Pixel 4 came in two version Pixel 4 and Pixel 4 XL in colors White, Black and Orange.

In October 2019, Google unvieled its Pixel 4 smartphone that came with outstanding features and functions presenting great competion for the rivals in Andriod market the likes of Samsung, OnePlus, Huawei and many others.

Pixel 4 came with a larger camera that could capture details beyond imaginery, advanced AR, motion detection and many more as you can see here https://youtu.be/_F7YRde8DuE.
However, the update done and annouced this week, just added extras for Pixel 4 lovers and owners. Here are some exciting ones.

Pause with Motion Sense: Enjoy your music - pause and resume music with a tapping gesture above the phone. So you can easily pause music when you're having a conversation, without even picking up your phone.

Selfies on Pixel 4 got better: Your front-facing camera can now create images with depth, which improves Portrait Blur and color pop, and lets you create 3D photos for Facebook.
Dark theme scheduling: Now you can schedule Dark theme based on local sunrise and sunset times. By the way Google made this feature available for most Pixel models that is Pixel 2, 3, 3a, 4 and will be available globally.

Your Rules, Your Phone: You can automatically enable certain rules based on WiFi network or physical location. Customize your ringtone to go silent when you connect to your office WiFi, or go on Do Not Disturb when you walk in the front door of your house to focus on the people and things that matter most.

Fun Time - Duo AR Effects: Get creative with AR effects you can use live on your video call with friends. They change based on your facial expressions. Together, they give your Duo calls a whole new layer of fun.

Customizable Emojis: The new emoji update gives you 169 new emojis to represent a wider variation of gender, race and skin tones and more combinations to better reflect reality.

NOTE: Pixel 4 came in two version Pixel 4 and Pixel 4 XL in colors White, Black and Orange.