An upper-end mobile phone can do the SHA-256 bitcoin mining algo at around 50 times per second.

An Antminer S9 performs that algo at 14,000,000,000,000 times per second, and each day earns 0.00004433 bitcoin, worth about $1.

In other words, that single $125 rig can hash away at a rate that is equal to that of 280 million mobile phones.

You would need to mine on your mobile for 173 years to earn your first sat.

I just tipped you 1 sat, and saved you 173 years of mining.

Mining on anything but an ASIC is a complete waste of time, a fact that is even true for certain older model ASICS that cannot compete with the modern incarnations currently competing on the network. To put it into perspective, CPU and GPU mining would be like mining for gold with a teaspoon while all your competition is right next to you with bulldozers and excavation equipment.

Can You GPU Mine Bitcoin? #138148 https://thebitcoinmanual.com/articles/can-gpu-mine-bitcoin

Web/browser mining is a straight scam dude.