The Galaxy S25 Ultra has been hyped as the best-designed iteration of its line to date since its launch; however, it has also became apparent that it is in fact less capable than the thicker, heavier and longer S24 Ultra in certain areas.
The new flagship has lost the ability to support One UI's Air Actions, as they require an S Pen with Bluetooth functionality. It was once thought that they might be restored to the S25 Ultra with a simple stylus upgrade - however, Samsung has declared it will not be selling those. Nevertheless, it now seems that the OEM was indeed considering it during the smartphone's development.
The S25 Ultra's internals do in fact include the inductive coil necessary to charge an S Pen in its silo, as found by popular YouTubers JerryRigEverything and PhoneRepairGuru during their respective teardowns of the device.
Unfortunately, that does not really matter, as the S25 Ultra's S Pen is devoid of the inbuilt capacitor normally found within the accessory, as demonstrated by JerryRigEverything's host Zach Nelson by the simple expedient of snapping it in half.
In addition, the YouTuber observed that the S24 Ultra's S Pen refuses to "click into place" properly when inserted into the S25 Ultra instead in any case.
On the other hand, the device-design enthusiasts also found it markedly easy to remove the rear panel (in the presence of a good heat-gun and suction tool, that is) - not to mention the battery, which has a new and improved pull-pouch that is also re-usable.
The potentially commendable feature is also present in the vanilla Galaxy S25 (currently available for $799.99 on Amazon), as PBKReviews could attest during a teardown of that device.
The S25 also has the same new cosmetic stick-on camera rings as its Ultra sibling - which, despite their increased dust-magnet potential, might actually make it easier to replace the devices' rear-facing lenses if necessary.