Last-Minute SavingsLimited quantities.Shop now

Skip to content
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $169.99

Customer reviews

Rating 4.8 out of 5 stars with 385 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 5.0 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

Pros mentioned filter

Cons mentioned filter

There aren't enough negative mentions yet.
98%would recommend to a friend

Customers are saying

Customers are pleased with the TI-89 Titanium Graphing Calculator's ease of use, describing it as intuitive and having many great functions. Its quality and features are also frequently praised, with users highlighting its reliability and the comprehensive set of tools it offers. Many appreciate the calculator's long battery life, noting that batteries can last for extended periods. Overall, the feedback points to a positive user experience.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 14 Showing 261-280 of 385 reviews
  • Rated 4 out of 5 stars

    Excellent calculator

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This was purchased for my 8th grader and so far we have are happy with the product. We have not used all the features on the calculator yet.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good but fragile

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very versatile tool but its very fragile. I broke it just by accidentally dropping it on the gound from desk.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Perfect for AP Calculus Exam

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Needed for graphing for the exam. Best part of this purchase was buying online & picking it up at the curb at Best Buy in under an hour!

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Amazing Calculator

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought this for my Calculus courses and it has served me greatly. I’m an Engineer major and this calculator is probably one of the best investments I’ve made.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good product but price alittle high.

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good product and my son needs it for college. Price was higher than Amazon but was not yet available on Amazon.

    I would recommend this to a friend
  • Pros mentioned:
    Calculator

    Rated 5 out of 5 stars

    Great Calculator

    |
    |
    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    A lot lighter than when I had the same one in high school. This is an absolute beast of a calculator

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Lots of features.

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product, using for AP Calculus class. Only negative is the background is darker than my older version.

    I would recommend this to a friend
  • Pros mentioned:
    Quality

    Rated 5 out of 5 stars

    Outstanding calculator

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent quality product; this is my second calculator and I strongly recommend it.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Son likes it

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought it for my college aged son. He says it is easier to use than his old graphing calculator of another brand.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Simple yet complicated

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Modern calculator with more than anybody needs. Easy to carry with a good protection cading

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Great Product

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent calculator, great quality and easy to use!

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Reliable and works well

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have bought 4 of the same calculator in the past and they all worked the same and well.

    I would recommend this to a friend
  • Pros mentioned:
    Quality

    Rated 5 out of 5 stars

    Expected from ti

    |
    |
    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Get exactly what you expect, a graphing calculator. Good quality, has been dropped a couple times with no issues.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Excellent calculator

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great companion for high school kids. Has many features and makes solving some problems a piece of cake

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Great calculator for college

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great calculator for all college or school needs. Has every function you will need to get the good grades

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Expensively needed calculator

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Really expensive calculator does what I need it to do for business calculus. Just A LOT to learn...

    No, I would not recommend this to a friend
  • Rated 4 out of 5 stars

    Met expectations

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    No issues, met expectations, bought for daughter's high school, good price.

    I would recommend this to a friend
  • Pros mentioned:
    Calculator

    Rated 3 out of 5 stars

    good calculator

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good calculator but not worth the price only used it for one semester

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Excellent

    |
    |
    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great gift for college student. Very helpful and was actually recommended by the college professor.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Little more difficult to learn to use than TI-84

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Not as user friendly as previous version but gets the job done.

    I would recommend this to a friend