Wireless speakers / Compare

JBL Go 4 vs Ultimate Ears WONDERBOOM 4

A

Product A: JBL

Go 4

46 of 96 known

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B

Product B: Ultimate Ears

WONDERBOOM 4

48 of 96 known

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All 96 fields

Every value links to where we found it.

Only differences

AJBL Go 4

BUltimate Ears WONDERBOOM 4

General

6 of 8 differ

Series

Not available

WONDERBOOM1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

JBLGO4WHTAM1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Item number on this exact page. Colour-specific retail SKU is one proven identifier, not an exhaustive regional SKU list.

SR01922Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026

GTIN / EAN

Not available

Not available

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

8 January 20245Press released21buns5ku92am.cloudfront.net/68766/documents/53768-1704707414-CES%202024%20JBL%20Portables%20Press%20Release%20EMEA%20Final%20v08.01-953b83.pdfRead 8 October 2026CES launch dated January 8, 2024.

26 June 20244Press releasenews.logitech.com/press-releases/news-details/2024/The-Rugged-Ultimate-Ears-EVERBOOM-Superior-Sound-That-Is-Waterproof-Dustproof-and-Floatable/default.aspxRead 8 October 2026

Status

Available1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker offers this model for purchase on the accessed date.

Available1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

JBL Go 39Reviewsoundguys.com/jbl-go-4-review-117126Read 23 October 2026SoundGuys calls the JBL Go 4 a worthy successor to the Go 3.

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.

JBL Go 510Reviewtechradar.com/audio/wireless-bluetooth-speakers/jbl-go-5-reviewRead 23 October 2026TechRadar's review says the Go 5 was released about two years after its predecessor, the JBL Go 4.

Not available

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

Not available

$99.994Press releasenews.logitech.com/press-releases/news-details/2024/The-Rugged-Ultimate-Ears-EVERBOOM-Superior-Sound-That-Is-Waterproof-Dustproof-and-Floatable/default.aspxRead 8 October 2026US launch MSRP $99.99 before tax.

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.

€49.995Press released21buns5ku92am.cloudfront.net/68766/documents/53768-1704707414-CES%202024%20JBL%20Portables%20Press%20Release%20EMEA%20Final%20v08.01-953b83.pdfRead 8 October 2026Published EMEA consumer launch price in euros. Separate from current discounts and USD retail prices.

Not available

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

Not available

US1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

ColoursiThe maker's own colour names

Not available

Active Black, Joyous Bright, Hyper Pink, Cobalt Blue, Sand1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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 pagejbl.com/GO-4.htmlRead 8 October 2026Maker explicitly identifies the speaker as portable or ultra-portable.

Portable1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Audio

12 of 18 differ

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

Mono4Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly calls one speaker mono. Wireless stereo requires a second matching speaker.

Stereo1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026Maker describes stereo sound from one physical speaker. Two-speaker Double Up stereo separates left and right between units.

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.

AJBL Go 4

Driver type	Count	Diameter (mm)	Rated power per driver (W)
Driver	1	45	4.2

Source2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications states one 45 mm powered transducer and its RMS output. Passive radiator is separate.

BUltimate Ears WONDERBOOM 4

Driver type	Count
Active audio driver	2

Source1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026Maker embedded technical specs explicitly list two active drivers and two passive radiators. Diameter omitted because manufacturer support says 34 mm while product page says 40 mm.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

Not available

21Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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.

4.2W2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications explicitly output power 4.2 W RMS.

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.

Not available

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.

90Hz2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications claimed lower limit. Tolerance not published. Not measured bass extension.

80Hz2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026Speaker Specifications: 80 Hz to 16 kHz at -3 dB. Not a measured reviewer result.

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.

20kHz2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications upper limit 20 kHz. Tolerance not published.

16kHz2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026Speaker Specifications: 80 Hz to 16 kHz at -3 dB.

Signal-to-noise ratio (claimed)

Not available

86dB2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026Speaker Specifications: 86 dB unweighted.

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

Yes1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026JBL Portable app provides adjustable sound controls. Review separately identifies the number of EQ bands.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/wonderboom-4Read 8 October 2026Public verdict: no custom EQ. Outdoor and Podcast presets are stored separately in sound_modes.

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

54Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review describes 5-band customizable EQ in JBL Portable. EQ options depend on speaker firmware and app version. Group playback can reset custom EQ.

Not available

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.

Playtime Boost2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Named maker battery extension mode Playtime Boost. It changes sound and is separate from normal playback.

Standard, Outdoor Boost, Podcast1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Yes1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Two speakers of the same model form a stereo pair. Cross-model grouping plays the same programme and does not establish stereo pairing.

