Sony ULT Field 5 Wireless Waterproof Portable Bluetooth 360° Speaker

The Sony ULT Field 5 Wireless Portable Bluetooth Speaker is a rugged portable speaker made for the backyard, the beach, and travel. It has strong bass, LED lighting, and an IP67 waterproof, dustproof, and rustproof body.

This Sony ULT Field 5 portable speaker review covers its design, audio performance, and usability. It has a 2-way active audio design that pairs a dedicated woofer and tweeter, and a ULT button that boosts bass and sound pressure. The Sony ULT Field 5 Bluetooth Speaker also includes a 10-band equalizer, letting you customize the sound for acoustic or EDM playlists.

This review looks at how its bass performance, 360° party lighting, and touch controls work in use, and how its 25-hour battery life and quick charge capability suit road trips.

Later in this Sony ULT Field 5 Speaker review, we’ll pit it against major competitors like the JBL Xtreme 4, Ultimate Ears Epicboom, and Bose SoundLink Max to see how it compares. By the end, you should know whether it is the right waterproof Bluetooth speaker for outdoor parties, travel, or home use. Setup and interface come first. It is one of the top 10 best portable speakers of 2025.

How easy is the Sony ULT Field 5 to set up and control?

Setting up the Sony ULT Field 5 Speaker is simple. It is a plug and play experience for people who just want to hit play. The speaker pairs through Bluetooth and maintains a stable signal up to 30 meters, indoors or at an outdoor gathering.

Once powered on, the Sony ULT Field 5 Bluetooth Speaker starts with its ambient 360° party lighting. The touch control interface controls playback, lighting modes, and EQ adjustments. Sony’s app offers a customizable 10-band equalizer, so you can boost the lows for bass-heavy tracks or the highs for vocal clarity.

Pairing the Sony ULT Field 5 portable speaker with multiple devices is also easy. It connects with smartphones, tablets, and MP3 players through Bluetooth 5.0, so everyone can take a turn to DJ. The built-in microphone lets you take calls or use voice assistants.

Every button feels responsive, and pairing is fast and reliable.

How well is the Sony ULT Field 5 built?

The Sony ULT Field 5 Speaker looks solid too. It has a plastic enclosure wrapped in mesh fabric, giving it a sleek yet durable look. The 7.31-pound frame feels solid and can handle bumps, splashes, and drops.

With an IP67 waterproof, dustproof, and rustproof rating, this Sony ULT Field 5 waterproof speaker suits the beach, the backyard, or a mountain cabin. The shoulder strap makes it easy to carry during travel or outdoor events. The matte black finish gives it a minimalist look, and the subtle LED ring lighting syncs with the beat.

The touch-sensitive controls are responsive and conveniently placed for quick volume adjustments or mode changes. A sealing flap protects the USB Type-C port well, preventing dust or water intrusion, while the bass-enhancing passive radiators amplify low-end frequencies without distortion. Its 46-millimeter drivers deliver balanced sound dispersion that fills spaces evenly.

The free-standing mounting type means it’s stable on any surface, and the reinforced chassis suits travel and parties. T

How does the Sony ULT Field 5 sound?

The Sony ULT Field 5 Speaker is loud and powerful. It has a 2-way active design, combining a dedicated woofer for deep, dynamic lows and a tweeter that keeps vocals and highs clear. Together, they deliver a full stereo image that feels larger than the speaker itself.

The ULT button activates a noticeable bass enhancement. For fans of EDM, hip-hop, or cinematic playlists, this feature makes the Sony ULT Field 5 Bluetooth Speaker a good pick. The 10-band equalizer adds more control, from mellow chill-out tones to intense party bass. Sony’s dynamic driver technology keeps distortion minimal even at max volume.

The Sony ULT Field 5 portable speaker also has dual passive radiators and well-balanced air chambers that optimize low-frequency output, creating bass that’s tight and responsive rather than muddy. The frequency response and 2.0 audio channels ensure that instruments stay separated and vocals stay bright. It keeps its balance and detail with podcasts, live recordings, or bass-heavy playlists.

