I want to use icons to represent whether you got an smartphone or just an old-fashioned phone in a web form.
What icons may be recognized by all people for this?
Ps. I can use a tooltip.
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Smartphone: Rounded rectangle with little blocks on them (like iphone, android etc)
Dumbphone: Rounded rectangle with a square screen at top, numbers at bottom, and antenna protruding at the top.
Check what the guys at Yummygum made for the iconsweets2 series. They have several variations of the phone icon: