Is it ghz band that makes 5.4ghz phones have better range/clarity vs 2.4ghz or hardware or something else?

Answer 1

GHZ has to do with frequency of the device. so depending on the area of use certain frequencies work better than others.

802.11b and 802.11g use various frequency bands within 2.4GHz

802.11a uses various frequency bands within 5.8GHz

Cordless phones currently appear to come in 900MHz, 2.4GHz, or 5.8GHz.
Note that some "5.8GHz" phones will transmit in one direction using
5.8GHz, but in the other direction using 2.4GHz.
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Very nice table describing radio frequency allocation:

http://www.commandline.net/Radio%20Frequency%20Chart1.htm
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The more things you have operating in a given frequency band, the more
problems you'll have. Cordless phones trounce Wifi communications,
Wifi communications may interfere with the sound on Cordless phones,
the more cordless phones you have operating at the same frequency the
more likely you are to have bad reception/transmission, and the same is
true of having a lot of computers/laptops/tablets/PDA's operating in the
same frequency band. Also, with b and g, bands can overlap significantly.
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Most 2.4GHz cordless phones are "spread spectrum' - in other words,
they stomp all over the range of spectra that your 802.11b and 802.11g
want to use - and these wifi technologies more cooperatively use one
portion of the 2.4GHz spectrum (generally user-selectable).
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I haven't heard of a way of restricting 2.4GHz cordless phones from
stomping on 802.11b/g, unfortunately. There should be a way of teaching
them to use a more limited range of the spectrum

Answer 2

Cordless phones with 5.8GHz do tend to have greater range than 2.4Ghz. This is partly due to the fact that higher frequency radio waves have a tendency to penetrate objects more effectively. There's also fewer sources of interference in that band range.

Answer 3

A 5.8gz phone has better range and clarity than a 2.4 gz phone of the same type, but
what is equally important in buying a phone is is look for digital frequencies versus analog. A 5.8gh analog phone will not be as clear or go as far as as 2.4gh digital frequency.

Answer 4

i think its the hardaware as clarity depends more on the signal strength which can only be achieved by a a hardware device

Answer 5

Robs answer all the way !