用法不同。pixel 4和4xl区别是用法不同，
④摄像头。Pixel 4系列沿用1200万像素主摄，并增加一颗1600万像素的长焦副摄。Pixel 4在长焦+主摄+AI基础上将变焦体验更优化，可以拍高达30倍变焦，不模糊。
⑤语音助理。新一代的语音助手Google Assistant是以往语音助手速度的10倍，采用更新的语音模型，运行耗费的时间少。
缺点：
①硬件水平没有有效提升，从发布前
"Pixel 4"和"4xL"是两个不同的概念，它们之间没有直接的关联。
"Pixel 4": This refers to the fourth generation Google自家品牌的智能手机型号. It is part of the Google Pixel line and was released in 2021.
"4xL": This seems to refer to a specific feature or feature set that is related to the fourth generation Google自家品牌的智能手机 model, but without further context or information, it's difficult to provide a clear answer.
If you have more details or context about what you are referring to when talking about "4xL," please let me know so that I can provide a more accurate explanation.
