Google's December feature drop brings Pixel 5 features to older Pixels

The December update for Pixel devices is now available, and it brings some features from its latest Pixel to older devices. In the US, Pixel 3 devices and later models will get Assistant's "Hold for Me" feature, which lets the voice assistant wait for someone to come on the line if you're put on hold. Older Pixel devices also now get access to Extreme Battery Saver mode, which allows you only to run the most crucial apps so you can extend battery life further.
As for the new Pixel 5 and Pixel 4a 5G, these get some improvements, too. Google makes GPS on these smartphones more accurate on foot, but it isn't rolling out to all available countries yet. There are also new context-aware battery features, like Adaptive Battery and Adaptive Charging.