Here in Austin, Texas, I’ve spent years testing and reviewing calculators that promise to make complex math easier. As someone who’s used everything from entry-level Casios to advanced TI models. The HP Prime Scientific Graphing Calculator genuinely surprised me. Its sleek metal body, crisp multi-touch color display, and speed make it feel more like a mini computer than a calculator.
The HP Prime scientific graphing calculator is a strong, up-to-date device that has a colorful multi-touch display and a quick processor, making it suitable for engineering and science classes from high school to university. It is known for its user-friendly design, a built-in Computer Algebra System (CAS), and features that are acceptable for exams.
In the morning, I first tried it in a classroom setting, and I noticed how naturally it handled both symbolic algebra and numerical graphs. The touch interface felt intuitive, pinch, zoom, drag, just like on a smartphone. But I’ll admit, there was a learning curve when diving deep into its CAS (Computer Algebra System). Still, once mastered, it opened doors to a level of precision that made my engineering calculations almost effortless.
Key Features and Specifications
Display: A big 3.5-inch diagonal full-color multi-touch TFT LCD screen with a resolution of 320×240.
Interface: It combines a responsive touchscreen with a familiar HP key layout and supports Algebraic, Textbook, and Reverse Polish Notation (RPN) input modes.
Processor and Memory: The G2 version has a speedy 528 MHz ARM Cortex-A7 CPU, 256 MB of RAM, and 512 MB of flash memory for performing complex calculations and storing data.
Applications: Comes with a set of built-in apps for Advanced Graphing (including 3D), Dynamic Geometry, Statistics, Spreadsheets, and solving equations (HP Solve and HP Equation Writer).
Connectivity: Features a micro USB port for charging and transferring data using the HP Connectivity Kit software. Also, optional wireless connections can be made with the HP Prime Wireless Kit (sold separately).
Battery: A rechargeable lithium-ion battery that lasts a long time and can be charged through USB.
Exam Mode: A customizable “Exam Mode” lets you turn off certain features (like the CAS) to meet standardized test rules, and it is permitted for use during AP and IB exams.
User Reviews and Expert Opinions
The feedback for the HP Prime generally commends its speed, modern look, and advanced functions, although there are some mixed feelings about certain features.
Pros:
Speed and Performance: Users often mention the calculator’s speedy processor and fast graph plotting, particularly when compared to rivals like the TI-84 Plus CE.
Touchscreen Interface: The multi-touch display gets a lot of praise for making it easier to navigate, zoom in on graphs (by pinching), and interact with apps much faster than traditional calculators that only use buttons.
Powerful Math Tools: The built-in CAS and extensive functions for calculus, linear algebra, and statistics are regarded as very good for both students and professionals.
Build Quality: Many users appreciate the stylish, slim, and robust brushed metal design, which feels like a high-quality device.
Cons:
Learning Curve: Some users point out that there is a steep learning curve, particularly for those used to different brands of calculators or older HP models, suggesting that the full user manual can be found online.
RPN Implementation: Users who are fans of the RPN mode feel that it is somewhat added on and lacks some classic stack manipulation features present in older HP calculators.
Error Messages: Occasionally, the calculator receives criticism for vague or unhelpful error messages (like a yellow exclamation point) in the CAS screen.
Where to Buy Online
You can find the HP Prime G2 Graphing Calculator (model 2AP18AA#ABA) available from different online stores. Here are some merchants and their prices:
- eBay – redtagcamera – $159. 95 $177. 90
- Walmart – $155. 95
- Amazon UK – £139. 95
- Ubuy Bangladesh BDT – 27183
Is the HP Prime Scientific Graphing Calculator Good?
Absolutely, especially if you’re serious about math, science, or engineering. I’ve used it during mock SAT prep and calculus sessions, and the speed difference compared to older graphing models was clear. Switching between symbolic, graphical, and numerical modes was seamless thanks to dedicated keys.
For high schoolers preparing for SAT, AP, or IB exams, or college students working through calculus or physics, this calculator delivers both power and style. Its CAS engine solves equations step-by-step. While the 3.5-inch color touch display allows for interactive learning, you can literally move graphs with your finger. That hands-on experience helps connect theory with real-world visualization.
Battery life also impressed me; the rechargeable lithium-ion battery easily lasted through long study sessions without interruption.
What I Like
- Premium build quality: The brushed metal body feels solid and professional, unlike the plastic shells on most graphing calculators. It’s portable yet tough enough for daily classroom use.
