Existing digital assistants such as the Amazon's Alexa and Google assistant are not screen-dependant but can be used by voice alone.

当前市场上的一些数字助理，比如亚马逊的Alexa和谷歌助理并不带有摄像头，只能用声音对话。

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Chen explained last week, if your friend sends you a picture of his dog on Allo, Google Assistant will not only recognize that it's a dog, but it will also tell you the breed.

上周撰文解释，若是朋友通过Allo给你发一张狗的照片，谷歌助理不仅能认出这是一条狗，而且还能告诉你狗的品种。

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Apple Home Pod has Siri, Google Home has its Assistant, and the upcoming Galaxy Home device will have Bixby.

Apple Home Pod 有 Siri，谷歌 Home 有助手，而即将推出的 Galaxy Home 设备将配备 Bixby。

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Like most Android phones, the S4 comes with a suite of useful Google apps, including Gmail, YouTube, Google Maps and the voice assistant Google Now.

NPR: Review: Galaxy S4 Decent, But Filled With Gimmicks

The Google Now personal assistant can tell you if there's a traffic jam on your regular route home and suggest an alternative.

NPR: Practically Human: Can Smart Machines Do Your Job?

The Note 10.1 launched last fall, but it received a software update with a new version of Android and a slew of other features like the voice assistant Google Now, which is a lot more impressive than Apple's original Siri.

CNN: How Samsung is out-innovating Apple