Wireless speakers / Compare

soundcore Boom 3i vs Ultimate Ears BOOM 3

A

Product A: soundcore

Boom 3i

53 of 96 known

Change soundcore Boom 3i

Compare the Ultimate Ears BOOM 3 with

Search wireless speakers

B

Product B: Ultimate Ears

BOOM 3

54 of 96 known

Change Ultimate Ears BOOM 3

Compare the soundcore Boom 3i with

Search wireless speakers

All 96 fields

Every value links to where we found it.

Only differences

Asoundcore Boom 3i

BUltimate Ears BOOM 3

General

5 of 8 differ

Series

Boom1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Current Boom family title. Boom 2, Boom 2 Plus and Boom Go 3i are distinct products.

BOOM1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

D5100, D51000101Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Selected US Adventurer Black single-speaker SKU D5100010, variant 45145323405502, verified by public US Shopify response. D5100 hardware separately printed on original QSG. No guessed suffix or D5103 code.3Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speaker.jsRead 8 October 2026Public US response ties variant 45145323405502 to D5100010, Adventurer Black / 1 and available true. Read through observed maker Shopify domain without private account/API.6Owner's manualfccid.io/m/94d3defbf03cdd3e9935981694a5d9c2dd50851ca87205dd80064d1c216d3f37.pdfRead 8 October 2026Original manufacturer QSG cover D5100, not an autogenerated manual. FCC-hosted copy.

984-001348, 984-001350, 984-001351, 984-0013522Maker product pagelogitech.com/en-us/products/speakers/bluetooth-speakers/boom-3.htmlRead 23 October 2026This page lists part number 984-001350. The other colour part numbers come from the retailer pages in the sources.18Retailer pagegreentoe.com/product/Ultimate_Ears_BOOM_3_Portable_Wireless_Bluetooth_Speaker__Night_Black__984-001348Read 23 October 2026Night Black is part number 984-001348. Lagoon Blue is 984-001350 on the maker page.19Spec databasegearbrain.com/devices/3C308330C41B11EB91B0D0B61C6BC496.htmlRead 23 October 2026Ultraviolet Purple is part number 984-001351.20Spec databasegearbrain.com/devices/081361C5C3FC11EB91B0D0B61C6BC496.htmlRead 23 October 2026Sunset Red is part number 984-001352.

GTIN / EAN

Not available

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

18 June 20257Press releaseanker-in.com/posts/soundcore-launches-boom-3i-outdoor-speaker-with-floatable-design-and-enhanced-durabilityRead 8 October 2026Official parent maker announcement June 18, 2025.

30 August 20188Press releasenews.logitech.com/press-releases/news-details/2018/Introducing-Ultimate-Ears-BOOM-3-and-MEGABOOM-3-Packed-With-New-Features/default.aspxRead 23 October 2026

Status

Available1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Current single-speaker variant available for sale. Inventory is distinct from release status.3Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speaker.jsRead 8 October 2026Selected single-speaker variant available. No numeric popularity invented.

Available1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026US store sells it at 149.99 USD with an Add to cart button (read 2026-10-23). RTINGS says the BOOM 4 replaced it, but the maker still sells it.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Ultimate Ears BOOM 411Reviewrtings.com/speaker/reviews/ultimate-ears/boom-3Read 23 October 2026Public notice: this speaker was replaced by the Ultimate Ears BOOM 4.21Reviewtrustedreviews.com/reviews/ultimate-ears-boom-4Read 23 October 2026Trusted Reviews says a successor to the UE Boom 3 finally arrived in the Boom 4.

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$139.997Press releaseanker-in.com/posts/soundcore-launches-boom-3i-outdoor-speaker-with-floatable-design-and-enhanced-durabilityRead 8 October 2026Official US single-speaker $139.99. Future Adventure Set $149.99 separate. Current shop $129.99 and updated review widget $129.99 are not launch price.

$149.998Press releasenews.logitech.com/press-releases/news-details/2018/Introducing-Ultimate-Ears-BOOM-3-and-MEGABOOM-3-Packed-With-New-Features/default.aspxRead 23 October 2026Suggested retail price for BOOM 3 is 149.99 USD. US price, tax treatment not stated.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

€1509Press articlemobiflip.de/ue-boom-megaboom-3Read 23 October 2026German IFA 2018 launch report: UE Boom 3 costs 150 Euro. Igor'sLAB also gives a German EIA of 150 euros. Stored as the reported 150. No maker euro document was found. Tax treatment not stated.10Reviewigorslab.de/en/ultimate-ears-boom-3-in-test-bluetooth-party-cracker-or-windyRead 23 October 2026Review states an EIA (German list price) of 150 euros.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Current US selected offer and USD pricing.

US1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026US store page, reference market.

ColoursiThe maker's own colour names

Adventurer Black1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Only Adventurer Black reference represented.3Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speaker.jsRead 8 October 2026Exact option1 Adventurer Black and option2 1.

Night Black, Sunset Red, Lagoon Blue, Ultraviolet Purple8Press releasenews.logitech.com/press-releases/news-details/2018/Introducing-Ultimate-Ears-BOOM-3-and-MEGABOOM-3-Packed-With-New-Features/default.aspxRead 23 October 2026Four launch colours: Night (Black), Sunset (Red), Lagoon (Blue), Ultraviolet (Purple). Written as the retailer and archived maker pages write them.

Speaker typeiHome covers speakers made to stay in one place, including smart speakers. A speaker with Wi-Fi or a voice assistant can be of any type.

Portable1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Explicit portable rugged outdoor speaker.

Portable1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Maker calls it a super-portable wireless Bluetooth speaker with a carry loop and battery.

Audio

10 of 18 differ

Audio channelsiSound channels reproduced by one speaker. Pairing two speakers for stereo is separate.

Mono8Reviewsoundguys.com/soundcore-boom-3i-review-the-best-waterproof-bluetooth-speaker-139777Read 8 October 2026Actual review explicitly mono standalone.10Reviewrtings.com/speaker/reviews/anker/soundcore-boom-3iRead 8 October 2026Public verdict explicitly stereo downmix to mono unless paired with another unit.

Stereo3Maker product pageweb.archive.org/web/20230314222408/https://www.ultimateears.com/en-us/wireless-speakers/boom-3.htmlRead 23 October 2026Maker text: stereophonic audio that radiates evenly in all directions. One physical speaker.14Reviewtrustedreviews.com/reviews/ultimate-ears-boom-3Read 23 October 2026Review calls it a stereo speaker with drivers firing in opposite directions.

Audio driversiPowered audio transducers in one speaker. Passive radiators are counted separately. Circular diameter and rectangular width and height have separate columns. Per-driver power must state continuous or RMS basis and battery or mains operation in the source note.

Asoundcore Boom 3i

Driver type	Count
Woofer	1
Tweeter	1

Source4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Specifications state Woofer x1 and Tweeter x1. Per-driver RMS/continuous watts and diameters not published here.7Press releaseanker-in.com/posts/soundcore-launches-boom-3i-outdoor-speaker-with-floatable-design-and-enhanced-durabilityRead 8 October 2026One 40 W woofer sized 3.7 x 2 in and one 10 W 0.65 in tweeter. Continuous/RMS basis and rectangular axes unspecified, so only driver types/counts stored. No per-driver power or geometry invented.

BUltimate Ears BOOM 3

Driver type	Count	Diameter (mm)
Active driver	2	38

Source1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026AUDIO row: two 2 inch drivers and two 2 x 4 inch passive radiators. The 2 inch figure is a nominal class. The lab test measured 38 mm, which is stored. See the Fnac lab source.12Measurementleclaireur.fnac.com/test/27027-test-labo-de-lultimate-ears-boom-3-des-ameliorations-bienvenues-mais-surtout-ergonomiquesRead 23 October 2026Labo Fnac measured the two active drivers at 38 mm diameter and the passive radiators at 40 x 80 mm. The maker rounds to 2 inch.13Reviewm.gsmarena.com/ultimate_ears_boom_3_review-news-35813.phpRead 23 October 2026Two active drivers firing left and right and two passive radiators below them.14Reviewtrustedreviews.com/reviews/ultimate-ears-boom-3Read 23 October 2026Two 2 inch active drivers, each paired with a passive radiator.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

27Press releaseanker-in.com/posts/soundcore-launches-boom-3i-outdoor-speaker-with-floatable-design-and-enhanced-durabilityRead 8 October 2026Explicit pair of bass radiators, separate from powered transducers.

21Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 202614Reviewtrustedreviews.com/reviews/ultimate-ears-boom-3Read 23 October 2026Two passive radiators, one per side.

Rated audio poweriMaker-published total rated continuous audio output. Battery power is used for portable speakers when mains and battery ratings differ. Peak marketing power is separate.

Not available

Not available

Rated audio power on mainsiTotal rated continuous audio output with external power. Store a separate battery rating when the maker publishes both.

Not available

Not available

Audio output power (unspecified rating)iMaker- or reviewer-published audio output power whose continuous or peak rating basis is not stated. This is separate from rated continuous output and explicitly published peak output.

50W1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Current Output specification says 50 W. Guide says Audio Output Power 50 W and review calls it rated. No continuous/RMS or peak basis stated, so only unspecified-rating field is filled. Maker 96 dB alarm is not a reviewer-measured music SPL maximum.4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Literal Audio Output Power 50 W. No continuous/RMS or peak basis, stored only as unspecified rating.

