mobile commerce
US /ˈmoʊ.bəl ˈkɑː.mɜːrs/
UK /ˈmoʊ.bəl ˈkɑː.mɜːrs/

1.
the buying and selling of goods and services through wireless handheld devices such as smartphones and tablets
:
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Many businesses are investing in mobile commerce to reach more customers.
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The rise of smartphones has significantly boosted mobile commerce.