| Portability |
Pocketable, lightweight — wins for travel/field use |
Bulky, stays on desk |
| Display & keys |
Smaller screens and keys — may limit complex entry |
Larger, easier-to-read displays and ergonomic keys |
| Power |
Battery/solar/rechargeable — good for off-grid |
Mains-powered (often) or long-life batteries |
| Functionality |
Ranges from 4‑function to graphing; advanced models exist |
Usually tuned to finance/printing or high-volume tasks; some scientific/graphing desktops exist |
| Printing & record-keeping |
Rare |
Common — integrated printers for audits/receipts |
| Durability for heavy use |
Less suited for continuous commercial use |
Built for long sessions and fast numeric entry |
| Cost |
Very low to moderate (basic → graphing) |
Moderate to high for printing/advanced models |
| Exam/education use |
Many scientific/graphing models are exam-approved |
Rarely used in exams; mostly office use |
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