Soundcore Boom Go 3i

Hardware

The Soundcore Boom Go 3i comes in four cheerful colors: black, beige, blue, and pink. Thanks to the elastic carry strap — which works both as a wrap-around attachment and as a loop for hanging — those 380 grams are easy to manage. And if the speaker takes a tumble from a meter up, that’s not a problem either: the combination of impact-resistant plastic, silicone casing, and a sturdy front grille keeps it well protected.

Behind that grille, four LED strips dance in time with the music — or simply glow on their own. The dynamic 2-inch driver delivers 15 watts of sound at up to 92 decibels.

Music playback is controlled via buttons on the top, while additional controls sit on the side panel, next to a small display showing information such as battery level, BassUp status, and TWS pairing. The display also indicates when a device is connected for charging — the Boom Go 3i can double as a power bank, though it’s more of an emergency option than a full-charge solution. As Soundcore states: in lab tests, the speaker was able to charge an iPhone 17 to 63% from full, and from 0% to 40% in just 60 minutes.

Specs and Features

Equipped with Bluetooth 6.0, the Soundcore Boom Go 3i delivers a stable connection at over 30 meters in open line-of-sight conditions. Multipoint is also on board, allowing simultaneous pairing with two devices. Two Boom Go 3i units can be linked via TWS for true stereo, while Auracast enables multiple compatible speakers to be chained together in parallel.

There’s a siren function that triggers a 92-decibel alarm after pressing the power button five times — which can genuinely come in handy if you get lost or find yourself stuck on a hiking trail and need to signal for help.

Through the Soundcore app, you also get a voice amplifier that can either boost your voice like a megaphone or play back a recorded message on loop.

The app includes an EQ section with four presets and a 9-band EQ for custom sound profiles. The BassUp 2.0 function can be activated either in the app or directly on the speaker to squeeze more low-end punch out of the compact cabinet. In ECO mode, non-essentials like EQ, BassUp, and the lights are all switched off to extend battery life. The mode button on the housing can be customized in the app with various functions. There’s also the option to pull relaxing nature sounds or ambient audio from a built-in library, or to build your own personal soundscape using an extensive sound matrix.

Under the lighting section, the app offers various presets for beat-synchronized flashing or ambient glow. In both modes, the speaker lights up and pulses even without music playing — something I find a little distracting, but thankfully the mini light strips can be turned off entirely. There’s also a workout timer that keeps the lights running as a visual cue to stay active.

Additional features include a sleep timer and firmware management. The speaker can play an audible tone to help you locate it if it’s still paired and you’ve misplaced it behind the sofa. And then there are the Anka AI functions, which enable cross-device features like real-time translation: speak into your phone in English, and the speaker outputs the German translation live. It works the other way around too, and supports a wide range of languages.

Sound

Among compact portable speakers, the Soundcore Boom Go 3i brings noticeably more drive and presence to the table — partly just because it’s a size larger. The light-up little soundmaker impresses with a somewhat more refined sound signature and significantly more bass, which BassUp 2.0 can push even deeper and more defined.

Like most speakers of this type, the Boom Go 3i sounds best when played close to the listener — hanging at the beach, tucked into a small room, used in an intimate setting. It’s best kept below around two-thirds of its maximum volume; above that, things start to get harsh and unbalanced, which is fairly typical for a speaker this size.

Complex music is also a stretch — the speaker struggles to resolve it cleanly, especially at higher volumes.

A bit of electronic music, gentle beats, a soft guitar line, a cool rhythm. Everyone sitting close together, listening in, while the stars shine overhead and a light show shimmers below — that’s the right way to listen to this one.

Verdict

The Soundcore Boom Go 3i makes a convincing case for just how much you can pack into a small speaker. Attractive lighting, solid sound, excellent battery life, and extras like Auracast and a power bank function all hit the mark. Add the small display and a customizable button on the genuinely sturdy housing — still compact and light enough to take anywhere or clip onto anything with the elastic strap — and the modest premium over more compact alternatives starts to make real sense.

FAQ: Frequently Asked Questions About the Soundcore Boom Go 3i

How long does the battery last?

Up to 40 hours when volume is set no higher than 50%, ECO mode is on, and the lights are off. A more realistic figure (volume around 75%, lights on) is closer to seven to eight hours.

Can the speaker be used as a power bank?

Yes, but only for emergencies. According to the manufacturer, the Boom Go 3i can charge an iPhone 17 to 63% from full, and from 0% to 40% in 60 minutes.

Is the Soundcore Boom Go 3i waterproof?

Yes, with an IP68 rating — full protection against dust and sustained submersion in water, including fresh water, salt water, and oil.

What special features does the speaker offer?

Siren alarm (92 dB), voice amplifier (megaphone function), real-time translation via Anka AI, LED light show, Auracast for multi-speaker chaining, and TWS stereo pairing.

How loud can the Soundcore Boom Go 3i get?

Up to 92 decibels at 15 watts. Above two-thirds of maximum volume, however, the sound becomes harsh and unbalanced.