ti nspire

Models use either a built‑in rechargeable lithium‑ion battery (listed as 'TI Rechargeable Battery' or '1 Non‑Universal Lithium Ion') or replaceable AAA alkaline cells (e.g., '4 AAA Alkaline').

Storage varies by model; listings show capacities of 100 MB, 64 MB, and 160 KB across different calculators.

Listings note approvals for AP subjects (AP Calculus, AP Chemistry, AP Physics, AP Environmental Science) and the ACT; one description also mentions approval for AP and the IB Diploma Programme.

The CX series features a high‑resolution, backlit color display with MathPrint input and multi‑color graphing (up to 15 colors) to improve readability and visual clarity.

Listings mention a USB cable for connecting to a computer for data transfer and charging. Some models include built‑in rechargeable batteries that can be recharged via that connection.

Descriptions emphasize classroom durability (designed to avoid cracked screens and maintain key function) and a distraction‑free design—no Wi‑Fi, Bluetooth, or cameras—making them suitable for school use.

Typical listed dimensions vary by model: height 7.3–7.59 inches, width 3.42–3.62 inches, depth 0.62–1 inch. Weights shown include 7 ounces, 0.57 pounds, and 0.75 pounds across different listings.