- Vibrant multi-touch display: The 3.5-inch color LCD is bright, responsive, and supports touch gestures like zooming and panning, which makes graph manipulation smoother and more interactive.
- CAS functionality: Its Computer Algebra System handles complex algebraic expressions, integrals, and matrix operations flawlessly. For STEM students, it’s a huge time saver.
- Exam compatibility: Approved for SAT, PSAT/NMSQT, AP, and IB exams, which adds peace of mind for U.S. students needing an exam-ready calculator.
- Wireless & app integration: The HP Prime app syncs perfectly with the physical device. It’s great for remote learning or projecting work in classrooms.
What Could Be Better
- Learning curve: At first, the interface can feel overwhelming. A simplified “student mode” or more beginner-friendly tutorials would help new users.
- Price: At around $169, it’s not cheap. But given the hardware power and CAS capability, it still offers solid value for long-term use.
- Software updates: HP could release more frequent firmware improvements and step-by-step learning guides to make transitions smoother for educators.
How We Tested
- Tested during calculus problem-solving and physics simulations to assess speed and accuracy.
- Compared graph rendering times against TI-84 Plus CE and Casio fx-CG50.
- Evaluated screen brightness and touch response in both classroom and outdoor lighting.
- Verified exam compatibility for SAT and AP through HP’s official documentation.
- Assessed app sync performance using HP Prime Mobile App (Windows + Android).
Each test confirmed that the HP Prime performs consistently across high-load math tasks and real academic conditions.
Our Recommendation
If you’re a college STEM major, a high school student preparing for exams, or a teacher looking for a reliable classroom companion, the HP Prime is a smart investment. Its CAS, color touchscreen, and strong app ecosystem make it one of the most advanced calculators available today.
However, if you’re only tackling basic algebra or pre-calculus, a more affordable non-CAS model like the HP 39gs or TI-84 Plus CE might be a better fit.
For serious learners and professionals, though, the HP Prime is like the Tesla of graphing calculators, sleek, fast, and packed with tech that pushes your learning curve forward.
HP Prime Scientific Graphing Calculator Tested Review
As a calculator expert who’s tested dozens of models over the years, from basic Casio scientifics to advanced TI graphing units, I was genuinely intrigued by the HP Prime Scientific Graphing Calculator. Its blend of modern touch features and professional-grade computing made me curious about how it performs in real academic and engineering use.
What I struggled with at first was its learning curve. The interface felt dense when I started using the CAS (Computer Algebra System). It took time to get comfortable with the menus and gestures. But once I did, it felt like unlocking a digital math lab in my hands. Still, I wish HP added simpler onboarding steps or a more intuitive beginner mode to smooth out that early experience.
After several months of use in both classroom simulations and college-level math problems, I can confidently say this is one of the most powerful and future-ready graphing calculators HP has ever built.
Real Experience with the HP Prime
When I first used the HP Prime during a calculus review session in Austin, Texas, it instantly stood out. The 3.5-inch multi-touch color display felt vivid and modern, like having a small tablet dedicated to math. I loved being able to pinch, zoom, and drag graphs directly with my fingers.
The CAS functionality handled complex algebraic and calculus problems faster than most TI or Casio competitors. It made integration, differentiation, and matrix calculations simple. But as smooth as it was, I noticed some functions weren’t as beginner-friendly, especially when programming or navigating nested menus.
Problems I Faced
Even though this calculator packs serious power, I ran into a few issues worth noting:
- The interface can feel a bit cluttered for first-time users.
- Some CAS functions require specific syntax, which can frustrate new users who are used to more straightforward graphing models.
- The price (around $169) may feel steep for students on a budget.
Still, these issues are minor when compared to the overall experience, and most can be solved with time and familiarity.
Solution
Once I started exploring HP’s online guides and community forums, things became easier. The HP Prime Mobile App was also a huge help. It mirrors the calculator’s interface, making practice and learning faster.
For teachers or students, pairing the calculator with the HP Wireless Kit turns it into a collaborative classroom tool; you can share screens, poll students, and exchange data in real time. This makes the HP Prime not just a calculator, but a full STEM learning platform.
Alternative Options: HP
As a calculator expert, I have used several brands in the last 22 years. I’ve seen calculator technology change so much, especially with graphing models. The HP Prime Scientific Graphing Calculator is a strong, modern choice. It has a touch screen and a powerful Computer Algebra System (CAS). Still, it is smart to see what other top graphing options are out there.
