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expiredRed_Liz | Staff posted Feb 3, 2026 8:03 PM

Texas Instruments Ti-83 Plus Graphing Calculator (Black)

$45

$105

57% off
+ Free Shippingat eBay
51 Comments
22.3K Views
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Deal Details
Bullseye Deals via eBay has Texas Instruments Ti-83 Plus Graphing Calculator (Black) on sale for $49.99 - additional $5 off $40 promo (automatically applies in cart) = $44.99. Shipping is free.

Thanks to Staff Member Red_Liz for finding this deal.

Features:
  • Upgradable operating system and software
  • Preloaded apps: StudyCards, Vernier EasyData and more
  • Compatible with TI-84 Plus and TI-84 Plus Silver Edition models
  • 4 x AAA Batteries Required (Included)

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
    • Our research indicates that this deal is $55 less (55% savings) than the next best available price from a reputable merchant with prices starting from $99.99 at the time of this posting.
  • About this product:
    • 1-year warranty
  • About this store:
    • 30 days returns. Seller pays for return shipping.

Original Post

Written by Red_Liz | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Bullseye Deals via eBay has Texas Instruments Ti-83 Plus Graphing Calculator (Black) on sale for $49.99 - additional $5 off $40 promo (automatically applies in cart) = $44.99. Shipping is free.

Thanks to Staff Member Red_Liz for finding this deal.

Features:
  • Upgradable operating system and software
  • Preloaded apps: StudyCards, Vernier EasyData and more
  • Compatible with TI-84 Plus and TI-84 Plus Silver Edition models
  • 4 x AAA Batteries Required (Included)

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
    • Our research indicates that this deal is $55 less (55% savings) than the next best available price from a reputable merchant with prices starting from $99.99 at the time of this posting.
  • About this product:
    • 1-year warranty
  • About this store:
    • 30 days returns. Seller pays for return shipping.

Original Post

Written by Red_Liz | Staff

Community Voting

Deal Score
+92
Good Deal
Visit eBay

Top Comments

Raphy
799 Posts
162 Reputation
Wow - a laptop from 30 years ago would be worthless today, yet a virtually unchanged graphing calculator from 30 years ago is still the same price...
sdskees
220 Posts
85 Reputation
I'm a math teacher (teach high school during the day and college courses through calculus II as an adjunct), these things are barely worth it at this point. Yet they still sell new ones even! They're OK for lower level math classes in high school (algebra 1, geometry, algebra 2), but once you hit precalculus and calculus, you start running into features on newer ones that could be incredibly useful that just aren't on this. One class that I teach is AP Statistics, and with the way that statistical features have evolved on the newer calculators, these are very cumbersome to use in stats, with a lot of limitations and ways of entering things that even I can't keep track of.
I know some people will say things like "we have free things like Desmos and our cell phone to do this stuff on now." That's partially true. They even allow Desmos on AP exams and the SAT now. But Desmos has limitations as well, can be sort of cumbersome for some features, and it is unlikely that anybody would be able to use that on a test in a high school or college class. It just opens up way too many exam security risks. All three of the colleges that I've taught at in recent years actually have department policies that ban the use of online calculators, and require handheld ones.
Also worth noting, an even newer TI-84 is coming out in a few months, the TI-84 Evo. That would make this one even more outdated.

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51 Comments

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Feb 3, 2026 11:07 PM
799 Comments
Joined Mar 2014
RaphyFeb 3, 2026 11:07 PM
799 Posts
Wow - a laptop from 30 years ago would be worthless today, yet a virtually unchanged graphing calculator from 30 years ago is still the same price...
29
1
Feb 3, 2026 11:21 PM
66 Comments
Joined Oct 2014
skim155Feb 3, 2026 11:21 PM
66 Posts
I had this in high school in the mid-late 2000s... I may get this as a sealed collectable lol
6
Feb 3, 2026 11:23 PM
677 Comments
Joined Mar 2006
jad74Feb 3, 2026 11:23 PM
677 Posts
Quote from Raphy :
Wow - a laptop from 30 years ago would be worthless today, yet a virtually unchanged graphing calculator from 30 years ago is still the same price...
And yet today? A highly encrypted digital number hit $120k just last year?
And is currently $70+ k a coin? Go figure huh
3
5
Feb 4, 2026 12:28 AM
626 Comments
Joined Dec 2004
onionringFeb 4, 2026 12:28 AM
626 Posts

