The suitable charger for this camera is a USB charger that is charged via the USB Type-C connection. The camera uses a rechargeable Li-ion battery (7.2 V, 1025 mAh), which is included in the scope of delivery and can be charged via USB. A commercially available USB charger with USB Type-C connection and suitable USB cable is therefore compatible.
Yes and no - you can download the app and connect the camera with Bluetooth and then it will add the location. In practice this rarely works, by the time the connection is established you have already taken 5 photos because otherwise the bird will have flown away. Unfortunately, I also don't understand why the price didn't include a GPS chip.
No, the camera does not have a built-in GPS sensor for geotagging. You can add location data via Bluetooth and WLAN with the Panasonic Image App from your smartphone.
The camera comes with a rechargeable battery (DMW-BLG10E) and a short wrist strap. A charger (DMW-BTC12) is not included because the battery in the camera can also be charged via a USB C charger (or a power bank). A USB-C cable is also not included. I also use a Jupio LUC 0060 charger, which can be used to charge more than just one type of camera battery, including AA batteries. Unfortunately it's not available at digitec, I bought mine in Germany and it's no longer available :( . Too bad, because you can move the charging contacts and it automatically sets itself to ⊕ or ⊖. Unfortunately, the battery is smaller than usual for Panasonic, BLC12 does not fit. However, the camera is very compact.
All SD, SDHC or SDXC cards have the same dimensions. UHS-I and UHS Speed Class 3 are compatible up to 512 MB. I never use cards that big, I prefer two or three smaller ones. I also don't know whether the small battery could hold so many pictures or films.
As far as I know, this WiFi function must first be switched on. It is therefore switched off by default. It can only be used to connect the camera to a smartphone anyway and cannot deal with a "normal" WLAN.