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JBL Go 4 vs Sony ULT FIELD 1

Product A: JBL

Go 4

46 of 96 known
Change JBL Go 4

Compare the Sony ULT FIELD 1 with

Product B: Sony

ULT FIELD 1

49 of 96 known
Change Sony ULT FIELD 1

Compare the JBL Go 4 with

43 of 87 fields differ

Download CSVDownload JSON
  • 16 different values
  • 27 known for one only
  • 13 the same
  • 31 missing for both

Biggest differences

Each bar uses the scale of all 82 wireless speakers.

  1. Playback time (claimed)A: 7hB: 12hSony is 5 h higher.
  2. Charging timeLower is betterA: 3hB: 5hJBL is 2 h lower.

Size, drawn to scale

Front and side.

All 96 fields

Every value links to where we found it.

AJBL Go 4
BSony ULT FIELD 1

General

6 of 8 differ
Series
Not available
ULT POWER SOUND1Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 8 October 2026
Model numbers
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.
SRS-ULT10, YY7862E4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
GTIN / EAN
Not available
Not available
Announced
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.
11 April 20241Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 8 October 2026
Status
Available1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker offers this model for purchase on the accessed date.
Available2Maker product pageelectronics.sony.com/audio/speakers/wireless-speakers/p/srsult10-bRead 8 October 2026
Predecessor
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
Successor
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)
Not available
$1291Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 8 October 2026US suggested retail price at launch, excluding tax.
Launch price (EU)
€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
Markets
Not available
US, CA1Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 8 October 2026
Colours
Not available
Black, Forest Gray, Off White, Orange1Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 8 October 2026
Speaker type
Portable1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker explicitly identifies the speaker as portable or ultra-portable.
Portable2Maker product pageelectronics.sony.com/audio/speakers/wireless-speakers/p/srsult10-bRead 8 October 2026

Audio

8 of 18 differ
Audio channels
Mono4Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly calls one speaker mono. Wireless stereo requires a second matching speaker.
Mono6Reviewrtings.com/speaker/reviews/sony/ult-field-1Read 8 October 2026
Audio drivers
AJBL Go 4
Driver typeCountDiameter (mm)Rated power per driver (W)
Driver1454.2
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.
BSony ULT FIELD 1
Driver typeCountDiameter (mm)
Woofer1Not available
Tweeter116
Source4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026Specifications. Woofer rectangular dimensions have no axis labels and are omitted. Tweeter diameters are approximate.
Passive radiators
Not available
25Reviewsoundguys.com/sony-ult-field-1-review-113404Read 8 October 2026
Rated audio power
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 mains
Not available
Not available
Audio output power (unspecified rating)
Not available
Not available
Peak audio power
Not available
Not available
Frequency response lower limit (claimed)
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.
Not available
Frequency response upper limit (claimed)
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.
Not available
Signal-to-noise ratio (claimed)
Not available
Not available
Adjustable equalizer
Yes1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026JBL Portable app provides adjustable sound controls. Review separately identifies the number of EQ bands.
Yes4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
Equalizer bands
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.
33Maker product pagesony.com/electronics/support/speakers-wireless-speakers/srs-ult10/specificationsRead 8 October 2026
Automatic sound adjustment
Not available
Not available
Sound modes
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.
ULT POWER SOUND, Custom EQ, STAMINA4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026STAMINA disables sound effects including ULT. No claimed STAMINA runtime is stated.
Wireless stereo pairing
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.
Yes4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
Speaker link protocols
Auracast1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker names Auracast. No backward compatibility with the other JBL linking generation is inferred.
Not available
Max linked speakers
Not available
Not available
Max Bluetooth group speakers
Not available
Not available

Connectivity

7 of 16 differ
Bluetooth audio playback
Yes2Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw9308649c/pdfs/JBL%20Go%204_%20Specsheet_EN.pdfRead 8 October 2026
Yes4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
Bluetooth version
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.
5.34Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026About the BLUETOOTH wireless technology. FIELD 3 states version 5.2, despite the SoundGuys review stating 5.3.
Bluetooth codecs
Not available
SBC, AAC4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
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.
A2DP, AVRCP, HFP, HSP, SPP3Maker product pagesony.com/electronics/support/speakers-wireless-speakers/srs-ult10/specificationsRead 8 October 2026
Bluetooth LE Audio
Not available
Not available
Auracast
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
Multipoint
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.
Yes6Reviewrtings.com/speaker/reviews/sony/ult-field-1Read 8 October 2026Public verdict explicitly reports Bluetooth multi-device connectivity. Concurrent device count is not stated publicly.
Multipoint source devices
24Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly says two sources simultaneously.
Not available
Bluetooth range (claimed)
Not available
30m4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026About 30 m. Obstacles and radio interference reduce this distance.
Wi-Fi
Not available
No6Reviewrtings.com/speaker/reviews/sony/ult-field-1Read 8 October 2026
Wi-Fi standards
Not available
Not available
Network audio protocols
Not available
Not available
USB audio input
No4Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly says Bluetooth is the only audio connection, no wired audio input.
No4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026Parts and controls explicitly state that USB-C is not compatible with music playback.
USB drive playback
Not available
No4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026The only USB port is documented as incompatible with music playback.
USB audio file formats
Not available
Not available
Ports
AJBL Go 4
ConnectorCountRole
USB-C1Charging 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.
BSony ULT FIELD 1
ConnectorCountRole
USB-C1Charging input
Source4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026

