Sony REON POCKET 5 Wearable Cooler
£139
|The Sony REON POCKET 5 Sensing Kit is a neck-worn personal cooling and warming device with a stainless-steel contact section, app support and a separate environmental tag. It is a neat answer to the very modern problem of being dressed for the office but thermally dressed for a greenhouse.
Prices correct as of: 08/05/2026 15:44
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At a glance
One-line verdict
This wearable cooler and warmer brings private climate control to the commute, provided your plans do not involve rain, vigorous exercise or a missing USB adaptor.
Best for
Commuters, walkers and golfers who want discreet personal temperature control during dry, light-activity days.
Skip it if
Skip it if your routine involves heavy sweating, rain or expecting the included Japanese warranty card to cover you in the UK.
The full picture
The Sony REON POCKET 5 Sensing Kit addresses a peculiarly contemporary indignity: one person’s perfectly normal commute is another person’s private furnace. Packed trains, stuffy offices and a brisk walk followed by a blast of indoor heating have made getting dressed feel like an amateur weather-modelling exercise.
This is a wearable cooler and warmer designed to sit at the neck using the supplied Neckband 4, with a SUS316L stainless-steel contact section. The RNPK-5T sensing kit also includes Sony’s REON POCKET TAG, which is intended to add environmental sensing to the arrangement. We think that extra bit of system-thinking is what elevates it above a novelty fan destined for the kitchen drawer.
There is a sensible ceiling to the cleverness. Sony positions it for daily outings, commuting and light exercise such as walking or golf, not heroic endurance pursuits. It is not waterproof, and the stated advice rules out rain, snow, intense sweating and prolonged hot sun. Britain has, unfortunately, built much of its personality around several of those things.
The REON POCKET 5 therefore makes the most sense as a selective comfort gadget, not a portable force field against weather. Its quoted battery range also varies sharply by chosen mode level, while the kit omits a USB AC adaptor. A small piece of climate bureaucracy, then, but potentially a very welcome one on the right dry day.
The Irresistible
- The RNPK-5T kit combines the main REON POCKET 5 unit, Neckband 4 and REON POCKET TAG, rather than leaving the sensing element as an extra scavenger hunt.
- Sony specifies both five COOL levels and four WARM levels, giving the device a useful role across overheated commutes and chilly walks.
- Its intended use includes daily outings, commuting, walking and golf: exactly the low-drama occasions where personal temperature control has a fighting chance.
The Clever Part
- The integrated battery charges through USB Type-C, reaching approximately 90% in 100 minutes and full charge in 170 minutes.
- Sony quotes up to 17 hours on COOL level 1 and up to 8 hours on WARM level 1, with shorter runtimes at higher settings.
- The kit includes both long and short air-vent covers, plus an L-shaped USB-A-to-USB-C cable and a CR2032 battery for the tag.
The Fine Print
- A USB AC adaptor is not included, so the otherwise tidy kit still begins with a rummage through the cable drawer.
- Higher settings materially reduce Sony’s quoted battery life: COOL level 5 is approximately 4 hours, while WARM level 4 is approximately 4 hours.
- It requires a compatible phone running iOS 13 or later or Android 8 or later.
The Reality Check
- It is not waterproof and Sony advises against strenuous, sweaty exercise, rain, snow and prolonged exposure to hot sun; this is not kit for British weather optimism.
- The included warranty card is valid only in Japan, according to Sony’s UK product page.
Buyer questions answered
What is included with the Sony REON POCKET 5 Sensing Kit?
The RNPK-5T kit includes the RNP-5 main unit, Neckband 4, REON POCKET TAG, long and short air-vent covers, an L-shaped USB-A-to-USB-C cable, two startup guides and a CR2032 battery already inserted in the tag. It is a remarkably complete little kit, apart from the plug bit that civilisation still insists you provide yourself.
Does the Sony REON POCKET 5 work as both a wearable cooler and warmer?
Yes, Sony specifies COOL levels 1 to 5 and WARM levels 1 to 4 for the REON POCKET 5. That makes it suited to the British habit of leaving home chilly and arriving somewhere bafflingly tropical.
How is the Sony REON POCKET 5 worn?
The REON POCKET 5 is worn with the included Neckband 4, with its cooling or warming contact section positioned at the neck. It is personal climate control without having to carry a desk fan around like a defeated Victorian.
How long does the Sony REON POCKET 5 battery last?
Sony lists approximately 17, 12, 10, 7.5 and 4 hours at COOL levels 1 to 5, and 8, 6, 5 and 4 hours at WARM levels 1 to 4. It reaches around 90% charge in 100 minutes and full charge in 170 minutes via USB Type-C.
Is the Sony REON POCKET 5 suitable for exercise and wet weather?
No, Sony says it is not waterproof and advises against strenuous exercise with intense sweating, rain, snow and prolonged exposure to hot sun. Walking or golf are within its stated intended uses; a sodden five-a-side match is very much not.
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