Not available

Peak audio poweriExplicitly published peak audio output. Never substitute for rated continuous output.

Not available

Not available

Frequency response lower limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

Not available

90Hz1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Published 90 Hz to 20 kHz. No tolerance stated.

Frequency response upper limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

Not available

20kHz1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Published 90 Hz to 20 kHz. No tolerance stated.

Signal-to-noise ratio (claimed)

Not available

Not available

Adjustable equalizeriUser-adjustable frequency bands. Selecting fixed sound presets alone does not qualify.

Yes1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Custom adjustable EQ through app, corroborated by actual reviewer 9-band sliders.

Yes1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Key features: 4 presets and a customized tuner.6Maker product pagesupport.logi.com/hc/en-us/articles/16007695217943-How-can-I-customize-the-EQRead 23 October 2026Support article: drag the nodes of any EQ mode in the UE | BOOM app. One custom EQ can be saved for BOOM 3.

Equalizer bandsiNumber of user-adjustable frequency bands. Do not count sound presets.

98Reviewsoundguys.com/soundcore-boom-3i-review-the-best-waterproof-bluetooth-speaker-139777Read 8 October 2026Actual reviewer uses 9-band custom EQ. Manufacturer-provided sample, one-week test, firmware 01.20 and app v3.9.5. Presets not counted as bands.

57Maker product pageultimateears.com/en-us/discover/c/appsRead 23 October 2026Maker app page describes a fully customizable 5-band equalizer in the BOOM app. Trusted Reviews also counts five bands for BOOM 3.14Reviewtrustedreviews.com/reviews/ultimate-ears-boom-3Read 23 October 2026App has four presets and a custom setting with five EQ bands.

Automatic sound adjustmentiAdjusts audio to placement or playback conditions. Keep the named feature and conditions in the source note.

Not available

Not available

Sound modesiNamed playback modes. Battery extension modes are also qualified in battery source notes.

soundcore Signature, Treble Boost, Voice, Balanced, BassUp 2.04Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Named Signature, Treble Boost, Voice and Balanced EQ presets, plus maker-named BassUp 2.0. Buzz Clean maintenance and recorded-message amplification are not music sound modes.

The Standard, Cramped Spaces, Voices, Bass Jump15Reviewtechradar.com/reviews/ultimate-ears-boom-3Read 23 October 2026App presets: The Standard, Cramped Spaces, Voices and Bass Jump, plus a custom tuner. Maker says four presets.

Wireless stereo pairingiTwo compatible speakers can play separate left and right channels.

Yes1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Two identical Boom 3i units split L/R through TWS, distinct from same-content PartyCast groups.4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Two identical units produce separate L/R through TWS, Bluetooth-button hold 2 seconds.

Yes15Reviewtechradar.com/reviews/ultimate-ears-boom-3Read 23 October 2026The app can link two UE Boom 3 speakers for stereo sound. What Hi-Fi and Expert Reviews say the same.16Reviewwhathifi.com/reviews/ultimate-ears-boom-3Read 23 October 2026The Boom app lets you link two Boom 3s for stereo sound. Its tech specs box lists the larger MEGABOOM 3 size and weight, so those values are not used.17Reviewexpertreviews.co.uk/ue/1407679/ultimate-ears-boom-3-review-boom-2-successorRead 23 October 2026Two Boom 3 speakers can run as a stereo pair.

Speaker link protocolsiNamed systems for linking compatible speakers, such as PartyBoost, Auracast or Party Connect. Linking support does not establish compatibility across all models.

True Wireless Stereo (TWS), PartyCast1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Shop highlights TWS. Guide, original QSG, exact FAQ and actual maker top photo explicitly support PartyCast. Reviewer no-party wording is noted, not silently transferred.4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Dedicated PartyCast section synchronizes audio/light across compatible PartyCast units. Real maker top photo visibly has PartyCast button. RTINGS denial is contradicted by several primary sources. FAQ qualifies cross-model light synchronization.5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Questions 19/20 explicitly PartyCast master/secondary behavior. Different models cannot synchronize different light effects, qualifying guide broad wording.6Owner's manualfccid.io/m/94d3defbf03cdd3e9935981694a5d9c2dd50851ca87205dd80064d1c216d3f37.pdfRead 8 October 2026Original QSG independently documents actual PartyCast button use, matching current maker photo and full guide.10Reviewrtings.com/speaker/reviews/anker/soundcore-boom-3iRead 8 October 2026Public comparison says no party mode. Contradicted by own guide, original QSG, current FAQ master/secondary instructions and real top PartyCast button. Maker capability retained with conflict disclosed.

PartyUp3Maker product pageweb.archive.org/web/20230314222408/https://www.ultimateears.com/en-us/wireless-speakers/boom-3.htmlRead 23 October 2026PartyUp in the BOOM app. Works with BOOM, MEGABOOM and HYPERBOOM speakers.

Max linked speakersiPublished maximum in a speaker group. A stereo pair is recorded separately. A figure such as 100+ is stored as 100.

Not available

1503Maker product pageweb.archive.org/web/20230314222408/https://www.ultimateears.com/en-us/wireless-speakers/boom-3.htmlRead 23 October 2026Archived page says over 150 speakers. The press release and the support article say up to 150, which is stored.5Maker product pagesupport.logi.com/hc/en-us/articles/19154583137175-How-To-Use-The-Ultimate-Ears-Boom-AppRead 23 October 2026PartyUp pairs up to 150 speakers. Any BOOM or MEGABOOM can join.

Max Bluetooth group speakersiPublished maximum speakers in one Bluetooth playback group, including the first speaker. Source notes name the compatible models or families, linking system and firmware requirements. Wi-Fi groups and concurrent Bluetooth source devices are excluded. A stereo pair alone does not establish the maximum when other Bluetooth linking systems are supported. A figure such as 100+ is stored as 100.

1004Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Up to 100 compatible soundcore PartyCast speakers total, including first source-connected unit. Exact PartyCast generation/minimum firmware unpublished. Not TWS pair count 2 used as maximum. General/global group field remains unknown.

Not available

Connectivity

8 of 16 differ

Bluetooth audio playbackiPlays audio streamed over Bluetooth from a phone or other source. Bluetooth used only for setup or app control does not count.

Yes5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026

Yes1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Maker page and Compatibility row: plays audio from Bluetooth devices using A2DP.

Bluetooth versioniVersion of the Bluetooth radio. Some Wi-Fi speakers use Bluetooth only for setup. See Bluetooth audio playback.

5.31Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Current specification Bluetooth 5.3. BLE control does not establish LE Audio.

Not available

Bluetooth codecsiExplicitly supported receive codecs. Bluetooth version alone does not establish codecs.

SBC, AAC5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Exact SBC/AAC answer, no codecs inferred from version.

SBC17Reviewexpertreviews.co.uk/ue/1407679/ultimate-ears-boom-3-review-boom-2-successorRead 23 October 2026Review: connects through Bluetooth using the SBC codec, with no aptX. Only SBC is stored.

Bluetooth profiles

Not available

A2DP1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Compatibility row names the A2DP audio profile. Bluetooth version is not published.

Bluetooth LE AudioiExplicit LE Audio support. Bluetooth LE for app control alone does not qualify.

Not available

Not available

AuracastiExplicit Auracast support. Sending, receiving and speaker-group roles belong in source notes.

Not available

Not available

MultipointiConcurrent Bluetooth source connections. Pairing memory and speaker-to-speaker linking do not qualify.

Yes4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Guide describes another connected source taking over playback. FAQ explicitly establishes two concurrent connections.5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Exact answer supports up to two devices simultaneously.

Yes3Maker product pageweb.archive.org/web/20230314222408/https://www.ultimateears.com/en-us/wireless-speakers/boom-3.htmlRead 23 October 2026Wireless capabilities: pair up to 8 Bluetooth source devices and connect up to two source devices at the same time.

Multipoint source devicesiMaximum concurrently connected Bluetooth source devices, not remembered pairings.

25Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Two concurrent sources, distinct from speaker-group count.

23Maker product pageweb.archive.org/web/20230314222408/https://www.ultimateears.com/en-us/wireless-speakers/boom-3.htmlRead 23 October 2026Connect up to two source devices at the same time. The current US page no longer repeats this line.

Bluetooth range (claimed)iMaker-claimed Bluetooth range to the source device. Test conditions belong in the source note.

30m4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Own specification 30 m/98 ft. Published 30 m used, no more precise feet conversion or obstacle guarantee.

45m1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Mobile range of play up to 45 m.

Wi-FiiBuilt-in Wi-Fi, for audio streaming, setup or control.

Not available

No11Reviewrtings.com/speaker/reviews/ultimate-ears/boom-3Read 23 October 2026Public header says Wi-Fi: No. Bluetooth only.14Reviewtrustedreviews.com/reviews/ultimate-ears-boom-3Read 23 October 2026Bluetooth only, no Wi-Fi.

Wi-Fi standardsiOne 802.11 name per item, such as 802.11ax. A Wi-Fi generation is written as its standard, so Wi-Fi 5 is 802.11ac and Wi-Fi 6 is 802.11ax. Older standards are listed only when a source names them.

Not available

Not available

Network audio protocolsiNamed systems that stream audio to the speaker over the home network. AirPlay is written as AirPlay 2. Chromecast built-in is written as Google Cast. Other names follow the maker, such as Spotify Connect.

