Choosing the $100 Google Store credit might seem the better option, but there is a caveat there, too. The discount applies only to Pixel phones and only to devices that are not otherwise on sale.
The big question: Why?
As we noted when Google first announced the update, a lot of Pixel 4a batteries are now four to five years old. Some have been kept as secondary (or “junk drawer”) phones, and many are already at diminished capacity, especially when at low charge levels and in cold conditions. If every Pixel phone this old received a battery-minded final update, intended to prevent sudden shutdowns (akin to Apple’s originally unannounced iPhone slow-down fixes), there wouldn’t be quite the amount of outcry and confusion there is now.
But Google has not said why certain Pixel 4a phones are “Impacted Devices” and others are not. It has not clarified what issue is so notable or severe as to push an automatic update to a phone from 2020, such that its battery life is all but decimated. No news or community reports have surfaced yet of Pixel 4a devices causing fires, or even simply failing to function, after four years. It’s an automatic update with a strong fix, but for what?
Google’s support page only states that the update will “improve the stability of their battery’s performance.” This is true in the sense that, if you stop using a severely capped Pixel 4a entirely, its battery can provide a stable amount of output (none) into the future.
Google support staff have suggested to more than one 4a owner that yet another future update could force a factory reset and automatic update. That hasn’t come to pass, at least in the timelines suggested by support staff. But all of this raises the question as to how this confusing process is better than a traditional recall, if there really is some kind of danger, to device or human, with a certain set of batteries.