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Did you know that we deliver to 130 countries or regions and offer a range of delivery options to suit you wherever you are in the world? Find out more

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International delivery

With almost everything on selfridges.com available for International Delivery, you can send your order to 130 countries or regions around the world, including North America, Australia, the Middle East and China.

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South KoreaNot available for delivery to South Korea

SMARTECH

Lumen Metabolic Health Coach device

₩950,000
Price includes taxes & duties

Colour:BLACK

Quantity: 1

1

Only available for UK Delivery

Become a Keyholder to unlock a festive treat. Join now

Sign up to our Selfridges+ service and you can enjoy unlimited deliveries for 12 months.

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Lumen Metabolic Health Coach device

A device-to-app metabolic health coach that measures your metabolism through your breath to help you make the right choices for your body.

Lumen packs lab-level metabolic measurements into a sleek, handheld device. It uses CO₂, temperature, humidity, and flow sensors to examine the breath in under a minute, giving immediate feedback on whether your body is burning carbohydrates or fats, as well as a comprehensive analysis of your metabolic health over time.

Lumen gives you real-time insights into how nutrition, sleep, exercise, and stress affect your metabolic health and provides daily, tailored lifestyle recommendations so you can make high-impact changes

This science-backed tool helps 300,000+ people around the world take the guesswork out of reaching their goals. Lumen empowers you to take charge of your health journey.

Your Lumen device comes with a one-year membership to the Lumen app, which gives you:
Real-time metabolic insights
Metabolic flexibility assessment
Daily personalized nutrition plans
Meal combos that fit your macros
Nutrition, movement, and sleep tracking
Daily goals to motivate you on your health journey
In-depth education on metabolic health

Ref: R04357533

Each Lumen device is meticulously crafted using top-tier manufacturing processes and undergoes multiple rigorous tests to ensure the highest quality.

  • Dimensions: 4.02 x 1.63 x 1.31 inches

  • Weight: 95 grams

  • Materials: Stainless steel mouthpiece and cover

  • Battery: Lithium Polymer battery with up to two weeks (depending on daily usage)

Delivery To South Korea

Sorry, this product is unavailable for South Korea Delivery

International Delivery

  • Selfridges+ UK:
    unlimited deliveries for a year
    ₩19,000
  • Delivery to the UKfrom ₩8,500

Complimentary UK Click & Collect

Enjoy delivery to your chosen store, on a day that suits you. Order until 10pm for next day collection.

Complimentary returns within 14 days

It's ok if you change your mind, we offer a 14-day returns policy, from the day you purchased your item in store or from the day you received or collected your online order. Exceptions do apply, we unfortunately can't accept returns on all items.

Taxes and duties are included in the item price but are non-refundable.

Please read our terms & conditions to find out more.

GLOBAL

₩140,000
  • Unlimited UK timed, nominated day and standard delivery on orders over £100
  • Unlimited worldwide deliveries subject to minimum order values
  • Minimum order value of £100 (or local currency equivalent) when shipping to: UK, Hong Kong, USA, Saudi Arabia, UAE, Singapore, Guernsey, Kuwait, Macau, Canada, Thailand, Qatar and Jersey
  • Minimum order value of £300 (or local currency equivalent) to all other Selfridges delivery destinations. Check applicable countries in our terms & conditions
  • Valid for 12 months from the day you subscribe or from the day you renew your subscription

UK

₩19,000
  • Unlimited UK timed, nominated and standard delivery
  • Next day UK delivery (if ordered by 10pm UK time)
  • Complimentary returns
  • Valid for 12 months from the day you subscribe or from the day you renew your subscription

Only available for UK Delivery

Become a Keyholder to unlock a festive treat. Join now

Sign up to our Selfridges+ service and you can enjoy unlimited deliveries for 12 months.