Text Message Size

[mahesh]

Is there a maximum size of Text Message that can be sent on a mobile ? In my case an Android Galaxy S9 using Pulse as the messenger. from doing a google it seems the limit might be 160 characters. If this is so I get no indication that a long text is sent until a shorter message is sent out asking if it had been received. The solution presumably is to send several shorter ones.
Some providers will automatically do do this but presumably not giffgaff !