Scientific Graphing Calculator
A scientific graphing calculator is a must-have for high school and college math. It helps visualize functions and solve advanced problems. Over the years, I have found that a bright screen and fast processing power save so much time. The HP Prime is a fast option, but the screen feel is key.
| Feature | HP Prime | TI-84 Plus CE | Casio fx-CG50 Prizm |
| CAS Function | Yes (Can be disabled) | No | No |
| Display | Multi-Touch Color LCD | High-Res Color LCD | High-Res Color LCD |
| Rechargeable Battery | Yes | Yes | Yes |
| Exam Approval | SAT, IB, Select AP | SAT, ACT, IB, AP | SAT, ACT, IB, AP |
| Best Feature | Touch screen, powerful CAS | Most popular, easy to use | High-resolution 3D graphing |
| My Rating (Out of 10) | 9.0 | 8.5 | 8.5 |
The HP Prime Scientific Graphing Calculator is the most modern choice with its touch screen. The TI-84 is the most common calculator in US schools. The Casio is a strong choice for visual graphing.
Graphing Calculator
When picking a graphing calculator, you need to decide if you want a CAS feature. A CAS can solve algebraic problems symbolically. This is often banned on high school exams like the ACT. I have seen students forget to disable the CAS on the HP Prime, which can be an issue. Always check your test rules first.
| Feature | HP Prime | TI-Nspire CX II-T CAS | TI-89 Titanium |
| CAS Function | Yes (Toggle) | Yes (Always on) | Yes (Always on) |
| Display | Multi-Touch Color LCD | High-Res Color LCD | Monochrome LCD |
| Exam Approval | SAT, IB, Select AP | SAT, IB, Select AP | Banned on ACT, most AP |
| RPN Support | Yes | No | Yes |
| Best Feature | User-friendly interface, speed | Great for calculus, powerful | Classic RPN, deep features |
| My Rating (Out of 10) | 9.0 | 9.0 | 7.0 |
The HP Prime gives you the choice to use or disable the CAS feature. The TI-Nspire is a powerhouse for advanced math. The older TI-89 is still popular but often not allowed on tests.
HP Graphing Calculator
For those who love the HP brand, there are a few options outside of the new Prime model. I appreciate that all HP graphing calculators offer the RPN entry system, which is fast once you learn it. The older models are known for their great build quality. The HP Prime is the clear winner for modern features and color display.
| Feature | HP Prime | HP 50g | HP 48gII |
| Display | Multi-Touch Color | Monochrome | Monochrome |
| CAS Function | Yes (Toggle) | Yes (Always on) | Yes (Always on) |
| Touch Screen | Yes | No | No |
| Memory (Flash) | 256 MB | 2 MB | 2 MB |
| Best Feature | Modern interface, fast processor | Very deep library, reliable | Strong for engineers, solid build |
| My Rating (Out of 10) | 9.0 | 7.5 | 6.5 |
The HP Prime Scientific Graphing Calculator is the top choice for modern use. Also, the HP 50g is a classic for engineers. The HP 48gII is a decent, older CAS option.
Final Verdict
The HP Prime Scientific Graphing Calculator is a brilliant mix of power, design, and educational flexibility. It’s ideal for high schoolers preparing for SAT, AP, or IB exams, and for college students or engineers who want more than a basic calculator.
It’s not perfect; the setup curve and price could be better, but its performance, touchscreen interface, and CAS capabilities make it one of the most advanced calculators of 2025. Once you learn its rhythm, it becomes more than a calculator; it’s a companion for every tough equation you’ll face.
If you want speed, accuracy, and modern tech in one compact device, the HP Prime is well worth the investment.
FAQs
Yes, the HP Prime is still in production. It is now made and sold by new licensees.
Yes, the HP Prime has a Computer Algebra System (CAS). You can turn this feature on or off easily.
Yes, the HP Prime has a multi-touch color display. You can use the touch screen for easy input and navigation.
The best calculator for you depends on your needs. For advanced classes, a powerful model like the HP Prime is great. For basic math, a simple scientific model is fine.
The HP Prime is generally seen as the best HP calculator today. It is powerful and has a color touch screen.
Yes, most popular graphing calculators are programmable. This lets users write programs for complex tasks.
Yes, the HP Prime calculator is allowed on the SAT exam. It is approved for use on this test.
Look for a dedicated button like “PRGM,” “Prog,” or “EXE.” Programmable calculators also keep stored formulas after you turn them off.
Yes, the HP Prime graphing calculator is highly programmable. It uses a special programming language called HP PPL.
A scientific calculator does complex math problems. A graphing calculator is a scientific one with a large screen. It can also draw graphs of functions.
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