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Sony ULT FIELD 5 · Photo source

Sony ULT FIELD 5
Photo 1 of 16

Sony ULT FIELD 5 · Photo source

Sony · ULT

ULT FIELD 5

Released April 2025

The ULT FIELD 5 is a 3.3 kg Sony Bluetooth party speaker with a shoulder strap, two bass-boost modes and lights, for outdoor listening where the ULT FIELD 3 isn't loud enough.

Type
Portable speaker
Atmos
No
Connects by
Bluetooth
Battery
25 h
Weight
3.3 kg

What reviewers say

Reviewers agree it is very loud and powerful, with heavy bass in the ULT modes and a tough build. It is heavy, and SoundGuys found the EQ cannot match the ULT 2 preset's bass; Tom's Guide found the soundstage narrow and some midrange lost, and Trusted Reviews found the lighting underwhelming and the app confusing.

From soundguys.com, tomsguide.com and trustedreviews.com

Specifications

Report a wrong or missing spec

Sound

Type
Portable speaker
Dolby Atmos
No
Drivers
2-way; one X-Balanced Speaker Unit woofer (about 79 × 107 mm) and two tweeters (about 46 mm, left and right), with passive radiators
Room tuning
ULT button with ULT1 (deep bass) and ULT2 (punchy bass); Sound Field Optimization; 10-band custom equaliser in the app

Connections

Wi-Fi
No
Bluetooth
Yes
AirPlay
No
Voice assistants
None
Bluetooth
Bluetooth 5.3; SBC, AAC and LDAC; A2DP, AVRCP and SPP; multipoint connection to two devices; Google Fast Pair
Ports
3.5 mm audio input; USB-C for charging in and out (can charge a phone at 5 V, up to 1.5 A)
Multi-room
Stereo Pair with a second ULT FIELD 5; Party Connect with compatible Sony speakers
App
Sony | Sound Connect

Design

Battery life (maker's claim)
Up to 25 hours
Water and dust resistance
IP67
Weight
3.3 kg
Battery life detail
About 25 hours at volume 18 of 50 with ULT on and the lights off; about 10 hours with the lights on; about 2.5 hours at maximum volume with the lights on; about 3.5 hours to charge with a 9 V 3 A USB PD adaptor; 10 minutes of charging gives about 100 minutes of playback; Battery Care mode limits charge to about 90%
Controls
Buttons for power, Bluetooth/Stereo Pair, CONNECT (Party Connect), play, volume, ULT and LIGHT; battery and Battery Care button behind the cap; 360° Party Lights
Microphones
None listed among the parts, and no calling profile (HFP or HSP)
Mounting
Detachable shoulder strap
Size
320 × 144 × 125 mm (W × H × D)
Colours
Black, Off White
In the box
Speaker, shoulder strap, USB-C to USB-C cable

Pros and cons

Pros

  • Up to 25 hours with the lights off, and IP66 and IP67 salt-water resistance
  • LDAC, a 3.5 mm input and a USB-C port that can charge a phone
  • ULT1 and ULT2 bass modes, Stereo Pair and Party Connect

Cons

  • Bluetooth only; no Wi-Fi or AirPlay
  • No microphone, so no hands-free calls
  • About 10 hours with the lights on, and 2.5 hours at full volume

Closest rivals

Model
TypeAtmosConnects byBatteryWeightReleased
JBLXtreme 5
Portable speakerNoBluetooth24 h2.9 kgApr 2026
MarshallMiddleton II
Portable speakerNoBluetooth30 h1.8 kgJul 2025
BoseSoundLink Plus
Portable speakerNoBluetooth20 h1.53 kgJun 2025

Sources

  1. sony.com.au/wireless-speakers/products/ult-field-5/spec
  2. helpguide.sony.net/speaker/7859/v1/en/contents/TP1001870518.html
  3. sony.com.au/wireless-speakers/products/ult-field-5
  4. helpguide.sony.net/speaker/7859/v1/en/contents/TP1001870515.html
  5. helpguide.sony.net/speaker/7859/v1/en/contents/TP1001870513.html
  6. sony.eu/presscentre/sony-introduces-three-new-speakers-in-the-ult-power-sound-r…

Photo: sony.scene7.com

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