Tool
Charger Match
Three questions, no lookups and no requests to anything. It tells you which shape of charger fits your phone, and what a shared total actually comes to once more than one thing is plugged in.
Charger Match
Which charger shape fits the phone you own
Your phone
Devices charging at once
Where you are charging
What that comes to
iPhone 15, 16 and 17 uses USB-C and charges over USB Power Delivery over USB-C. Magnetic accessories: built-in magnet ring, no case required. So you want a wall charger, with a cable that has the right ends for USB-C.
Share per device = stated total ÷ devices charging
Take a unit stating 45W total: 45 ÷ 1 = 45W as an even share across one device. Most manufacturers do not publish how they actually divide it, so an even split is an illustration rather than a specification.
Listings in our data that state this configuration
Anker Nano 45W Smart Display Charger
The listing states: 45W max, GaN, a 180 degree foldable plug, a single USB-C port, and no cable in the box.
View on AmazonAnker 20W USB-C Charger Block, 2-pack
The listing states: 20W USB-C, two blocks with two cables.
View on Amazon25W USB-C Wall Charger with 10 ft Cable, 2-pack
The listing states: 25W for Samsung super fast charging.
View on Amazon
Real charging speed depends on the phone, the cable, the protocol both ends support, and the battery temperature at the time. Nothing here predicts how fast a particular phone will charge from a particular charger, and no wattage on a box does either.
The one formula this tool uses
Share per device = stated total ÷ devices charging
It is deliberately the simplest possible model, because the honest answer is that almost no manufacturer publishes how their charger divides its budget. An even split is an illustration of what a shared total means, not a specification of what any particular unit does. Where a listing names a figure for a specific port, that figure is worth more than this calculation and the tool shows it.
Real charging speed depends on the phone, the cable, the protocol both ends support, and the battery temperature at the time. This tool does not predict it and neither does the box.