Overview
- The device, which went on sale Tuesday in the U.K. and Europe at £199/€229, is the latest version of Sony’s wearable personal thermo gadget.
- The Reon Pocket cools by pressing a chilled metal plate against the back of the neck using a thermoelectric module that pulls heat from skin where blood vessels run close to the surface.
- Sony cites about 20% stronger cooling and a plate roughly 2°C colder than the prior model, with an updated algorithm and a smaller Tag 2 sensor to guide automatic adjustments.
- An Adaptive Hold neckband increases holding force by around 40% for steadier contact, and an adjustable exhaust lets users direct warm air away even under high collars.
- Sony’s press materials promise a U.S. online-store launch in summer 2026 and advertise up to 15 hours in SMART COOL mode, while several outlets report about 10 hours on the second‑highest setting.