- you can set the update via the app, there are various options for this - GPS also works in the forest, but can of course sometimes have 'dead spots'. The mobile network is then more of a sore point. - Gemstone has 4G standard, which means it has good network coverage. Unfortunately, the little one only had 2G, which is no longer in operation in Switzerland and is increasingly being switched off abroad. I am very satisfied with the device and can therefore recommend it.

I can't say, I haven't tried it.

According to "Copenhagen Trackers", the "Gemstone" can be used in Switzerland, as LTE-M and NB IoT are available in addition to 2G connectivity. As 2G is no longer available in Switzerland, the "Cobblestone", for example, no longer works.

The Gemstone GPS Tracker from Copenhagen Trackers does not work on 2G network technology. Instead, it utilises modern GPS and communication technologies that allow it to operate without monthly fees. It probably uses higher generations of mobile phone technology, although the exact network technology (e.g. 3G, 4G or even LTE-M) is not explicitly stated in the quotes provided.