Not available

Not available

USB audio inputiPlayback from a connected computer or phone through USB. Charging, service ports and USB flash-drive playback do not qualify.

Not available

No13Reviewm.gsmarena.com/ultimate_ears_boom_3_review-news-35813.phpRead 23 October 2026Review: the only way to input sound is Bluetooth. The microUSB port is for charging.

USB drive playbackiPlayback of audio files on a connected USB storage device.

Not available

No13Reviewm.gsmarena.com/ultimate_ears_boom_3_review-news-35813.phpRead 23 October 2026Review: no input other than Bluetooth. No USB drive playback.

USB audio file formats

Not available

Not available

PortsiPhysical speaker connectors. Record charging, audio input, power output and service roles separately. A shared microphone and guitar jack is one port. A combo jack that takes XLR and 6.35 mm plugs is 6.35 mm audio, and the role names XLR. Optical is a TOSLINK digital audio socket.

Asoundcore Boom 3i

Connector	Count	Role
USB-C	1	Speaker charging input

Source1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026One physical USB-C charging socket, matching maker diagram and photograph. No AUX or power-bank output. Direct USB digital audio and storage playback remain unknown.

BUltimate Ears BOOM 3

Connector	Count	Role
Micro USB	1	Charging input under the rear weather door
Other	1	Charging contacts on the base for the POWER UP dock (sold separately)

Source12Measurementleclaireur.fnac.com/test/27027-test-labo-de-lultimate-ears-boom-3-des-ameliorations-bienvenues-mais-surtout-ergonomiquesRead 23 October 2026Lab confirms a microUSB port behind the rear cover, no mini-jack, and a port on the base for the Power Up dock.13Reviewm.gsmarena.com/ultimate_ears_boom_3_review-news-35813.phpRead 23 October 2026Review: microUSB charging port behind a flap and a metal connector on the base for the Power Up dock. No aux input.

Controls and software

4 of 8 differ

SpeakerphoneiBuilt-in microphone and call support, through a connected phone or a voice assistant's calling. A microphone used only for voice commands does not count. Microphone inputs for karaoke are separate.

No10Reviewrtings.com/speaker/reviews/anker/soundcore-boom-3iRead 8 October 2026Public prose no built-in microphone. This field requires microphone plus calls, so no mic establishes no speakerphone. App amplification uses phone-recorded clips.

No11Reviewrtings.com/speaker/reviews/ultimate-ears/boom-3Read 23 October 2026Public header says Speakerphone: No. Locked numeric cells were not read.

Voice assistantsiVoice assistants explicitly usable through the speaker, such as Amazon Alexa, Google Assistant, Siri or Sonos Voice Control. State whether a connected phone is required.

Not available

Not available

Controls

Power, Bluetooth pairing, Play/pause, Next/previous track, Volume up/down, TWS pairing, PartyCast linking, BassUp on/off, Emergency alarm, Light effects on/off and selection, Factory reset4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Own hardware map/button table identify each control. Reset Bluetooth plus volume up held 4 seconds. Emergency alarm is a safety tone. App Voice Amplifier uses phone messages, not calls or built-in speaker mic.6Owner's manualfccid.io/m/94d3defbf03cdd3e9935981694a5d9c2dd50851ca87205dd80064d1c216d3f37.pdfRead 8 October 2026Original button diagram matches actual maker hardware.

Power button, Bluetooth pairing button, Volume up and down buttons, Magic Button for play, pause and skip, Battery level check (volume up and down together)4Owner's manualsupport.logi.com/hc/en-us/articles/18601577361559-Getting-Started-BOOM-3Read 23 October 2026Power button, Bluetooth pairing button, volume plus and minus, Magic Button (short press play or pause, double press skip), plus and minus together for battery level.

Companion app

soundcore1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Named soundcore app.5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Exact app support. Voice Amplifier records clips in app and is not real-time amplification or calls.

UE | BOOM4Owner's manualsupport.logi.com/hc/en-us/articles/18601577361559-Getting-Started-BOOM-3Read 23 October 2026The guide points to the Ultimate Ears BOOM and MEGABOOM app. The support EQ article calls it UE | BOOM.

App platforms

iOS, Android4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Actual guide App Store and Google Play logos identify iOS/Android.

iOS, Android5Maker product pagesupport.logi.com/hc/en-us/articles/19154583137175-How-To-Use-The-Ultimate-Ears-Boom-AppRead 23 October 2026Download the BOOM app from the Google Play store or the App Store. The article lists BOOM 3 as supported.

User firmware updates

Yes1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Explicit app firmware updates. Maker recommends latest firmware for enhanced sound without naming exact version.4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Explicit app notification/update procedure.

