Sony Reon Pocket 5
I discovered the existence of a cool new device this week when a Sony catalog wound up in my trad-mail inbox. After some online research, I visited the nearest Sony store for a demo of the Reon Pocket 5 device and ended up buying one for S$249. Okay, what is a “Reon Pocket” and why is this the fifth version? The four previous iterations were only sold in Japan, but the tech is now mature enough that Sony is launching it in the UK, Hong Kong, Singapore, and Thailand this year.

It’s best described as a wearable gadget for helping you feel more comfortable by fooling suggesting to your body that the temperature is more bearable than it thinks. It does that by cooling or heating a small metal plate pressed against your skin (in this case, at the base of your neck), which contrasts with the environment and changes your perception of it. Surprisingly, it works with just a difference of a few degrees.
I first learnt about this effect a decade ago from a Wired article about an MIT prototype and have been eagerly awaiting a commercial product ever since. I had no idea until after buying the Sony version that the researchers mentioned in that article have actually shipped their own wrist-worn product called the Embr Wave. It resembles a smartwatch and is more discreet than the bulkier Reon Pocket 5 which sticks out from beneath your shirt collar like some kind of life support system. However, since I already wear an Apple Watch, I don’t know if I’d wear an Embr Wave too.
In some ways, I seriously see this device as a “life support” technology. I think I’ve struggled with heat regulation all my life — always feeling warmer and sweatier than everyone else; most days you can hold your hand over my head and feel the heat radiating off it. I read that our bodies’ core temperature doesn’t actually change much (when it does, that’s hypothermia or heatstroke), so how comfortable we feel is all down to skin temperature, which this sort of thing hacks.
After a couple days of testing, I’ve found the Reon Pocket 5 doesn’t perform miracles but offers a different sort of relief than a handheld fan (though one could use both). But it’s like constantly holding a cool can of soda against your neck in hot weather, which is welcome! It’s a glass of ice water for someone in hell. Even when the temperature isn’t that high but it’s stuffy and humid, this takes the edge off. If you’re the sort who’s always feeling cold in Singapore’s air-conditioned spaces, it also heats up and offers the opposite effect.

There’s a lot I could say about the app, and how it’s another example of Sony’s generally poor UX design, but once you figure out what settings you like, you can lock them in and operate the device without it. It also comes with a separate “tag” that you can attach elsewhere on your body, which monitors the external temperature and humidity so the device can automatically switch modes, but I haven’t bothered to take it out of the box at all. All they needed to do was put a button on the thing to switch between hot and cold, just like the Embr Wave does.
Building a separate piece of hardware instead… reminds me of how Sony headphones try to “intelligently” adjust noise cancellation levels by guessing whether you’re commuting, or working, or lazing about, by using GPS location and accelerometer data from the smartphone app — an absolutely mental and roundabout solution to replace the user pressing a button. Incidentally, Apple’s Adaptive Audio mode on AirPods Pro is a much better take: they dynamically adjust the balance between noise canceling and transparency based on environmental noise, letting you be aware but not annoyed.
The battery, if you’re wondering, should last an entire day out. At Level 1 cooling power it’s rated at 17 hours; at Level 3, 10 hours; and at Level 5, 4 hours. Operating on Smart Cool mode, it switches between them as necessary. There’s also a “wave” feature that I recommend turning on, which follows the same core principle as Embr’s device where cooling power fluctuates so you don’t become desensitized to it. If you need even longer performance, you can plug it into a power bank and it will work on direct power without charging. Imagine using it at the same time as Apple Vision Pro, with two power banks in your back pockets. That’s living in the future, baby.
In conclusion, wearing the Reon Pocket 5 around your neck makes you look dorky or hooked up to some medical device, but when it’s over 30ºC in the shade, who gives a damn?!
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New camera apps
I’ve been using two new camera apps: Kino, from Lux Optics who also make the Halide app, and Leica LUX (no relation).

Kino is a logical move. Halide was a “pro” app focused on bringing intuitive manual controls for still photography. Kino does the same for video. Unlike Halide, it’s a one-time purchase ($20 USD) and a big part of its functionality is the ability to apply different looks (color grading via LUTs). I’ve always wished Halide would do something similar, to help lazy shooters get the most out of RAW captures. I hardly shoot any video but I thought Kino was worth buying, especially since I’ve let my Halide subscription lapse for lack of use.
One of the best things Kino does is allow the system to shoot in Apple LOG but write the files in HEVC format instead of ProRes, which saves a lot of space but still conveys some of the benefits. You can also shoot in LOG, apply a color grade preset in real time, and save the baked file in HEVC. That’s awesome.

Leica LUX is not so logical and I’ve been puzzling over why a company with their luxury brand equity would take a risk like this. On the page linked above, they’re saying the app “lets you capture the iconic Leica Look with your iPhone” using their “deep color science” and digital simulations of “legendary lenses”, like the Noctilux-M 50mm f/1.2 ($7,895 USD), and claiming it “reproduces” its “signature aesthetic bokeh”.
I present two exhibits. The first (below) is what you see when selecting the “Leica Standard” profile: a statement that it handles color the same way as their cameras that cost upwards of $6,000 USD do, using your iPhone’s sensor. Whether it’s true or not is beside the point; Leica is saying you can enter their world with a free app and the phone you already own. To my eyes, it’s not far off from the iPhone’s default color handling, and looks like some gentle H/S/L shifts. The other Leica Looks are a mixed bag: I like the Leica Natural one, but some others are heavy and feel like “filters”. I’d hoped these would be more like Fuji’s in-camera film simulations, which are more like “color profiles”.

