Wesley's Tool-Box

SK Telecom, the biggest mobile carrier in Korea, is the parent company of SK Planet, which owns Korea's 2nd largest online shopping mall, 11st (11번가, 11th Street). So it was natural to see that SKT would come up with a clone of Amazon Dash, which simplifies online ordering with the push of a physical button. It's called "Smart Button Kkuk(스마트 버튼 꾹)", and became available in September 19, 2016, about 18 months after Amazon Dash's announcement.

Initially affiliated with about 60 items in 11st and given away for free with first 50,000 orders of the website's "Now Delivery(NOW배송)" service (this itself is 11st's version of "Fulfilled by Amazon"), it's now able to order from more than 140 items and shipped for KRW100 (US$0.09) when ordering certain specially marked items through Now Delivery. As of this writing, the stock of these buttons have apparently run out, but I expect it to be replenished soon.


As with other SKT Smart Home devices, the button comes in a brown box with standardized instruction manual included. Looking at the device, the red button with 11st's logo on the left side is what you use to both pair and eventually order items online. The body is elongated to the right to house the battery. Like Amazon Dash, a removable hook is provided so that it can be hung.

Lots of companies are hopping on the wave of Internet of Things (IoT) these days, each trying to build an ecosystem of their own. Major Korean mobile carriers (SK Telecom(SKT), KT, and LGU+) are no different, each setting up proprietary efforts. I used to largely ignore them because they required monthly fee, ranging from a few dollars per device to tens of dollars for "unlimited" (discounted with multi-year contract). With many non-carrier solutions usable without fees, I felt this to be undesirable.

However, SKT must have felt that this arrangement was hurting their chances for wide acceptance, because it began offering some of their affiliated products free of monthly fees, charging only a nominal (KRW 5,500, US$4.80) one-time fee included in the sales price since last October. I decided to take the bait and started integrating their home IoT products, sold under the "SKT Smart Home" brand, into my house. The very first one was a smart plug. The one you see here is the one made by Witty.


Over time, I installed several of these plugs around the house and some of them came from another company, Dawon DNS. Because SKT was selling them, lots of things were made to be nearly identical, namely the packaging and the functionality. The frugal-looking brown paper boxes contain the plug and the instruction manuals, all of which look almost exactly the same except for the diagram of the plug. Both companies' plugs are controlled by the one and the same official app, and works largely like as if they are the same product.

Even the price is similar, at around $22.50 to $26, which makes them one of the most inexpensive options. This includes the aforementioned fee, so the pricing is rather aggressive. The deal is made even sweeter by the fact that the plugs do not need any gateways or hubs to operate as some other solutions do (namely that of other carriers'). It will interface directly via Wi-Fi, so if you already have a wireless router at home there's no additional cost involved.

For the past two weeks, I've been having a strange problem when attempting to place calls with my iPhone 6 Plus. Many of the phone numbers that I know for sure exist would be met with "the number you dialed is not in service". If I switch the "Enable LTE" option in Settings app to "Data Only" instead of "Voice & Data", the phone calls would go through just fine. So it had to be an issue with VoLTE.

I first contacted my carrier, SK Telecom, to see if this was a problem at its end. But nothing turned up and I was eventually advised to contact Apple instead. Sure enough, colleagues using iPhone 6 on the same carrier did not have the problem. Digging deeper, I discovered that the problem did not occur only if I had country code prefix (e.g. +82 for Korea) on the phone number. So while +82-10-xxxx-yyyy would work, 010-xxxx-yyyy wouldn't.

Seeing that it might be some sort of a weird software issue, I contacted Apple support about this. Unfortunately, no clear solution came up, either. As a last resort, I was told to do a complete factory reset and see if that helped. As the troubleshooting was reaching a dead-end, I got a carrier settings update as I opened up the "About" page in Settings app. It updated the carrier settings from SK Telecom 18.x to 19.1. I told the support that I'd see if this update did anything, and if not, I might try the factory reset.

I attempted several calls to various places with the VoLTE setting on, and I saw that all of the calls now made through regardless of the country code prefix. The update apparently fixed the problem. It was indeed a software problem, but it was somewhat caused and fixed by the carrier. I reported this success to Apple support.

