Request a product
Photo 1 of 20

Sony ULT FIELD 3 · Photo source

Sony ULT FIELD 3
Photo 1 of 20

Sony ULT FIELD 3 · Photo source

Sony · ULT

ULT FIELD 3

Released April 2025

The ULT FIELD 3 is a 1.2 kg Sony Bluetooth speaker with a shoulder strap and bass boost, for people who want more sound and battery life than the ULT FIELD 1 in a still-portable size.

Type
Portable speaker
Atmos
No
Connects by
Bluetooth
Battery
24 h
Weight
1.2 kg

What reviewers say

Reviewers praise the rugged build and long battery life, and find the ULT mode adds bass punch. The shared criticisms are a custom EQ that cannot match the ULT mode's bass and a bulky size; What Hi-Fi? found the sound inoffensive but forgettable, with bass lacking clarity and less detail than rivals.

From soundguys.com, whathifi.com and tomsguide.com

Specifications

Report a wrong or missing spec

Sound

Type
Portable speaker
Dolby Atmos
No
Drivers
One woofer (about 86 × 46 mm) and one tweeter (about 20 mm), with side passive radiators
Room tuning
ULT button for ULT POWER SOUND bass boost (on or off); Sound Field Optimization; 7-band custom equaliser in the app

Connections

Wi-Fi
No
Bluetooth
Yes
AirPlay
No
Voice assistants
None
Bluetooth
Bluetooth 5.2; SBC and AAC; A2DP, AVRCP, HFP, HSP and SPP; multipoint connection to two devices; Google Fast Pair
Ports
USB-C for charging in and out (can charge a phone at 5 V, up to 1.5 A); not for audio
Multi-room
Stereo Pair with a second ULT FIELD 3; Party Connect with compatible Sony speakers
App
Sony | Sound Connect

Design

Battery life (maker's claim)
Up to 24 hours
Water and dust resistance
IP67
Weight
1.2 kg
Battery life detail
About 24 hours at volume 22 of 50 with ULT POWER SOUND on; about 5 hours at maximum volume; about 3.5 hours to charge with a 9 V 3 A USB PD adaptor; 10 minutes of charging gives about 120 minutes of playback; Battery Care mode limits charge to about 90%; STAMINA mode for longer playback
Controls
Buttons for power, Bluetooth/Stereo Pair, CONNECT (Party Connect), play/call, volume and ULT; battery and Battery Care button behind the cap
Microphones
Built-in omnidirectional MEMS microphone for hands-free calls
Mounting
Detachable shoulder strap
Size
256 × 113 × 79 mm (W × H × D)
Colours
Black, Off White, Forest Grey
In the box
Speaker, shoulder strap, USB-C to USB-C cable

Pros and cons

Pros

  • Up to 24 hours at a moderate volume with ULT POWER SOUND on
  • IP66 and IP67, salt-water resistant
  • USB-C port can charge a phone; multipoint, Stereo Pair and Party Connect

Cons

  • Bluetooth only, with SBC and AAC; no Wi-Fi or AirPlay
  • No 3.5 mm input
  • About 5 hours at full volume

Closest rivals

Model
TypeAtmosConnects byBatteryWeightReleased
JBLCharge 6
Portable speakerNoBluetooth24 h0.96 kgApr 2025
BoseSoundLink Plus
Portable speakerNoBluetooth20 h1.53 kgJun 2025
Anker soundcoreBoom 3i
Portable speakerNoBluetooth16 h0.78 kgJun 2025

Sources

  1. sony.com.au/wireless-speakers/products/ult-field-3/spec
  2. helpguide.sony.net/speaker/7866/v1/en/contents/TP1001870459.html
  3. sony.com.au/wireless-speakers/products/ult-field-3
  4. helpguide.sony.net/speaker/7866/v1/en/contents/TP1001870455.html
  5. helpguide.sony.net/speaker/7866/v1/en/contents/TP1001870453.html
  6. helpguide.sony.net/speaker/7866/v1/en/contents/TP1001870432.html
  7. sony.eu/presscentre/sony-introduces-three-new-speakers-in-the-ult-power-sound-r…

Photo: sony.scene7.com

Spot a mistake? Tell us