Short answer
MagSafe is Apple's magnetic charging for iPhone. Qi2 is the open standard built on the same magnetic idea, so Qi2 chargers snap onto an iPhone too. For your case, the question is the same for both: it needs built-in magnets, or the charger won't line up.
MagSafe, Qi2 and Qi2 25W
MagSafe arrived with the iPhone 12. A ring of magnets around the charging coil snaps the charger into the right spot, so it charges well every time. Qi2 is the Wireless Power Consortium's version of the same idea, based on Apple's MagSafe. The newer Qi2 25W (also called Qi2.2) raises the top speed (Belkin).
| MagSafe | Qi2 | Qi2 25W | |
|---|---|---|---|
| Made by | Apple | Open standard | Open standard |
| Magnetic snap | Yes | Yes | Yes |
| Top speed | Up to 25 W | Up to 15 W | Up to 25 W |
| Works with | iPhone 12 and later | iPhone 12 and later, plus many Android phones | Newer phones, older ones at their own top speed |
In practice they work the same way: put the phone on the charger and the magnets do the rest. A Qi2 charger and a MagSafe charger at 15 W charge an iPhone just as fast (Macworld).
How fast your iPhone charges
The top speed depends on both the phone and the charger. The phone always charges at the lower of the two.
25 W
Top wireless speed on iPhone 17, 17 Pro and 17 Pro Max with a 25 W charger
| iPhone | Top wireless speed |
|---|---|
| iPhone 12 to 15 | 15 W |
| iPhone 16 and 16 Pro | 22 W |
| iPhone 16 Plus and 16 Pro Max | 25 W |
| iPhone 17, 17 Pro and 17 Pro Max | 25 W |
| iPhone Air | 20 W |
Speeds with a charger certified for them, via Macworld. For the iPhone 18 models, check Apple's tech specs for your phone.
Does the extra speed matter? It helps when you top up for a few minutes before you leave. Overnight, or on a desk all day, a 15 W charger gets the phone full long before you pick it up.
What your case has to do
Without a case, any iPhone 12 or later snaps to both MagSafe and Qi2 chargers. With a case on, the phone's own magnets sit further from the charger. A case without magnets can make the charger slip, line up badly or fall off.
The RD Case V4 has strong MagSafe magnets built in, in a ring that matches the phone. MagSafe and Qi2 chargers snap on and charge through the case, and card holders and car holders hold on too.
Which charger to pick
Pick by where you charge. All three snap onto the RD Case V4 with magnets.
Bedside or desk
MagSafe Charger Up to 15 W, 1.5 m USB-C cable
iPhone, AirPods and Watch
3-in-1 Power Station 15 W for the iPhone, folds to 2.5 cm
In the car
MagSafe Car Holder With or without wireless chargingGood to know. The car holder doesn't fit round air vents.
FAQ
Is Qi2 the same as MagSafe?
Almost. Qi2 is based on Apple's MagSafe and uses the same magnetic snap. MagSafe is Apple's own system, while Qi2 is an open standard that other brands and Android phones use too.
Will a Qi2 charger work with my iPhone?
Yes, on iPhone 12 and later. The phone snaps on and charges at up to 15 W, or faster with a Qi2 25W charger on a phone that supports it.
Do MagSafe and Qi2 chargers work through a case?
Yes, if the case has built-in magnets that line up with the phone. The RD Case V4 has strong built-in MagSafe, so chargers snap on and charge through the case.
Do I need a 25 W charger?
Only if you often need a quick top-up and your iPhone supports more than 15 W. For overnight charging, 15 W is plenty.
Can older iPhones use a MagSafe charger?
iPhone 8 to iPhone 11 can charge on many MagSafe and Qi2 chargers, but slower and without the magnetic snap, because they have no magnets.
RD Case V4
Made for MagSafe and Qi2
1 mm thin, with strong built-in MagSafe that keeps chargers and accessories in place.
Shop RD Case V4
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