Hergen Lehmann <
hlehmann.ex...@snafu.de> wrote:
> - A removable back cover needs to be more sturdy, so it can survive
> removal by an untrained person. The current fashion to use an all-glass
> construction would probably not have happened with removable batteries.
I've never felt an all-glass case is a smart idea for a smart phone, or
any portable phone. It's for looks, not durability. Another reason
users end up replacing their working phones because the glass shattered.
Just what /functionality/ does an all-glass case lend to a smartphone?
One cited advantage is glass is more transparent to RF than aluminum.
That's quite evident anytime you add a case around the phone that is
metallic, or even has the mylar coating to make it shiny. Bars go down.
Is glass more transparent to RF than, say, plastic?
Ah, glass is more scratch resistant. Considering phone owners get rid
of their phones, on average, after 2.65 years, who cares about scratches
in a plastic backplate? However, it isn't your keys that scratch glass.
It's the lint in your pocket that has silica.
Glass is better for wireless charging then a metal backplate. Why do
they (e.g., Corning) keep comparing glass to metal? What non-glass
phone cases are using metal for the backplate? They spend all that
effort to design a phone with its various radios only to add shielding
with matal cases that block RF?
Glass makes the phone look pretty. I has a nicer feel to the hand than
plastic. Glass adds heft to the device which makes users think the
phone is more robust, like mouse manufacturers that add weights inside
to give it more heft. Nothing to do with being better for phone
operation. Considering how damn expensive are smartphones, many users
encapsulate their phone inside an armor case made of silicone and
plastic, so say goodbye to the glass look and feel. Glass is more
fragile and more frangible than plastic. Not only can the front side
(screen) get shattered, so can the backside.
Being trendy doesn't mandate being smart. It's about markekting, and
how susceptible are consumers.
> - Without a removable battery, there is less chance for the customer to
> fall victim to low-quality 3rd party batteries, which results in less
> service calls.
Which also means when the chemistry begins to fade (capacity wanes) or
fails (battery goes dead), consumers are more likely to buy another
phone than take their old one to a shop to pay for repair service.
Phone makers want consumers to see phones as consumable products, not as
repairable products.
When you buy a flashlight with replaceable batteries, when do you
replace the flashlight? When the batteries die, or when the flashlight
fails (also assuming the bulb is not replaceable)? It'd be the latter.
With rechargeable flashlights having sealed batteries, consumers don't
bother to replace the batteries, but instead buy a new flashlight.
Built-in obsolesence. Great for revenue. Bad for the environment.
For those that end up replacing their phones after 2-3 years, they don't
care about the serviceable versus non-serviceable battery argument. The
weak or dead battery will be someone else's problem. For those that
keep their phones until forced to discard them (e.g., when 2G got
dropped, discontinued support meaning no more OS updates meaning apps
eventually won't work on old phones), they run into the limited lifespan
of the chemistry for batteries, and would to easily replace the
batteries than dismantling the phone, or paying the labor overhead of a
shop doing the repair.
As for more integral design of the battery within the confines of the
phone to increase up-time, there isn't much that cannot also be done
with replaceable batteries, but the phone makers are more inclined to
get consumers buying more phones than more batteries. Instead of using
glass to add heft to the phone, make the backplate the battery to make
it larger and add more heft with more up-time.