with GPS tracking was good enough, as long as you don’t care about any of the details. On the other hand, the sleep stage monitoring wasn’t impressive, very often recording way too much awake time and limited deep sleep.