Sony’s wearable air conditioner is the first step towards a real Dune stillsuit

In Frank Herbert’s Dune, the Fremen natives who inhabit the desert planet Arrakis wear moisture-capturing stillsuits to survive the sweltering conditions. Now, living in London, I have little need for a full-blown stillsuit, but if you’ve ever attempted to ride the Central Line at peak commuting hours in summertime, you’ll share my wish for a better way – any way! – to deal with the downright suffocating heat.
Enter the Sony Reon Pocket 5, a wearable thermo device that cools or warms your body, depending on the conditions of your environment. Designed to sit neatly on the back of your neck, the Reon Pocket 5 uses a plate-like “thermos module” and five sensors – three for temperature, one for humidity, and one for motion – to determine optimal body temperature and, hopefully, make you more comfortable while moving, standing or sitting.
The Reon Pocket 5 offers five levels of cooling and four levels of warmth, meaning – in theory – it’s just as useful on a toasty commuter train as it is on a chilly flight. The device works automatically when paired with the included wearable Reon Pocket Tag, which senses outside conditions and feeds information back to the neck device. The Reon Pocket 5 still works without this pin-like accessory, mind, but it’ll only detect your body’s temperature, rather than that of your environment (thus reacting to – rather than pre-empting – changes in body temperature).
Image 1 of 6
If you’d rather take a manual approach, the Reon Pocket 5 can be controlled using Sony’s new Reon Pocket App, which is compatible with both iOS and Android devices. Helpfully, you’ll be able to slide through those aforementioned temperature levels via Bluetooth, so the device should work anytime, anywhere (hikers, rejoice!). You’ll also get up to 17 hours of rechargeable battery life.
Incidentally, Sony’s remote air conditioning technology isn’t new; the first Reon Pocket device launched in Japan way back in 2019, while subsequent iterations have since gone on sale in Japan and Hong Kong. The Reon Pocket 5, however, is the first device of its kind to be made available outside of Asia, with the UK market getting first dibs.
The Reon Pocket 5 is available to pre-order now for £139 (that’s around $170 / AU$260) from Sony’s website, and is set to begin shipping on May 15. The Reon 5T package includes the device itself, a Reon Pocket Tag, and a white neckband, though Sony is also offering a beige-colored neckband for £25, should you wish to swap out the white for something more muted.
Sony Reon Pocket 5: hands-on impressions
I had the chance to go hands-on (or neck-on?) with the Reon Pocket 5 at a recent Sony demo event, and was pleasantly surprised by how effective the device was at reducing (or increasing) my body’s temperature at the touch of a button.
Get the hottest deals available in your inbox plus news, reviews, opinion, analysis and more from the TechRadar team.
The thermos module is basically a hot plate for your neck, and despite its small size, the increased sensitivity to temperature in that area of the body means that heating it up or cooling it down makes your entire body feel more comfortable.
Weighing just 116g, the device itself isn’t a nuisance to wear, either – I forgot it was strapped to my neck during an hour-long sit-down meal with the Sony team – though I will say that no amount of tucking makes it invisible. At the front, the neckband sits just above the collar, and at the back, the thermos module juts up and out, so you’ll no doubt get some “what the heck is that?” looks while wearing the Reon Pocket 5 in public places (that said, Apple’s AirPods were ridiculed when they first released, and look at them now…).
The question of when and where this product should be worn is altogether larger; I’m not convinced that seeking the perfect body temperature all the time is a good thing. But as a means of simply making travel more comfortable, the Sony Reon Pocket 5 delivers on its promise. Kudos to the first person who wears this and the Dyson Zone air-purifying headphones at the same time.
You might also like…
In Frank Herbert’s Dune, the Fremen natives who inhabit the desert planet Arrakis wear moisture-capturing stillsuits to survive the sweltering conditions. Now, living in London, I have little need for a full-blown stillsuit, but if you’ve ever attempted to ride the Central Line at peak commuting hours in summertime, you’ll…
Recent Posts
- UK private health services firm told to pay up $2m for ransomware hit
- Twelve South’s Find My-compatible charger is on sale starting at just $49
- 8 Best Projectors According to Our Reviewers (2025)
- US soldier pleads guilty to AT&T and Verizon cyberattacks, linked to Snowflake data theft
- The best gaming keyboards of 2025
Archives
- February 2025
- January 2025
- December 2024
- November 2024
- October 2024
- September 2024
- August 2024
- July 2024
- June 2024
- May 2024
- April 2024
- March 2024
- February 2024
- January 2024
- December 2023
- November 2023
- October 2023
- September 2023
- August 2023
- July 2023
- June 2023
- May 2023
- April 2023
- March 2023
- February 2023
- January 2023
- December 2022
- November 2022
- October 2022
- September 2022
- August 2022
- July 2022
- June 2022
- May 2022
- April 2022
- March 2022
- February 2022
- January 2022
- December 2021
- November 2021
- October 2021
- September 2021
- August 2021
- July 2021
- June 2021
- May 2021
- April 2021
- March 2021
- February 2021
- January 2021
- December 2020
- November 2020
- October 2020
- September 2020
- August 2020
- July 2020
- June 2020
- May 2020
- April 2020
- March 2020
- February 2020
- January 2020
- December 2019
- November 2019
- September 2018
- October 2017
- December 2011
- August 2010