Fast charging by phone brand: USB PD, PPS and proprietary chargers
Which fast-charging standard iPhone, Galaxy, Pixel, Xiaomi and OPPO phones really use, and how to read a charger label to know if it will reach full speed on your phone.
7 min readPublished Nov 4, 2026
Short answer: iPhones fast-charge on any decent USB Power Delivery (USB PD) charger. Samsung Galaxy phones only reach Super Fast Charging when the PD charger also supports PPS. Google Pixels charge on plain PD but are fastest with PPS. Xiaomi and OPPO phones hit their headline speeds only with their own charger and cable, and fall back to slower PD or PPS speeds on anything else. The way to know before you buy is to read the output lines printed on the charger.
Our chargers-and-cables guide explains watts, PD and PPS in general. This guide goes one level deeper: what each phone family actually asks for, as of November 2026, and how to match that to a label.
The short version
Phone family
What it needs for top wired speed
On a generic PD charger without PPS
What to look for on the label
iPhone 15 to 17
USB PD (Apple lists 18 W or more); 40 W or more for iPhone 17 top speed
Fast charges normally
"PD" and enough watts
iPhone 18 Pro models and iPhone Duo
60 W-capable USB PD charger with AVS
Charges, but Apple's top claim needs AVS
An "AVS" line, 60 W or more
Samsung Galaxy
USB PD with PPS: 25 W, 45 W or 60 W tiers
No Super Fast Charging
A "PPS" line that reaches 25 W or 45 W
Google Pixel
Sources
We checked these pages while writing this guide. Rules and product details change, so the date shows when each one was checked.
Why watts matter, USB Power Delivery and PPS, Quick Charge, GaN chargers, multi-port sharing, cable ratings, the warning signs of a bad charger, and Egyptian 220 V plugs.
Two USB-C cables can look identical yet carry 60 W or 240 W, 480 Mbps or 80 Gbps, with or without video. What changes inside, and how to tell which cable you have.
Why a 65 W three-port charger does not give 65 W to every port, how to read the port power table, and real splits published by Anker, Apple, Google, Samsung and Belkin.
PD; PPS 30 W or 45 W for top speed
Charges, more slowly (PD 15 W or more)
A "PPS" line
Xiaomi (HyperCharge)
Xiaomi's own charger and protocol
Charges over PD; some models also list high-watt PPS
Check the phone's spec page
OPPO (SUPERVOOC)
OPPO SUPERVOOC charger and cable
Much slower on some models, for example 13.5 W over PD on the F31 Pro
A "PPS" line, as a second-best option
Swipe sideways to see the whole table.
iPhone: plain USB PD is enough
Apple's support page is clear that iPhone 15 and later fast-charge with an Apple 18 W or higher USB-C adapter or a comparable third-party adapter that supports USB PD. For the iPhone 17, 17 Pro and 17 Pro Max, Apple quotes 50 percent in around 20 minutes with a 40 W or higher adapter, while the iPhone 17e and iPhone Air need 20 W or more for 50 percent in around 30 minutes.
The newest models raise the bar. For the iPhone 18 Pro and 18 Pro Max (50 percent in around 15 minutes) and the iPhone Duo (50 percent in around 20 minutes), Apple's fastest claim uses its 40W Dynamic Power Adapter with 60W Max or a third-party 60 W-capable adapter that supports USB PD 3.2 with Adjustable Voltage Supply (AVS), plus a 60 W-capable USB-C cable. Apple's requirements talk about USB PD, and AVS for the newest Pro models; they never mention PPS. Apple also notes that fast charging may not work when it is too hot or too cold.
Samsung Galaxy: PD alone is not enough
Samsung's own charger table lists Super Fast Charging (25 W) as USB PD with PPS, Super Fast Charging 2.0 (45 W) as needing a compatible cable, and Super Fast Charging 3.0 (60 W) as its USB PD 3.1 PPS charger. Samsung's support page warns that a charger with a high maximum output may still not give Super Fast Charging if it lacks PPS, and tells you to check the detailed specifications.
The cable matters too. Samsung says 45 W charging needs its 45 W charger with a 5 A cable, although it notes that the Galaxy S25 and later can reach Super Fast Charging 2.0 with the 3 A cable that comes in the box. It also warns that off-spec cables with high resistance can make charging stop intermittently. Samsung's older Adaptive Fast Charging (15 W) runs over USB-A ports.
