GreatCall Jitterbug5 User Manual page 216

With the "Automatic Update" function enabled (as in the default setting in the
System Update menu in the Setting), your device downloads some Updates
automatically from time to time. Your device will, however, ask for your consent
before installing any Update If you choose to disable the "Automatic Update"
function, then you can check the availability of new Updates by clicking on the
"Check Update" menu in the Setting. We recommend that you check availability
of any new Updates periodically for optimal use of your device. If you want
to avoid any use of network data for the Update downloads, then you should
choose the "Wi-Fi Only" option in the Setting. (Regardless of the option you
choose, the "Automatic Update" function downloads Updates only through Wi-Fi
connection.)
6. Some features of the Software may require your device to have access to
the internet and may be subject to restrictions imposed by your network or
internet provider. Unless your device is connected to the internet through Wi-Fi
connection, the Software will access through your mobile network, which may
result in additional charges depending on your payment plan. In addition, your
enjoyment of some features of the Software may be affected by the suitability
and performance of your device hardware or data access.
The Fine Print 207