Sony has launched its latest portable Bluetooth speakers, the ULT Field 3 and ULT Field 5, in China, with pre-sales now open at 1399 yuan (around $193) and 2299 yuan (around $318) respectively. Both models feature Sony’s signature punchy sound profile in rugged, travel-ready designs, supporting stereo pairing, long battery life, and enhanced bass modes for indoor and outdoor use.
Sony ULT Field 3 and ULT Field 5 Specifications
The ULT Field 3 features an 83mm × 46mm X-Balanced mid-bass driver and a 20mm dome tweeter, supported by a passive radiator. It delivers a peak sound pressure level of 85dB, maintaining crisp vocals and resonant bass despite its compact size. It sports Sony’s ULT mode, accessible via a dedicated button, which boosts low-end frequencies and expands the soundstage to simulate the feel of a full-sized speaker.
The Field 3 also comes with an IP67 rating for water and dust resistance, along with MIL-STD-810H-certified drop protection. It supports up to 24 hours of battery life, while a 10-minute quick charge adds about two hours of playback. It equips USB reverse charging to power other devices, Bluetooth 5.2 connectivity for stable streaming, and multipoint pairing for seamless device switching.
The ULT Field 5 brings a bigger setup, featuring a 107mm × 79mm woofer, dual 46mm tweeters, and side passive radiators. It cranks out up to 91dB SPL and offers a non-plugged maximum output of 110W. It supports two bass boost profiles through ULT mode: ULT1 (Submersion Mode) for deeper, softer bass, and ULT2 (Power Mode) for punchier, dynamic sound with brighter highs.
It sports Bluetooth 5.3 with LDAC codec support for near-lossless audio quality and includes a 3.5mm high-res audio input backed by a 48kHz/24-bit ADC. The Field 5 supports 25 hours of battery life, offers quick charging, and comes with a battery care mode to extend battery health. RGB light strips on either side sync with your music and can be customized through the Sony Sound Connect App, which also offers EQ and lighting controls.
Both models support Party Connect, allowing up to 100 compatible Sony speakers to sync for a broader soundscape. They can be paired with identical models for true stereo playback. The ULT Field 3 and Field 5 are available in multiple colors and include a shoulder strap for easier portability, offering users a choice between minimalistic durability and party-ready performance.
In related news, Portronics has launched the Fynix 30W portable Bluetooth speaker, featuring TWS support, Bluetooth 5.3 connectivity, and up to 6 hours of battery life.
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