iPhone 25W MagSafe Charging Compatibility by Model

Apple's current support page and an independent report from Techtest describe two different wireless charging ceilings for iPhone 16-series models, and the gap hasn't closed. Apple lists 22.5W as the peak MagSafe wattage for iPhone 16 and iPhone 16 Pro (Apple Support, updated 6 weeks ago).

Techtest reported that iOS 26 reportedly enabled 25W charging on those same phones through qualifying Qi2.2 pads, a claim Apple's cited support page doesn't address (Techtest, 13 months ago). That gap matters because iPhone 25W MagSafe charging compatibility varies sharply by model, and the number printed on a charger's box does not necessarily match what any specific iPhone is rated to pull.

This guide starts with Apple's current published figures, lays out the adapter requirements those figures depend on, then walks through what Techtest and ChargerLAB actually tested, and where those tests stop short of confirming anything universal.

Which iPhones support 25W MagSafe charging

Apple's support page assigns a peak MagSafe wattage by model, and only two current iPhones sit at the top of that list: iPhone 16 and iPhone 16 Pro, at 22.5W, not 25W (Apple Support, 6 weeks ago).

(Apple Support, 6 weeks ago; Apple Support, 6 days ago)

Apple markets its current MagSafe Charger as capable of up to 25W peak power delivery, but it also says actual delivered power varies by iPhone model, adapter wattage, and system conditions (Apple Support, 6 weeks ago). In the per-model figures on that page, the highest named ceiling is 22.5W, for iPhone 16 and iPhone 16 Pro specifically. Apple's list doesn't separately name the iPhone 16 Pro Max, which happens to be the exact model used in the independent tests discussed below, so its figures shouldn't be assumed identical to the 22.5W ceiling without confirmation.

15W vs 25W MagSafe charger: matching the adapter to your iPhone

iPhone MagSafe charging speed is set by the phone model and the adapter feeding the charger, not just the wattage printed on the box. Apple's 15W MagSafe charging for older iPhones requires its own 20W-or-higher USB-C adapter, or a comparable third-party USB-PD adapter (Apple Support, 6 days ago).

For iPhone Air, 16, and 16 Pro to reach their documented ceilings, Apple's 25W MagSafe charger requirements call for an adapter rated at least 15V/2A, though delivered power still depends on the phone model and system conditions (Apple Support, 6 weeks ago). A lower-wattage adapter, as little as 12W at 5V/2.4A, still charges the phone, just more slowly (Apple Support, 6 weeks ago).

A charger labeled Qi2 or Qi2.2 doesn't automatically mean 25W on an iPhone. Manufacturer claims and Apple's own per-model figures don't always line up, as the iPhone 16 dispute below shows.

Apple's MagSafe charger vs third-party Qi2.2 pads for iPhone 16

Apple documents one specific pairing for peak power on supported models: its own MagSafe Charger with an adapter rated at least 15V/2A (Apple Support, 6 weeks ago). The Qi2.2 standard itself reportedly raised the universal wireless ceiling from 15W to 25W, according to Techtest, a standards-level change the outlet attributes to Qi2.2 rather than to any specific charger brand (Techtest, 13 months ago).

Techtest's specific claim goes further: the outlet reported that iOS 26 reportedly enabled 25W charging on iPhone 16 models through compatible Qi2.2 chargers, testing the behavior with UGREEN MagFlow models (Techtest, 13 months ago). Apple's cited support page lists 22.5W for iPhone 16 and iPhone 16 Pro and doesn't mention the third-party Qi2.2 result Techtest reported (Apple Support, 6 weeks ago).

In that same test, Techtest measured a 25W Qi2.2 setup finishing a 5%-to-80% charge about 12 minutes faster than a 15W setup, 1 hour 5 minutes versus 1 hour 17 minutes, though the outlet disclosed it measured the charger's power draw rather than power delivered to the phone (Techtest, 13 months ago). A Qi2.2-certified or up to 25W label on a third-party charger remains the manufacturer's claim, not an Apple-confirmed spec, until that discrepancy closes.

