Re: Which uses less power

On 2024-10-23 08:27, Chris wrote:

Qihe <Q@invalid.invalid> wrote:

Qihe <Q@invalid.invalid> ha scritto:
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Chris <ithinkiam@gmail.com> ha scritto:
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sms <scharf.steven@geemail.com> wrote:

On 10/21/2024 11:15 PM, Bill Powell wrote:

Which uses less of the phone's battery power on long trips?
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Playing long podcasts with the Android speaker as the output?
Playing long podcasts with a Bluetooth speaker as the output instead?
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Any idea?

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Speaker wattage is about 3W.
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Bluetooth uses about 2.5mW.
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So the speaker uses more than 3000x the power.

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Do you have a source?
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https://www.androidauthority.com/does-bluetooth-drain-battery-1145853/
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They say: "The results show that playing back audio over Bluetooth
  consumes essentially the same amount of power as playing back
  audio over speakers or headphones with Bluetooth turned
  off".

 I also saw that. Interesting. Thanks.
 I did suspect sms's claim was way off.

I do not know the wattage of the speakers in a phone, but I suspect it can be near 1 W, because that's the power of a traditional small speaker. However, phone speakers are far cousins of standard speakers. They produce an amazing volume with amazing reliability for something that small.
I guess the result of the experiment varies with the volume of the speaker. Was the user close to the speaker?
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Cheers, Carlos.