Potato score: 82.8

83%

Sony ULT POWER SOUND™ series | ULT FIELD 5 Wireless Portable Speaker | Black #1
Sony ULT POWER SOUND™ series | ULT FIELD 5 Wireless Portable Speaker | Black variant 1
Sony ULT POWER SOUND™ series | ULT FIELD 5 Wireless Portable Speaker | Black variant 2
Sony ULT POWER SOUND™ series | ULT FIELD 5 Wireless Portable Speaker | Black variant 3
Sony ULT POWER SOUND™ series | ULT FIELD 5 Wireless Portable Speaker | Black variant 4
Sony ULT POWER SOUND™ series | ULT FIELD 5 Wireless Portable Speaker | Black variant 5

Sony ULT POWER SOUND™ series | ULT FIELD 5 Wireless Portable Speaker | Black

Japan flag
View at Sony
  • Press the ULT button to experience the powerful sound of ULT1 and ULT2 bass boost modes.
  • Shoulder strap for easy portability9
  • Link Speakers together with the Party CONNECT Button.6
  • IP67 waterproof, dustproof, durability.3,4
  • The party never stops with up to 25 hours of battery life.2 
  • Quick charge: 10 minutes of charge gives up to 2 hours of playtime.2
  • Hear your music exactly as you like it with 10-Band Equalizer.8
  • Ambient light that perfectly matches the vibe of your music.
  • Enhanced power and sound pressure, and truly immersive bass.
  • 2-way active design with dedicated woofer and tweeter.
  • Grab-and-go design.
  • Two different colors to choose from.
  • Enhance your experience with Sony | Sound Connect app.5
  • Connect two ULT FIELD 5 speakers wirelessly with Stereo Pair.6
  • USB Type-C® charge and charge other devices.

Massive bass. Ultimate vibe.


Dive into the front row of a concert with a speaker built for music lovers. Experience heart-pounding audio with dynamic sound and massive bass. Get ready for the ultimate vibe.


AT A GLANCE

All your favorite features in the box


Enjoy a superior music listening experience with powerful boosted sound

Get ready for powerful, boosted sound with the ULT button. Select ULT1 for deep, low-frequency bass or ULT2 for powerful, punchy bass to transform your listening experience.


Boosted sound to feel every beat


Boost low-frequency sounds with enhanced sound pressure and deeper bass. Choose from two types of powerful bass sound, to feel every beat more and set your pulse racing, with lower frequencies than you thought possible from such a compact speaker. Fill any space with atmosphere, deepen your musical experience and make anywhere feel like a party.


Hit the button. Feel the bass.


Press the ULT button to enjoy the powerful sound of ULT1 and ULT2. Select ULT1 for deeper, lower frequency bass. Select ULT2 for powerful, punchy bass.7


Listen loud and clear


The technology in the ULT FIELD 5 works in harmony for better sound quality. The X-Balanced Speaker Unit delivers deep, punchy bass, and clear vocals even at high volumes. Tweeters provide crisp and spacious sound for high-frequencies. And the passive radiators are optimized to enhance bass sound. Put it all together and you get a great sound worth sharing with your friends.


Powerful sound with X-Balanced Speaker Unit

Our X-Balanced Speaker Unit features a non-circular diaphragm, for an increased surface area compared to conventional speaker units. The approx. 79mm x 107mm large woofer unit is designed for clear and deep bass sound.


A richer, clearer, deeper experience

The non-circular diaphragm not only maximizes the area of speaker diaphragm but it also increases sound pressure for deeper and punchier bass, less distortion and greater vocal clarity. Altogether, it elevates your listening experience.


Sound Field Optimization

By detecting ambient noise, sound settings can be automatically tuned to deliver clear sound even in noisy or outdoor environments.


10-Band Equalizer

Select your favorite sound setting and hear your music exactly as you like it.8


A powerful deep bass boosted music experience, to be enjoyed anywhere

With a shoulder strap,9 long battery life, and resistance to water, dust, and rust, this speaker is built to go anywhere with ease.3


It's easy to take your music with you


The included shoulder strap makes it easy to transport your speaker wherever you go, turning any location into a party venue for your music.9


Take the party outside


With IP67 waterproof and dustproof rating, this speaker is ready for listening by the pool, at the park or wherever you like, no matter how dusty the surface – and there’s no problem rinsing it off.3 It’s also salt-water resistant, which means you can enjoy music even at the beach.


The party never stops

Up to 25 hours of battery life2, the ULT FIELD 5 will keep your party powered all through the night.


Charge in just 10 minutes

With quick charging, you can get up to 2 hours of playing time with just 10 minutes of charging.2


Take care of your battery

With the Battery Care function, you never have to worry about overcharging your speaker, which means it will last longer.


The choice is yours


Stood up or flat. The ULT FIELD 5 is designed for optimal sound either way, so you can use it whichever way suits your space.


360° Party Light to liven up your party

360° Party Light produces subtle lighting that’s perfect for illuminating parties or bringing a little mood into your everyday life. The illumination will synchronize with your music and can be controlled via the Sony | Sound Connect app.5


Music that really gets you moving with Party Connect

Link up to 100 compatible speakers to synchronize music and lighting through Party Connect – fill any location with powerful sound to create the ultimate party atmosphere in any space.6 And there's no app required, just add speakers with the dedicated CONNECT button.


