Sony Ult Field 3 Review: The Sweet Spot in Sony’s Speaker Lineup?
Sony’s Ult speaker lineup has been growing fast since its 2024 debut, and the Ult Field 3 might just be the Goldilocks of the range, not too big, not too small, and just right for most people. It is designed to deliver big sound without becoming a back-breaking burden to carry, making it a tempting mid-range option for those wanting style, durability, and punchy audio.
Price and Availability
The Sony Ult Field 3 is available now for £129. This places it in the mid-range bracket of portable Bluetooth speakers, a segment where buyers expect a balance of sound quality, durability, and portability.
Design and Features
While some of Sony’s Ult models are designed to scream for attention, the Ult Field 3 takes a more refined approach. With an oblong design wrapped in a durable mesh grille and subtle feet for stability, it looks sleek without being flashy. Large driver apertures sit at each end, while the top hosts essential controls, power, Bluetooth pairing, play/pause, volume, and the signature “Ult” button for an instant bass boost.

It also comes with hooks for a detachable carrying strap, a USB-C charging port hidden under a protective flap, and an IP67 water and dust resistance rating. This means it can survive a dusty festival ground or a poolside splash without breaking a sweat. Available in black, green, or off-white, it’s a rugged yet stylish unit.
Sony claims up to 24 hours of battery life, with fast charging delivering around two hours of playback from just 10 minutes plugged in. If you pair two Ult Field 3 speakers, you can enjoy stereo sound, or link it with other Ult models to really crank up the output.
Performance
The Ult Field 3 delivers loud, detailed audio for its size. In outdoor environments where sound can get lost, the Ult mode works wonders, adding thumping bass without completely drowning the mids and highs. However, at full volume, there is a noticeable drop in detail, a common trade-off for portable speakers.
The biggest caveat? The Ult mode is so effective it feels like it should always be on. Unfortunately, you cannot tweak EQ settings while it is active, which limits customisation.
Bluetooth connectivity is strong and stable, and battery performance largely matches Sony’s claims, though using Ult mode trims about 10 hours off the runtime.

Verdict
The Sony Ult Field 3 hits a very appealing middle ground, it is more powerful than the smaller Ult Field 1, yet avoids the bulk of the larger models. Its premium build, IP67 rating, and impressive bass performance make it a strong choice for outdoor use.
It is not perfect. The reliance on Ult mode and lack of tuning flexibility may frustrate audio purists, and the price puts it up against strong competition like the JBL Charge 6 or Sonos Roam 2. But if you want a stylish, durable, and seriously loud portable speaker, the Ult Field 3 is worth considering.
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