Product Comparison: Texas Instruments TI-89 Titanium vs Texas Instruments TI-84 Plus

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General Specifications
Texas Instruments
Texas Instruments
TI-89 Titanium
About the Product
This versatile graphing calculator features advanced functionality and 3-D graphing that makes problem-solving for AP*, advanced mathematics and engineering courses easier. Built-in Computer Algebra System (CAS) allows you to explore and manipulate mathematical expressions in symbolic form. Where to Buy
The TI-84 Plus graphing calculator is ideal for high school math and science. Its MathPrint™ feature engages students by enabling them to enter fractions and equations in proper notation so they see it on the display exactly as it’s printed in text and on the board.
Size & Weight
7.5 in.
7.79 in.
3.3 in.
6.06 in.
0.9 in.
1.34 in.
10.2 oz.
10.23 oz.
What customers say about "Size & Weight"
Texas Instruments TI-84 Plus Graphics Calculator
  • Very light weight but not to the point that it feels fragile.
  • Amazing size, comfortable in the hand and nice to use.
  • It is easy to carry with you because it does not weigh too much.
  • Finally the colour scheme and font type and size is difficult to read: Colours need to reflect light, not absorb it and font sizes should be larger.
  • Its size does not allow it to be a highly portable pocket unit but it is not designed for that anyways.
Display Type
Display Size
2x3 in (100 x 160)
96 x 64 pixels
Touch Screen
What customers say about "Display"
Texas Instruments TI-84 Plus Graphics Calculator
  • It has a nice size display and big tactile buttons. Make sure to read the instructions and play with it otherwise you won't be able to perform certain operations.
  • The display is clearer to follow due to the usage of modified symbols and text sizes, and the scrollback feature to grab prior results or formulas is a must-have.
  • The calculator is very good for scientific work. I like the large display.
  • Calculator with small, low resolution black and white screen and a fraction of processing power of today's phones, music players, tablets etc.
  • My only complaint is how hard it is to read the screen in low lighting, but that's expected with the kind of display this product uses.
Internal Memory
2.7 MB
0.48 MB
188 KB
24 KB
PC Connectivity
Battery Type
4 x AAA Batteries
4 x AAA Batteries
Pre-Loaded Applications
CellSheet™, EE*Pro®, Finance, NoteFolio™, Organizer, Polynomial Root Finder, Simultaneous Equation Solver, StudyCards™, Symbolic Math Guide
Cabri™ Jr. App, Catalog Help, Conic Graphing, inequality graphing, LearningCheck™, Probability Simulation, Science Tools, StudyCards™, Topics in Algebra 1, Transformation Graphing, Vernier EasyData
Real and complex numeric results, Over 100 symbolic units in 28 categories for use in equations, computations and unit conversions, Internal Clock with date and time display, I/O port for communication with other TI products, Active Calculator Home history screen can hold up to 99 previous entries for deep recall., TI Connectivity Cable and TI Connect™ software, Numeric evaluation of functions in tables and data variable format, Icon desktop that allows easier access to apps and editors
8-line by 16-character display, Impact-resistant slide case, TI Connectivity Cable included, Supports TI-Basic and ASM programming, App SDK available, TI-SmartView™
What customers say about "Features"
Texas Instruments TI-84 Plus Graphics Calculator
  • This calculator has made my work so much easier. It is a little big in size but does an awesome job and more. Highly recommend it.
  • Its memory is also useful for making very precise calculations.
  • I think its memory functions are what make it so useful. I may have a few equations that I use all the time during a semester.
  • We have not downloaded any apps yet but they look very useful. The amount of ram and archive memory is nice too.
  • There is a tiny battery in the calculator. I thought it was a back-up battery in case the main batteries went out but looked a little too small for any kind of real work.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
1 year(s)
Other Information

Price History

Other reviews