To me, the big downside is, what if the battery stops taking a charge before I am ready to trade the phone in for a Note eleven? Will there even be anyone who can replace the battery without (a) mailing the phone in and living without it for a few weeks, (b) damaging the seal so the phone isnt water resistant any more, (c) charging an exorbitant fee.
This. This all day long.
I have few concerns about a [insert device with sealed battery here] being all-day strong on day one, month one, and even maybe year one. In other words, about as long as the warranty lasts.
But having to replace a $(high three digit number) phone (or pay a couple hundred dollars to have someone with special tools fix it) less than two years in because a $20 part wore out due to normal wear and tear makes about as much sense to me as welding a permanent casing around a 100,000-mile timing belt in a car.
I still have a Nexus 10, and thanks to the modding community it is running Nougat. And thanks to a clever "sealed battery" design that really means "you need to own a spudger and have 20 minutes to spare to swap this thing" it's also got pretty darned good battery life.
If my Note 4 wasn't the AT&T model, I could probably run something more current on that. Even as it is, it's still doing all I need - but there will come a day not long from now when work will require a more recent OS to connect to corporate things.
So now I find myself torn between keeping the Note 4 and holding out until the last in teh hopes that maybe someone will go back to replaceable batteries before then - or going with a V20 in the hopes that it will get more than a token Android upgrade (if that, LG is not strong in that area!) and I can get a couple of years out of it.
I suppose I could also wait until a few months after some other flagship comes out and check its iFixit score to see how hard/risky a battery swap is. Some of the "sealed battery" units really aren't that horrible. Some are - well - when instruction one says "set your heat gun to 900...."
#NopeNopeNope
Decisions, decisions.... LOL