Review – Withings ScanWatch Horizon

Withings ScanWatch Horizon

Unboxing and Features

Test of the connected watch Withings ScanWatch Horizon

After offering you the test of the ScanWatch, already very convincing, we wondered what the model still above was worth. It is with this idea in mind that we asked Withings a copy of his connected watch top of the line. Guess what ? The ScanWatch Horizon is beautiful and well arrived in our mailbox. So let’s see what the brand offers us with this product still displayed at €499.95 !

So, what is it worth on a daily basis? We give you our full review.


Our ScanWatch Horizon therefore arrives in a pretty white box on which we find an illustration of the watch. However, the first element put forward by Withings concerns the clinical validation of the product as well as the very long autonomy of the product. Just like the ScanWatch previously tested, there is also talk of 30 days of autonomy. Unfortunately, given the duration of the loan, we will not be able to confirm this statement or not.

On the back of the box, Withings highlights a whole bunch of features related to measuring your health. We therefore learn that the watch measures sleep activity and is capable of detecting sleep apnea, for example. Ditto, it analyzes the heart rate while being able to identify variations in heartbeat or atrial fibrillation. Finally, we learn that it embeds electrocardiogram functions, measurement of oxygen saturation, that it has a gps tracker to measure physical activity, etc. etc Especially since it will be waterproof up to 100 m, ideal for swimming or divers!

Of course, to take full advantage of these features, you will have to go through the application. HealthMate. We are therefore invited to download it via the various blinds of mobile applications.

Upon opening, we notice that the watch is particularly well packaged since it rests in a black foam compartment. On the side, the accessories part is covered by an envelope containing the manuals of the ScanWatch Horizon. By removing it, we can discover the accessories part which frankly seems very complete. Let’s see what the brand has to offer here!

For once, this accessories part is really very complete since in addition to the instructions, we will find the recharging base, logical. However, Withings provides an additional blue rubber strap, much less classy than the steel one if you ask me. With this, we find a mallet with a pin punch, a bracelet extension and a wedge. As you will have understood, the goal is to be able to enlarge the steel bracelet of the watch yourself or not. ScanWatch Horizon.

Technical characteristics

Vital parameters

  • Heart rate: Beats per minute
  • Respiratory disturbances: detection by oxygen saturation, measurement of heart and respiratory rates and analysis of movements.
  • Electrocardiogram: recording of a 30-second D1 ECG plotted on a millimeter grid
  • Blood oxygen saturation level (medical SpO2)
  • Walking and running: steps, distances, calories | based on user profile for accuracy
  • Calories: metabolic calories and total calorie expenditure
  • Race: automatic detection and daily summary of duration and distance within the application
  • Swimming: Automatic detection | Duration and Calories
  • Sleep: deep and light sleep phases, oxygen levels, detection of irregular heartbeats, sleep interruptions
  • Cardio fitness index: evaluated from the VO2Max estimate
  • Elevation: meters and floors climbed



  • Bluetooth Low Energy – for synchronization with Health Mate
  • The connected GPS function requires the Bluetooth link with the smartphone and the activation of the location.

Required configuration

  • ScanWatch can be installed on a smartphone or tablet via the Health Mate app, available for free on iOS (14+) and Android (8+).
  • The installation cannot be done on a computer.


  • 43mm model: 43mm in diameter, 13.28mm thick, strap 20mm wide, 72g (watch without strap).


  • Analog clock with hands indicating hours and minutes. The sub-dial shows the progress against the daily goal in percentage. PMOLED display shows ECG, SpO2, atrial fibrillation notifications, smartphone notifications, heart rate, step count progress, elevation, floors climbed, distance traveled , calories burned, activity and settings.
  • Training Mode displays a stopwatch and heart rate (continuous).
  • The “Clock” menu provides access to an alarm, a stopwatch and a timer.
  • The screen displays notifications of incoming calls, text messages, calendar events and more than 100 applications.


  • Up to 30 days for normal use.
  • + 20 additional days in reserve mode (time and activity tracking only).

Loading time

  • About 2 hours for 100% charge. About 1 hour for 80% charge.


  • Stainless steel case with stainless steel rotating bezel, sunburst finish brass dial with luminous coated stainless steel applied indexes, luminous coated brass hands, sapphire crystal, stainless steel strap and durable fluoroelastomer (FKM) strap and waterproof.

Terms of use

  • Waterproof up to 100m deep
  • Operating temperature: from -10°C to 45°C
  • Storage temperature: -20°C to 85°C
  • Pacemakers and implantable cardioverter defibrillators (ICDs) can render ECG recordings inconclusive.


  • Proprietary multi-wavelength PPG heart rate and SpO2 sensor
  • Stainless steel electrodes
  • High-precision 3-axis MEMS accelerometer