povo Launches ‘5G SA’ — No Extra Charge for Now; 5ch: ‘X (Twitter) Is in an Uproar’

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On August 25, KDDI and povo2.0 began offering 5G SA (Standalone) for the “Voice + Data” plan. The monthly fee is said to be free for now, but wording hinting at a future paid conversion, a SIM card reissue fee, and confusion over unclear naming when migrating to eSIM all drew attention on the thread.

On August 25, KDDI, Okinawa Cellular, and KDDI Digital Life began offering 5G SA for the “Voice + Data” plan under the online-only brand “povo2.0.” A compatible smartphone is required to use the service.

5G SA is a communication method that builds core equipment and base stations exclusively for 5G, without relying on 4G LTE infrastructure. Because it isn’t affected by congestion on the 4G LTE side, it makes high-speed, high-capacity communication easier to use. KDDI is rolling out 5G SA across its entire Sub6-compatible area, putting coverage at over 90%.

Existing povo2.0 users can also sign up, but reissuing a physical SIM card costs a 3,850 yen fee. The eSIM reissue fee is free for the time being. The monthly fee for 5G SA itself is currently free, but it may become an optional paid service in the future.

Source: ascii.jp / Original article here

2Anonymous2026/08/25(火) 19:28:36.56ID:PGjdqwB/
I'm fine with regular 4G, honestly.
3Anonymous2026/08/25(火) 19:33:19.04ID:QArevSnl
Careful — there aren't many SIM-free compatible models.
Even for the same phone model, plenty of SIM-free versions aren't supported.
4Anonymous2026/08/25(火) 19:34:17.63ID:EopfZmXr
Free? Well, obviously.
5Anonymous2026/08/25(火) 19:37:41.85ID:YCJjNHNK
Ah, I guess all that penny-pinching really paid off.
10Anonymous2026/08/25(火) 21:52:05.91ID:k1/TFHVX
Wait, it wasn't even 5G SA compatible until now?
11Anonymous2026/08/25(火) 22:16:11.68ID:1ceuuhdE
Are there any downsides to signing up for 5G SA?
Voice calls will still run over 4G, right?
13Anonymous2026/08/25(火) 22:22:48.82ID:r4rq+H7t
>>11
Probably just the fee if it eventually becomes paid.
Basically, connecting via 5G SA just means faster speeds — I don't think there's any real downside.
18Anonymous2026/08/26(水) 02:52:48.88ID:2vuUJdjz
>>11
> Are there any downsides to signing up for 5G SA?

One thing that's certain: this isn't just an "optional setting (subscription)" — you need an actual physical SIM swap.
Switching a physical SIM (pSIM) to 5G NSA requires a processing fee.

> Voice calls will still run over 4G, right?

There's no sign of VoNR (Voice over New Radio) anywhere yet.

