> The lower end of the spectrum is for phones, going through daily charge/discharge cycles.
With iPhones you can replace the battery for a small fraction of the cost of a new phone. Plenty of people are using 5+ year old phones without doing so, it really depends on how much time you spend on the device per day and if you’re recharging mid day. Deep discharges drastically shorten lifespan, but again just get a new battery.
The true cost of replacing an iPhone battery isn't the quoted dollar amount.
It's the cost of being without your phone for an indeterminate period of time if you have to ship it to Apple for the battery replacement due to not living near an Apple Store.
With iPhones you can replace the battery for a small fraction of the cost of a new phone. Plenty of people are using 5+ year old phones without doing so, it really depends on how much time you spend on the device per day and if you’re recharging mid day. Deep discharges drastically shorten lifespan, but again just get a new battery.