Sony Ult Field 1 Review | 130 Data compared

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  • Avg. price in UK: ~£90
  • Avg. price in US: ~$110
  • Audio output power: 30.00 W
  • Battery life: 12 hours
  • IP rating: IP67
  • Bluetooth version: 5.3
  • Weight: 650 g

Sony Ult Field 1 review. Compare 130 technical specifications and user reviews to see how this product ranks in the Portable Speakers category and whether it is worth buying.

7.7

Overall score

What it is: An overall evaluation of products in the Portable Speakers category, based on technical analysis and user reviews.

When it matters: When you need a quick reference for identifying the best products in the Portable Speakers category.

Score components:

80.0%

7.2

Technical Score

20.0%

9.6

User score

Very good
7.2

Technical Score

What it is: An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.

When it matters: When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.

Score components:

32.0%

7.0

Audio

20.0%

5.7

Battery

18.0%

9.2

Durability

16.0%

6.7

Connectivity

8.0%

8.3

Controls

3.0%

8.7

Design

3.0%

6.1

Smart features

Very good
9.6

User score

What it is: A rating that combines user reviews with the total review volume for products in the Portable Speakers category.

When it matters: When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

9.4

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.7
(1673)

(Reviews last updated: August 2026)

Exceptional
  • 9.1
    Outdoor durability

    Score components:

    40.0%

    10

    Water resistance

    25.0%

    9.7

    IP rating

    20.0%

    9.5

    Weight

    15.0%

    5.2

    Battery life

  • 5.3
    Powerful sound

    Score components:

    45.0%

    4.4

    Audio output power

    25.0%

    5.2

    Battery life

    15.0%

    9.5

    Weight

    15.0%

    4.0

    Party mode

  • 4.9
    Home listening

    Score components:

    35.0%

    4.0

    Multi-room support

    30.0%

    4.0

    Wi-Fi connectivity

    20.0%

    4.4

    Audio output power

    15.0%

    9.5

    Weight

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Best prices in UK

Best rankings

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Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Sony ULT Field 1 is an ultra-portable, 650g Bluetooth 5.3 speaker measuring 20.6 x 7.6 x 7.5 cm, engineered with a front-facing tweeter, woofer, dual passive radiators, and an angled driver arrangement. Its primary highlights include a rugged IP67 waterproof, dustproof, and shockproof chassis, a versatile multi-way paracord strap, clear hands-free calling with echo cancelling, and a dedicated "ULT" physical button that significantly boosts low-end bass performance and sound pressure. However, its downsides include an advertised 12-hour battery life that rapidly drops to around 3 to 6 hours at higher volumes, notable audio compression when played at maximum volume, downmixing of stereo content to a mono configuration, and a lack of backwards compatibility with older Sony "Party Connect" speaker networks.

Technical Specifications of portable speaker Sony Ult Field 1

Technical Score

What it is: An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.

When it matters: When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.

Score components:

32.0%

7.0

Audio

20.0%

5.7

Battery

18.0%

9.2

Durability

16.0%

6.7

Connectivity

8.0%

8.3

Controls

3.0%

8.7

Design

3.0%

6.1

Smart features

7.2
Sony Ult Field 1 has a technical score of 7.22 points, which is higher than 73.6% of products in this category.
User score

What it is: A rating that combines user reviews with the total review volume for products in the Portable Speakers category.

When it matters: When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

9.4

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.7
(1673)

(Reviews last updated: August 2026)

9.6
Sony Ult Field 1 has a user score of 9.58 points, which is higher than 96.1% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by products in the Portable Speakers category.
When it matters: When you prefer products in the Portable Speakers category that have been chosen and reviewed by many other buyers.
10
Sony Ult Field 1 has a popularity of 10 points, which is higher than 66.6% of products in this category.
Ratio quality/price

What it is: An indicator that combines the overall score of products in the Portable Speakers category with their prices.

When it matters: When you are comparing products in the Portable Speakers category and want a good balance between quality and price.

Score components:

60.0%

7.7

Overall score

40.0%

10

Price

8.4
Sony Ult Field 1 has a quality-to-price ratio of 8.4 points, which is higher than 91.5% of products in this category.
Audio output power
What it is: The maximum continuous power the speaker system can deliver.
When it matters: When you need enough output to fill a larger or noisier space.

Importance: HIGH

Good value: >= 20 W

30.00 W
Sony Ult Field 1 has an audio output power of 30.00 W which is higher than that of 62% of portable speakers and equal to that of 6.5% of portable speakers.
Total RMS output: 30.00 W.
Driver unit size
What it is: The diameter of each main speaker driver.
When it matters: When the size of the main driver influences bass reach and output capability.

Importance: HIGH

Good value: >= 50 mm

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Number of drivers
What it is: The total number of speaker drivers built into the unit.
When it matters: When fuller driver arrays and broader sound coverage matter.

