Quality
The quality of this watch is great, you can see that for example in the beautiful box and its design. For example, to adjust the metal strap to your wrist size, there is an accessory to position the strap, a shiny hammer to tap out the pin. A lot of care has been taken.
Installation
The Android (Samsung) installation of the Withings app went very smoothly at first, then it became complicated because a connection had to be made with the Google Health Connect app (saving/synchronizing data). After quite a few screens it finally worked and I'll leave it like that.
Information
You preferably read the results via the app, not so much on the watch itself. This also makes the battery last longer (almost 2 weeks). The app is nicely in Dutch, handy texts about the health functions, clear graphs (also in Dutch), good navigation between the screens. Charging is also fast: from 50% to 100% takes just over half an hour (the app will notify you when it is charged).
No rush
I was naturally inclined to turn on ALL functions immediately and I wanted to see instant results. That didn't work, e.g. the SpO2 measurement always gave an 'inconclusive' result, I was disappointed. But after a night's sleep everything had started up again, even the ECG. Apparently the watch needs some time to collect sufficient data.