Controls and software

5 of 8 differ
Speakerphone
No4Reviewsoundguys.com/jbl-go-4-review-117126Read 8 October 2026Review explicitly states no microphone for phone calls.
Yes4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
Voice assistants
Not available
Google Assistant, Siri4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026Uses the connected Android phone Google app or iPhone Siri. Button activation, not a standalone voice assistant.
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, Play/pause, Volume, ULT sound mode, Answer/end call, Phone voice assistant4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
Companion app
JBL Portable1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker explicitly names JBL Portable.
Sony | Sound Connect4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026Sound Connect support since April 2025. Update through Sony | Music Center first.
App platforms
Not available
Android, iOS4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
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.
Yes4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
Built-in lighting
Not available
Not available
Lighting modes
Not available
Not available

Smart home

None of 3 known
Matter controller
Not available
Not available
Thread border router
Not available
Not available
Zigbee hub
Not available
Not available

Battery and charging

8 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.
Yes4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
Playback time (claimed)
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.
12h4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026Charging the speaker, pp. 9-10. Approximate 12 h at volume 25/50 with ULT POWER SOUND on. At maximum volume the claim is 3 h.
Playback with battery extension (claimed)
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 energy
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 capacity
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.
Not available
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-ion4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
User-replaceable battery
Not available
Not available
Full charge time
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.
5h4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026Charging the speaker, p. 9. About 5 h from empty to full, speaker off, using 1.5 A adapter. Supplied cable is rated 1.5 A. A 3 A adapter and cable reduce charging time.
Quick charge duration
Not available
Not available
Playback after quick charge
Not available
Not available
Charging input rating
Not available
5 V DC, 3 A4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026
Max charging input
Not available
Not available
USB Power Delivery charging
Not available
Not available
Charges other devices
Not available
Not available
Max power-bank output
Not available
Not available
Wireless charging
Not available
Not available

Durability

4 of 5 differ
Dust and water rating
IP671Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Exact published IP rating. QSG specifies 1 m immersion for 30 minutes.
IP673Maker product pagesony.com/electronics/support/speakers-wireless-speakers/srs-ult10/specificationsRead 8 October 2026Requires the cap to be securely closed. Accessories and exposed connectors are not water or dust resistant.
Floats
Not available
Yes6Reviewrtings.com/speaker/reviews/sony/ult-field-1Read 8 October 2026Public comparison with JBL Flip7 states RTINGS found FIELD 1 floats.
Drop resistance
Not available
Yes8Maker product pageelectronics.sony.com/audio/speakers/wireless-speakers/p/srsult10-bRead 8 October 2026
Drop test height
Not available
1.22m8Maker product pageelectronics.sony.com/audio/speakers/wireless-speakers/p/srsult10-bRead 8 October 2026Footnote 2. MIL-STD 810H Method 516.8-Shock, 1.22 m onto plywood 5 cm thick. Does not guarantee damage-free drops or retention of IP performance.
Carry features
Integrated carry loop1Maker product pagejbl.com/GO-4.htmlRead 8 October 2026Maker describes the integrated or supplied carry accessory.
Adjustable multi-way strap2Maker product pageelectronics.sony.com/audio/speakers/wireless-speakers/p/srsult10-bRead 8 October 2026

Measured

1 of 6 differ
Playback time (measured)
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.
28.75h7Measurementsoundguys.com/sony-ult-field-1-review-113404Read 8 October 2026Battery test section. SoundGuys measured 28 h 45 min with ULT off, compared with Sony 12 h claim with ULT on. Test volume, firmware and codec are not stated. These are different sound modes and cannot be compared directly.
Max sound pressure (measured)
Not available
Not available
Low-frequency extension (measured)
Not available
Not available
High-frequency extension (measured)
Not available
Not available
Audio latency (measured)
Not available
Not available
Full charge time (measured)
Not available
Not available

Dimensions and weight

3 of 3 differ
Dimensions
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.
Width206Height77Depth76mm(8.1 × 3 × 3 in)4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026Specifications. Approximate W × H × D, including projecting parts and controls.
Weight
Not available
650g(1.4 lb)4Owner's manualhelpguide.sony.net/speaker/7862/v1/en/print.pdfRead 8 October 2026Specifications. Approximate mass including battery.
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.
Fabric grille, Rubberized plastic end caps5Reviewsoundguys.com/sony-ult-field-1-review-113404Read 8 October 2026

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
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.
Speaker, USB-A to USB-C cable, Strap3Maker product pagesony.com/electronics/support/speakers-wireless-speakers/srs-ult10/specificationsRead 8 October 2026

Warranty

None of 1 known
Manufacturer warranty (source market)
Not available
Not available

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