Sony ULT Field 3

Name: Sony ULT Field 3
Brand: Sony
SKU: 8152

Manufacturer: Sony

The Sony ULT Field 3 is a portable speaker designed for outdoor and on-the-go use, offering a rugged build alongside wireless convenience. Rated IP66 for dust and water resistance, it can handle demanding environments without compromising performance. The speaker connects via Bluetooth 5.2 and supports stereo pairing with a second compatible unit, giving users flexibility in how they set up their listening experience.

Weighing 1200 g and measuring 256 mm wide by 113 mm tall with a depth of 79 mm, the ULT Field 3 has a substantial but portable form factor. It covers a frequency range of 20 Hz to 20000 Hz through a 20 mm driver and delivers up to 24 hours of playback on a single charge via its built-in rechargeable battery, which is topped up through a USB Type-C port. Additional features include a battery level indicator, voice prompts, a sleep timer, and a detachable cable, while smartphone remote control is supported through a dedicated app.

Pros

IP66 rating provides protection against dust ingress and powerful water jets, making it suitable for outdoor use
24-hour battery life allows for extended use between charges
Includes a battery level indicator so remaining charge is always visible
Supports stereo pairing with a second compatible unit for a wider soundstage
Bluetooth 5.2 ensures a stable wireless connection
Detachable cable adds convenience for transport and replacement

Cons

Maximum Bluetooth range of only 10 m limits flexibility in larger outdoor spaces
No support for advanced audio codecs such as aptX, LDAC, or AAC, restricting wireless audio quality options
Single driver with no subwoofer or passive radiator may limit low-end audio output
No AUX input or 3.5 mm jack means wired audio sources cannot be connected
Wireless charging is not supported, requiring a cable for every recharge
No fast pairing, which can slow down the initial connection process

Who is this for?

The Sony ULT Field 3 is well-suited to users who frequently take their speaker outdoors or into demanding environments, thanks to its IP66 dust and water resistance. The 24-hour battery life makes it a practical choice for long days away from a power source, whether at the beach, on a camping trip, or during extended outdoor gatherings. Users who want to expand their setup will also appreciate the stereo pairing capability, which allows two units to be linked for a wider listening experience.

Who is this NOT for?

Users who prioritize high-fidelity wireless audio will find the ULT Field 3 limiting, as it lacks support for any advanced codecs such as LDAC, aptX, or AAC, which restricts the quality ceiling of its Bluetooth audio transmission. It is also not a good fit for those who need flexible wired connectivity, since there is no 3.5 mm audio jack or AUX input available. Additionally, listeners who expect deep, room-filling bass may be disappointed, as the speaker has no subwoofer or passive radiator, making it less suited for bass-heavy or high-volume indoor listening.

Design:

Ingress Protection (IP) rating	IP66
volume	2285.312 cm³
driver unit size	20 mm
has a neodymium magnet	✕
control panel placed on a device	✓
water resistance	Water resistant
travel bag is included	✕
has a touch screen	✕
has RGB lighting	✕
has a detachable cable	✓
is a neckband speaker	✕
has a remote control	✕
weight	1200 g
height	113 mm
width	256 mm
thickness	79 mm

The Sony ULT Field 3 carries an IP66 ingress protection rating, confirming it is dust-tight and resistant to powerful water jets, making it well-suited for outdoor use. It measures 256 mm wide, 113 mm tall, and 79 mm thick, with a total volume of 2285.312 cm³ and a weight of 1200 g. The speaker features a 20 mm driver unit and includes a detachable cable, while the control panel is placed directly on the device itself. It does not include a travel bag, touch screen, remote control, RGB lighting, or a neodymium magnet, and it is not a neckband-style speaker.

Sound quality:

has stereo speakers	✕
has a subwoofer	✕
highest frequency	20000 Hz
lowest frequency	20 Hz
Has a passive radiator	✕

The Sony ULT Field 3 covers a full frequency range of 20 Hz to 20000 Hz, spanning the complete spectrum of human hearing. It operates as a single-channel speaker, as it does not include stereo speakers, a subwoofer, or a passive radiator.

Power:

Battery life	24 hours
has a battery level indicator	✓
has a rechargeable battery	✓
has a removable battery	✕
has wireless charging	✕

The Sony ULT Field 3 is equipped with a built-in rechargeable battery offering up to 24 hours of battery life, and a battery level indicator is included to help users keep track of remaining charge. The battery is not removable, and the speaker does not support wireless charging.

Connectivity:

Bluetooth version	5.2
supports Bluetooth pairing using NFC	✕
has a socket for a 3.5 mm audio jack	✕
has an AUX input	✕
has aptX Lossless	✕
has LDAC	✕
has aptX Adaptive	✕
has aptX HD	✕
has aptX	✕
has aptX Low Latency	✕
has AAC	✕
has AirPlay	✕
has Chromecast built-in	✕
has Auracast	✕
has Bluetooth LE Audio	✕
maximum Bluetooth range	10 m
supports Wi-Fi	✕
USB ports	1
Has USB Type-C	✓
has a 3.5mm male connector	✕
has an external memory slot	✕
is DLNA-certified	✕
supports Ethernet	✕
has a microphone input	✕

The Sony ULT Field 3 connects wirelessly via Bluetooth 5.2 with a maximum range of 10 m, and includes a single USB Type-C port for wired connectivity. It does not support NFC pairing, Wi-Fi, AirPlay, Chromecast, Auracast, or Bluetooth LE Audio, and no advanced audio codecs are available, including aptX, aptX HD, aptX Adaptive, aptX Lossless, aptX Low Latency, LDAC, or AAC. The speaker also lacks a 3.5 mm audio jack socket, an AUX input, a 3.5 mm male connector, an external memory slot, an Ethernet port, a microphone input, and DLNA certification.

Features:

Can be used wirelessly	✓
supports a remote smartphone	✓
has fast pairing	✕
has voice commands	✕
Has a radio	✕
Has voice prompts	✓
has a mute function	✕
works as a power bank	✕
has a sleep timer	✓

The Sony ULT Field 3 can be used wirelessly and supports smartphone remote control, allowing users to manage playback from their device. It includes voice prompts for audio feedback and a sleep timer for scheduled shutoff. The speaker does not offer fast pairing, voice commands, a built-in radio, a mute function, or the ability to charge other devices as a power bank.

Miscellaneous:

supports pairing for stereo sound	✓

The Sony ULT Field 3 supports stereo pairing, allowing two compatible units to be paired together for stereo sound playback.

Final Verdict

The Sony ULT Field 3 is a rugged portable speaker built with outdoor practicality at its core. Its IP66 rating combined with 24-hour battery life makes it a dependable companion for extended use in demanding conditions, and stereo pairing support adds a useful layer of flexibility for those who want a broader soundstage. That said, the absence of advanced audio codecs and wired input options means it caters to casual listeners rather than audiophiles. For users who need a durable, wireless speaker that can handle the elements without constant recharging, the ULT Field 3 delivers a well-rounded set of specifications that align closely with its intended use case.