Many industry experts believe that Wi-Fi will coexist with 5G and be a key part of many 5G use cases.
From 1G through 4G (LTE), licensed spectrum was exclusively used with the mobile cellular networks.  However, with the carryover of unlicensed 5GHz (LTE-LAA) and the planned inclusion of unlicensed 6GHz combined with licensed spectrum portfolio, 5G is differentiated from Wi-Fi 6.  5G now has the potential to carry traffic from both 5G mobile devices and Wi-Fi devices on the same radio network backbone. The long-term plan is to use spectrum from low, mid, and high band frequencies. Low band is less than 1GHz, mid-band is between 1GHz and 6GHz, and high band is everything else above 6GHz including the millimeter wave frequencies
Wi-Fi 6 utilizes unlicensed spectrum exclusively. Wi-Fi 6 works in the 2.4 GHz and 5 GHz bands, which are the existing Wi-Fi bands.
Wi-Fi 6 also continues to operate in the 900 MHz band and 60GHz band. The 900Hz band (HaLow) offers longer range and lower power connectivity for low bandwidth IoT applications.
The 60GHz band, in the millimeter wave region of spectrum, is well suited to deliver multi[1]gigabit speeds, but due to limited propagation, distance is shorter than the other frequencies in this standard. The use of these bands is also unique to Wi-Fi 6 and previous Wi-Fi versions.