If the laptop is running on a Windows OS, you'll likely be able to find at least some information about the aircard in the Config\Hardware section of the laptop's asset page. SIM card information won't be retrievable though, we'll add a feature request for this.
Regarding tablets, neither iOS nor Android currently have a protocol available through which Lansweeper can retrieve information. This is something we're investigating so we can potentially scan them in the future, though at this point it's still unclear how/if we'll be able to implement it. We've moved your topic to the wishlist section and have added your feedback to our internal feature tracking system.
At this moment in time we can't guarantee that these features will be implemented though and cannot provide you with an estimated release date.