Yes5Maker product pagesupport.logi.com/hc/en-us/articles/19154583137175-How-To-Use-The-Ultimate-Ears-Boom-AppRead 23 October 2026Speaker Updates: a tap in the app updates the speaker.13Reviewm.gsmarena.com/ultimate_ears_boom_3_review-news-35813.phpRead 23 October 2026Review: the app can update the speaker software.

Built-in lightingiDecorative or ambient lighting. Status, battery, connection and microphone indicator LEDs alone do not qualify.

Yes1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Decorative RGB radiator light show, separate from status LEDs.4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Six dynamic beat-linked and four static ambient effects on both sides.5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Selectable decorative side effects, controlled by dedicated button and app. Status breathing is separate.7Press releaseanker-in.com/posts/soundcore-launches-boom-3i-outdoor-speaker-with-floatable-design-and-enhanced-durabilityRead 8 October 2026Programmable LED light show on left/right radiators.

Not available

Lighting modes

Neon Night, Spring Break, Romantic Stroll, Laid Back, Color Loop, Energy8Reviewsoundguys.com/soundcore-boom-3i-review-the-best-waterproof-bluetooth-speaker-139777Read 8 October 2026Actual app screenshot fully shows Neon Night, Spring Break, Romantic Stroll, Laid Back, Color Loop and Energy. Verified names, not complete inventory. Guide says 6 dynamic plus 4 ambient. Horizontally clipped names not guessed.9Reviewsoundguys.com/wp-content/uploads/2025/06/Boom-3i-app_5-scaled.jpegRead 8 October 2026Direct public actual-review screenshot visually read. Six fully readable names retained. Rightmost clipped names not guessed.

Not available

Smart home

None of 3 known

Matter controlleriCan add and control Matter devices. Being a Matter device alone does not count.

Not available

Not available

Thread border routeriConnects Thread smart home devices to the home network.

Not available

Not available

Zigbee hubiA built-in Zigbee radio that controls Zigbee smart home devices.

Not available

Not available

Battery and charging

7 of 17 differ

Built-in battery

Yes4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Built-in rechargeable battery, charging status and app battery indicator.

Yes1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026

Playback time (claimed)iMaximum maker-claimed music playback on one charge in normal playback mode. Battery extension or reduced-bass boost modes belong in battery_life_boost_h. Record volume and lighting conditions in the source note.

16h5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Maker lab up to 16 h at room temperature, factory defaults, 50% volume, lights off, BassUp off and default EQ. Varies with volume, source and environment. No boost-mode total.

15h1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Up to 15 hours on a single charge. Varies with use, settings and environment. No volume stated.

Playback with battery extension (claimed)iTotal claimed runtime with the named battery extension mode enabled. Store the total, not only the extra hours. Keep sound and lighting restrictions in the source note.

Not available

Not available

Battery energyiPublished battery pack energy. Do not calculate from an assumed voltage.

Not available

Not available

Battery capacityiPublished pack capacity at the voltage in battery_voltage_v. Do not substitute power-bank output capacity. A figure written per cell, such as 5000mAh*2, is not a pack capacity unless the maker states the pack figure.

2,400mAh4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Literal 2400 mAh at 10.95 V pack, not power-bank output. No Wh calculation.

Not available

Nominal battery voltage

10.95V4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Published 10.95 V alongside pack capacity, not guessed from cell count.

Not available

Battery chemistry

Lithium-ion6Owner's manualfccid.io/m/94d3defbf03cdd3e9935981694a5d9c2dd50851ca87205dd80064d1c216d3f37.pdfRead 8 October 2026Original QSG Japanese safety text explicitly identifies this built-in lithium-ion battery as recyclable and prints Li-ion. Supports chemistry only, no extra energy/capacity inference.

Lithium-ion1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Embedded spec table: Rechargeable Lithium-Ion Battery. Capacity and voltage are not published.

User-replaceable batteryiBattery that the maker documents as replaceable by the user. Service replacement does not qualify.

No5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Explicit No to battery replacement.

Not available

Full charge timeiTime from discharged to full under the maker conditions. Adapter rating and simultaneous use belong in source notes.

4h4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Guide less than 4 h, current FAQ about 4 h on 15 W 5 V/3 A. Retained approximate 4 h maker full-charge claim. Simultaneous use unspecified.5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026About 4 h full charge with 15 W 5 V/3 A recommendation. Adapter model and simultaneous playback not stated.

Not available

Quick charge duration

Not available

Not available

Playback after quick chargeiClaimed music playback after quick_charge_min of charging. Source conditions apply.

Not available

Not available

Charging input ratingiPublished speaker input voltage and current. An adapter rating alone does not establish device input.

