Ran across this cartoon: [Link]
and took a bit of a laugh.
Reason: A charged battery has more mass than an uncharged/discharged battery. (Admittedly we’re talking about wee differences. So don’t try weighing your cellular telephone at home for this.) Hence, since the more apps a phone has the faster the battery discharges, the lower the (time averaged) weight of the phone. So the opposite of the cartoon is actuality.
Now, the question is, does that make or break the funny?