The Casio SX-300W is a compact, ultra-portable handheld basic calculator designed for everyday arithmetic. It is highly favored for retail billing, quick office tasks, and student use due to its slim profile and lightweight build.

The Casio SX-300W features a clean, modern aesthetic with highly responsive, durable plastic keys that provide a comfortable typing experience. Its most standout physical feature is the Extra Large LCD display, which significantly improves visibility and minimizes eye strain.

Equipped with a Two-Way Power (Solar + Battery) system, it relies primarily on solar energy when lighting is sufficient but switches seamlessly to battery power in dim settings, ensuring it never shuts off mid-calculation.

• Basic Arithmetic: Addition, subtraction, multiplication, and division.
• Regular Percentage (%): For quick markup, discount, and tax calculations.
• Square Root (√): Dedicated key for basic algebraic functions.
• Sign Change (+/─): Easily switch numbers between positive and negative values.
• Memory Functions: Independent memory storage keys (M+, M-, MRC) to track running totals.
• Product Type: Portable / Handheld Type
• Number of Digits: 8 Digits
• Display Features: Extra Large Liquid Crystal Display with 3-digit comma markers
• Dimensions (D × W × H): 118.5 × 70 × 7.5 mm (11.85 x 7.0 x 0.75 cm)
• Power Supply: Two-Way Power (Solar cell + small button battery)
• Key Material: Durable Plastic