5 V DC at 3 A4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Own device Power Input 5 V DC 3 A. Applicable Anker A2337 adapter outputs are separate. Charger-output recommendation 0.05 W to 15 W does not independently establish a maximum device charging wattage or PD support.6Owner's manualfccid.io/m/94d3defbf03cdd3e9935981694a5d9c2dd50851ca87205dd80064d1c216d3f37.pdfRead 8 October 2026Original QSG repeats device 5 V DC 3 A.

Not available

Max charging inputiPublished maximum charging input. USB audio power requirements and adapter output are separate.

Not available

Not available

USB Power Delivery charging

Not available

Not available

Charges other devices

No2Maker product pagesoundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Exact Charge Out row explicitly crossed out.

Not available

Max power-bank outputiPublished power delivered by the speaker to another device. Output voltage and current belong in the source note.

Not available

Not available

Wireless chargingiThe speaker battery can be charged wirelessly. Wireless power output to another device is separate.

Not available

Not available

Durability

3 of 5 differ

Dust and water ratingiExact published IP rating. Keep separate ratings, such as IP68 and IP69, as separate entries.

IP681Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026IP68 with port cover fully closed. Launch specifies 1.5 m water immersion for 30 minutes, separate from drop test.

IP671Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026IP67, can be submerged for up to 30 minutes.

Floats

Yes1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Explicit upright sound-forward floating playback, including moving water.

Yes1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026

Drop resistanceiExplicit maker claim or defined drop test. Do not infer from rugged wording.

Yes1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Explicit drop-tested from 3.28 ft or 1 m.

Yes1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Page says the speaker passed more than 25 durability tests including multiple drop tests. Archived maker page footnote lists BOOM 3 as drop proof. No drop height is stated.

Drop test heightiMaker-published tested height. Surface and conditions belong in source notes.

1m1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Published 1 m. Parent maker announcement identifies concrete surface.7Press releaseanker-in.com/posts/soundcore-launches-boom-3i-outdoor-speaker-with-floatable-design-and-enhanced-durabilityRead 8 October 2026Explicit up to 1 m onto concrete. Water immersion test separate.

Not available

Carry featuresiPublished handles, straps, carabiners or wheels.

Detachable adjustable shoulder strap1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Detachable adjustable strap. Optional Adventure Set handle/case excluded.7Press releaseanker-in.com/posts/soundcore-launches-boom-3i-outdoor-speaker-with-floatable-design-and-enhanced-durabilityRead 8 October 2026Standard strap package is distinct from future magnetic case/carry-handle set.

Fabric loop13Reviewm.gsmarena.com/ultimate_ears_boom_3_review-news-35813.phpRead 23 October 2026Fabric loop on the back.14Reviewtrustedreviews.com/reviews/ultimate-ears-boom-3Read 23 October 2026Small fabric loop on the back for a carabiner. No carabiner included.

Measured

3 of 6 differ

Playback time (measured)iReviewer-measured playback per charge. Volume, lighting, sound mode, firmware and connection belong in the source note.

15h10Reviewrtings.com/speaker/reviews/anker/soundcore-boom-3iRead 8 October 2026Public review repeatedly reports about 15 h continuous playback with lights off. Blue test sample, same marketed D5100 hardware as selected Black, no documented material color difference. Sample commercial SKU, firmware build, transport/codec, EQ and BassUp state not public. Linked public method specifies full charge to depletion, 80 dB SPL at 1 m and latest available firmware at test. No locked decimal or charge/SPL/latency result read.11Measurementrtings.com/speaker/tests/active-features/batteryRead 8 October 2026Public linked method: latest available firmware, full charge, looped track at 80 dB SPL at 1 m to depletion. Actual review establishes lights off. Exact firmware, codec, EQ, BassUp and host remain unpublished. 15 h is rounded public prose, not a locked-table reconstruction.

15.45h12Measurementleclaireur.fnac.com/test/27027-test-labo-de-lultimate-ears-boom-3-des-ameliorations-bienvenues-mais-surtout-ergonomiquesRead 23 October 2026Labo Fnac average of 15 h 27 min (15.45 h). Volume and source are not published on the page.

Max sound pressure (measured)iReviewer-measured maximum SPL. Distance, test method and power source belong in source notes.

Not available

87dB12Measurementleclaireur.fnac.com/test/27027-test-labo-de-lultimate-ears-boom-3-des-ameliorations-bienvenues-mais-surtout-ergonomiquesRead 23 October 2026Microphone at 50 cm. Best level 87 dB at 10 percent distortion, measured at 60, 80 and 100 Hz. The 87 dB is the 100 Hz result. Battery power.

Low-frequency extension (measured)iReviewer-measured low-frequency limit. Threshold and test method belong in source notes.

Not available

Not available

High-frequency extension (measured)iReviewer-measured high-frequency limit. Threshold and test method belong in source notes.

