The difference between a smart phone and a non-smart phone is whether there is a CPU.
Generally speaking, the brand with the highest CPU in mobile phones is Nokia.
Operating systems such as S40 S60 are patents owned by Nokia.
What you said upstairs is obviously wrong. If you can transfer software, it belongs to the category of smart phones. Slow response means that the CPU frequency of your mobile phone is low and the running speed can't keep up.
Let's briefly introduce W5 18.
Mobile phone standard GSM
GPRS support
Support frequency band GSM(900/ 1800MHZ)
Mobile phone sliding cover type
Smartphone support
Time of listing: September 2007
Origin China