Google Pixel: PD works, PPS is faster
Google lists three kinds of adapters for Pixel phones: its own 30 W, 45 W or 67 W chargers, any PPS adapter rated 30 W or more, and other USB PD adapters rated 15 W or more. Google's spec pages tie the advertised speeds to PPS: the Pixel 10 and Pixel 11 models quote their 30-minute figure with a 30 W PPS charger, except the Pixel 10a, Pixel 10 Pro XL and Pixel 11 Pro XL, which quote theirs with a 45 W PPS charger. Google adds that a USB-A charger and cable charge the phone more slowly.
Xiaomi and OPPO: proprietary on top, standard underneath
Xiaomi's spec pages show how much this varies by model. The Xiaomi 15T Pro lists 90 W HyperCharge, says it supports PD 3.0 and PD 2.0, ships without an adapter, and recommends a Xiaomi 90 W adapter. The Redmi Note 14 Pro+ lists 120 W HyperCharge and recommends either 100 W adapters that support PD or Xiaomi's 120 W adapter. The Xiaomi 17 Ultra lists 90 W HyperCharge and also 90 W PPS. Always read your own model's page.
OPPO is the clearest example of the fallback. The OPPO F31 Pro supports 80 W SUPERVOOC but lists only 44 W for third-party "fusion" fast charging, 33 W with PPS, and 13.5 W with plain PD or Quick Charge. The Find X8 Pro lists PD at 9 V and 1.3 A (under 12 W) and PPS at 11 V and 3 A outside the EU. So a big generic PD charger without PPS can charge these phones more slowly than a small branded one.
How to read a charger label
The output section on the charger, box or spec sheet lists every voltage and current the charger can offer. Multiply volts by amps to get watts.
Label line (real examples)
What it means
Who benefits
PD: 5V⎓3A, 9V⎓3A, 15V⎓3A, 20V⎓2.25A
Fixed USB PD steps, here up to 45 W
iPhone, Pixel, laptops, any PD device
PPS: 5–11V⎓2.25A
A PPS range; 11 V × 2.25 A is about 25 W
Galaxy 25 W Super Fast Charging
PPS: 5–20V⎓2.25A
PPS up to 45 W
Galaxy 45 W, with the right cable
PPS: up to 11V/3A, 16V/3A, 21V/2.25A, max 45W
Google's 45 W charger
Pixel phones that quote 45 W
AVS: 9–15V/4A, 15–20V/3.35A
Adjustable Voltage Supply, a newer PD option
iPhone 18 Pro top speed
USB-A: 9V⎓1.67A
USB-A cannot do PD; about 15 W
Older Quick Charge and Adaptive Fast Charging phones
Swipe sideways to see the whole table.
These lines are copied from the published specifications of Google's 45 W and 67 W chargers and Samsung's 45 W, 50 W and 65 W chargers. A few practical rules follow:
No "PPS" printed anywhere means you should assume there is no PPS.
Check that the PPS range reaches the watts your phone wants. A PPS line that stops at 11 V and 2.25 A will not give a Galaxy its 45 W mode.
Brand names such as SUPERVOOC or HyperCharge only help phones of that brand.
On multi-port chargers each port can have different lines. Samsung's own 50 W dual-port and 65 W three-port chargers support Super Fast Charging 2.0 only on port 1 and only when a single device is connected. Our multi-port charger guide explains why.
Before you buy
Look up your phone's maximum wired charging and the protocol it names on the maker's spec page.
iPhone: a USB PD charger (Apple lists 18 W or more, and 20 W or more for iPhone 17e and iPhone Air); 40 W or more for iPhone 17 top speed; a 60 W AVS charger for iPhone 18 Pro and iPhone Duo top speed.
Galaxy: a PD charger with a PPS line reaching 25 W or 45 W, and a 5 A cable for 45 W on models before the S25.
Pixel: a PPS charger of 30 W, or 45 W for the models that quote 45 W.
Xiaomi or OPPO: the brand's own charger and cable for headline speed; otherwise a charger with PPS.
Sharing one charger across a family of different phones: a PD charger with PPS covers the most ground.
For cables, see our guide on why USB-C cables differ.
Key takeaways
iPhones need USB PD; Galaxy phones need PD with PPS; Pixels are fastest with PPS.
Xiaomi and OPPO reach full speed only with their own charger and cable, then fall back to PD or PPS.
Read the output lines: PDO steps, PPS ranges and AVS, and multiply volts by amps.
No "PPS" on the label means no PPS, whatever the total wattage.