Not available

Not available

Audio latency (measured)iReviewer-measured source-to-speaker latency. Source device, app, codec, firmware and connection belong in source notes. App compensation may affect results.

Asoundcore Boom 3i

Not available

BUltimate Ears BOOM 3

Connection	Latency (ms)
Bluetooth	141

Source12Measurementleclaireur.fnac.com/test/27027-test-labo-de-lultimate-ears-boom-3-des-ameliorations-bienvenues-mais-surtout-ergonomiquesRead 23 October 2026Bluetooth latency of 141 ms. Source device, codec and app are not stated.

Full charge time (measured)iReviewer-measured time from empty to full. Power adapter and method belong in the source note.

Not available

Not available

Dimensions and weight

3 of 3 differ

DimensionsiSpeaker body width, height and depth on explicitly identified axes. Unlabeled tuples do not establish axis meanings. Handle, strap and orientation conditions belong in the source note.

Not available

Width73Height184Depth73mm(2.9 × 7.2 × 2.9 in)1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Embedded Specs and Compatibility: height 184 mm, width 73 mm. The archived maker page calls 73 mm the diameter, so width and depth are both 73 mm.

WeightiSpeaker mass including its battery. Excludes packaging, charger and removable carry accessories unless the source states otherwise.

780g(1.7 lb)2Maker product pagesoundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Current exact maker claim 780 g, also repeated as 27.5 oz and approximately 1.7 lb. SG header says 1080 g but does not establish measured/accessory scope. Explicit current maker claim retained. Cause and separate strap mass are unknown. Body dimensions are unlabeled 8.27 x 3.35 x 3.09 in, repeated 210 x 85 x 78.5 mm in an unlabeled diagram. No width/height/depth mapping is invented. The US product variant also carries weight metadata 1144 without an explicit bare-speaker/accessory scope. It is not substituted for the public speaker specification.8Reviewsoundguys.com/soundcore-boom-3i-review-the-best-waterproof-bluetooth-speaker-139777Read 8 October 2026Header 1080 g conflicts maker 780 g. Measurement/accessory scope and cause not established. Explicit current maker claim retained.

608g(1.3 lb)1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Embedded Specs and Compatibility: 608 g (21.45 oz).

Body materials

Plastic, Rubber8Reviewsoundguys.com/soundcore-boom-3i-review-the-best-waterproof-bluetooth-speaker-139777Read 8 October 2026Actual reviewer describes tough plastic shell and chunky rubber bumpers. No exact resin or metal grille material invented.

Two-tone performance fabric, Rubberised plastic14Reviewtrustedreviews.com/reviews/ultimate-ears-boom-3Read 23 October 2026Top and bottom are rubberised plastic and the main body is a woven fabric.

Certifications

None of 1 known

FCC IDs

Not available

Not available

Other certifications

Not available

Not available

In the box

1 of 1 differ

In the box

soundcore Boom 3i speaker, USB-C to USB-C cable, Shoulder strap, Quick Start Guide5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Full inventory speaker, USB-C C-to-C cable, strap and Quick Start Guide. No adapter, magnetic case or hard handle.

BOOM 3 speaker, Micro-USB cable, Quick Start Guide1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026Package contents: BOOM 3 Speaker, Micro-USB Cable, Quick Start Guide.

Links

Not compared

Product page

us.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speaker1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Explicit selected US URL. Ordinary requests to www redirect this local region to Nordic home, so public US storefront is used.

www.ultimateears.com/en-us/shop/p/boom-3.984-0013501Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026

Spec sheet

Not available

www.logitech.com/en-us/products/speakers/bluetooth-speakers/boom-3.html2Maker product pagelogitech.com/en-us/products/speakers/bluetooth-speakers/boom-3.htmlRead 23 October 2026Maker Specs and Details tab: part number, dimensions, weight and the technical specification text.

Manual

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdf4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000026832/en_US/000026832.pdfRead 8 October 2026Official support index explicitly links English User Guide D5100 to this original seven-page PDF. Entire guide read and visually checked. Original QSG independently matches hardware/buttons.

support.logi.com/hc/en-us/articles/18601577361559-Getting-Started-BOOM-34Owner's manualsupport.logi.com/hc/en-us/articles/18601577361559-Getting-Started-BOOM-3Read 23 October 2026Maker Getting Started guide for BOOM 3. No PDF manual was found.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1.5years6Owner's manualfccid.io/m/94d3defbf03cdd3e9935981694a5d9c2dd50851ca87205dd80064d1c216d3f37.pdfRead 8 October 2026English original QSG p11 explicitly 18-month limited warranty, converted 1.5 years. Support list includes US. Statutory rights/optional service separate.

2years1Maker product pageultimateears.com/en-us/shop/p/boom-3.984-001350Read 23 October 2026

Both are also in the API. Back to all wireless speakers.