Calculator Doodle Board Calculator for Kids Calculator with Writing Tablet Calculator Calculator Writing Tablet

core functionality

•  Dual-mode input free switching::
• handwriting calculation: Write formulas and numbers directly by electromagnetic pressure-sensitive pen, recognize and display calculation results in real time (support arithmetic, functions, equations, etc.).
• keystroke calculation: Equipped with physical number keys and scientific calculation keys (e.g., sin/cos, logarithmic, and power operations) to satisfy traditional calculation habits.
• Dynamic synchronized display: LCD ink screen split-screen design, the upper half of the screen retains the handwriting, the lower half automatically generates the calculation process and results, which is convenient for retrospective verification.
• Intelligent error correction and alerts: AI algorithms recognize writing ambiguous characters or logical errors (e.g., bracket mismatches), flag the problem, and suggest a fix.

Hardware & Design

• Ultra-thin and portable: Thickness ≤ 8mm, weight about 150g, can be put into the folder or notebook compartment, suitable for carrying around.
• Low power consumption and long battery life: E-ink screen + solar-assisted charging for up to 6 months of battery life in no-backlight mode.
• Paper-grade writing experience: The frosted screen surface simulates the feel of paper, and the pressure-sensitive pen supports 4096 levels of pressure sensing for fine notes or bold markup.
• Data export and storage: Connects to computer/mobile phone via USB-C or Bluetooth, exports calculation records as PDF or text, built-in storage supports 1000+ pages of content.