The most notable upgrade in the Swarplug 5 is its measurement accuracy. While most smart plugs offer ±2% accuracy, the Swarplug 5 achieves ±0.5% accuracy thanks to a new Texas Instruments metering chip. This means if your device draws 100 watts, the Swarplug 5 will report between 99.5 and 100.5 watts—critical for diagnosing vampire power drain (standby consumption) and identifying failing appliances that draw abnormal current.

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We have all left the house wondering if we left a hot tool on. Open the Swarplug 5 app (or ask Siri/Google). Check the real-time wattage. If it reads above zero and you are three miles away, tap to kill the power. The Swarplug 5 also has a "Geofencing" auto-off: when your phone leaves the house, the plug cuts power to anything designated "Dangerous."

The companion Swarplex app (v5.0) has been completely overhauled. It now provides:

Unlike traditional plugs that just randomize on/off times, the Swarplug 5 uses "Presence Simulation." It downloads your actual usage data from the past week and repeats that exact pattern—TV on at 8 PM, off at 11 PM; kitchen light on for 10 minutes at 7 AM—making your home look lived in with real behavior, not random intervals.