CATIGA CS-121 Scientific Graphing Calculator
- Scientific, graphing and engineering modes
- 3 inch LCD display
- LR44 battery included, battery powered
- 4.8 ounces, 7 x 3.3 inches
- 1 year limited warranty
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A multi-mode calculator for students that handles scientific, graphing and engineering work on a large LCD. The listing gives no function count or exam approval, so check your class rules.
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ASIN: B07J65SZ46Model: 5582678373Category: Scientific Calculators
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Overview
Not a basic four-function calculator, this plastic unit covers three kinds of math work and runs on a small button battery. The listing is written for high school and college courses.
Students who want graph and engineering modes in one body get a screen large enough to read plots, which is why it suits coursework. The limitation is thin documentation, since function counts and test approval are not given.
Who it's for
Algebra, trigonometry and early engineering classes are the target, where a handheld with graphs and scientific functions covers the work. Test takers whose rules name specific models should check approval first.
Pros and cons
- Three calculator modes in one
- Large LCD display
- Light, pocketable body
- Exam approval not stated
- Function count not given
- Button battery, not rechargeable
Performance notes
The LCD plots functions and displays results from the scientific and engineering modes on one screen. A coin-style cell powers it, so heavy use will need a spare. Graph readability depends on screen size and contrast, which the listing does not detail.
Specifications
| Brand | Catiga |
|---|---|
| Model | 5582678373 |
| Dimensions & fit | |
| Item Dimensions L X W | 7 x 3.3 inches |
| Screen size | 3 inches |
| Weight | 4.8 ounces |
| Power & efficiency | |
| Power Source | Battery powered |
| Construction & materials | |
| Enclosure Material | Plastic |
| Color | Black |
| Included components | |
| Unit Count | 1 Count |
| Warranty & support | |
| Warranty Description | 1-year limited |
| Other details | |
| Calculator Type | Scientific, graphing, engineering |
| Display Type | LCD |
| Number Of Batteries | 1 LR44 battery (included) |
| Mfr Part Number | CS-121 |
Closest rivals on specs
Texas Instruments TI-34 MultiView Scientific Calculator- Screen Size 3 vs 2.6 inches (+15%)
Texas Instruments TI-36X Pro Engineering Scientific Calculator- Screen Size 3 vs 2.6 inches (+15%)
Texas Instruments TI-30Xa Scientific Calculator- Item Weight 0.3 vs 0.22 pounds (+36%)
- Screen Size 3 vs 2.1 inches (+43%)
Frequently asked questions
What comes in the box with the Catiga CS-121 calculator?
The listing says one LR44 battery is included. It does not list a case or manual.
Is the Catiga CS-121 a true graphing calculator?
The listing calls it a scientific calculator with graphic functions and gives scientific, graphing and engineering types.
What battery does the Catiga CS-121 use?
One LR44 battery, which is included.