Comment on The Paradox of Blackmarket Wired Bluetooth Apple headphones.
Melody@lemmy.one 4 weeks agoSo much for using airplane mode to conserve battery.
Your understanding is slightly off.
Airplane mode Does In Fact Turn off your CELLULAR Radio This radio is what powers your (2/3/4/5)G and LTE (This is 4G btw) connection to the cell towers.
Most international radio communications laws can prohibit the use of Cellular Radio in flight; however they often don’t prohibit the use of shorter range radio technologies such as WIFI or Bluetooth.
It’s all about ‘loudness’. Think about it. Your phone must ‘scream louder’ at a farther away cell tower than it would need to communicate with a nearby WiFi router or a Bluetooth headset.
BarryZuckerkorn@beehaw.org 4 weeks ago
Also, phones don’t use a lot of power to purely listen for Wifi beacons. They’re not transmitting until they actually try to join, so leaving wifi on doesn’t cost significant power unless you just happen to be near a remembered network.
Melody@lemmy.one 4 weeks ago
Your comment missed the mark entirely. Please don’t reply-guy me; I know what I’m talking about.
BarryZuckerkorn@beehaw.org 4 weeks ago
Not sure why you’re saying that. I wasn’t disagreeing with any of your points, but adding to them another angle that answered the parent comment’s concerns about whether leaving wifi on for airplane mode drains battery. You addressed the cellular radio side, and I was adding a separate point about the WiFi radio that complements what you were saying.