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Sonoff Responsiveness on GSM/Cellular

We’ve been asked a number of times if there are any responsiveness or latency issues with Sonoff switches, whether on GSM/cellular or WiFi. We’ve decided to upload this video showing near instant operation on GSM/cellular.

The phone used in the demonstration is a Huawei P9 running Android 7.0. The switches area combination between an S20 wall socket, a Sonoff POW unit and a Sonoff Basic units.