The TI-84 Evo is nearly half off at Amazon, and it's built to handle all the math you'll throw at it

Credit: Texas Instruments Published Aug 14, 2026, 11:16 AM EDT Timi has been writing about technology for over a decade, focusing on smartphones, computers, and anything that he finds interesting in the tech space. He started writing for XDA, covering all things mobile, but has transitioned to covering deals, with a mission to shed light on some of the best discounts around the internet on the greatest tech products. Sign in to your XDA account This TI-84 Evo graphing calculator is an absolute must if you're starting advanced math this year. It can help visualize complex math concepts, making it a valuable tool at any level. The only drawback is the price: the TI-84 Evo normally retails for $160. The good news is that this model is now on sale from Amazon, with a 48% discount that knocks it down to $86. TI-84 Evo Graphing Calculator $86 $160 Save $74 The TI-84 Evo uses a new menu system that puts all the important features front and center. You get 50% more graphing, along with three times the processing power when compared to previous models. The software is upgradable, and you can charge the calculator using USB-C. The screen pops with color, and the keypad has also been revamped, removing much of the clutter of previous models. The software also prioritizes ease of use with a menu system that's broken down more intelligently. It also includes built-in assistance to guide you when you're lost. Most importantly, this calculator can be used on the ACT, SAT, and AP tests. This is an essential piece of tech if you're thinking about getting into higher math. This model even supports TI's online calculator feature. The online calculator is a web-based version of the device, letting you do calculations wherever you are, even without the hardware. Despite being a newer product, it's getting good ratings on Amazon, with an average 4.7-star rating out of five. More surprisingly, over 20,000 units have sold through Amazon in the past month. And that wasn't at its current discounted price. It's not necessary, but it can be a huge help for more advanced classes. And if you want to add a little style to your calculator, this one comes in several colors.