Why is it that Bluetooth (which operates at similar frequency to Wifi) so unreliable whereas Wifi has proven to be reliable and support incredibly fast speeds?

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Why is it that Bluetooth (which operates at similar frequency to Wifi) so unreliable whereas Wifi has proven to be reliable and support incredibly fast speeds?

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_corwin commented

Wifi can transmit at a higher power level — to better punch through walls etc. Bluetooth is designed for long battery life, so it sacrifices reliability and performance in order to use less power.
beauchh commented

WiFi channel bandwidth, occupying around 20 MHz is much wider than Bluetooth’s 1 MHz channel bandwidth, which is why one ‘supports incredibly fast speeds’ whereas the other does not. As for reliability, this is largely due to power, and equipment quality ($2 wireless mouse BT adapter vs. $20 802.11ac card in your laptop).