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Sony ULT Field 31 / 12
Sony

Sony ULT Field 3

Current price · Amazon US
$148
Check Price on Amazon

Price last checked 1d ago

Value for Money & durability / build quality
7/ 10
7
0.010.0

At 7, its value for money beats 38% of bluetooth speakers we've measured.

Measured on 56 of the 167 we've cataloged.

9/ 10
9
0.010.0

A 9 puts its durability / build quality in the top half of bluetooth speakers we've measured.

Measured on 53 of the 167 we've cataloged.

Key specs

Battery Life Wireless
24 hAbove average
24 h
5 h30 h

above average for bluetooth speakers — based on 137 of 167 we've cataloged.

IP Rating
IP67Most common
IP6740%IPX730%IPX49%IP686%

IP67 is the most common — on 40% of the 128 bluetooth speakers we've cataloged (of 167).

Bluetooth Version
5.2Most common
5.334%5.021%5.410%5.210%

5.3 is the most common — on 34% of the 135 bluetooth speakers we've cataloged (of 167).

Is Portable
YesMost common
True92%False8%

True is the most common — on 92% of the 160 bluetooth speakers we've cataloged (of 167).

Battery

Battery Life Wireless
24 h
Charging Method
USB-C
Fast Charging
Yes
Powerbank Output
Yes

Build

IP Rating
IP67
Floating Design
No

Connectivity

Bluetooth Version
5.2
Bluetooth Codec
SBC, AAC
Connection Type
Bluetooth
Multi Speaker Chain
Yes
Stereo Pairing
Yes

Design

Is Portable
Yes
Color Options
Black, forest gray, off white, orange
Dimensions Depth
79 mm
Dimensions Height
113 mm
Dimensions Width
113 mm
Carry Strap
Yes
Power Source
Rechargeable battery
Weight
1200 g

Features

Speakerphone
Yes
Companion App
IOS + Android

Sound

Amplification
Active (powered)
Channels
1.0 (mono)
Driver Count
2

SoundGuys review

Read the full review ›
SOUNDGUYS rating
6.5/ 10
Worth a look
Dave Carr
Reviewed byDave CarrVideo Producer/WriterReviewed April 2025
Design8.0
Portability7.0
Features6.0
Value7.0
The verdict

While the ULT Field 3 packs a decent low-end punch in ULT mode, it’s a bit of a one-trick pony, sound-wise. If you’re not a fan of the ULT EQ setting, your only option is to use the custom EQ, which won’t give you the same bass-heavy performance—leaving you with a less-than-satisfying overall sound.

✓What we like
✓IP67
✓Long battery life
✓ULT setting sound quality
✓Shoulder strap included
✓USB-C In/Out for charging devices
✕What could be better
✕Large enclosure
✕Strap can be challenging to remove
✕Custom EQ cannot match ULT bass levels
Read the full SoundGuys review →

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