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For most students who need a conventional, non-CAS graphing calculator, the TI-84 Plus CE is a sensible starting point. The TI-84 Evo is another current TI option; the TI-Nspire CX II family suits students who need its documented advanced-course capabilities, including a CAS variant; and the Casio fx-CG50 stands out for documented 3D graphing and other built-in math tools. These are feature-based recommendations, not winners from hands-on testing or a measured market ranking. Before buying, confirm that the exact model and variant meet the student’s course and exam rules.
Which graphing calculator should you buy?
Choose based on the student’s course, exam policy, and the features they will actually use. The models below are current options documented by their manufacturers, but no one calculator is best for every student.
| Model | Best fit | Documented highlights | Important distinction |
|---|---|---|---|
| TI-84 Plus CE | Students seeking a familiar TI non-CAS model | Backlit color display, rechargeable battery, 3.0 MB available memory, and TI-Basic programming | Only the Python version has Python programming, according to TI. |
| TI-84 Evo | Students considering a current TI option with Python programming | Backlit color display, rechargeable battery, Python programming, and broad course coverage | Check with the teacher which model and interface the class supports. |
| TI-Nspire CX II or CX II CAS | Students needing the capabilities TI documents for its advanced-course family | More than 90 MB of memory, backlit color display, and rechargeable battery | The CAS model has CAS; TI indicates CAS can be disabled. Check rules for the exact variant. |
| Casio fx-CG50 PRIZM | Students who value 3D graphing and a broad set of built-in tools | Color display, 3D graphing, interactive geometry, MicroPython, probability simulation, and spreadsheets | Casio Canada lists four AAA batteries and approximately 140 hours of battery life; that is a regional manufacturer estimate, not a measured guarantee. |
| Casio fx-9750GIII | Students comparing a simpler Casio option | Monochrome display, four AAA batteries, and 3 MB storage, according to Casio Canada | The available sources do not establish a current cross-brand price or overall value ranking. |
TI’s feature information is in its Graphing Calculator Comparison Chart. Casio’s specifications are in its US calculator buying guide and Canadian calculator comparison.
What to know about each option
TI-84 Plus CE: a non-CAS TI choice
TI lists a backlit color display, rechargeable battery, 3.0 MB available memory, and TI-Basic programming for the TI-84 Plus CE. It is listed for several school courses and in TI’s SAT, AP, PSAT/NMSQT, ACT, and IB Diploma Programme categories. TI notes that exam policies can change, so those categories are a starting point—not a guarantee for a particular test administration or local requirement. Python programming is available only on the Python version of the TI-84 Plus CE.
#1 Best Overall
- Makes understanding math and science topics quicker and easier — ideal for middle school through college
- Built-in MathPrint feature allows you to input and view math symbols, formulas and stacked fractions exactly as they appear in textbooks
- Graph in vibrant colors to make faster, stronger connections. Powered by a TI Rechargeable Battery that can last up to one month on a single charge.
- 4-year subscription for the TI-84 Plus CE online calculator included with purchase
- Lightweight yet durable enough to withstand the demands of the classroom year after year
TI-84 Evo: another current TI option
TI’s comparison chart lists the Evo with a backlit color display, rechargeable battery, Python programming, and broad course coverage. The College Board’s AP Precalculus calculator page also names the TI-84 Evo on its list current as of July 2026. Model familiarity and availability vary, so students should compare the Evo with what their teacher uses or expects.
TI-Nspire CX II family: distinguish CAS from non-CAS
TI lists more than 90 MB of memory, a backlit color display, and a rechargeable battery for both the TI-Nspire CX II and TI-Nspire CX II CAS. The CAS variant adds computer algebra system capability; TI’s comparison chart indicates that CAS can be disabled. College Board includes both series on its AP Precalculus list current as of July 2026. That inclusion applies to that exam’s list and should not be generalized to other tests.
Rank #2
- Color Screen. The screen size is 320 x 240 pixels (3.5 inches diagonal) and the screen resolution is 125 DPI; 16-bit color
- Rechargeable battery included. Can last up to two weeks on a single charge
- Handheld-Software Bundle. Includes the TI-Inspire CX Student Software delivering enhanced graphing capabilities and other functionality.