Importance: MEDIUM

Good value: >= 2

2
Sony Ult Field 1 has 2 drivers, which is more than 24.5% of portable speakers and equal to the number in 45.5% of portable speakers.
Acoustic drivers: 2.
Frequency response tolerance
What it is: The allowed deviation around the stated frequency response curve.
When it matters: When a flatter and more accurate frequency response matters.

Importance: MEDIUM

Good value: <= 3 dB

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Lowest frequency
What it is: The lowest audible frequency the speaker can reproduce.
When it matters: When deeper bass extension matters.

Importance: HIGH

Good value: <= 60 Hz

20.00 Hz
Sony Ult Field 1 has a lowest frequency of 20.00 Hz which is lower than that of 84.8% of portable speakers and equal to that of 14% of portable speakers.
Lower frequency-response endpoint: 20.00 Hz.
Show more
Bluetooth connectivity
What it is: Indicates whether the speaker can receive audio over Bluetooth.
When it matters: When wireless playback from phones, tablets, or computers matters.

Importance: MEDIUM

Good value: yes

yes
Sony Ult Field 1 supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
What it is: The generation of Bluetooth supported by the speaker hardware.
When it matters: When compatibility and efficiency with newer Bluetooth devices matter.

Importance: LOW

Good value: >= 5.0

5.3
Sony Ult Field 1 supports Bluetooth version 5.3 which is newer than that of 78.7% of portable speakers and equal to that of 17.6% of portable speakers.
Bluetooth version: 5.3.
Maximum Bluetooth range
What it is: The farthest distance at which the Bluetooth link can remain usable.
When it matters: When the source device may be far from the speaker.

Importance: MEDIUM

Good value: >= 10 m

30.00 m
Sony Ult Field 1 has a maximum Bluetooth range of 30.00 m which is longer than that of 85.5% of portable speakers and equal to that of 10% of portable speakers.
Maximum Bluetooth range: 30.00 m.
Bluetooth profiles supported
What it is: The Bluetooth operating profiles available for playback, control, or calls.
When it matters: When Bluetooth playback, control, and call compatibility depend on specific profiles.

Importance: LOW

A2DP; AVRCP; HFP; HSP; SPP
Bluetooth LE Audio
What it is: Shows whether the speaker supports the low-energy Bluetooth audio standard.
When it matters: When newer low-power Bluetooth audio features matter.

Importance: LOW

Good value: yes

no
Sony Ult Field 1 does not support Bluetooth LE Audio. 2.5% of portable speakers offer this feature.
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Battery life
What it is: The playback time available from one full battery charge.
When it matters: When you need longer playback between charges.

Importance: HIGH

Good value: >= 20 h

12 hours
Sony Ult Field 1 has a battery life of 12 hours which is longer than that of 47.8% of portable speakers and equal to that of 15.7% of portable speakers.
Battery capacity
What it is: The amount of electrical charge the internal battery can store.
When it matters: When longer untethered playback or power-bank use needs more stored charge.

Importance: HIGH

Good value: >= 5000 mAh

2,900 mAh
Sony Ult Field 1 has a battery capacity of 2,900 mAh which is larger than that of 58.1% of portable speakers and equal to that of 0.5% of portable speakers.
Charging time
What it is: The time needed to recharge the battery fully.
When it matters: When the speaker needs to be ready again quickly.

Importance: MEDIUM

Good value: <= 4 h

5 hours
Sony Ult Field 1 has a charging time of 5 hours which is longer than that of 87% of portable speakers and equal to that of 7.7% of portable speakers.
Maximum charging input power
What it is: The maximum charging power the speaker can accept from a compatible power source.
When it matters: When faster charging requires the speaker to accept more input power.

Importance: LOW

Good value: >= 20 W

15 W
Sony Ult Field 1 has a maximum charging input power of 15 W which is higher than that of 73.6% of portable speakers and equal to that of 9.5% of portable speakers.
Built-in rechargeable battery
What it is: Indicates whether the speaker uses a battery that can be recharged.
When it matters: When portable use without disposable batteries or continuous mains power matters.

Importance: LOW

Good value: yes

yes
Sony Ult Field 1 has a built-in rechargeable battery. 18.7% of portable speakers offer this feature.
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IP rating
What it is: The ingress protection code for dust and water resistance.
When it matters: When dust and water protection need to match the intended environment.

Importance: HIGH

Good value: IP67+

IP67
Sony Ult Field 1 has an IP rating of IP67 which provides better ingress protection than 80% of portable speakers and the same ingress protection as 19.1% of portable speakers.
Water resistance
What it is: Indicates whether the enclosure can resist water exposure.
When it matters: When the speaker may be used near pools, rain, or splashes.