Our community has rated this post as helpful. If you agree, why not thank onionring

After all these years they still haven't improve the display?? Needs to be at least 1080p now
2
3
1
Pro
Feb 4, 2026 12:30 AM
17.7K Comments
Joined Aug 2009
PocketsThick
Pro
Feb 4, 2026 12:30 AM
17,736 Posts
There's nothing guaranteed in life but death, taxes, and Ti-83 calculators.
18
Feb 4, 2026 12:32 AM
1.4K Comments
Joined Jun 2009
NSTarFeb 4, 2026 12:32 AM
1,436 Posts
this should be 5 dollars.
7
Feb 4, 2026 12:39 AM
276 Comments
Joined Feb 2015
grozny.entertainmentFeb 4, 2026 12:39 AM
276 Posts
Why do highschools require ti84. Maybe that's why going on sale

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Feb 4, 2026 12:42 AM
55 Comments
Joined Dec 2020
BraveEducation582Feb 4, 2026 12:42 AM
55 Posts
i lost mine at the testing hall on my last calculus exam in my life in 2002. Turned in my paper and forgot to go back to the desk to grab it. Never needed one again ever in life.
3
Feb 4, 2026 12:57 AM
7.5K Comments
Joined Aug 2007
lotsalotsadealsFeb 4, 2026 12:57 AM
7,482 Posts
Quote from skim155 :
I had this in high school in the mid-late 2000s... I may get this as a sealed collectable lol

Read the customer reviews.
The 1 time I bought from these idiots...It was a FP deal posted NEW Mens electric razor.
Needless to say most received USED razor(s) lots with hair and/or pubes (At no extra charge).
2
Pro
Feb 4, 2026 1:09 AM
1.4K Comments
Joined Jul 2007
ton714
Pro
Feb 4, 2026 1:09 AM
1,416 Posts
Is this good for high schooler ? My boy will be freshmen next year?
Feb 4, 2026 1:22 AM
346 Comments
Joined Apr 2015
hallaj33Feb 4, 2026 1:22 AM
346 Posts
Quote from ton714 :
Is this good for high schooler ? My boy will be freshmen next year?
TI-84 is easier to use, but the TI-83 will work.
Feb 4, 2026 1:23 AM
69 Comments
Joined Dec 2012
RiptidesFeb 4, 2026 1:23 AM
69 Posts
Quote from ton714 :
Is this good for high schooler ? My boy will be freshmen next year?
See what your high school requires. Some are asking for the 84
1
Feb 4, 2026 1:26 AM
26 Comments
Joined Nov 2006
mastercdFeb 4, 2026 1:26 AM
26 Posts

Our community has rated this post as helpful. If you agree, why not thank mastercd

Quote from ton714 :
Is this good for high schooler ? My boy will be freshmen next year?
Depends on how much he likes math. If not, then this deal is probably worth it otherwise I would save up for the 84 Plus CE/Python version since it is much more modern and a better long term (college) investment.

There's also no shortage of second hand calculators on FB.

Here's a quick comparison on what each calculator is capable of:

https://education.ti.com/en/produ...comparison
1
Feb 4, 2026 1:31 AM
4.7K Comments
Joined Nov 2005
LarkFeb 4, 2026 1:31 AM
4,723 Posts
These were great to cheat on tests to write notes in the memo section
1

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Feb 4, 2026 1:54 AM
1.2K Comments
Joined Nov 2014
gonehometodallasFeb 4, 2026 1:54 AM
1,168 Posts
Quote from Lark :
These were great to cheat on tests to write notes in the memo section
I wrote paragraphs of cheats on it.
1

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