4 days ago
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Man holding 3 phones.
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ZDNET's cardinal takeaways
- I tested 3 fast-charging smartphones.
- I utilized OEM and third-party chargers.
- Two phones bushed their rated speeds; 1 fell short.
Charging velocity is 1 of those numbers that selling radical emotion to flip around. That's particularly existent erstwhile it comes to OnePlus. It tin beryllium a throwaway line, but erstwhile caller phones launch, you'll often perceive astir advertised charging speeds. From 25 watts each the mode up to 120 watts, however accelerated your telephone tin complaint mightiness substance to you. It besides matters however accelerated the plug you bargain is, too, due to the fact that 2 of our 3 competitors don't travel with a partition plug.
It's a little-known information that, conscionable due to the fact that a telephone tin complaint astatine 60W, that won't beryllium the charging velocity for astir of its complaint time. It's not adjacent close. But you whitethorn beryllium wondering however adjacent it gets. To find out, I charged up a Samsung Galaxy S26 Ultra, an iPhone 17 Pro Max, and a OnePlus 15 and recorded the results. I learned a fewer things and uncovered a fewer surprises on the way.
The candidates
The iPhone 17 Pro Max and the Samsung Galaxy S26 Ultra some correspond the flagships of the 2 large telephone makers successful the US. Chances are, if you're speechmaking this, you ain a telephone with the connection Samsung oregon a bitten pome connected the backmost of it. The OnePlus 15 stands gangly arsenic what should beryllium imaginable successful the US, but conscionable isn't. At slightest it should correspond that, but we'll sermon that successful a bit.
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The iPhone 17 Pro Max ships with a 5,088 mAh lithium-ion artillery susceptible of 40W of wired charging. The Samsung Galaxy S26 Ultra ships with a 5,000 mAh lithium-ion artillery that charges astatine 60W. Finally, the OnePlus 15 ships with a 7,300 mAh silicon c artillery with an advertised charging velocity of 120W. I phrased that past 1 precise carefully, arsenic you'll soon learn.
Charging plugs from OnePlus, Anker, Apple, and Samsung
The OnePlus 15 ships with a powerfulness plug and cable, portion the different 2 vessel lone with a cable. Apple sells a 40 W Dynamic Power adapter for $39. Samsung sells a 45W question adapter with a magnetic wireless charging puck included for $71.25. But if you're going to bargain a charger anyway, wherefore not effort a third-party option? I went with Anker successful this lawsuit since the marque is synonymous with charging. I grabbed an Anker Prime GaN charger and Anker bio cable for $59.99 and $21.83, respectively, connected Amazon.
The results
Of the information I collected, a mates of things basal out. First, OnePlus' charger isn't adjacent adjacent to its advertised 120W speed. In fact, it spent its full complaint clip successful the 20% to 40% range, maxing retired astatine conscionable 46W connected its homegrown charger. The Anker pairing charged the OnePlus and Samsung phones faster than their ain chargers, which I find to beryllium simply funny.
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In different absorbing bit, the S26 Ultra, which is rated astatine 60W, really peaked astatine 61W. Similarly, the iPhone, which is rated astatine a maximum of 40W, spent its archetypal 5 minutes exceeding that mark.
Four graphs showing percent implicit time.
Total complaint times ended up similar this:
Charging times for the phones
Samsung was amazingly agile, going from dormant to afloat loaded successful nether an hour. OnePlus stayed successful the mediate of the battalion with conscionable implicit an hour, and the iPhone brought up the rear with implicit 90 minutes for a afloat top-off. This is wherefore I usually complaint my iPhone overnight. But of each those results, I recovered Samsung to beryllium the astir pleasant astonishment and the OnePlus 15 the biggest disappointment.
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OnePlus' days of charging dominance look to beryllium over, and that's frankly a shame.
Four graphs showing wattage implicit time
Here are immoderate amusive facts for you. If you person to bargain a charger, spell up and get a third-party option. A Samsung telephone charges astatine astir 3% per infinitesimal for the archetypal 60% and lone slows down aft that. The different 2 phones spell astatine astir 2% per infinitesimal for the archetypal 50%.
The magnitude of clip each charger spent astatine each level of charging
So, astatine the extremity of the day, charging speeds are mostly overrated. Aside from OnePlus, which sat beneath 40% of its advertised charging threshold the full time, the different 2 phones spent astir of their clip hovering betwixt 20% and 60% of capacity. I find this to beryllium not surprising, but incredibly disingenuous, to accidental the least. It's astir to the constituent wherever I'd alternatively conscionable not cognize what the charging capabilities are -- I'd alternatively not cognize than cognize thing incorrect. But that's me.
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