Watt Charging Speed
Sindre Sørensen
See exactly how fast your charger really is — in real-time watts. Watt Charging Speed measures your charger's actual output so you can tell the difference between a fast charger and a slow one. Simply plug in your iPhone or iPad and watch the live wattage appear. REAL-TIME CHARGING SPEED • Live wattage display while charging • Color-coded speed indicator: Fast, Normal, Slow, or Trickle • Animated charging ring and live graph • Estimated time to full charge BENCHMARK YOUR CHARGERS • Create custom battery range tests (e.g. 30% → 80%) • Compare different chargers and cables side by side • Track which charger performs best CHARGING HISTORY • Automatic session tracking • View past sessions with average watts, duration, and battery range • Identify charging patterns over time PRIVATE BY DESIGN • No ads, no tracking, no accounts • All data stays on your device • No internet connection required • Works completely offline Perfect for testing new chargers, diagnosing slow charging, or verifying that your cable actually supports fast charging.