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From: Martin Brown <'''newspam'''@nonad.co.uk>
Newsgroups: sci.electronics.design
Subject: Re: "Safe" cell phone WiFi capabilities?
Date: Fri, 17 May 2024 09:20:04 +0100
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On 17/05/2024 07:11, Don Y wrote:
> For "nominal" cell phones (i.e., taking into consideration
> that not ever subscriber buys The Latest and Greatest),
> what's the "base" WiFi capability one would feel comfortable
> assuming?  ac?  ax?

Probably n now in most places with modern chipsets. Cell phones have a 
lifecycle of about 5 years before the battery swells and dies.

> If you extend that to include *all* phones currently in service
> (e.g., 4G onwards), where would you put the cutoff?  n?  g?
> 
> [US market]

Probably around n for the Wifi link but you can still find places in 
rural areas where the cell phones are on 2.5G mobile connections. Only 
in the cities can you safely assume 5G and adequate backhaul.

4G mobile broadband service tends to saturate when large crowds all try 
to do the same thing at once (eg at football matches).

-- 
Martin Brown