Amazfit GTS 4 : Full Scientific Review ( Form over Function… )

🔴 General Amazon link*: https://geni.us/thequantifiedscientist 🔴 Amazfit GTS 4*: https://geni.us/Amazfit_GTS4 🟢 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▬▬▬▬▬▬▬▬▬▬ 🔴 Whoop Strap 4.0: join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership) 🔴 200$/150$ discount*: eight-sleep.ioym.net/QuantifiedScientist + add code “TQS” for 200$/150$ total discount 🔴 Oura Link: I recommend you search for a discount on reddit with the "Refer-A-Friend" program! 🔴 Oura Link2: ouraring.sjv.io/rQ4L33 (affiliate link that supports the channel, but doesn't have a discount) General Amazon link: https://geni.us/thequantifiedscientist Amazfit GTS 4*: https://geni.us/Amazfit_GTS4 Amazfit GTR 4*: https://geni.us/Amazfit_GTR4 Huawei Watch Fit 2: https://geni.us/HuaweiWatchFit2 Huawei Watch GT3 Pro: https://geni.us/thequantifiedscientist Huawei Watch GT Runner: https://geni.us/HuaweiWatchGtRunner Huawei Watch GT 3: https://geni.us/Huawei_Watch_GT3 Apple Watch Ultra: https://geni.us/AppleWatch_Ultra Apple Watch 8: https://geni.us/AppleWatchSeries8 Apple Watch 7 41 mm: https://geni.us/AppleWatch7_41 Apple Watch 7 45 mm: https://geni.us/AppleWatch7 Apple Watch 6: https://geni.us/0gNGeO Apple Watch SE: https://geni.us/Apple_Watch_SE_44 Samsung Galaxy Watch 5: https://geni.us/SamsungWatch5 Garmin Fenix 7: https://geni.us/Garmin_Fenix_7 Garmin Venu 2: https://geni.us/Garmin_Venu_2 Garmin Instinct 2: https://geni.us/Garmin_Instinct_2 Polar H10: https://geni.us/hnXc Polar OH1+: https://geni.us/D7bs5 Polar Verity Sense: https://geni.us/polarVeritySense ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 📸My Gear* (paid links, supports the channel and doesn’t cost you any more)📸 Camera body (main): https://geni.us/SonyA6600_body Camera lense (main): https://geni.us/SigmaContemporary Camera (B-roll): 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 Intro 01:27 Heart Rate Test 1: Spinning 06:12 Heart Rate Test 2: Running 07:08 Heart Rate Test 3: Cycling 09:45 Heart Rate Test 4: Weight Lifting 12:12 Heart Rate Test Conclusions 12:30 Sleep Stage Test 1: Sleep Stages 18:06 Sleep Stage Test 2: Overview 19:43 GPS Tracking Test 22:57 Conclusions & Recommendations In this video, we will be using scientific and systematic methods to test and review the GTS4's capabilities when it comes to sports and health tracking. But before we dive into the testing, let me give you some context. I recently reviewed the Amazfit GTR4, but unfortunately, it didn't perform very well in our testing. However, the GTS4 is a lighter and smaller version of the GTS4, with a square screen instead of a round one. The lower weight and different fit of the GTS4 could actually improve its performance over the GTR4, so I am excited to put it to the test. To accurately evaluate the GTS4, we've collected data for 29 workouts, 11 nights of sleep, and 13 GPS tracks using the watch. We'll be comparing this data to reference devices to see how well the GTS4 performs. So, if you want to know whether the Amazfit GTS4 is the smartwatch for you, this video will help you make that decision. I'll be sharing all the data, insights, and analysis you need to make an informed decision. After reviewing the GTS4 and also the GTR4 recently, I am honestly quite disappointed that both these amazing looking Amazfit devices perform so poorly when it comes to health and sports tracking. The screens and designs of these watches are really nice, but similar to the GTR4, the GTS4 also greatly disappoints when it comes to the measurements it takes. Overall, I would give the health and sports tracking of the Amazfit GTS4, 2 out of 5 stars. Maybe you don’t care about health metrics, but I suspect if this was the case, you wouldn’t have made it until the end of this video. I have gotten the best heart rate tracking on the wrist with Apple Watches, but these do require iPhones. If you want an overall good performing device that also tracks your health really well in addition to being a decent heart rate tracker, I would recommend the Whoop Strap. Thanks Theresa Buerscher for largely editing the video!