Scanwatch | Horizon

Dive into
deep health insights

Withings Scanwatch Horizon

Special edition

Iconic codes of luxury

ScanWatch Horizon features all the cutting edge tech of the original edition outfitted with notable design and material upgrades including a rotating bezel, Luminova indexes and 10 ATM water resistance.

Made to last

Durable luxury

ScanWatch Horizon is the most durable watch ever created by WITHINGS.

  • 5-year warranty
  • 30 days battery life
  • Flat Sapphire Glass
  • 316L Stainless Steel Case
Withings Scanwatch Horizon

Clinically validated

Heart Health Monitoring

Record an ECG at any time thanks to a mirror-polished serrated bezel that acts as an electrode.

Withings | Scanwatch Horizon

Clinically validated

Heart Health Monitoring

Record an ECG at any time thanks to a mirror-polished serrated bezel that acts as an electrode.

Optical heart rate sensor

Day and night the optical heart rate sensor keeps tabs on heart rate but conserves battery life by activating periodically around the clock. Continuous heart rate is activated and recorded when using workout mode.

Proactive rhythm monitoring

ScanWatch monitors heartbeat automatically so it can send notifications if irregular rhythms are detected it will then advise the wearer to record an electrocardiogram (ECG).

Medical-grade SpO2

To deliver the percentage of blood oxygen, or SpO2, ScanWatch uses a multi-wavelength PPG sensor to emit and measure red and infrared reflections of blood vessels in the wrist. Normal SpO2 values vary between 90 and 100%, and readings appear on the watch and in the app.

ECG readings

An ECG is the best way to detect atrial fibrillation (AFib), a highly prevalent heart arrhythmia. AFib often goes undiagnosed because it can show no symptoms and/or not be present during doctor’s visits because the episodes can be intermittent.

Share with a doctor

All heart health data is compiled in the app and can be easily shared with a doctor, health coach, or loved one with a few taps via the Health Report feature.

Sport sessions

Activity Tracking

ScanWatch Horizon seamlessly tracks all your activities, including intense sport sessions. Smart detection and connected GPS give you precise insights.

Water-resistant to 10 ATM (100 m)

Withings | Scanwatch Horizon

Sport sessions

Activity tracking

ScanWatch Horizon seamlessly tracks all your activities, including intense sport sessions. Smart detection and connected GPS give you precise insights.

Step Tracking

Scanwatch Horizon | Withings

With the activity subdial always available at a glance, ScanWatch helps you know where you stand with your daily step goal. A 3-axis accelerometer and a decade of algorithm improvements allow you to enjoy the most accurate results.

Automatic Activity detection

Health Mate | Withings
Health Mate App | Withings

Take a swim, commute by bike, or go for a run—ScanWatch will automatically recognize your activity and log it in the Health Mate app. Get credit for all your moves with no button to press.

Connected GPS

Health Mate | Withings
Health Mate App | Withings

Map your workout sessions and enjoy distance, elevation, and path with Connected GPS.

Workout Mode

Scanwatch Horizon | Withings

Easily activate workout mode right on your wrist by choosing from over 30 sports. This shows your workout duration, and logs heart rate and movement continuously.

In-depth analytics

Advanced Sleep Tracking

ScanWatch Horizon collects numerous data points to measure Sleep cycles, detect breathing disturbances and then calculates your overall Sleep Score—automatically.

Scanwatch Horizon | Withings

Sleep Cycles

ScanWatch tracks your sleep cycles (light and deep), duration of sleep, time to be asleep and wake up as well as interruptions, and logs it in the Health Mate app so you can view your trends.

healthmate app view







Sleep Score

Our exclusive algorithm automatically scores your night based on sleep cycles, duration, regularity and interruptions.

healthmate app view


Smart Wake-up

Because ScanWatch knows if you are in a light or deep stage, it can choose the best time to wake you up according to your schedule. You simply set a wake-up time in the app, and ScanWatch will wake you with a light vibration.

healthmate app view



Respiratory Scan

In addition to analyzing sleep, activating the Respiratory Scan can detect breathing disturbances via the PPG sensor and the accelerometer based on an analysis of blood oxygen levels, heart rate, motion and breathing rate.

