Now Playing: Samsung unveils Galaxy S8 smartphone

Now Playing: Samsung unveils Galaxy S9 and S9 Plus smartphones

Now Playing: Samsung Galaxy Note 8 rumored to have massive 6.3-inch display

Now Playing: Samsung Issues New Warning for Galaxy Note 7s

Now Playing: Apple releases the iPhone XR

Now Playing: Google launches next generation smartphones

Now Playing: Self-driving cars in Paris

Now Playing: YouTube goes down worldwide for about an hour

Now Playing: Owner of dating sites to repay users nearly $1M

Now Playing: Facebook tests un-send button for its Messenger app

Now Playing: Samsung announces new flip phone

Now Playing: Apple reportedly working on new digital video service

Now Playing: Super smart teen girls from India invented an app to deal with e-waste

Now Playing: Google announces next generation smartphone

Now Playing: Google shuts down its social media site after security breach

Now Playing: Google+ to be killed after bug exposed up to 500,000 accounts

Now Playing: SpaceX launch lights up night sky in Southern California

Now Playing: New hoax emerges on Facebook

Now Playing: Facebook users who decide to close their account now must wait a full 30 days

Now Playing: Honda will invest $2 billion in GM's driverless-car company