Sony ULT Field 3

Published · Researched 2026-09-21

Version lineage (2023–2026)

• SRS-XB43 / XB33 era: Sony's older EXTRA BASS party speakers.
• ULT Field 1 (2024): the first ULT-series portable — the new bass-forward lineup replacing EXTRA BASS branding.
• ULT Field 3 (April 2025): current model — $199/$199.99, IP67, 24 h battery, dedicated woofer + tweeter, USB-C powerbank function, detachable shoulder strap. No 3.5 mm input.
• No ULT Field 4 has been announced as of 2026-09-20.

Overview

The Sony ULT Field 3 is the mid-size entry in Sony's ULT POWER SOUND lineup — the bass-first answer to the JBL Charge 6 and UE MEGABOOM 4. Its differentiators are a dedicated woofer/tweeter driver layout, a 24-hour battery claim, a USB-C port that doubles as a device charger, and a detachable shoulder strap for carrying. The two spec-sheet frictions: no 3.5 mm aux input, and a ULT bass mode that reviewers say can overwhelm the mids. At 1,200 g it's the heaviest of the mid-size class — basecamp only.

Key Specs

• Model: Sony ULT Field 3 (launched April 2025)
• Drivers: dedicated woofer + tweeter
• Battery: 24 h claimed; 10-min quick charge ≈ 2 h playback
• Charging: USB-C; powerbank function (charges other devices)
• Rating: IP67 (dustproof, submersible)
• Bluetooth: 5.2
• Inputs: no 3.5 mm aux
• Carry: detachable shoulder strap
• Weight: 1,200 g (42.33 oz)

Pricing

• MSRP: $199 / $199.99 (April 2025 launch pricing).
• Current official US pricing as of 2026-09-20: UNVERIFIED — re-check before publishing; street discounts typical for Sony portables.

In the Box

• ULT Field 3 speaker
• Detachable shoulder strap
• Documentation
• Charging cable status UNVERIFIED — confirm at purchase.

Warranty

1-year limited warranty (Sony standard).

Support & Parts

Sony support. No user-serviceable parts; sealed battery.

Community Verdict

A ruggedness-and-battery story, not a sound-quality story. TechRadar's current review praised the Field 3's toughness and battery but criticized the audio quality, explicitly preferring the JBL Charge 5 or Sonos Roam 2 for sound. Social-platform results skewed heavily toward sponsored lifestyle content rather than organic owner discussion — a weak exact-model community signal as of Sept 2026. The shoulder strap and powerbank function are the genuine camp differentiators; the bass-heavy tuning is the genuine divisive point.

Images

• images/sony-ult-field-3-1.jpg — official: black SRS-ULT30 studio front (Sony Japan)
• images/sony-ult-field-3-2.jpg — promo: ULT POWER SOUND / ULT FIELD 3 with speaker + strap
• images/sony-ult-field-3-3.jpg — black ULT Field 3 studio front (existing)
• images/sony-ult-field-3-4.jpg — promo: white/green/black colorways lineup
• images/sony-ult-field-3-5.jpg — promo card: white ULT Field 3, 24h battery, IP67, strap
• images/sony-ult-field-3-6.jpg — promo card: black ULT Field 3, 24h battery, IP67

Full manifest: [internal image manifest — not shipped] §14. All six verified 2026-09-20 as SRS-ULT30.

Research date: 2026-09-20. Specs via sony.com and launch coverage. Community via TechRadar review + social search (mostly sponsored), Sept 2026.

Long-term durability & warranty-claim reality (enrichment, Sept 2026)

• What survives: Sony's build quality on the ULT line is consistently praised — IP67 and the ruggedized chassis hold up. Reviewers single out the toughness.
• What wears/breaks: (1) Battery decay — sealed battery, no user replacement. (2) Strap hardware — the detachable strap is a wear point; check the anchors.
• Warranty-claim reality: 1-year Sony warranty; service is bureaucratic but functional for clear defects.

Version history — year by year (enrichment, Sept 2026)

• 2023: EXTRA BASS-era models (XB43/XB33) aging out.
• 2024: ULT Field 1 launches — the new bass-forward lineup.
• 2025: ULT Field 3 launches (April) — woofer/tweeter, 24 h battery, powerbank function, $199.
• 2026: Still current; no successor announced.

Head-to-head vs closest rivals

• vs JBL Charge 6 ($199.95): the direct rival at the same price — the Charge 6 has the Auracast ecosystem and stronger reviewer consensus on sound; the Field 3 has the shoulder strap, powerbank function, and longer battery claim. Reviewers lean JBL for audio.
• vs Ultimate Ears WONDERBOOM 4 ($99.99 MSRP, deals ~$51–60): half the price and half the weight for personal listening; the Field 3 is the group speaker.
• vs JBL Flip 7 ($149.95): smaller, cheaper, lighter (560 g vs 1,200 g); the Field 3 is the bass-heavy bigger-room pick.
• Bottom line: buy the Field 3 if you want maximum bass and the strap — but audition the tuning first, and don't expect the JBL-level reviewer consensus.

Care & maintenance

• Ports: keep the USB-C cover seated in dust/rain.
• Battery: top off before the season; don't store depleted.
• Strap: inspect strap anchors before trips; replace if fraying.

Buying traps

• No aux input: there is no 3.5 mm jack — Bluetooth or nothing.
• Bass tuning: the ULT mode is polarizing; reviewers prefer the JBL Charge 5/Sonos Roam 2 for balanced sound.
• Sponsored noise: much of the social content around this model is sponsored — weight reviewer and owner voices more heavily.

Community Verdict — added voices (Sept 2026 enrichment)

• TechRadar (current review): praised ruggedness and battery, criticized audio quality; preferred the JBL Charge 5 or Sonos Roam 2 for sound.
• Social signal (Sept 2026): mostly sponsored lifestyle content; organic exact-model owner discussion was thin — a weak community signal relative to JBL and UE rivals.

Key Specs gap-fill (enrichment — Sept 2026)

Weight: 1,200 g = 42.33 oz = 2.65 lb. Battery: 24 h claimed; 10-min quick charge ≈ 2 h playback. Charging: USB-C; powerbank function (charges other devices — the camp-friendly differentiator). Rating: IP67 (dustproof, submersible). Bluetooth: 5.2. No 3.5 mm aux input. Carry: detachable shoulder strap.