“I can still remember a time when I knew more than my phone”—referring to the days before smartphones—is a one-line saying that has been printed on several images. ““@clarkekant: I can still remember a time when I knew more than my phone” was posted on Twitter on April 2, 2011.
 
     
Wikipedia: Smartphone
A smartphone is a handheld personal computer with a mobile operating system and an integrated mobile broadband cellular network connection for voice, SMS, and Internet data communication; most if not all smartphones also support Wi-Fi. Smartphones are typically pocket-sized, as opposed to tablets, which are much larger in size. They are able to run a variety of software components, known as “apps”. Most basic apps (e.g. event calendar, camera, web browser) come pre-installed with the system, while others are available for download from places like the Google Play Store or Apple App Store.
     
Twitter
Glenn Beck’s Peck‏
@GlennBecksPeck
RT “@clarkekant: I can still remember a time when I knew more than my phone.”
4:13 PM - 2 Apr 2011
   
Twitter
Gagsparilla‏
@4Ayes
RT @clarkekant: I can still remember a time when I knew more than my phone.
7:30 PM - 2 Apr 2011
 
Twitter
FunnyOneLiners‏
@Funnyoneliners
I can still remember a time when I knew more than my phone.
RT @clarkekant
12:27 PM - 3 Apr 2011
         
Google Books
More One Liners, Jokes and Gags
By Grant Tucker
London, UK: Biteback Publishing Ltd
2013
Pg. ?:
I can still remember a time when I knew more than my phone.
 
Funny Status
I can still remember a time when I knew more than…
March 18, 2013 Phone Status Updates
I can still remember a time when I knew more than my phone.
   
Warren Manor
65 jokes that will make you smile
Author: HCF Management October 17, 2017
(...)
I can still remember a time when I knew more than my phone.
 
Twitter
Bill Murray‏
@BiIIMurray
I can still remember a time when I knew more than my phone.
4:15 PM - 22 Dec 2017