different internet speed in debian and smart phone

[kaye n <guikaye@gmail.com>]

Hello Friends!

My laptop, if it matters:

Kernel: 4.19.0-6-amd64 x86_64 bits: 64 Desktop: Xfce 4.12.4
Distro: Debian GNU/Linux 10 (buster)

This is a familiar scenario:

Firefox browser in Debian. 

Internet speed checker is fast.com

Speed is 670kbps

Built-in browser of Samsung phone

Internet speed checker is fast.com

Speed is 14mbps

I am quite sure I don't get this much disparity with another Linux distro, as well as in Windows 7.

Thank you for your time!
Kaye