Sony ULT FIELD 5 Bluetooth Portable Speaker, 25-hour battery, IP67

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Product guide

Sony ULT FIELD 5 Bluetooth Portable Speaker, 25-hour battery, IP67

Sony ULT FIELD 5 is a portable Bluetooth speaker with two bass modes, multicoloured 360-degree lighting and a detachable shoulder strap. Its claimed 25-hour battery life and IP67 protection suit outdoor listening, though customer feedback reports mixed experiences with battery endurance and weight.

At a glance

Choose between Deep Bass and Attack Bass modes, or adjust sound using the app's 10-band equaliser.
A woofer, two tweeters and dual passive radiators are listed. The speaker can be positioned horizontally or vertically.
Manufacturer claims up to 25 hours of battery life and 100 minutes of playback after a 10-minute charge. Actual endurance may vary, and customer feedback is mixed.
IP67 protection is claimed alongside dustproof and rustproof construction. The 360-degree lights can be controlled in the app.
Party Connect is described as linking up to 100 compatible Sony speakers. Stereo Pair is also listed.

Price

£159.00Save 20%

Reference price: ~~£199.00~~

Price checked: 14 Nov 2026

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Often bought together

co2CREA Hard Travel Case for Sony ULT Field 5 Portable Speaker | Shockproof EVA Shell with Detachable Shoulder Strap for Outdoor Travel, Case Only

£17.99

Pros and cons

Pros

Two distinct bass modes and app-based equaliser offer ways to tailor the sound.
Detachable shoulder strap and horizontal or vertical placement add carrying and setup flexibility.
The claimed IP67 rating and dustproof and rustproof design suit outdoor use where exposure is a concern.
The claimed quick charge and ability to charge USB devices add practical power features.

Cons

At 4 Kilograms, it is a substantial load for a speaker intended to be carried around.

Technical specifications

16 specifications

Identity
Brand	Sony
Model	ULT FIELD 5

Connectivity and controls
Wireless connection listed	Bluetooth
Control methods listed	App

Power and battery
Battery life listed	25 Hours

Dimensions and installation
Mounting type listed	Tabletop
Weight listed	4 Kilograms
Dimensions	12.5D x 32W x 14.4H centimetres

Materials and protection
Water resistance listed	Waterproof
Material listed	Plastic

Audio
Audio output mode	Stereo
Speaker arrangement	Woofer/Tweeter(L/R)
Frequency response	20 Hz

Design and features
Colour	Off-White
Charging feature	Quick Charge
Protection rating	IP67 (Waterproof and Dustproof)

What to know before buying

The 25-hour figure is a manufacturer claim, not a guaranteed runtime. Customer feedback is mixed, with some reporting less endurance, and the stated 4 Kilograms may make the speaker feel heavy for portable use.

What’s in the box

Included

Shoulder strap
USB cable (C to C)

Who is it for?

A good fit for

Listeners wanting bass-focused portable sound with selectable bass modes and adjustable EQ.
Outdoor gatherings where claimed IP67 protection, lighting and a shoulder strap are useful.
People seeking a speaker that can also charge USB devices.

Less suited to

Buyers prioritising a particularly lightweight speaker for frequent carrying.
Anyone who needs a guaranteed 25-hour runtime or verified performance under specific listening conditions.

Sony ULT FIELD 5 Bluetooth Portable Speaker, 25-hour battery, IP67 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 487 ratings

5 stars81%81%
4 stars11%11%
3 stars3%3%
2 stars2%2%
1 star3%3%

Customer feedback praises sound quality, especially punchy bass, and Bluetooth connectivity. Battery life and weight draw mixed reactions. This matters for buyers who plan long sessions away from a charger or expect to carry the speaker often. The listing's 25-hour battery claim is not a guarantee, and the stated weight is 4 Kilograms.

Positive themes

Customers praise the sound quality, particularly the punchy bass.
Bluetooth connectivity is appreciated. One customer reports using it with a non-Bluetooth music keyboard.

Mixed feedback

Battery-life feedback is mixed, with some customers saying it falls short of the advertised 25 hours.
Weight feedback is mixed, with customers describing the speaker as heavy.

Frequently asked questions

How long does the Sony ULT FIELD 5 battery last?

The listing claims 25 hours. Customer feedback is mixed, and some report that it does not reach that figure, so treat it as a claimed maximum rather than guaranteed runtime.

Can it be used outdoors?

The listing claims IP67 waterproof and dustproof protection and also describes it as rustproof. This is a manufacturer claim, not an independent test result.

What are the ULT sound modes?

Deep Bass boosts lower frequencies for added depth, while Attack Bass is described as increasing sound pressure.

What comes in the box?

The listed contents are a shoulder strap and a USB cable (C to C).