Using Apple Vision Pro on a walk and in a car

Wearing Apple Vision Pro at Naju Lake Park out of Travel Case

One of the main reasons I developed a wearable computer two decades ago was to have a computer available for use while on the move. Since Vision Pro is also a computer you wear on your body, I wanted to see if it was just as versatile. So I brought it to a local park in the Travel Case and wore it at a bench as you can see above. The wearing process itself took about 90 seconds to complete, which isn't that different from my old creation.

I can "touch" the buttons or make gestures to interact with the floating windows

Once the system is booted and ready for use, I can load up the Home View and launch apps, all of which are floating but "anchored" to the surrounding space. Although the default way of interacting with the elements in a window is via hand gestures, I can just walk up to the window and "touch" it to use it like a huge touchscreen. There's no haptic or tactile feedback, so it's a bit awkward. However, the audible cue does make you feel that there's a slight feedback and it helps.
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Picking up and unboxing the Apple Vision Pro

Arriving at an Apple Store in Los Angeles on the launch day of Vision Pro

Apple launched its first so-called spatial computing device called Vision Pro on February 2, 2024, only in the United States. As someone who had keen interest in wearable computers for quite some time, and is big fan of all things Apple, I had to get my hands on a set. So I was able to make it to Apple The Grove in Los Angeles on the launch day and do just that.

Asiana Airlines flight OZ202 made a U-turn 2 hours and 30 minutes in

The trip wasn't easy, as the plane I took had one of the passengers falling ill mid-flight, causing an emergency landing in Tokyo Narita Int'l Airport and making the trip 6 hours longer than originally planned. Thankfully, I was able to arrive at the store before closing.
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Celebrating Bolt EV's 5th birthday

Bolt EV on its 5th birthday in June 2023
My Bolt EV has turned five this month, as it racked up more than 130 thousand kilometers on its odometer. It's fairly efficient and low maintenance, so I'll keep driving it as the primary vehicle for several more years. It definitely has some downsides like the poor fast charging performance, but I've gotten used to it. Let's see how it's been doing all this time. You can watch the YouTube video or keep reading below.

Monthly performance trend from June 2018 to May 2023
As you can see here, I generally drive about 1,500 to 2,500 km every month, for an average of 2,179.3 km. Lifetime efficiency is at 7.72 km/kWh, but it can get as high as 9 km/kWh in summer or drop to about 6.5 km/kWh in winter. As for the battery, it had been degrading stably for the first four years, then it was replaced with a new one. Interestingly enough, not only is the usable capacity larger by about 3 kWh, it's maintaining its capacity better than the original one. I'm going to be looking into this further at at later time.
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Bolt EV's economic relevance at 100,000km

Bolt EV's monthly performance (distance, efficiency, and battery) up to 100,734.6km

On March 27, 2022, after nearly 46 months of driving, my Bolt EV's odometer hit 100,000km. Considering that it isn't used for commuting most of the time, this is a relatively quick achievement. Of the 100,734.6km driven in 46 full months, 48,588.7km was done in the city while the remaining 52,145.9km was on the expressways, so at 48:52 ratio it's got a balanced use. As for the efficiency, the car spent 13,016.1kWh, so that translates to 7.74km/kWh overall. It's well over the official numbers, so that shows how conservative I drive.

Bolt EV Total Cost of Ownership (TCO)

During this time, I spent KRW 5,461,940 (about US$4,440) on the car, excluding toll. Interestingly, the insurance and the tax accounted for more than half of the total. This reflects how relatively little I need to pay for the charging and maintenance. In fact, I spent just KRW 874,467 (US$710) for charging, which is less than 1/6 of the total. And other than the tires, the periodic maintenance costs were insignificant.

There's a good reason why I spent so little on charging.
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Bolt EV gets new charging curve

GM Korea has issued a final recall for 2017-2019 Bolt EVs on June 4, 2021 which updates the battery management software to better monitor and warn against rare battery fires. I had the update applied on the first day, then drove the car around to sufficiently drain the battery. After returning, I plugged the car into a local DCFC station that I previously used for getting the detailed charging curves just over two years ago. These are the results of the new measurements.

Bolt EV's new charging curve on a 100kW station as a function of Displayed SoC

Bolt EV's new charging curve on a 100kW station as a function of time

The curved had changed significantly after the update. If you compare it with the previous data, you'll notice that the curve is no longer stepped. It's showing a gradual decline starting from about 42% SoC instead. This is close to the sort of curve that was originally seen on the 2020 and later model years of Bolt. The overall time to charge didn't change much, though.
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