Today, just one week before official Korean launch, Apple Korea has begun accepting orders for unlocked iPhone 6 series. The price (including VAT, in KRW) goes like this:

iPhone 6: 16GB 850,000 / 64GB 980,000 / 128GB 1,110,000
iPhone 6 Plus: 16GB 980,000 / 64GB 1,110,000 / 128GB 1,240,000

The nominal exchange rate is about KRW 1060 / US$ as of this writing, so the 6 Plus 128GB is about $1170 after taxes (or $1060 before). That's quite more expensive than the USA, where it's $949 before taxes. It turns out that Apple Korea is applying an exchange rate of KRW 1190 / US$, or KRW 130 (12.3%) more every dollar.

$649 x 1190 x 1.1 ~= KRW 849,500 (actual: 850,000)
$949 x 1190 x 1.1 ~= KRW 1,242,000 (actual: 1,240,000)

The baseline price that the mobile carriers have decided upon for selling the devices by themselves is only slightly cheaper by about KRW 30,000 50,000 to 60,000 (updated, see below). Yes, in Korea, even if you're entering a 2-year contract, the most expensive iPhone 6 Plus is more than twice as expensive as the US$499 that the people in the US is supposed to pay. Cheapest iPhone 6 should be about four times as expensive.


To see how ridiculous this is, let's look at the next-door country, Japan. Apple Japan's prices (excluding tax, in JPY) are:

iPhone 6: 16GB 67,800 / 64GB 79,800 / 128GB 89,800
iPhone 6 Plus: 16GB 79,800 / 64GB 89,800 / 128GB 99,800

The applied exchange rate is about JPY 105 / US$, even though the nominal rate is higher at JPY 108 / US$. This means that Apple Japan is actually selling the iPhone 6 cheaper than compared to Apple USA.

$649 x 105 ~= JPY 68,100 (actual: 67,800)
$949 x 105 ~= JPY 99,600 (actual: 99,800)

To put this in context, let's say a Korean tourist decides to buy an iPhone 6 Plus 128GB or an iPhone 6 16GB in Japan and bring it back home. The person buying it in cash or credit card will have an exchange rate of KRW 9.98 / JPY as of this writing. Therefore:

JPY 99,800 x 9.98 ~= KRW 996,000
JPY 67,800 x 9.98 ~= KRW 676,000

That is considerably cheaper. Plus, the 8% sales tax is waived because of the tourist status, so the person doesn't pay more at the store. Once the person returns to Korea, the customs will impose the 10% VAT on the device for values exceeding US$600.

((99,800 / 108) - US$600) x 0.1 = US$32.40 = KRW 35,000
((67,800 / 108) - US$600) x 0.1 = US$2.78 = KRW 3,000

So how much cheaper would it be in the end?

iPhone 6 Plus 128GB: 1,240,000 - 996,000 - 35,000 = KRW 209,000
iPhone 6 16GB: 850,000 - 676,000 - 3,000 = KRW 171,000

Given that low-cost airline fares for a round trip between Korea and Japan costs around KRW 200,000 or less, the person buying an iPhone 6 (Plus) in Japan will essentially be getting a free trip to Japan for the cost of buying one in Korea. The only major issue with this is that the device will not be eligible for official repairs or refurbishments within Korea.

So if you're a Korean who likes traveling and wants to buy an iPhone, and don't mind going to 3rd party repair shops, then reserve a phone at an Apple Store in Japan and book your flight to pick it up. All this thanks to the outrageous price-gouging by Apple Korea.

Update (16:30): I've taken a look at the prices for LGU+ (3rd largest mobile carrier in Korea) and this is how it goes:

iPhone 6: 16GB 799,000 / 64GB 920,000 / 128GB 1,041,000
iPhone 6 Plus: 16GB 920,000 / 64GB 1,041,000 / 128GB 1,162,000

It's slightly cheaper than what the iPhones traditionally cost from mobile carriers in Korea. It might be because this is the first time LGU+ is able to sell iPhones and it wanted a bit of price advantage.

Update (2014-10-31 10:20): There have been some adjustments and the three carriers have finalized the prices as follows:

iPhone 6: 16GB 789,800 / 64GB 924,000 / 128GB 1,056,000
iPhone 6 Plus: 16GB 924,000 / 64GB 1,056,000 / 128GB 1,188,000

It seems the carriers are trying to boost the total iPhone 6 sales overall by making the cheapest look cheaper. But the other models have increased in price to be just about KRW 50,000 less expensive than the Apple Store price across the board. But since the carriers will charge interest for the monthly installments during the contract period of two years, the total cost should be about the same in the end.