The Sony ULT Field 5 waterproof speaker produces bold sound pressure that fills outdoor and indoor spaces alike. Its Bluetooth connectivity streams without latency issues, and the tonal balance stays consistent. It is a portable speaker for listeners who want both punch and precision.r, and customization options. It’s a party beast that plays clean.

What features does the Sony ULT Field 5 have?

The Sony ULT Field 5 Speaker has more features than a typical Bluetooth speaker. The ULT bass boost button adds low-end depth and sound pressure to any song, whether you’re streaming from a smartphone, tablet, or MP3 player.

The 360° party light system on the Sony ULT Field 5 portable speaker synchronizes with the rhythm of your music, for parties or chill sessions. Combined with its rugged IP67 waterproof and dustproof design, you can enjoy that light show anywhere, from the living room to the beach. The LED lighting control is accessible through Sony’s mobile app, letting you adjust brightness, color, and sync patterns.

With up to 25 hours of playback on a single charge, it’s built for long weekends and nonstop gatherings. When you’re running low on juice, a 10-minute quick charge gives you 2 hours of playtime. It also features a USB Type-C port and a standard USB 2.0 port, letting you charge devices directly from the speaker.

The built-in microphone supports hands-free calls with clear audio pickup, while the touch control panel provides responsive interaction without the need for an app. You can even pair two ULT Field 5 units for stereo sound through the Party Connect feature.

How long does the Sony ULT Field 5 battery last, and how far does Bluetooth reach?

The Sony ULT Field 5 Speaker keeps the music going long after the party starts. Its battery is a strong selling point. With a 25-hour battery life, this Sony ULT Field 5 Wireless Portable Bluetooth Speaker can handle long listening sessions, outdoor gatherings, or all-day road trips. It also supports quick charging, so just 10 minutes of charge gives you up to 2 hours of playback.

The internal 9-volt battery distributes power efficiently, keeping sound quality stable as the charge level drops. With the included USB Type-C cable, recharging is fast, and the additional USB 2.0 port lets you charge other devices directly from the speaker.

On the connectivity side, the Sony ULT Field 5 portable speaker offers Bluetooth 5.0 with a 30-meter range for stable connections with your smartphone, tablet, or MP3 player. It suits streaming playlists in larger spaces. The touch control interface makes pairing easy, and once connected, the speaker remembers your device for instant reconnection the next time you power it on.

The Sony ULT Field 5 waterproof speaker also supports multi-device connectivity, so you can switch between sources without constantly re-pairing. You can play music from your phone, take a call, or stream from another device. Its built-in microphone handles hands-free conversations.

How does the Sony ULT Field 5 compare with JBL, Ultimate Ears and Bose?

This section compares the Sony ULT Field 5 Speaker with other high-end Bluetooth speakers on power, durability, and usability.

Sony ULT Field 5 Speaker vs JBL Xtreme 4

The Sony ULT Field 5 portable speaker has a 2-way active driver system, combining a dedicated woofer and tweeter that deliver clear, layered sound. The JBL Xtreme 4 focuses more on balanced mids and less on deep bass performance. Sony’s ULT bass boost button creates a noticeably fuller low-end thump, ideal for EDM, hip-hop, and movie soundtracks that thrive on intensity. The Sony ULT Field 5 Bluetooth Speaker also delivers better longevity, with up to 25 hours of playtime versus JBL’s 20.

For frequent travelers or outdoor enthusiasts, the Sony ULT Field 5 waterproof speaker offers stronger dustproof protection, quick charging that delivers 2 hours of music from a 10-minute charge, and a 360° lighting setup that adds visual flair to any gathering. JBL’s lighter frame gives it portability points, but Sony offers reliability and stamina for long sessions.

