The radar almost certainly is not entirely contained in the pictured assembly. It shows a PCB antenna and some passive components - resistors, capacitors and inductors - but no active components, unless there is a die embedded in the PCB, which I doubt. There is probably an ASIC somewhere else in the phone that is energizing the PCB antenna and processing the received signals. I’d follow the flex traces back from the antenna and passives to see what active device is energizing them.
The buttons are just digital. You can tell from the PCB lands.
Those are just weights, and not motors. Maybe they were a late scratch for cost, or they will add a new more expensive version with the same enclosure. The weight probably makes it feel "better". I know I prefer heavier controllers than those without motors or batteries inside.
Yup. Same thing they do with the RFID tag in the Kindle.
Lorsqu'il en aura reçu, il pourra afficher un graphique de sa réputation au fil du temps.
Voici un aperçu de ce à quoi ressemble ce graphique :
Aucun point de réputation obtenu pour l'instant.