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soundcore Boom 3i

soundcorePortable wireless speaker

Boom 3i

Released 18 June 2025.7Press releaseanker-in.com/posts/soundcore-launches-boom-3i-outdoor-speaker-with-floatable-design-and-enhanced-durabilityRead 8 October 2026US announcement explicitly says Black now available and starting today June 18. SG generic header says June 17. Explicit maker US Black launch used, not unbridged earlier review date. Last checked 21 October 2026.

Rated audio power
Not available
Playback time (claimed)
16h
Dust and water rating
IP68
Weight
780g

53 of 96 fields known.

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At a glance

Ports

  • USB-C

All specs

SourceCalculated

General

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.
Model numbers
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.
GTIN / EAN
Not available
Announced
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.
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.
Predecessor
Not available
Successor
Not available
Launch price (US)
$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.
Launch price (EU)
Not available
Markets
US1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Current US selected offer and USD pricing.
Colours
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.
Speaker type
Portable1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Explicit portable rugged outdoor speaker.

Audio

Audio channels
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.
Audio drivers
Driver typeCount
Woofer1
Tweeter1
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.
Passive radiators
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.
Rated audio power
Not available
Rated audio power on mains
Not available
Audio output power (unspecified rating)
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.
Peak audio power
Not available
Frequency response lower limit (claimed)
Not available
Frequency response upper limit (claimed)
Not available
Signal-to-noise ratio (claimed)
Not available
Adjustable equalizer
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.
Equalizer bands
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.
Automatic sound adjustment
Not available
Sound modes
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.
Wireless stereo pairing
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.
Speaker link protocols
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.
Max linked speakers
Not available
Max Bluetooth group speakers
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.

Connectivity

Bluetooth audio playback
Yes5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026
Bluetooth version
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.
Bluetooth codecs
SBC, AAC5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Exact SBC/AAC answer, no codecs inferred from version.
Bluetooth profiles
Not available
Bluetooth LE Audio
Not available
Auracast
Not available
Multipoint
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.
Multipoint source devices
25Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Two concurrent sources, distinct from speaker-group count.
Bluetooth range (claimed)
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.
Wi-Fi
Not available
Wi-Fi standards
Not available
Network audio protocols
Not available
USB audio input
Not available
USB drive playback
Not available
USB audio file formats
Not available
Ports
ConnectorCountRole
USB-C1Speaker 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.

Controls and software

Speakerphone
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.
Voice assistants
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.
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.
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.
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.
Built-in lighting
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.
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.

Smart home

We could not find any of these 3 fields. Show them
Matter controller
Not available
Thread border router
Not available
Zigbee hub
Not available

Battery and charging

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.
Playback time (claimed)
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.
Playback with battery extension (claimed)
Not available
Battery energy
Not available
Battery capacity
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.
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.
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.
User-replaceable battery
No5Maker product pageservice.soundcore.com/article-description/soundcore-Boom-3i-FAQRead 8 October 2026Explicit No to battery replacement.
Full charge time
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.
Quick charge duration
Not available
Playback after quick charge
Not available
Charging input rating
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.
Max charging input
Not available
USB Power Delivery charging
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.
Max power-bank output
Not available
Wireless charging
Not available

Durability

Dust and water rating
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.
Floats
Yes1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Explicit upright sound-forward floating playback, including moving water.
Drop resistance
Yes1Maker product pageus.soundcore.com/products/d5100-boom-3i-waterproof-bluetooth-speakerRead 8 October 2026Explicit drop-tested from 3.28 ft or 1 m.
Drop test height
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.
Carry features
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.

Measured

Playback time (measured)
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.
Max sound pressure (measured)
Not available
Low-frequency extension (measured)
Not available
High-frequency extension (measured)
Not available
Audio latency (measured)
Not available
Full charge time (measured)
Not available

Dimensions and weight

Dimensions
Not available
Weight
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.
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.

Certifications

We could not find any of these 2 fields. Show them
FCC IDs
Not available
Other certifications
Not available

In the box

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.

Warranty

Manufacturer warranty (source market)
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.

Compare with

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Variants

Each variant lists only what differs from the specs above.

Model numberMarketsColours
D5100010USAdventurer Black

Sources

We read 11 sources for this wireless speaker. The numbers match the markers in the sheet.

  1. Read 8 October 2026Backs 22 fields
  2. Read 8 October 2026Backs 2 fields
  3. Read 8 October 2026Backs 4 fields
  4. Read 8 October 2026Backs 18 fields
  5. Read 8 October 2026Backs 11 fields
  6. Read 8 October 2026Backs 6 fields
  7. Read 8 October 2026Backs 8 fields
  8. Read 8 October 2026Backs 5 fields
  9. Read 8 October 2026Backs 1 field
  10. Read 8 October 2026Backs 4 fields
  11. Read 8 October 2026Backs 1 field

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