The soundcore Boom Go 3i Black is a compact outdoor speaker from Anker’s soundcore line, model D5103, built to keep going after your phone gives up. soundcore rates it at 15W with BassUp 2.0 and 92 dB peak loudness, seals it to IP68, connects it over Bluetooth 6.0, and fits a 4,800mAh battery that doubles as a power bank. The black version is the plain, go-anywhere option of the range: with the lights off it looks like a simple dark speaker, and with the lights on the colours stand out most against the black grille.
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Battery life and the conditions behind 24 hours
soundcore quotes up to 24 hours on one charge, measured at 50% volume with the lights off and BassUp Mode on. In Eco Mode under the same 50% volume and lights-off conditions the figure rises to 40 hours. At 100% volume with the lights on and BassUp active it falls to about 6 hours. soundcore says these are lab results with the default EQ and that real playtime varies with what you play. For a day at the beach at moderate volume the soundcore Boom Go 3i Black is comfortable; a loud evening with every light mode running is a one-night job. soundcore does not publish the charging time.
Power bank for your phone
The 4,800mAh battery can top up a phone. In soundcore’s lab test, a fully charged speaker took an iPhone 17 from 0% to 40% in about 60 minutes and up to 63% in total, and soundcore notes that charging speed varies by device. That is an emergency top-up rather than a full recharge, and every percent you give the phone comes off the speaker’s own playtime. On a camping night or a long drive in the desert, that trade is usually worth making when the phone is the only map you have.
Sound, BassUp 2.0 and lights
The soundcore Boom Go 3i Black puts out 15W, and BassUp 2.0 lifts the low end so kick drums keep some weight outdoors, where bass disappears quickly into open air. The lights offer 6 music-reactive modes and 8 ambient modes with colours you set in the soundcore app, which also handles EQ, BassUp, the workout timer, the emergency alarm and the voice amplifier. Two units pair as a stereo set in TWS mode, and Auracast connects three or more compatible speakers; soundcore notes Auracast does not work with older PartyCast speakers.
Emergency alarm, voice amplifier and IP68
Press the power button five times and the soundcore Boom Go 3i Black sounds a 92 dB alarm that soundcore says can be heard 50 metres away. The voice amplifier turns a phone connected over Bluetooth into a microphone so a group can hear you. IP68 means the speaker is sealed against dust and rated for submersion, so sand, rain and pool splashes are not a problem, and soundcore says it was tested to survive drops of up to 1 metre. soundcore does not say it floats, so do not rely on that. After salt or pool water, rinse it with fresh water and let it dry before charging.
Why the black version
Black is the colour for people who use a speaker as a tool rather than an accessory. It hides sand, sunscreen marks, dust and car-boot scuffs far better than the beige or pink versions, and it looks at home on a site, in a workshop or clipped to a work backpack. The dual-slot silicone strap works as a clip for a bag or bike frame, or as a hand strap. With the lights switched off the soundcore Boom Go 3i Black disappears on a desk or a shelf; with them on, the black grille gives the strongest contrast of any colour in the range.
Who This Is Not For
The soundcore Boom Go 3i Black is not for large outdoor parties: 15W suits a room or a small group, not a big garden. Battery life drops to about 6 hours at full volume with the lights on, and using the power bank drains the same battery. soundcore does not publish the weight, dimensions, charging time, codecs or frequency response, so buyers who choose by those numbers will not find them. Auracast does not connect to PartyCast speakers, and soundcore does not claim that it floats.
Ordering from Totot
Totot sells the soundcore Boom Go 3i Black brand-new and genuine in its sealed box, backed by a 1-year warranty from Totot. We deliver UAE-wide in up to 3 business days, and delivery is free on orders from AED 300, with cash on delivery or instalments via Tabby and Tamara. Items that arrive defective or not as ordered can be returned within 14 days, and any shipping damage should be reported within 48 hours of delivery. Browse more in our Portable Speaker range, or see the official soundcore Boom Go 3i page.
soundcore Boom Go 3i Black Specifications
- Model: soundcore Boom Go 3i, D5103
- Colour: Black
- Output: 15W, up to 92 dB peak loudness
- Bass: BassUp 2.0
- Playtime: Up to 24H at 50% volume, lights off, BassUp; up to 40H at 50% in Eco Mode; about 6H at 100% with lights and BassUp (lab, default EQ)
- Power bank: Built-in 4,800mAh; iPhone 17 from 0% to 40% in about 60 minutes, up to 63% on a full charge (lab)
- Bluetooth: 6.0
- Multi-speaker: TWS stereo pairing; Auracast with 3+ devices (not PartyCast)
- Lights: 6 music-reactive and 8 ambient modes, custom colours
- Protection: IP68 dust and water; drop-tested up to 1 m
- Extras: 92 dB emergency alarm (heard up to 50 m), voice amplifier, workout timer
- Strap: Dual-slot silicone strap: clip mode or hand strap
- Weight, size, charging time: Not published by soundcore
- Warranty: 1-year warranty from Totot
soundcore Boom Go 3i Black FAQ
How long does the soundcore Boom Go 3i Black battery last?
24 hours at 50% volume with lights off in BassUp Mode, up to 40 hours in Eco Mode, and about 6 hours at full volume with lights on.
Is the soundcore Boom Go 3i Black waterproof?
Yes. It is rated IP68 against dust and water, and soundcore says it survives drops of up to 1 metre.
Can the soundcore Boom Go 3i Black charge my phone?
Yes. In soundcore’s test its 4,800mAh battery took an iPhone 17 up to 63% on a full charge.
Can I pair two speakers?
Yes. Two units pair as a stereo set, and Auracast links three or more compatible speakers.
Does soundcore publish the weight?
No. The weight and dimensions are not listed on soundcore’s product page.
Does black show sand and dirt?
No, much less than the beige or pink versions, which is why it suits beach and camping use.
Is it genuine?
Yes. We sell the genuine soundcore Boom Go 3i Black, brand-new in the sealed box.
How long does delivery take?
No more than 3 business days to any emirate, free from AED 300; the live fee for your order appears at checkout.
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