Product Comparison: Texas Instruments TI-89 vs Texas Instruments TI-Nspire CX

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General Specifications
Texas Instruments
Texas Instruments
TI-Nspire CX
About the Product
TI 89 Graphing Caclulator. The most advanced TI Graphing Handheld. Ideal for calculus! Now includes USB cable for computer connectivity. 4 AAA batteries. Back-up lithium battery. CBL2 and CBR compatible.
The TI-Nspire™ CX handheld is a robust, hands-on learning tool that satisfies math and science curriculum needs from middle school through college.
Size & Weight
7.2 in.
7.5 in.
3.5 in.
3.42 in.
1 in.
0.62 in.
12 oz.
7.04 oz.
What customers say about "Size & Weight"
Texas Instruments TI-89 Graphing Calculator
  • It ia not too bulky and easy ta handle.
  • Smaller, lighter, compact and easy to use.
  • Calculator easy to use/ I take it at school in my backpack.
  • I know graphing calculators are big, but wow! It doesn't fit in my pockets, that's for sure! I usually stick it in my backpack or in my cargo pockets on days when I have those kinds of pants.
Texas Instruments TI-Nspire CX Graphing Calculator
  • This is absolutely what i needed and for the price it is affordable. the right size and easy to use.
  • I bought it for my middle school child, probably a bit more than what she needs now but plan is for her to get comfortable with keys and functionality ahead of college entry exams.
  • I understand cutting back on weight a little as the original ti-nspire is a brick to hold, but it fits well in your hand and it feels like it will last me a lifetime.
  • Smaller, lighter, compact, but not unmanageable for my nimble fingers
  • Works fine. Used at PSAT. Just wish it was a little more compact in size.
Display Type
Display Size
2x3 in (100 x 160)
3.5 in (320 x 240 pixels)
Touch Screen
Display Resolution
125 dpi
What customers say about "Display"
Texas Instruments TI-89 Graphing Calculator
  • The screen also has sufficient contrast to use in most lighting conditions.
  • The only thing that I've never liked is that the letters in the screen are way too little, it takes time to get used to it.
  • the small text size and lack of a backlight make it extremely difficult to use.
  • he screen is small though and the text size small; really strains the eyes when working late.
Texas Instruments TI-Nspire CX Graphing Calculator
  • Easy to use calculator with many great features. The display is very clear and easy to view.
  • The best graphing calculator ever. You should buy it. Nice color display, nice feature and I'm not kidding.
  • Bought for my daughter in high school, she was quite impressed with how easy it was to use, and with the color display.
  • The display is readable. The keys are crisp and the system is intuitive. I give it the geezer seal of approval!
  • Love the color display and save your work capability.
Internal Memory
0.384 MB
100 MB
188 KB
64000 KB
PC Connectivity
Battery Type
4 x AAA Batteries
Rechargeable Battery
Pre-Loaded Applications
CellSheet, Spreadsheet
Calculator, Graphing, Geometry, Lasts and spreadsheets, Data and statistics, Notes, Vernier DataQuest™ Application
Symbolic differential equation solving, Graph in 2D or in 3D with real-time rotations, Perform linear algebra operations, Split screen shows you two applications at once, Over 100 symbolic units to use in equations, computations, and unit conversions, Twenty constants including: speed of light, molar gas constant, Planck's constant, Avogadro's number and more
Multiple Representations, Dynamic Linking, Make Real-World Connections, Enter Values In Proper Notation, Click, Scroll, Create and Save Like a computer, TI-Nspire™ CX CAS Student Software, Recharge, Don’t Replace For Years, A Complete Learning Resource
What customers say about "Features"
Texas Instruments TI-89 Graphing Calculator
  • This calculator is a must have if you are taking a college level calculus course. Taking derivatives is super simple as well as all of the other functions this calculator has to offer.
  • Easy to use. Updatable and has a lot of free apps.
  • Calculus is easy for this graphing calculator. It finds derivative, limits and tons of other calculus.
  • It can graph piecewise functions which is helpful. It can factor and solve quadratics, quartics and higher.
  • It is a toy because of the lack of speed and memory.
Texas Instruments TI-Nspire CX Graphing Calculator
  • Works great but takes a while to get used to and familiar with all the applications. Half of it I don't use yet. Love the memory feature and it's capacity.
  • I had this products for a few months now and the I have charged the battery once and it lasted me a while month, while I was using 8t every day. Great product.
  • User friendly, great design, functionality and battery life.
  • This is what's required by the school ..seems to be easy to use and battery last a long time
  • Works great. No issues with software. Battery last a long time.
  • This is my second. Battery went out after a year on the first. Only bought a second one because this is the model my daughter has to have for school.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
1 year(s)
Other Information

Price History

Other reviews