Read our in-depth JBL Xtreme 4 speaker review to learn more about its features and performance. If you are on a tight budget, or prefer affordable alternatives, the JBL Xtreme 3 speaker review and JBL Xtreme 2 speaker review both are good choices that are still relevant even in 2025.

Sony ULT Field 5 Speaker vs Ultimate Ears Epicboom

Comparing the Sony ULT Field 5 Bluetooth Speaker to the Ultimate Ears Epicboom shows Sony’s focus on customization and bass. The Epicboom excels in clarity and offers a wide 360-degree sound field, but Sony’s 10-band equalizer gives listeners more control over the sound. The ULT button amplifies low frequencies to a level that feels cinematic, while its dynamic driver system keeps the sound clean and distortion-free even at full volume.

The Sony ULT Field 5 portable speaker has the advantage of endurance and lighting appeal. With a 25-hour battery life and 360° LED lighting system, it works as both a loud speaker and a light show. The Ultimate Ears Epicboom, though lighter, cannot match Sony’s output pressure or feature versatility. The USB port for charging external devices also turns the Sony unit into a mini power bank.

Read our in-depth Ultimate Ears Epicboom speaker review to learn more about its performance and features. Alternatively, you can explore the Ultimate Ears Hyperboom speaker review if you are looking for a party-packed and powerful portable speaker that will thunder the floor with its very own firepower.

Sony ULT Field 5 Speaker vs Bose SoundLink Max

When you line up the Sony ULT Field 5 waterproof speaker beside the Bose SoundLink Max, Sony’s sound profile is bolder and more energetic. Bose offers a warmer, more intimate audio tone, but Sony’s 2.0 channel stereo setup and 46-millimeter drivers project music with superior width and impact. The ULT button brings bass you can physically feel, while Bose leans toward balance and subtlety.

The Sony ULT Field 5 Bluetooth Speaker combines endurance and presentation. The 25-hour battery means longer playback with less downtime, and the party lighting system livens up social settings. The touch interface, built-in microphone, and rugged IP67 design make it work indoors and outdoors.

Read our in-depth Bose SoundLink Max speaker review to learn more about its specifications, features and performance. On the budget side, the Bose SoundLink Plus speaker review is an affordable alternative. If you want to stick to the Bose brand, they have an in-depth Bose SoundLink Speaker Series guide that cover all of its popular speakers. The Klipsch Nashville is a waterproof portable, and Klipsch The Austin is a portable mini speaker.

Should You Buy the Sony ULT Field 5 Speaker?

The Sony ULT Field 5 Wireless Portable Bluetooth Speaker is a good buy if you value raw power, smart features, and long-lasting durability. It can handle daily use, outdoor adventures, and high-volume parties.

This speaker’s 2-way active design, complete with a dedicated woofer and tweeter, creates a wide soundstage. The ULT bass boost button adds low-end impact you can feel. Combined with its 10-band equalizer, users can fine-tune their experience across multiple genres, from acoustic clarity to deep electronic basslines. The Sony ULT Field 5 Bluetooth Speaker delivers distortion-free sound that appeals to both casual listeners and dedicated audiophiles.

For endurance, the Sony ULT Field 5 portable speaker is strong. The 25-hour battery life and quick charge technology cover long days and extended travel. The IP67 waterproof, dustproof, and rustproof rating suits pool parties, beach trips, or outdoor events where conditions are less than ideal.

It’s easy to pair and easy to carry. It also has a USB port for device charging and a built-in microphone for hands-free calls.

In short, the Sony ULT Field 5 waterproof speaker is a smart buy for anyone who wants sound that hits hard, lasts long, and looks good while doing it.f you prioritize sound purity at home, the HYPERBOOM is compelling. But for a balanced, outdoor-party beast, the ULT Field 5 is a standout especially if you’re already in the Sony ecosystem.

You can buy Sony ULT Field 5 speaker here on Amazon.

Frequently Asked Questions (FAQs)

These are the most common questions people ask before buying the Sony ULT Field 5 Speaker.