Device Watch is an Android device monitor with a home-screen widget, per-app usage insights and an interactive screensaver for charging or docked use. It works completely offline: the app has no internet permission, and every number is real data read from Android and kernel sources — when a value is not available with the permissions granted, the app shows a dash instead of a fabricated value. Features: * Resizable home-screen widget: battery, memory, CPU, storage, Wi-Fi, mobile network, data usage, uptime, today's screen time and last update time; compact 2×2 widget with data-period labels; 1×1 widget with one figure of your choice * Quick Settings tiles and live notification figures of your choice: battery, battery power, temperatures, data today, uptime, CPU load, memory, storage * Floating figure: a small card with one to three of those figures over other apps, full-screen games and video included, brought up and taken down from Quick Settings * Data counters per calendar day or per one-month billing cycle with a configurable start day * Tabbed dashboard: Home (live battery ring, usage counters, system meters and live network traffic), Apps (usage insights), Device (hardware, SIM, Wi-Fi, camera and audio details) and Settings * Screen-time donut of your most-used apps, top data consumers and a last-opened list with per-app uninstall * Usage counters with a private 62-day daily history kept on the device: app screen time, screen-on time, unlocks, filtered notification count, restarts, charging sessions and used storage * Battery history and charging sessions for 14 days, with temperatures and charging rates * Optional charge reminders, mobile-data quota warnings and alerts for a hot battery, low storage or fast battery drain * CSV exports and a self-contained HTML report with charts, search and date filters * On-device notification log with 7-day retention * Since-charge view: elapsed time, battery drop, average drain and per-app screen time since the battery w