What one iPhone 16 Pro Max test shows about 25W charging speed

ChargerLAB's numbers come from a single setup: an iPhone 16 Pro Max, Apple's 30W wall adapter, and Apple's own 25W MagSafe Charger, held in a controlled 25°C thermotank (ChargerLAB, 21 months ago). Input power held near 29W for about five minutes, an amount ChargerLAB estimated at roughly 25W after accounting for losses, before stepping down through 21W, 10W, and 4W stages (ChargerLAB, 21 months ago).

The phone reached 50% at 34 minutes, 80% at 1 hour 10 minutes, and a full charge at 2 hours 23 minutes, a total ChargerLAB describes as similar to the prior-generation 15W charger (ChargerLAB, 21 months ago).

Both ChargerLAB and Techtest ran their numbers on an iPhone 16 Pro Max rather than the iPhone 16 or iPhone 16 Pro that Apple names at 22.5W, so neither is a controlled test on the exact model Apple's own figures cover. For the tested setups, both reports point the same direction: 25W's advantage shows up early in a charging session, not as a proportionally shorter full charge.

Hard caps and taper that slow charging regardless of wattage

Some limits have nothing to do with the charger's rating. Connecting a wired USB-C or Lightning accessory, like headphones, while charging wirelessly triggers a fixed regulatory cap: 7.5W for iPhone 15 and earlier and for the iPhone 16 family, 10W for iPhone 17 Pro and iPhone 17 Pro Max, and 16W for iPhone 18 Pro, iPhone 18 Pro Max, iPhone 17, and iPhone Air (Apple Support, 6 weeks ago). If an iPhone is plugged into a wired power source while sitting on a MagSafe charger, it charges exclusively through the wired connection; MagSafe stops contributing regardless of the pad's wattage rating (Apple Support, 6 weeks ago).

Temperature adds a softer limit. Apple says software might limit charging above 80% if the battery gets too warm, a dynamic protection rather than a fixed ceiling (Apple Support, 6 weeks ago). ChargerLAB recorded a surface temperature of 41.2°C at the 15-minute mark of its 25W test, cooling to 39.4°C by 30 minutes, readings that occurred alongside the power step-downs in that single test rather than a proven causal link (ChargerLAB, 21 months ago).

The phone also flags when a charger is underperforming. On iOS 18 and later, a Slow Charger message appears on the lock screen and in Settings > Battery when a higher-wattage charger could improve the charging experience (Apple Support, 7 months ago). iOS 26 added a separate Incompatible Charger message in Settings > Battery, which appears when iOS detects a connected charger that isn't charging the phone at all, a different problem than simply charging slowly (Apple Support, 7 months ago).

What the conflicting figures mean for buyers

Apple's documentation, Techtest's report, and ChargerLAB's test each cover a different piece of this picture, and none of them resolves the others. Apple's published figures put iPhone 12 mini and iPhone 13 mini at 12W, non-mini iPhone 12 through 15 models at 15W, iPhone Air at 20W, and iPhone 16 and iPhone 16 Pro at 22.5W, under Apple's published MagSafe limits (Apple Support, 6 days ago; Apple Support, 6 weeks ago).

Techtest reported 25W Qi2.2 charging on iPhone 16 models, but that result isn't reflected on the Apple page cited here, and both independent tests cited in this article used an iPhone 16 Pro Max rather than the iPhone 16 or 16 Pro model Apple names at 22.5W (Techtest, 13 months ago; ChargerLAB, 21 months ago).

For now, a 25W label on a third-party charger identifies the charger's claim, not a confirmed charging rate for every iPhone. A Slow Charger or Incompatible Charger message in Settings > Battery is worth investigating the charger and connection over, though neither message by itself proves the iPhone is defective or that a 25W mode is available (Apple Support, 7 months ago).