It's not uncommon for Google (or other hardware manufacturers) to make subtle changes to devices post-release to fix problems that went unnoticed before the device hit hundreds of thousands users. That's exactly what happened with the Nexus 4, and it looks like the Nexus 5 is getting some hardware modifications of its own, as well.

As pointed out by XDA user shinral, the updated model has more rigid power and volume buttons, the SIM tray fits flush with the body of the phone, and probably the most visually noticeable difference, the speaker grill holes are now larger.

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