Soundcore Boom 3i Bluetooth Speaker, 50W

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Product guide

Soundcore Boom 3i Bluetooth Speaker, 50W

Soundcore Boom 3i is a portable Bluetooth speaker listed with 50 Watts of maximum output and features aimed at outdoor listening. Its claimed waterproof and dustproof protection, floating playback, detachable strap and app controls suit poolside or travel use, while the stated 16-hour playtime is a manufacturer claim rather than a measured result.

At a glance

The listing claims an IP68 waterproof and dustproof rating and that the speaker stays upright during floating playback.
The manufacturer claims 50 Watts output, bass down to 56 Hz and BassUp 2.0 processing.
Listed app features include a voice amplifier, emergency alarm and Buzz Clean.
Manufacturer-stated playback time is 16 hours. A different customer summary describes use lasting up to two days, which is customer-reported experience, not a guaranteed runtime.

Price

£49.99Save 50%

Reference price: ~~£99.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

A detachable strap and claimed floating playback offer practical carrying and water-side use options.
App control and the listed voice amplifier, emergency alarm and Buzz Clean add functions beyond Bluetooth playback.
The explicit contents list includes a USB-C to C cable and detachable strap.

Cons

At 830 Grams, this is a substantial portable speaker rather than an especially light travel option.

Technical specifications

25 specifications

Identity
Brand	Soundcore
Model	soundcore boom 3i
Speaker type	Portable Speaker
Colour	Black

Audio
Maximum output power	50 Watts
Frequency response	56 Hz
Audio output mode	Stereo
Number of audio channels	2.0
Audio driver type	Dynamic Driver
Audio encoding	Advanced Audio Coding (AAC)

Connectivity and controls
Wireless connection listed	Bluetooth
Control method listed	App
Compatible devices	Smartphone, Laptop, Tablet, Personal Computer
Bluetooth range	100 Metres

Features and protection
Listed features	Bass Boost, Dustproof, LED Light, Stereo Pairing, Waterproof
Water resistance	Waterproof
Material	Plastic Or Metal

Dimensions and installation
Mounting type	Tabletop
Dimensions (D × W × H)	21D x 8.5W x 7.8H centimetres
Weight	830 Grams
Speaker size	3.7 Inches

Power and warranty
Battery charge time	3.2 Hours
Battery requirement listed	1 C batteries required.
Product warranty	18 months
Warranty type	Limited

What to know before buying

Listing details to confirm

The listing's battery details are inconsistent: it claims 16-hour playtime and gives a 3.2-hour charge time, but also lists one C battery as required. The exact battery arrangement and applicable conditions are unconfirmed. Waterproof, dustproof, saltwater-resistance, drop-resistance and floating-performance statements are manufacturer claims, not independently established here.

What’s in the box

Included

Boom 3i speaker
Detachable strap
Quick Start Guide
USB-C to C cable

Who is it for?

A good fit for

Outdoor listening near pools, beaches or boats, where the claimed waterproofing and floating playback may be useful.
Listeners who want a portable Bluetooth speaker with app controls, lighting and bass-focused sound claims.
Buyers looking for a strap-equipped speaker for travel or outdoor activities.

Less suited to

Buyers who need independently verified waterproof performance or confirmed battery specifications before purchase.
Anyone prioritising a particularly lightweight speaker.

Soundcore Boom 3i Bluetooth Speaker, 50W · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 1,244 ratings

5 stars71%71%
4 stars20%20%
3 stars5%5%
2 stars2%2%
1 star2%2%

Customer feedback highlights clear high frequencies, strong bass, build quality, Bluetooth connection and lighting, with the customer summary also describing battery life as lasting up to two days. Those reports are positive impressions, not verified performance figures. They are relevant to buyers considering music and outdoor use, but do not resolve the listing's inconsistent battery information or independently confirm its protection claims.

Positive themes

Customers praise the sound, particularly its clear high end and bass.
The customer summary reports positive impressions of build quality, Bluetooth connectivity, battery life and lighting.

Frequently asked questions

Is the Boom 3i suitable for use in water?

The listing claims an IP68 waterproof and dustproof rating and floating playback. These are manufacturer claims, so buyers needing a particular level of water protection should confirm the conditions for their intended use.

How long does the battery last?

The manufacturer feature text claims 16 hours of playtime. The listing also gives a 3.2-hour charge time but has an inconsistent battery-requirement entry, so treat runtime and charging details as claims rather than guaranteed results.

What is included in the box?

The explicit contents list names the Boom 3i speaker, detachable strap, Quick Start Guide and USB-C to C cable.

Can it pair with another speaker for stereo?

Stereo pairing is listed as a feature, but the supplied details do not explain setup or confirm the behaviour for a particular second speaker.