Official Battery Life: Up to 14 days with light daily use (about 30 minutes daily), and up to 113 days in deep standby + airplane mode. store.iflytek Key Features Thinnest E-Ink Device in the World: Only 4.2mm thick and very light (295g), 16% thinner than the previous generation. Paper-like Writing Experience: Dedicated Wacom pen with very low latency (less than 20ms) and 8 brush styles, and a natural friction feel. Powerful AI (Powered by GPT-5 / Large Models): Real-time Speech-to-Text Conversion (16–18 languages depending on source). Instant Translation (about 11–14 languages). Handwriting to Text Conversion in 133 languages. Automatic Meeting Summarization, Task Extraction, and Natural Search in Notes. Dedicated AI Button for quick access to the smart assistant (questions, scheduling, note search). High-Quality Audio Recording with Speaker Separation and Smart Summarization. Wide File Support: PDF, EPUB, TXT, MOBI, AZW3, DOC/X, XLS/X, PPT/X, JPEG/PNG images. Open System: Apps can be installed from Google Play. Secure Cloud Sync (AWS) with mobile app and transfer via USB, Bluetooth, or QR.