Add an extra compatible speaker for rich stereo sound with Stereo Pair


Connect two ULT FIELD 5 speakers, wirelessly with Stereo Pair, to activate stereo sound and experience a wider, more immersive listening experience.10,11


Total convenience, total customization


The ULT FIELD 5 is even better with the Sony | Sound Connect app.5 The simple interface lets you dial in your ideal sound and shortcut settings, including lighting control. It can even keep track of your recent listening history.


Check your charge on the app


Keep an eye on your battery level on the Sony | Sound Connect app.12


More choice with Multipoint Connection


For total convenience, the ULT FIELD 5 can be paired with two Bluetooth® devices at the same time, automatically switching when a call is received, or playback is started on either device.6


Bluetooth® Fast Pair6


In one tap, the ULT FIELD 5 enables quick, effortless Bluetooth® pairing with your Android™ devices.6,12


USB Type-C® charge and charge other devices


The ULT FIELD 5 features a USB Type-C® port for convenient charging. The same port lets you use the ULT FIELD 5 as a portable powerbank to charge your devices.


Aiming to achieve a zero environmental footprint


Inspired by the beauty of the world, we are doing our part to help preserve the Earth while still offering superior sound quality and listening experiences. Our goal is achieving a zero environmental footprint across the entire Sony Group by the year 2050, and we are fast-tracking numerous environmental initiatives.


Environment in mind


Our products are designed not only to provide excellent sound quality, but also to consider the environment. Recycled Plastic is partially used for the body of the ULT FIELD 5.13 No plastics are used in the packaging material.14 This reflects how we strive to reduce the environmental impact of our products.


Accessibility


We believe technology should make the world more interactive, more creative, more entertaining, and more inclusive. By incorporating human-centric, inclusive design into our audio products, we deliver our KANDO experience to all users, regardless of age, ability or environment.

Dealers selling Sony near you

Join us at T.H.E. Show SoCal 2026!

T.H.E. Show

+

HiFi Hub Logo

Overall Score 83/100

Rating for [object Object]

Nicely Roasted

The ULT FIELD 5 delivers a lively, warm, rich presentation with a crisp treble and clear midrange that keeps vocals forward, while party-ready LEDs and robust connectivity (LDAC, multi-pairing) bolster its appeal. Reviewers from Sound Advice praise battery life and durability, and Best of High End flags its outdoor-ready IP67 design.

Sound Advice

"the low frequencies still lack depth and richness - the sound remains somewhat flat."

Pros

  • Warm, natural midrange with clear, forward vocals that preserve detail and presence.
  • Crisp, detailed treble and lively top end that renders electronic tones with clarity and minimal harshness.
  • Durable, outdoor-ready IP67 build, long battery life (~25 hours) and extensive connectivity (Bluetooth 5.3/LDAC, multi-pairing, USB-C) for versatile use.

&

Cons

  • Bass lacks deep punch and low-end richness; the 'ULT' boost raises level but doesn’t fully add depth.
  • Relatively bulky (about 3.3kg) for a portable speaker and the included shoulder strap is fiddly to attach.

Sound Quality

82/100

Bass

76/100

Reviews repeatedly note clear bass note differentiation but a lack of depth, punch and richness; bass can be more prominent in 'ULT' mode without distortion, yet overall low-end is described as hollow and relatively flat.

Mid

85/100

Midrange is described as natural, warm and full with clear vocals; however the 'ULT' bass mode can swamp mids and reduce vocal clarity and detail when engaged.

Treble

87/100

Top end is consistently called crisp, bright and detailed with little harshness; reviewers praise the clarity and lively presentation of electronic tones and upper-register detail.

Soundstage Imaging

83/100

Soundstage is fairly wide and gives instruments room, especially when oriented horizontally; some small details can be lost and vertical positioning reduces expansiveness.

Dynamics

82/100

Speaker delivers lively, warm presentation with no noticeable low-frequency distortion even with bass boost active; lacks the punch and headroom of larger designs but handles dynamic content well for its class.

Show Less

Build Quality

84/100

IP67-rated, durable rectangular construction with radiators and colour-pulsing LEDs; 3.3kg size makes it bulky to carry and the included shoulder strap is fiddly, but overall fit and finish are solid.

Features Connectivity

90/100

Bluetooth 5.3 with SBC/AAC/LDAC, multi-pairing, 3.5mm input, USB-C charging, app control (SoundConnect) and LED/party features provide a rich connectivity/features set for a portable wireless speaker.

Value for Money

80/100

At the listed ~£259-£330 range reviewers call it 'doesn't come cheap' but also 'a great buy' for those wanting a rugged, bright-sounding unit; solid feature set and durability help justify the price in a crowded market.

Reviews

Online Reviews & Mentions

Forum Mentions

No forum mentions found yet

store
store
store
store
store
store

FAST, EASY & NEAR

Find Sony Verified Dealers Near You

Sony dealers in the map

Audio Video Integration logo
Plastinka logo