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The touted advantages of the TI-89 Titanium over the original TI-89 include four times the available flash memory ( with over three times as much available to the user ).

The TI-89 Titanium is essentially a Voyage 200, except it doesn't have an integrated keyboard.

The TI-89 Titanium also has a USB On-The-Go port, for connectivity to other TI-89 Titanium calculators, or to a computer ( to store programs or update the operating system ).

The TI-89 Titanium also features some pre-loaded applications, such as " CellSheet ", a spreadsheet program also offered with other TI calculators.

The Titanium has a slightly updated CAS, which adds a few more mathematical functions, most notably implicit differentiation.

The Titanium also has a slightly differing case design from that of the TI-89 ( the Titanium's case design is similar to that of the TI-84 Plus ).