Timeless tech

Simple & smart

Health Mate | Withings
Health Mate App | Withings

Companion app

Get insights, advice and more on your iOS or Android device.

Withings | Scanwatch Horizon

Interchangeable bands

Swap instantly between the Oyster Metal and Fluoroelastomer Sport band (included), or change it up with your own wristband.

Withings | Scanwatch Horizon

Digital crown

The new pressable crown enables easy selection and the ability to scroll through features.

Withings | Scanwatch Horizon

Smart Notifications

ScanWatch will vibrate and display a preview of smartphone notifications for the apps you want to hear from.

Developed with cardiologists. Included in several validation studies conducted at renowned hospitals and research institutes.

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1-year warranty

ScanWatch Horizon

Hybrid Smartwatch with ECG, Heart Rate & Oximeter

Compatible with iOS & Android

Metrics tracked


Heart rate: beats per minute

Breathing disturbances: detection via oxygen saturation

Electrocardiogram: tracing of a 30-seconds ECG recording on a millimetric grid

Oxygen saturation level (recreational SpO2)

Walking and running: steps, distance, calories, based on user’s profile for high precision

Calories: metabolic calories and total calories expenditure

Running: automatically detected, in-app daily recap of duration and distance

Swimming: automatically detected, in-app recap with duration and calories burned

Sleep: deep and light sleep phases, irregular heartbeat detection, sleep interruptions

Fitness Level: assessment via VO2Max estimation

Elevation: meters and floors climbed




Bluetooth Low Energy - to sync with Health Mate

Bluetooth connection with location settings permission must be enabled to use the Connected GPS feature


ScanWatch can be installed on a smartphone or a tablet, via the Health Mate app available on iOS (iOS 14 and higher) and Android (8.0 and higher).

Cannot be set up from a computer

View the full compatibility list +



43mm model: 43mm diameter (1.7’’),13,28mm thickness (0.52’’),20mm wristband width (0.78’’), 72g (watch only)


Analog dial with hands for hours and minutes. Subdial displays progress toward daily activity goal in percentage. The PMOLED screen displays SpO2, irregular rhythm and smartphone notifications, heart rate, steps, floors climbed, distance, calories, activities, and settings.

Workout mode displays timer and heart rate(continuous tracking).

Clock menu with alarm, stopwatch and timer.

Notifications display previews of incoming calls, text messages, calendar events and 100+ apps.

Battery life

Single battery charge lasts up to 30 days in normal use

+20 additional days in power reserve mode (time and activity tracking only)

Charging time

Approximately 2 hours to 100%. About 1 hour to 80%


Comes with a stainless steel case featuring a rotating stainless steel bezel, a sunray brass dial with applied stainless steel indexes with luminous coating, brass hands with luminous coating, sapphire glass, a stainless steel wristband, and a durable and water-resistant fluoroelastomer (FKM) wristband

Conditions of use

Water resistant up to 330 feet deep (100 m, 10 ATM)

Operating temperature: -10°C to 45°C (14°F to 113°)

Storage temperature: -20°C to 85°C (4°F to 185°)

Pacemakers and implantable cardioverter defibrillators (ICD) can make ECG recordings inconclusive.


Exclusive multi-wavelength PPG heart rate/SpO2 sensor

Stainless steel electrodes

High precision MEMS 3-axis accelerometer

ScanWatch Horizon

Oyster Metal Link wristband

Additional fluoroelastomer (FKM) wristband

Magnetic charging cable

Quick start guide (English, French, German, Italian, Spanish)

Band toolkit to adjust metal link wristband: pin punch, hammer, and holder