Fitbit Air vs Amazfit Helio Strap (SCIENTIFIC Review)

▬▬▬▬▬▬▬▬▬▬👇DISCOUNTS/AFFILIATES*!👇▬▬▬▬▬▬▬▬▬▬ 🔴 Fitbit Air*: https://geni.us/FitbitAir_TQS 🔴 Amazfit Helio Strap*: https://geni.us/HelioStrap2026 🔴 Anything on Amazon*: https://geni.us/thequantifiedscientist 🔴 Eight sleep best $$$ (€) discount*: https://eight-sleep.ioym.net/TheQuant... + add code “TQS” for full discount 🔴 Whoop Strap MG / 5.0*: https://join.whoop.com/QuantifiedScie... (best $$$ off any new WHOOP membership) 🔴 Oura Ring Link: https://ouraring.sjv.io/WOdZee * (affiliate link that supports the channel, but doesn't have a discount) 🔴 Best Running app Runna*: https://web.runna.com/redeem?code=QUANT 🔴 Strava Premium 20%*: https://www.strava.com/subscribe/chec... 🔴 Levels CGM app best offer $$$ (USA only!)*: http://levels.link/QS 🔴 Anything on Amazon*: https://geni.us/thequantifiedscientist ☝️Affiliate* (paid) links. Supports the channel, doesn't cost you any more!☝️ 🟢 Instagram:   / quantified_scientist   🟡 Strava:   / strava   🟠 Shorts:    / @smartwatchshorts   🔵 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. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 🟡 Support the channel by becoming a member🙏:    / @thequantifiedscientist   PodCast:    / @fitforscience   @FitForScience Subscribe:    / @thequantifiedscientist   Video edited by Alex: https://linktr.ee/allexb 📸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 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Reference devices: ZMax + Dreamento: https://www.biorxiv.org/content/10.11... & https://github.com/dreamento/dreamento Polar H10: https://pubmed.ncbi.nlm.nih.gov/31004... 🔴 Polar H10: https://geni.us/hnXc Timestamps: 00:00 Intro 00:43 Heart Rate Scientific Test 10:17 Sleep Heart Rate 11:55 Sleep Stages Scientific Test 19:03 Conclusions And Apps