The second shows how their implementation of a depth effect is inferior to Apple’s own Portrait Mode, with rough edge artifacts, despite the hyperbolic claims of giving your iPhone the “unique aesthetic of Leica’s legendary M-lenses” with their “distinctive look and beautiful bokeh”. If it did, that dark shot of my Misery Men mug would look like it came from a 28mm Summilux f/1.4 lens, and I can assure you it does not. Moreover, their digital depth effect only adds background blur, not foreground blur, which makes for a less realistic result that Apple’s own Portrait Mode which your iPhone already does for free.


One nice feature is the photo library viewer they’ve built into it, which lets you switch between seeing All photos and Leica photos only, including ones taken with your Leica cameras. And photos taken with this app sit alongside them as equals! In the field where the camera model is specified, it simply shows “Leica LUX”.

What are they getting out of this brand dilution? Well, the app is subscription-based and asks for S$99.98/yr to unlock more Leica Looks and lenses. They claim new ones will be added monthly. I think perhaps anyone who owns or intends to own a physical Leica camera will not bother with this, and it’s a move to grab all the aspirational customers who want to touch the brand — including a bit of overlap with the market they tried to target with their Huawei and Xiaomi smartphone collaborations. The question is whether this will do any significant reputational damage, and so far all the comments I’ve seen on Leica blogs and communities have been negative. Could they stand to make more on app subscriptions than they’d lose from upset camera buyers? Maybe! Is that capitalization model the right way to run a company? Maybe not?
I’m still optimistic because I’m not emotionally or financially invested enough in the brand to care how they destroy themselves, and will wait to see if they update the app to improve edge detection and add some better Leica Looks. If it ever gets good enough to be my primary iPhone camera app, a hundred bucks a year is steep but not out of the question.


Meanwhile, I’ve found the following settings get me calmer and more natural photos out of the default iPhone camera app. First, go to Settings > Camera and make sure you turn on “Exposure Adjustment” under the “Preserve Settings” section. Then in the camera app, set exposure to -0.3ev, and using one of the Photographic Styles as a base, change its values to -20 Tone and +5 Warmth. Note: If you have a 14 Pro, the only way you’re getting less crispy shots is to use an app like Zerocam or Halide and disabling smart processing.
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Media activity
- Started playing Spider-Man: Miles Morales on the PS5. It feels just like the first game I played on the PS4 years ago and I can’t say I’m getting next-gen from this, but it’s good fun.
- Finally got Balatro on the Switch, the highly acclaimed indie poker roguelike game. It reminds me so much of Solitairica, the indie solitaire roguelike game on iOS. That’s a good thing. It’s the kind of game you can play for a few minutes, or hours on end.
- Started watching season 2 of Link Click, a Chinese-made “anime” series with a cool ‘catch a serial killer through time’ kinda story. I saw season 1 a couple of years ago and was impressed by how well executed it was.
- Saw Still of the Night (1982), starring a young Meryl Streep and Roy Scheider. It’s a Hitchcock-inspired psychological thriller with Fatal Attraction vibes. 3/5
- Saw The Ministry of Ungentlemanly Warfare, a Guy Ritchie WWII joint that feels like if Inglourious Basterds was a Jason Statham vehicle. Except he’s not in this, Henry Cavill is, as well as Alan Ritchson (of Reacher fame) who plays a gay Dane (Swede?) who loves killing Nazis almost a little too much. Quite a bit of fun. 3/5
- Saw The Fall Guy, a movie I’ve been anticipating for a long time on the strength of its trailer and what little I’d assumed about its story. I didn’t know it was based on an old TV show. But it was a messy, empty disappointment of a blockbuster that even Ryan Gosling and Emily Blunt couldn’t save. 2/5
- Saw Carnival of Souls (1962), a cult classic surrealist quasi-horror film on Kanopy, a video streaming service that’s free if you connect your library account. It’s got Ed Wood B-movie vibes and special effects, a lot of rough edges, but still manages to be a compelling work that I’ll probably remember for a long time. 3.5/5
- Saw To Have and Have Not (1944) in which Lauren Bacall plays a character who is stated as being 22 years old, to which I thought “she’s gotta be a lot older than that”. I looked it up and she was probably 19 💀. So that’s proof that people really used to look older, and you’d be forgiven for assuming it was the copious smoking (on display in this film). It’s a weird one, almost a musical showcase for Hoagy Carmichael who shows up as the hotel bar’s piano man. Doesn’t quite have that Casablanca magic yet. 3/5
- Saw Dream Scenario in which Nicolas Cage convincingly plays a loser who suddenly becomes famous due to an unexplained phenomenon (he starts appearing in people’s dreams). Towards the end, it pivots from uneasy mystery to comical cultural commentary. That’s not a complaint though. 3/5
A playlist for you
As reward for making it this far, here’s the next installment in my Blixtape playlist series, covering music I listened to from January to May this year. Hope you find something to like.

Add BLixTape #4 on Apple Music
The tracklist:


































