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That doesn't turn off your LTE radio though...

• Nition 9y ago
  But djrogers was saying that if I had WiFi on it'd save power because LTE would be off. Surely they only mean the data component? I thought the basic mobile connection was active all the time (unless there was no signal). Are you saying if I turn WiFi on, and I receive an SMS (not through iMessage) or a phone call, it's actually coming through WiFi and the mobile connection is totally off? Surely not.
  • jsjohnst 9y ago
    It’s possible, depending on your carrier, that it uses Wi-Fi for calls, but doubt that’s what he meant. Either way, in your specific use case, I agree, turning off Wi-Fi would save power, I just don’t believe it’s 2x difference though.
    • Nition 9y ago
      I just looked it up and found the official page on Wifi calling[1], but yeah, that option isn't there on my phone. [1]https://support.apple.com/en-nz/HT203032 https://support.apple.com/en-nz/HT203032