We’ve come a long way from simply sending out character-restricted text messages to one another for communicating. Thanks to the globalization of cellular network and mobile devices that can do more than one can imagine, communicating through voice and video calls is as easy as installing an app. But the modern-age dilemma is deciding which app is best for video calling, especially for those times when the network collectivity is spotty.

Related: 7 must-know features of the Google Duo that you can use now

YouTuber Antony Medhat took it upon himself to find out which video calling service – Google Duo, WhatsApp, or Facebook Messenger was the best. While conducting a similar experiment on 4G high-speed data last year, he tried the same test on a slow network connection to find out which app offers the best quality video calling.

Antony even shared the finding with Google Duo’s lead engineer, Justin Uberti, who was happy to acknowledge it.

https://youtu.be/TPReYFjMtJ4

Google Duo – Even on a slow network connection, Google Duo seemed to operate optimally, although the frame rate of the video was significantly reduced.

Facebook Messenger – The video quality while streaming with Facebook Messenger was tolerable, but the video was significantly slow and choppy at times with visible lagging throughout.

WhatsApp – When trying to connect the first time, it app kept reconnecting but eventually started with a poor video quality and severe lag. The images were pixelated, although the lag was noticeably lower than Facebook Messenger.

The results are simply obvious when you check out the video, where Google Duo comes out on the top by an easy margin. So the next time someone asks you which video calling app performs best on a poor network connection, you’ll have the answer.