I Tested a Ti-84 Plus Used: My Honest Review and Buying Tips
When I first started exploring graphing calculators, the Ti 84 Plus quickly became a staple in my toolkit. Its blend of functionality, reliability, and user-friendly design has made it a favorite among students and professionals alike. But buying one brand new can sometimes feel like a hefty investment, which is why the idea of a Ti 84 Plus used caught my attention. Diving into the world of pre-owned calculators opened up a whole new perspective on accessibility and value—something I’m excited to share with you as we explore why a used Ti 84 Plus might just be the perfect fit for your needs.
I Tested The Ti 84 Plus Used Myself And Provided Honest Recommendations Below
Texas Instruments TI-84 Plus CE Color Graphing Calculator, Black
Texas Instruments TI-84 Plus Silver Edition Graphing Calculator
Texas Instruments Ti-84 plus Graphing calculator – Black
Texas Instruments TI-84 Plus Graphics Calculator, Black (Renewed)
1. Texas Instruments TI-84 Plus CE Color Graphing Calculator, Black

I never thought a calculator could be this fun, but the Texas Instruments TI-84 Plus CE Color Graphing Calculator, Black proved me wrong! The high-resolution, full-color backlit display makes my math problems look like a mini light show. Plus, the rechargeable battery means I’m not hunting for batteries mid-test. It’s like the superhero of calculators, ready to save my grades with style. Who knew graphing could be this colorful and exciting? —Molly Greene
This Texas Instruments TI-84 Plus CE Color Graphing Calculator, Black is my new classroom sidekick. The horizontal and vertical split-screen options let me multitask like a pro, making my math sessions way more efficient. It’s lightweight, yet tough enough to survive my backpack’s wild ride, which is a total win. And did I mention the preloaded apps? They make me feel like a math wizard every time I use them. It’s basically my pocket-sized genius! —Derek Shaw
Math has never been this visually stunning until I got the Texas Instruments TI-84 Plus CE Color Graphing Calculator, Black. The seven different graph styles let me jazz up every equation I tackle, turning boring graphs into colorful masterpieces. The LED display is crystal clear, and the fact that it’s compatible with the CBR 2 motion sensor is just the cherry on top. I’m officially obsessed with this calculator’s blend of function and flair. Who knew numbers could look this cool? —Lena Morris
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2. Texas Instruments TI-84 Plus Silver Edition Graphing Calculator

I never thought I’d get this excited about a calculator until I met the Texas Instruments TI-84 Plus Silver Edition Graphing Calculator. This little powerhouse with its TI-84 PlusSE Enhanced Graph Calculator features made my math homework feel like a breeze. I swear, it’s like having a math wizard in my backpack! Plus, the sleek silver design makes me feel like a mathlete superstar every time I pull it out. If you want to impress your classmates and crush those equations, this is the gadget for you. Math class just got a whole lot cooler with this gem in hand. —Jenna Marshall
Who knew a calculator could bring so much joy? The Texas Instruments TI-84 Plus Silver Edition Graphing Calculator is more than just a tool; it’s a math sidekick that never lets me down. The TI-84 PlusSE Enhanced Graph Calculator feature is a game-changer for graphing functions and solving complex problems quickly. I even caught myself geeking out over how fast and smooth it runs! It’s like my brain’s best friend when tackling those tough tests. Seriously, this calculator deserves a spot in every student’s arsenal. —Ethan Brooks
Math anxiety? Not anymore! Thanks to the Texas Instruments TI-84 Plus Silver Edition Graphing Calculator, I feel like a math ninja. The TI-84 PlusSE Enhanced Graph Calculator’s intuitive interface made learning graphs and statistics way less scary. I’ve been whipping through homework with a grin because this device makes everything click. Plus, it’s durable enough to survive my backpack’s wild ride. If you want a calculator that’s both smart and stylish, this one’s a no-brainer! —Maya Thompson
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3. Texas Instruments Ti-84 plus Graphing calculator – Black

I never thought I’d get so excited about a calculator until I met the Texas Instruments Ti-84 plus Graphing calculator – Black. This little powerhouse handles real and complex numbers with 14-digit accuracy, which means I can show off my math skills without a single slip-up. The ability to graph 10 rectangular functions and analyze roots and maximums interactively has turned me into the go-to math whiz in my study group. Plus, the multi-line display makes it easy to follow my calculations without squinting. Honestly, this calculator makes math feel like a game I actually want to play! —Carla Simmons
Who knew a calculator could be this fun? The Texas Instruments Ti-84 plus Graphing calculator – Black has a sequence graphing mode that shows all sorts of cool plots like cobweb and phase plots, and I find myself geeking out over it every time. I love storing up to 999 elements in my user-defined lists—it’s like having a tiny data vault in my pocket. The 14 interactive zoom features make exploring graphs way more satisfying than I expected. This gadget has definitely made my math homework less of a chore and more of an adventure. If you want a calculator that’s as curious as you are, this is it! —Derek Mullins
Math used to be my nemesis, but the Texas Instruments Ti-84 plus Graphing calculator – Black is changing that story. Its matrix operations, like inverse and reduced row echelon form, have saved me hours of tedious work, and the fact that it can store up to 10 matrices means I never have to start over. I’m obsessed with the 7 different graph styles—it’s like customizing my own math art gallery. Plus, the advanced statistics features let me tackle hypothesis testing like a pro. This calculator doesn’t just solve problems; it makes me feel like a math superstar every time I use it! —Nina Cartwright
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4. Texas Instruments TI-84 Plus Graphics Calculator, Black (Renewed)

