Sony ULT Field 5 Review: Rated 3.5/5

Last updated: October 28, 2026

The Sony ULT Field 5 is rated 3.5/5 for sound quality, #56 of 115 Large Size Portable Bluetooth Speakers. See all Portable Bluetooth rankings for every top pick.

Sony ULT Field 5 · Editor's rating 3.5/5, ranked #56 of 115 Large Size Portable Bluetooth Speakers
Check price at Amazon ($268.00) →35 percent above its usual $198 ↓ price history

Prices on this page were last checked October 30, 2026 at 6:34 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Brand: Sony

#56 Sony ULT Field 5: $268.00 Amazon $268.00 Sony $349.99 eBay

Older models: the Sony SRS-XB43 (ranked lower, rated 3.5/5) and the Sony SRS-XG300 (ranked lower, rated 3.1/5). See every Sony XB and ULT generation.

Same family: the Sony ULT Field 1 (smaller model, rated 3.1/5), the Sony ULT Field 7 (smaller model, rated 3.2/5), the Sony ULT Tower 10 (smaller model, rated 3.9/5), the Sony ULT Field 3 (smaller model, rated 3.4/5), the Sony ULT Tower 5 (larger model, rated 4.5/5), the Sony ULT Tower 7 (larger model, rated 4.7/5), the Sony ULT Tower 9 (larger model, rated 4.2/5) and the Sony ULT Tower Max (larger model, rated 4.8/5).

Pros: A tough, waterproof party speaker with loud, bass focused output, an aux input, a power bank and a long battery. A tough 3.3kg portable with IP67 protection, LDAC/AAC support, aux input, a 10-band app EQ, Party Connect, USB-C power-bank output and a claimed 25-hour battery. Reviews find it energetic and dynamic with substantial bass, enough volume for a yard, and two ULT modes that let bass-focused listeners choose a deeper or punchier presentation.

Cons: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth. Deep bass is less authoritative than the enclosure suggests, and the loud confirmation tone when pressing the ULT button is an unnecessary annoyance. Use the app EQ and audition it before buying for detail-focused music.

Is the Sony ULT Field 5 right for you?

Buy it if

  • you want it outdoors, by the pool or in the shower (IP67).
  • you want long battery life (claimed 25 hours).
  • you want to charge your phone from it.
  • you want stereo sound from a single speaker.

Skip it if

ReleasedApr 2025 (1 year ago)
Amplifier Power27W
AppYes
Aux InputYes
Battery Life25 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC, AAC, LDAC
Bluetooth Version5.3
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions12.6” x 5.7” x 4.9” (320 x 144 x 125 mm)
Drivers2x 46mm tweeters + 1x 79mm x 107mm woofer
EQYes (App + ULT button)
IP RatingIP67
OmnidirectionalNo
Party ModeYes (Party Connect up to 100 speakers)
Power BankYes (USB-C)
Power InputUSB-C
StereoYes
StrapYes (detachable shoulder strap)
TWSYes
Weight7.3 lbs (3.3 kg)
Check current price at Amazon ($268.00) →Check current price at Sony ($349.99) →Search eBay for Sony ULT Field 5 →

Price history

$198$348Aug 6, 2026 to Sep 29, 2026: $198Sep 29, 2026 to Oct 19, 2026: $348Oct 19, 2026 to Oct 30, 2026: $268Aug 2026Today

$268 is 35 percent above its typical $198 over the last three months, and it has been as low as $198 (Aug 2026). It may be worth waiting for a sale.

Head-to-Head Comparisons

96 comparisons

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