Same kind of confusion as with the KDDI SIMs that already offer 5G SA… compatibility issues, maybe? We'll have to wait for more reports.
12Anonymous2026/08/25(火) 22:21:02.79ID:XT+Z1q0R
Total runaway win.
Makes me want to go back to povo.
14Anonymous2026/08/25(火) 23:24:12.68ID:Ywl6cd/G
So it only works if you're on the plan that includes voice calls?
Well, I've got no complaints with what I have now, so it's fine either way.
15Anonymous2026/08/25(火) 23:52:11.08ID:7Nh4+VOk
5G drains the battery insanely fast, wish they'd cut it out.
16Anonymous2026/08/26(水) 00:48:46.85ID:+atPiIZH
As a die-hard 4G user, it'd honestly help if everyone else switched to 5G SA lol (less congestion for the rest of us)
17Anonymous2026/08/26(水) 01:53:24.75ID:AzhZL5o9
Staying up all night until 9:30.
Can't wait for 5G SA, huff huff.
19Anonymous2026/08/26(水) 03:49:18.42ID:muvhmsu6
More importantly, add more payment methods already, damn it.
It's a top-up purchase system, so au PAY or something similar should work fine too.
20Anonymous2026/08/26(水) 05:58:59.15ID:AzhZL5o9
>>19
Don't you have a credit card?
21Anonymous2026/08/26(水) 05:59:03.82ID:/hT3kWC3
KDDI finished clearing out its stock of 5G SA-incompatible devices, and since Rakuten Mobile doesn't support it, they announced this rollout.
An all-5G standalone network is something Rakuten Mobile should've been the one to pull off first — getting beaten to it must sting a lot.
22Anonymous2026/08/26(水) 08:27:12.85ID:5UFfSTpr
I keep 5G turned off to save battery.
23Anonymous2026/08/26(水) 10:32:55.76ID:8psbZZO6
Turns out my neighborhood isn't even in the 5G Sub6 coverage area. Damn it.
24Anonymous2026/08/26(水) 12:10:41.67ID:sKkootoD
5G SA is supposed to be what real standalone 5G service looks like,
yet they're clearly planning to charge extra for it as an option. Greedy.
26Anonymous2026/08/26(水) 15:17:54.09ID:VnuSbhl0
Docomo also said at first it was a trial period so there'd be no 5G fee,
but once 5G actually spread, talk of charging for it just quietly disappeared.
27Anonymous2026/08/26(水) 18:39:36.57ID:+atPiIZH
Apparently X (Twitter) is currently in an uproar over this.
28Anonymous2026/08/26(水) 20:46:03.57ID:yjTSbZ5v
Migrated from regular povo2.0 today.
It was eSIM to eSIM, and I figured the eSIM would just get overwritten, but instead it got installed into an empty slot labeled "Travel" — took me an hour of confusion to figure out what happened.
If you're about to do this, watch out.
If that empty eSIM slot already has a name on it, you won't notice, and you'll have a really rough time.
35Anonymous2026/08/27(木) 06:12:58.87ID:P3uLK1BV
>>28
Assuming it would get overwritten is a bit odd, but
yeah, I see how that kind of trouble could happen.
39Anonymous2026/08/27(木) 09:02:32.88ID:YVucqT6c
>>28

That's just how iPhone works, isn't it?
The iOS on that device just assigns the new SIM a label from its existing list of candidate names, picking one that isn't already in use.

Also, weren't you asked something partway through that you just missed?
29Anonymous2026/08/26(水) 21:17:14.75ID:+atPiIZH
Sounds like you need to delete the old povo2.0 eSIM before activating the new 5G SA eSIM, or things get messy.
30Anonymous2026/08/26(水) 21:27:34.78ID:yjTSbZ5v
>>29
Exactly that.
It's not written in the instructions anywhere.
You can delete it afterward too, but then it shows up under the new eSIM.
If you'd renamed anything in your eSIM folder, it'll be totally confusing.
31Anonymous2026/08/26(水) 21:46:56.09ID:eW8WZQyR
I use my povo SIM for calls,
but I've got 5G data turned off, so this is wasted on me, right?
32Anonymous2026/08/26(水) 21:50:18.20ID:yjTSbZ5v
I only ever use povo when I'm in a bind.
Also, I give my povo number out to people I'm not actually close with.
33Anonymous2026/08/26(水) 22:07:18.50ID:37LwzL/r
Doesn't really matter to someone like me who just buys a top-up once every six months to keep the line active.
34Anonymous2026/08/26(水) 22:14:32.64ID:yjTSbZ5v
Let's switch over while it's still free.
36Anonymous2026/08/27(木) 07:53:29.54ID:kpPrC7su
Checking the base station map, there isn't a single 5G SA-compatible base station anywhere near me.
And the only compatible devices are ridiculously expensive high-end smartphones.
Even if I wanted to use it, I don't have the environment for it.
37Anonymous2026/08/27(木) 08:00:56.68ID:5CBx5cG8
KDDI only has about 40,000 SA-compatible 5G base stations nationwide right now.
38Anonymous2026/08/27(木) 08:19:45.88ID:mLaDCeJy
My backup phone where I just buy a few-hundred-yen top-up every six months.
40Anonymous2026/08/27(木) 09:13:34.94ID:3P71wBhZ
It's weird that the Google Pixel 10a specifically doesn't support 5G SA.
UQ supports it, so it shouldn't be a hardware issue.

*This article is compiled from excerpts and a summary of the 5ch (Business News+) thread: [Telecom] povo Finally Supports “5G SA” — No Extra Charge for Now.

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