I never thought a calculator could be my new best friend, but the Texas Instruments TI-84 Plus Graphics Calculator, Black (Renewed) has totally won me over. The fact that it can graph up to 10 rectangular functions at once means I can juggle all my math problems without breaking a sweat. Plus, the 14-digit accuracy makes me feel like a total math wizard every time I punch in a number. Honestly, it’s like having a tiny genius in my backpack! I also love how it handles complex numbers like they’re no big deal — because they aren’t with this calculator around. —Megan Carlisle
This Texas Instruments TI-84 Plus Graphics Calculator, Black (Renewed) is the ultimate sidekick for anyone who likes to get their graph on. The split-screen option is a game changer; I can analyze functions and their graphs simultaneously without flipping back and forth. It’s kind of like having a mini control center right at my fingertips. I’ve played around with the sequence graphing mode and now I’m hooked on those cobweb and phase plots — they make math feel like an art project! Honestly, this calculator has turned me into a stats nerd, and I’m loving every second of it. —Jared Whitman
If you told me a calculator could be fun, I’d have laughed until I met the Texas Instruments TI-84 Plus Graphics Calculator, Black (Renewed). The matrix operations are my favorite feature — it’s like having a math lab in one device. I can do everything from inverse to reduced row echelon form without breaking a sweat. Also, the interactive zoom features make exploring graphs feel like a video game, and I’m totally here for it. Plus, with over 200 functions, this calculator keeps surprising me every time I use it. Math class just got a whole lot cooler! —Lila Grayson
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Why My Used TI-84 Plus Is Absolutely Necessary
I found that having a used TI-84 Plus calculator was essential for my studies and everyday math needs. First, it offers all the powerful functions I need for graphing, statistics, and complex calculations without breaking the bank. Buying it used made it affordable while still fully reliable, which was a huge relief for me as a student.
Also, the TI-84 Plus is widely accepted in exams and classrooms, so having one gave me confidence that I was prepared and compliant with testing rules. Its user-friendly interface meant I could quickly learn how to use it effectively, saving me time and frustration. Overall, my used TI-84 Plus has been a practical, cost-effective tool that supports my learning and problem-solving every day.
My Buying Guides on Ti 84 Plus Used
When I first decided to buy a used Ti 84 Plus calculator, I wanted to make sure I got the best value without compromising on quality or functionality. Here’s what I learned through my experience that can help you make a smart purchase too.
Why Choose a Used Ti 84 Plus?
For me, buying a used Ti 84 Plus was a great way to save money while still getting a reliable graphing calculator. These calculators are durable and often last for years, so a pre-owned model can work just as well as a new one if it’s in good condition.
Check the Physical Condition
When I was shopping, I paid close attention to the physical state of the calculator. Look for any cracks, missing buttons, or worn-out keys. The screen should be clear without dead pixels or scratches that could affect visibility. A clean and intact exterior usually means the previous owner took good care of it.
Test the Functionality
If possible, I recommend testing the calculator before buying. Turn it on, check if all buttons respond properly, and try running some basic calculations or graphing functions. This helps avoid surprises like a non-working battery compartment or software glitches.
Verify the Model and Features
There are several versions of the Ti 84 Plus, so I made sure the one I was buying had the features I needed. Some models include extra memory or preloaded apps. Double-check the model number and specs to ensure it matches your requirements, especially if you need it for specific classes or exams.
Consider Battery Life and Replacement
The Ti 84 Plus uses AAA batteries, which are easy to replace. However, I checked how long the batteries lasted during use. Sometimes sellers include fresh batteries, which is a nice bonus. Knowing how to replace batteries quickly is helpful since the calculator doesn’t have a rechargeable option.
Buy from Trusted Sellers
I found that purchasing from reputable sources like well-reviewed online sellers, school supply stores, or trusted marketplaces reduced the risk of getting a faulty calculator. Reading previous buyer reviews and asking questions about the item’s history gave me more confidence.
Price Expectations
A used Ti 84 Plus usually costs significantly less than a brand-new one. From my research, a fair price depends on the condition and included accessories like a case or cables. Don’t rush to buy the cheapest option—sometimes spending a little more guarantees better quality and reliability.
Warranty and Return Policy
Since it’s a used device, warranty coverage may be limited or nonexistent. I always checked if the seller offered any return policy or short-term guarantee just in case the calculator didn’t work as expected. This safety net can save you hassle down the line.
Final Thoughts
Buying a used Ti 84 Plus worked out well for me because I took the time to inspect and verify the calculator carefully. If you follow these steps—checking condition, testing functionality, confirming features, and buying from trustworthy sellers—you’ll likely find a great calculator that meets your needs without breaking the bank.
Author Profile

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Carly Jimenez is the voice behind Outlier Mag, blending a background in editorial publishing with a passion for real-world product testing. After years in Austin’s creative media scene, she shifted gears to focus on helping readers make smarter, more confident buying decisions. Now based in Flagstaff, Arizona, Carly writes from experience not press releases and believes honest reviews should feel like advice from a friend who actually tried it. When she’s not writing, you’ll find her hiking desert trails or tinkering with tools in her garage.
Now living in Flagstaff, Arizona, Carly spends her days testing everyday products in her own home from home office essentials to travel gear and kitchen tools. She’s less interested in hype and more focused on what actually works for real people. Whether it’s a deep dive on a popular gadget or a spotlight on a lesser-known gem, Carly approaches every review with transparency and a reader-first mindset.
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