this post was submitted on 21 Jun 2025
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Know before you buy: starting today, EUโ€™s new labels shake up the smartphone market (lemmy.ca)
submitted 1 day ago by Sunshine@lemmy.ca to c/buyeuropean@feddit.uk
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[โ€“] Redex68@lemmy.world 15 points 1 day ago (5 children)

I like the other info, but I feel like energy efficiency is completely useless as a metric for phones. They already use such miniscule amounts of power that it really doesn't matter that much, especially compared to appliances.

[โ€“] Tja@programming.dev 5 points 16 hours ago (1 children)

Minuscule? A modern phone has a battery around a third or half that of a laptop (5000mAh x 3.7V = 18.5Wh). They also start having processors similarly capable. Gaming and other intense tasks can consume surprising amounts of energy. They put more and more emphasis on cooling, some phones including a fan. If we continue this way it starts to become expensive...

[โ€“] Redex68@lemmy.world 2 points 15 hours ago (1 children)

I mean I already wrote this out in reply to another comment but by their own numbers on the site announcing this they say that all phones combined yearly consume ~ 5.2 TWh, that's 0.2% of the EU's total anual consumption of 2.7PWh. They expect to reduce the power consumption by 20% (which I find questionable but ok) by 2030, reducing the consumption by 1.1TWh, thats just 0.04% of the total consumption. It really doesn't matter that much. And as for your comment, laptops are already also extremely efficient, so it's not like their power consumption is that significant either.

For context, a day's charge of a phone is equal to running a typical 2kW heater for 1 minute, a years worth of charge is equal to running it for 6 hours. I like the label and don't think it's a bad addition, I just feel that that information could have been replaced with more useful stuff (like how ethically sourced it was or how long it will be supported for), the energy efficiency feels more like doing it just so it looks the same as the other ratings without much purpose for it.

[โ€“] Tja@programming.dev 1 points 8 hours ago* (last edited 8 hours ago)

Those ideas are also good, but aren't mutually exclusive, you could have both.

PS: gaming laptops are not particularly efficient

[โ€“] wewbull@feddit.uk 11 points 1 day ago (1 children)

You don't care about battery life?

[โ€“] Redex68@lemmy.world 3 points 1 day ago (1 children)

Battery life is already on there as a separate metric

[โ€“] wewbull@feddit.uk 5 points 23 hours ago

...but the power draw is what sets the battery life for a particular size of battery. We don't particularly want to set up a game that just incentivises putting bigger batteries in, so we have a metric for power draw.

[โ€“] Kushan@lemmy.world 4 points 1 day ago

I think that's the wrong way to look at it. Times any of those metrics by the literal billions of phones out there and it adds up quite quickly.

Sure on an individual basis it might mean savings of a few bucks over the course of the lifetime of the phone, but scale that up and we're talking entire power plant's worth of electricity that isn't required.

[โ€“] LwL@lemmy.world 4 points 1 day ago (1 children)

I feel this way about washing machines already. Oh wow, this one uses 0.6kwh less per wash. That's like 30kwh a year!

meanwhile my fridge

[โ€“] Tja@programming.dev 1 points 16 hours ago

You fridge should consume between 100 and 200 kWh a year, depending on efficiency and size. 30kWh a year is a notable saving, between 10 and 15โ‚ฌ a year, if you keep the machine 10 years it's like a third of the price. If you have kids more than that, since you run it more than one a week.

[โ€“] Damage@feddit.it 3 points 1 day ago

Agreed, it's just that they unified it for all electronic devices.

Kinda dumb.