Quick verdict
- The safest pick for high school. Teachers, textbooks, and YouTube tutorials all assume a TI-84.
- Approved for the SAT, PSAT, ACT, AP, and IB exams.
- Color screen and a rechargeable battery fix the two biggest gripes about older TI-84s.
- You pay a brand tax. Casio and NumWorks do the core math for less.
- Engineering students will outgrow it. Look at the TI-Nspire CX II instead.
Specs
| Spec | TI-84 Plus CE |
|---|---|
| Released | 2015 (Python Edition later) |
| Display | 2.8" color LCD, 320 × 240, backlit |
| Memory | ~149 KB free RAM, 3 MB flash |
| Power | Rechargeable battery, USB charging |
| Battery life | Up to ~1 month typical classroom use |
| Programming | TI-Basic; Python on Python Edition |
| CAS | No |
| Exams | SAT, PSAT/NMSQT, ACT, AP, IB |
| New price | ~$95–$160 (varies by color, retailer, sales) |
| Used price | ~$45–$60 typical (median ~$53) |
Why it's still here
The TI-84 Plus CE came out in 2015. In consumer tech terms that is ancient. In calculator terms it is the current model, and that tells you most of what you need to know about this market.
Texas Instruments has dominated school calculators for decades. TI itself has claimed a large majority share of the education market, and in US high schools the TI-84 family is the default. Not because it is the best hardware, but because the whole classroom ecosystem is built around it.
What you get
The CE fixed the two things everyone hated about the older TI-84 Plus: the dim monochrome screen and the stack of AAA batteries.
- A 2.8-inch, 320 × 240 color backlit screen. Graphs are readable, and you can color-code multiple functions.
- A rechargeable battery that charges over USB. In normal classroom use it lasts weeks between charges.
- It is thinner and lighter than the old brick-style TI-84s.
The Python Edition adds a Python programming environment. For most students, the regular CE is enough. If a computer science or robotics class is in the plan, the Python Edition is worth the small premium.
Pricing: new and used
New prices swing a lot. Expect roughly $95 to $160 depending on color, retailer, and whether you catch a back-to-school sale. July and August are the time to buy.
Used units are a strong deal. Across 173 used units sold on eBay between April and October 2026, the middle half went for $45 to $60, with a median of about $53. Check that the battery holds a charge and that the screen has no dead lines.
Exam approval and classroom reality
The TI-84 Plus CE is approved for the SAT, PSAT/NMSQT, ACT, AP, and IB exams. It has no computer algebra system (CAS), which is exactly why it is allowed everywhere.
One wrinkle for 2026: the digital SAT has a built-in Desmos calculator, and the online ACT has an on-screen calculator too. Many students still bring a physical calculator because they practiced on it, and paper-based tests still require your own.
The bigger reason to buy a TI-84 is the classroom. Teachers demo on it. Worksheets reference its menus. Every "how do I do a regression" tutorial on YouTube uses one. That support is worth real money to a struggling student.
Alternatives
- Casio fx-9750GIII: covers the same high school math for much less, but no color screen and fewer tutorials.
- NumWorks: a cleaner, more modern interface at a similar price.
- TI-Nspire CX II: more power, more memory, a steeper learning curve. Better for advanced STEM.
Our take
If you're buying for a high schooler and you don't know what the teacher uses, buy the TI-84 Plus CE. It isn't the best value on paper. It's the one least likely to cause a problem in October, when the class hits statistics and every screen at the front of the room looks like this one.
Buy it used if you can. At a median of about $53, a used CE is the exact same calculator for roughly half the price of new.
Yes, especially if a teacher or class requires it
The TI-84 Plus CE is not the most powerful or the cheapest calculator you can buy. It is the one that removes friction. When the teacher says "press 2nd, then TRACE," this is the calculator those instructions were written for. If budget is tight, buy one used. If the student is headed into engineering, skip ahead to the Nspire.
Where to buy
Prices change often. Check the current price before buying. Some links are affiliate links, which never change our verdicts.
FAQ
Is the TI-84 Plus CE allowed on the SAT and ACT?
Yes. It is approved for the SAT, PSAT/NMSQT, ACT, AP, and IB exams because it has no computer algebra system.
What's the difference between the TI-84 Plus CE and the Python Edition?
The Python Edition adds a Python programming environment. Everything else, including the screen and exam approvals, is the same.
How long does the TI-84 Plus CE battery last?
Typical classroom use gets weeks between charges. It charges over the included USB cable.
Is a used TI-84 Plus CE a good buy?
Usually, yes. They are durable and hold up well. Check that the battery holds a charge and the screen has no dead lines.