- Thin Design and lightweight with easy touchpad navigation.Quick alpha keys
- Six different graph styles and 15 colors to select from for differentiating the look of each graph drawn
Casio fx-CG50: documented 3D graphing and more
Casio America describes the fx-CG50 PRIZM as having a 3.17-inch diagonal full-color backlit display and 16 MB of storage, alongside interactive geometry, MicroPython, probability simulation, spreadsheets, and 3D graphing. Casio also lists Exam Mode with a 12-hour time lock. Casio Canada lists four AAA batteries as the main power source and approximately 140 hours of battery life; treat that as a regional manufacturer estimate, not a guarantee or independent test result. The FX-CG-50 appears on College Board’s AP Precalculus list current as of July 2026.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchCasio fx-9750GIII: a more basic Casio alternative
Casio Canada lists a monochrome display, four AAA batteries, and 3 MB of storage for the fx-9750GIII. Casio America also includes it among its high-school calculator options. The available product information supports comparing its feature set with the fx-CG50, but does not establish a current street price or cross-brand value verdict.
Rank #3
- USER-FRIENDLY DISPLAY – Natural Textbook Display℠ shows expressions and results exactly as they appear in textbooks, simplifying writing and interpreting complex math.
- STUDENT FRIENDLY - Combines ease of use with advanced functionality—ideal for courses from Pre-Algebra to AP Statistics. Supports graph plotting, vectors, probability distributions, spreadsheets, eActivities, integrals, and more for a full range of math and science applications.
- PYTHON INTEGRATION – Program with MicroPython directly on the calculator, or connect to a PC to transfer, store, or share your programs.
- EXAM-APPROVED – Approved for use in AP, SAT, ACT, IB, and other standardized exams, making it a reliable choice for students.
- USB CONNECTIVITY: Easily store and transfer files to and from a computer using the included USB cable.
Check course and exam rules before buying
A calculator that is allowed for one course or test may not be permitted in another. The College Board’s AP Precalculus calculator information says its list is current as of July 2026 and names models from TI, Casio, HP, and other brands. Use the policy for the specific exam you plan to take, and recheck it close to exam day. TI likewise warns on its comparison chart that policies may change.
- Ask the teacher or check the syllabus. Confirm which models are supported in the class and whether any feature is restricted. Casio advises checking school, course, and state testing requirements in its calculator buying guide.
- Look up the exact exam policy. Use the current official rules for that exam—not a manufacturer’s broad test-category chart alone.
- Match the exact model and variant. Confirm the full model name, including whether it is a Python edition or a CAS-capable version.
- Resolve CAS requirements explicitly. Ask whether symbolic algebra is required, allowed, or prohibited. Do not assume that a CAS-capable model is accepted just because a different test permits it or CAS can be disabled.
Compare the features that affect day-to-day use
Display and graphing
TI lists backlit color displays across the TI models discussed here. Casio documents a full-color backlit display and 3D graphing on the fx-CG50; its fx-9750GIII is listed as monochrome. Consider whether 3D graphs or other specialized tools are part of the student’s assignments rather than choosing by display color alone.
Rank #4
- Newest in the TI-84 series: Built for everyday classroom use
- Icon-based home screen: Popular math tools are front and center for faster, more intuitive navigation
- 3x faster performance: A powerful processor delivers quicker calculations and smoother graphing
- Bigger, clearer graphs: 50% more graphing space makes it easier to see patterns and relationships
- Simplified keypad design: Larger buttons and reduced clutter help you work faster with fewer steps
Programming and built-in tools
TI lists TI-Basic programming for the TI-84 Plus CE and Python programming for its Python edition and the TI-84 Evo. Casio documents MicroPython, interactive geometry, probability simulation, and spreadsheets on the fx-CG50. A feature’s presence does not establish that it is needed or allowed for a particular class or exam.
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TI lists rechargeable batteries for the TI-84 Plus CE, TI-84 Evo, and both TI-Nspire CX II variants. Casio’s Canadian comparison lists four AAA batteries for the fx-CG50 and fx-9750GIII; for the fx-CG50 it gives an approximate 140-hour figure. TI lists 3.0 MB available memory for the TI-84 Plus CE and more than 90 MB for the TI-Nspire CX II models; Casio lists 16 MB storage for the fx-CG50 in its US guide and 3 MB for the fx-9750GIII in its Canadian comparison. These are manufacturer-published figures, and memory terms and specifications may not be directly comparable across brands.
Interface and budget
Ask which interface is used in class and whether the teacher can help a student learn the chosen model. The available product information does not quantify learning time or classroom prevalence. Prices also vary by retailer, region, and bundle; compare current local offers rather than relying on an unsupported cross-brand price ranking.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
