*Please note:
- WiFi (Xtar 1620mWh AAA Required)Version : Batteries are not included. XTAR 1620mWh AAA rechargeable lithium batteries are required for stable operation.
- WiFi + 4G Version: The SIM card is not included. 4G requires a nano 4G IoT SIM card (LTE CAT-1). Check this FAQ for the SIM card details.
Introducing 7-Cal | The World’s 1st AI Calculator with Camera
🤖 AI System: Use 7-Cal’s built-in AI system with GPT-5.6 Sol, Gemini 3.1, Claude Opus 4.8, and custom API options.
- Supports 50+ languages, symbols, and LaTeX-supported explanations.
- Personalize your AI with Custom Prompts, PDF file references, real-time online search, and recent conversation memory.
📸 2K Camera with Autofocus
🌐 Wi-Fi & 4G Connectivity
💬 Chatroom: Share text and images with friends. Supports up to 10 people.
📁 File Storage:
- Online Files: Text files with LaTeX support. Up to 350 KB each, about 358,400 characters. Unlimited files; up to 10 active documents can appear on 7-Cal.
- Offline Files: On-device .txt storage for faster access
✨LaTeX Display (Beta): Supports cleaner display of formulas, tables, graphs, and diagrams in AI Chat, Chatroom, and Online Files.
🧮 240+ Scientific Functions: Fully compatible with the classic 82MS scientific calculator.
🔋 Power Management: Dual-core processor + TI chip for efficient, long-lasting use.
🔄 OTA Updates: System upgrades for new features and improvements.
🔒 Privacy Mode: Custom password to enter AI mode; One tap returns to calculator mode with a random formula.
🎁 Free AI Plan Included: Comes with a 30-Day AI Plan.
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⚠️ Important Notice: 7-Cal is not intended for trial or testing purchases. Activated or used devices are not eligible for return or refund under our Return, Refund & Warranty Policy.
Batch versions are shipped at random based on availability. The front logo, key print color, and packaging may vary between batches. All versions have the same functionality, specifications, and compatibility.
All prices are displayed and charged in USD.
Reviews
The 7-Cal is a total beast. It looks like a standard scientific calculator, but the AI MODE with AI Chat and Chatroom functions is revolutionary. It features a full QWERTY digital keyboard and supports a massive variety of characters, making it perfect for complex notes and file management.
It’s durable, tactile, and feels like a stealthy workstation for any engineering student. Highly recommended for anyone needing an edge!
My friends were shocked by the device, it is very useful for studying and solving complex problems (I tried it with Macroeconomics and Integral Calculus), the camera works and has extremely good quality for how small and incospicuous it is. The delivery time was exceeded and the staff is helpful and direct.
Comes with a key for an online manual which is very detailed and answers 99% of questions.
The keys need a little more pressure than expected sometimes, but it's not a big deal.
I'm Happy!
Delivery was quite fast, it arrived in perfect condition and ready to use, excellent compatibility whit 4G chip, long battery life, very discreet to use, and pretty good interface. In conclusion, it’s an excellent purchase, no complaints whatsoever, I wouldn’t think twice about before buying it again.
7 Calc is an amazing all-in-one calculator app.
What really sets it apart is the AI and ChatGPT integration, which doesn’t just give answers but actually explains them clearly. This helps a lot when you’re studying or stuck on a hard question.
The camera feature is next level — you can scan math problems directly and get instant solutions and explanations. The interface is clean, fast, and easy to use.
Overall, 7 Calc feels like a smart tutor in your pocket, not just a calculator. Definitely w