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Auracast1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker names Auracast. No backward compatibility with the other JBL linking generation is inferred.

Double Up1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

21Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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.

Not available

Not available

Connectivity

6 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.

Yes2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

5.32Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Literal Bluetooth version from Technical Specifications. No codec inferred.

5.22Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026

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

Not available

Not available

Bluetooth profiles

A2DP 1.4, AVRCP 1.62Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Literal profile versions from Technical Specifications.

A2DP1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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.

Yes1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker explicitly supports JBL Auracast speaker grouping and same-model stereo pairing. Source-to-speaker universal Auracast receiver role not inferred.

Not available

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

Yes1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Features explicitly says Multi-Point Connection Yes. Concurrent source count is separate.4Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly documents concurrent Bluetooth source connections.

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

24Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly says two sources simultaneously.

21Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

40m1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

No5Reviewrtings.com/speaker/reviews/ultimate-ears/wonderboom-4Read 8 October 2026Public Wi-Fi row explicitly says No.

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.

No4Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly says Bluetooth is the only audio connection, no wired audio input.

No2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026USB-C cable is explicitly for charging only.

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

Not available

Not available

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.

AJBL Go 4

Connector	Count	Role
USB-C	1	Charging input

Source3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwc984891f/pdfs/PA_JBL_GO%204_QSG_Global_SOP.pdfRead 8 October 2026QSG charging diagram confirms one USB-C charging connector. No audio-input role assumed for charging connector.

BUltimate Ears WONDERBOOM 4

Connector	Count	Role
USB-C	1	Charging input only

Source2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026

Controls and software

3 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.

No4Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly states no microphone for phone calls.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/wonderboom-4Read 8 October 2026Public Voice Assistant verdict explicitly says no built-in microphone.

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, Auracast pairing, Play/pause, Volume up/down4Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review describes power, Bluetooth and Auracast controls and raised playback controls. Flip 7 and Charge 6 review action table identifies volume and play/pause buttons. Buttons are separate from app controls.8Reviewsoundguys.com/jbl-clip-5-vs-jbl-go-4-which-bluetooth-speaker-is-the-best-118579Read 8 October 2026How do you control section describes raised playback controls plus recessed power, Bluetooth and Auracast buttons. Exact generation comparison.

Power, Bluetooth pairing, Volume up/down, Play/pause, Next track, Outdoor Boost/Podcast mode, Double Up, Battery level3Owner's manualsupport.logi.com/hc/en-us/articles/17139116395031-Getting-Started-UE-WONDERBOOM-4Read 8 October 2026Manual Power, Control Music, Explore our EQ Modes, Double Up and Check Battery Level sections. Double Up works with WONDERBOOM 3 or 4, excluding other BOOM families.

Companion app

JBL Portable1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker explicitly names JBL Portable.

Not available

App platforms

Not available

Not available

User firmware updates

Yes3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwc984891f/pdfs/PA_JBL_GO%204_QSG_Global_SOP.pdfRead 8 October 2026APP instruction says use JBL Portable for speaker configuration and software upgrade.

Not available

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

Not available

Not available

Lighting modes

Not available

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

6 of 17 differ

Built-in battery

Yes2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications explicitly documents the built-in lithium-ion polymer battery.

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 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.

7h2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications up to 7 h, dependent on volume level and audio content. Normal mode. Playtime Boost runtime is separate.

14h1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026Up to 14 hours between charges. Actual runtime varies with use, settings and environmental conditions. Volume not 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.

9h2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Total up to 9 h with Playtime Boost. Normal 7 h plus up to 2 h. Reduced bass and changed EQ documented by SoundGuys. Volume and content still affect runtime.

Not available

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

3.23Wh2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Literal published pack energy. No cell voltage assumed.

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.

850mAh2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Literal published capacity at the stated nominal pack voltage. Not power-bank output capacity.

2,100mAh2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026Built-in Li-ion rechargeable battery 2100 mAh. Pack voltage and energy are not published.

Nominal battery voltage

3.8V2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Literal nominal pack voltage published alongside Wh and mAh.

Not available

Battery chemistry

Lithium-ion polymer2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications identifies lithium-ion polymer.

Lithium-ion1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

Not available

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

3h2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications full charge time. 5 V / 1 A input condition.

3h2Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026About three hours from empty to full with a 10 W or higher charger. Adapter recommendation 5 V/2 A is not treated as speaker input.

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.

Not available

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

Not available

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

4 of 5 differ

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

IP671Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Exact published IP rating. QSG specifies 1 m immersion for 30 minutes.

