Re: Which uses less power

On Wed, 23 Oct 2024 09:51:17 -0500, VanguardLH wrote:

Yep, the OP didn't specify how his listens to them.

It was a general question where it was about power requirements.
The phone can speak and the phone can throw bluetooth.
Whether or not WiFi is involved wasn't part of the question.
On trips, there are long waits, such as those waiting for a ride.
You're sitting on a bench or in a park or at a bus stop or whatever.
You want to listen to a podcast (whether streaming or prior downloaded).
I don't like earphones. I don't like earpieces. I like real speakers.
I only use earphones when I must use them (when around other people).
Otherwise I greatly prefer my sound to arrive at my ears the natural way.
I have a choice of bluetooth speakers (which have their own power).
Or the phone's speakers (which use up the phone power, of course).
Both use the phone's power to make sound but for different reasons.
The phone has to output to the bluetooth speakers over bluetooth RF.
And the phone has to output to the phone's speakers using audio power.
I wondered which is more efficient for the phone because on long waits,
such as those in airports, train stations, bus stops, and uber stops, you
often do not have easy access to USB power in the waiting spot you're at.
It seems from what one person wrote that the speakers consume much more of
the phone's power but from another reference it seems it's not so much.
It's confusing what the answer is where the reason for the question is that
the phone only has so much power on long trips where there is often a
series of long isolated waiting periods in between transportation types
where you're all alone but nowhere near USB chargers so you listen to
podcasts (whether on cellular data, wifi or not depending on availability).
I asked the question focusing only on the phone power requirements delta
between casting audio over bluetooth versus directly powering speakers.