By clicking a retailer link you consent to third party cookies that track your onward journey. If you make a purchase, Which? will receive an affiliate commission which supports our mission to be the UK's consumer champion.

  • first look

ViAtomO2 Ring (PO2)

    £169.99View retailers
    Test score

    first look

    Lowest available price

    1. £169.99Amazon Marketplace UK

    By clicking a retailer link you consent to third party cookies that track your onward journey. If you make a purchase, Which? will receive an affiliate commission which supports our mission to be the UK's consumer champion.

    Sign up to unlock the full expert review

    The ViATOM O2 Ring (PO2) claims to record your blood oxygen levels accurately, and is medically approved. Wearing a small ring could be a handy way to keep track if you need to do so, but does it work well? We tested it to find out – get the verdict in our full review of this smart ring.

    pros

    Content has been blurred out, please log in to view.

    cons

    Content has been blurred out, please log in to view.

    What's included?

    • What is it?
    • What can it do?
    • What’s the setup like?
    • What’s it like to wear and use?
    • How long is the battery life?
    • How secure is it?
    • Is there anything else I should know?
    • Should I buy it?
    KEY TEST RESULTS
    Battery life
    Comfort
    • Aug 2020Released

    Suggested Alternatives