UNIWA F400 4G Public Network Radio Smartphone — 4.0" HD IPS (500 cd/m²), MediaTek Helio G81 Octa-Core, Android 15.0, 4GB/64GB (MicroSD to 256GB), 13MP + 13MP IR + 5MP, 4350mAh User-Replaceable, 15W, NFC, GPS, Type-C, IP65, PTT & SOS

Rugged build for harsh environments: The UNIWA F400 is engineered for industrial use with an IP65 waterproof and dustproof rating and an operating temperature range of -20°C to 60°C. Its housing is molded from reinforced PC plastic containing 10% fiberglass to improve impact resistance while keeping a sturdy feel. Communication and safety features: Built specifically for push-to-talk workflows, the F400 includes a dedicated PTT button and is compatible with major public-network intercom apps such as Zello, Real PTT and Pocstar. Onboard safety tools include a prominent SOS key and a bright front-facing red/blue strobe warning light. Connectivity and positioning: Supports global cellular networks (2G, 3G, 4G FDD/TDD across multiple bands) with dual Nano‑SIM capability. Wireless options include dual-band Wi‑Fi (2.4/5GHz), Bluetooth 5.0 (BLE), NFC, and multi-system satellite positioning (GPS, GLONASS, Galileo, BeiDou). Performance and storage: Powered by the MediaTek Helio G81 octa-core processor with Mali‑G52 GPU, the phone comes with 4GB RAM and 64GB internal storage expandable via MicroSD up to 256GB. Imaging: A practical triple-camera arrangement covers documentation needs — 13MP rear camera with flash, an additional 13MP IR camera, and a 5MP front-facing camera. Power and expansion: The F400 uses a user-replaceable 4350mAh Li‑Polymer battery and supports 15W fast charging via USB Type‑C; it can also charge through optional dock charger contacts. Field-ready ergonomics: A bright 4.0-inch HD IPS display (500 cd/m²) ensures outdoor legibility. The device also includes stereo speakers, multiple physical control buttons, an M6 accessory port, and supports an optional intercom hand microphone for extended two-way operation.