IP671Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Floats

Not available

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

Yes1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

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

Not available

1.5m1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026Maker publishes a 1.5 m drop test, also described as five feet. Test surface not specified.

Carry featuresiPublished handles, straps, carabiners or wheels.

Integrated carry loop1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker describes the integrated or supplied carry accessory.

Bungee loop1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Measured

1 of 6 differ

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

10.9h6Measurementtechgearlab.com/reviews/audio/bluetooth-speaker/jbl-go-4Read 8 October 2026Battery paragraph explicitly 10 h 54 min. Review updated May 29, 2026. General method fully charges battery and loops pink noise at 75% volume until shutdown. Firmware, EQ and Playtime Boost state are not specified for the individual run. Pink noise is different from the maker music-playback claim.7Measurementtechgearlab.com/topics/audio/best-bluetooth-speaker/how-we-testRead 8 October 2026Battery method: 100% charge, 75% volume, loop pink noise until shutdown, record time to minute. Individual speaker sound mode and firmware not stated.

13h5Reviewrtings.com/speaker/reviews/ultimate-ears/wonderboom-4Read 8 October 2026Public review Outdoors verdict and Music pros report 13 hours battery life for the tested WONDERBOOM 4. Test bench 1.0.1. Numeric member-only tables were not read. Volume, EQ mode, codec, firmware and source device are not stated in the public prose.

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

Not available

Not available

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.

Not available

Not available

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.

Width94.3Height75.7Depth42.2mm(3.7 × 3 × 1.7 in)2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Technical Specifications explicitly labels W x H x D. Literal mm body dimensions. Packaging dimensions excluded.

Not available

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

Not available

420g(14.8 oz)1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Body materials

Post-consumer recycled plastic, Recycled fabric grille5Press released21buns5ku92am.cloudfront.net/68766/documents/53768-1704707414-CES%202024%20JBL%20Portables%20Press%20Release%20EMEA%20Final%20v08.01-953b83.pdfRead 8 October 202670% PCR plastic for Clip 5 and 80% for Go 4. Both have 100% PCR fabric grilles. Percentage describes relevant material content, not total speaker mass.

Post-consumer recycled plastic, Recycled polyester fabric4Press releasenews.logitech.com/press-releases/news-details/2024/The-Rugged-Ultimate-Ears-EVERBOOM-Superior-Sound-That-Is-Waterproof-Dustproof-and-Floatable/default.aspxRead 8 October 2026WONDERBOOM 4 plastic components minimum 31% PCR by weight. Fabric is 100% PCR polyester. Packaging excluded.

Certifications

None of 1 known

FCC IDs

Not available

Not available

Other certifications

Not available

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In the box

1 of 1 differ

In the box

JBL Go 4, USB Type-C cable, Quick start guide, Warranty card and safety sheet2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Maker box list. USB Type-C cable included. No power adapter in maker box inventory.

WONDERBOOM 4, Bungee loop (attached), Quick start guide (printed inside box)1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026US product page embedded Package Contents. No USB-C cable included. Support text generically says cable included and conflicts with this reference package.

Links

Not compared

Product page

www.jbl.com/GO-4.html1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Exact model product page. Hardware details refer to this generation, not a Wi-Fi sibling or earlier model. Codec and passive-radiator claims conflict between reliable secondary sources, so those fields are omitted.

www.ultimateears.com/en-us/shop/p/wonderboom-41Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026

Spec sheet

www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdf2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026Maker English spec sheet, both pages opened. Technical Specifications and Features and Benefits checked.

support.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-42Maker product pagesupport.logi.com/hc/en-us/articles/17139136148375-Specification-WONDERBOOM-4Read 8 October 2026

Manual

www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwc984891f/pdfs/PA_JBL_GO%204_QSG_Global_SOP.pdf3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwc984891f/pdfs/PA_JBL_GO%204_QSG_Global_SOP.pdfRead 8 October 2026Exact generation maker Quick Start Guide. Downloaded and text extracted locally after web reader failed. English TECH SPEC page 9. QSG net mass 0.192 kg conflicts with datasheet 0.19 kg. Neither calls the value approximate, weight omitted.

support.logi.com/hc/en-us/articles/17139116395031-Getting-Started-UE-WONDERBOOM-43Owner's manualsupport.logi.com/hc/en-us/articles/17139116395031-Getting-Started-UE-WONDERBOOM-4Read 8 October 2026Maker online getting-started manual for exact WONDERBOOM 4.

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.

Not available

2years1Maker product pageultimateears.com/en-us/shop/p/wonderboom-4Read 8 October 2026US page embedded specs and compatibility: 2-Year Limited Hardware Warranty.

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