Importance: MEDIUM

Good value: yes

yes
Sony Ult Field 1 is water resistant. 38.3% of portable speakers offer this feature.
Dust resistance
What it is: Shows whether the enclosure is protected against dust ingress.
When it matters: When the speaker may be exposed to sand, soil, or dusty environments.

Importance: MEDIUM

Good value: yes

yes
Sony Ult Field 1 is dust resistant. 48.6% of portable speakers offer this feature.
Waterproof depth rating
What it is: The maximum water depth the speaker is rated to withstand.
When it matters: When the speaker may be submerged or used very close to water.

Importance: MEDIUM

Good value: >= 1 m

1 m
Sony Ult Field 1 has a waterproof depth rating of 1 m which is deeper than that of 52.6% of portable speakers and equal to that of 47.4% of portable speakers.
Drop resistance
What it is: Indicates whether the housing is designed to survive accidental drops.
When it matters: When the speaker may be bumped or suffer an accidental fall during outdoor or travel use.

Importance: LOW

Good value: yes

yes
Sony Ult Field 1 resists accidental impacts. 67.3% of portable speakers offer this feature.
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On-device controls placement
What it is: The physical area of the speaker where its controls are located.
When it matters: When you want controls that are easy to reach in the speaker intended placement.

Importance: LOW

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Touchscreen
What it is: Indicates whether a touch-sensitive screen is integrated.
When it matters: When direct visual control is more convenient than buttons or an app.

Importance: LOW

Good value: yes

no
Sony Ult Field 1 does not have a touchscreen. 0.3% of portable speakers offer this feature.
The speaker does not have an integrated touchscreen.
Smartphone app control
What it is: Shows whether the speaker can be controlled from a phone app.
When it matters: When remote settings, updates, or sound adjustment from a phone matter.

Importance: LOW

Good value: yes

yes
Sony Ult Field 1 supports smartphone app control. 46.1% of portable speakers offer this feature.
Compatible mobile app provides speaker control or settings.
Remote control
What it is: Indicates whether a dedicated remote control is supplied or supported.
When it matters: When you want to control playback from across the room.

Importance: LOW

Good value: yes

no
Sony Ult Field 1 does not include a remote control. 15% of portable speakers offer this feature.
No dedicated remote control is documented.
Fast pairing
What it is: Shows whether setup with compatible devices can be completed more quickly.
When it matters: When quick setup with compatible devices matters.

Importance: LOW

Good value: yes

yes
Sony Ult Field 1 supports fast pairing. 77.6% of portable speakers offer this feature.
Supports documented one-tap or quick device pairing.
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Weight
What it is: The total mass of the portable speaker.
When it matters: When carrying the speaker frequently or packing light matters.

Importance: LOW

Good value: <= 1000 g

650 g
Sony Ult Field 1 weighs 650 g which is lighter than that of 56.3% of portable speakers and equal to that of 0.4% of portable speakers.
Height
What it is: The vertical external dimension of the speaker body.
When it matters: When the speaker must fit beneath shelves or in a compact bag.

Importance: LOW

Good value: <= 20 cm

7.7 cm
Sony Ult Field 1 has a height of 7.7 cm which is shorter than that of 74.4% of portable speakers and equal to that of 0.3% of portable speakers.
Width
What it is: The side-to-side external dimension of the speaker body.
When it matters: When the speaker must fit a narrow shelf, bag, or tabletop.

Importance: LOW

Good value: <= 25 cm

20.6 cm
Sony Ult Field 1 has a width of 20.6 cm which is wider than that of 58.7% of portable speakers.
Depth
What it is: The front-to-back depth of the speaker housing.
When it matters: When the speaker should take up less front-to-back space.

Importance: LOW

Good value: <= 10 cm

7.6 cm
Sony Ult Field 1 has a depth of 7.6 cm which is shallower than that of 56.7% of portable speakers and equal to that of 1.1% of portable speakers.
Carry options
What it is: The available ways to carry, hang, or attach the speaker.
When it matters: When a handle, strap, or attachment point changes how you carry the speaker.

Importance: LOW

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Companion app name
What it is: The official app used to control settings and functions of the speaker.
When it matters: When app compatibility and the available control features depend on the official app.

Importance: LOW

Sony | Music Center
Firmware updates
What it is: Indicates whether the speaker can receive firmware revisions after purchase.
When it matters: When post-purchase fixes and feature improvements matter.

Importance: LOW

Good value: yes

yes
Sony Ult Field 1 supports firmware updates. 52.9% of portable speakers offer this feature.
Supports user-accessible firmware updates.
Firmware update method
What it is: The path used to install firmware updates on the speaker.
When it matters: When the convenience and reliability of installing updates matters.

Importance: LOW

App
Voice assistant support
What it is: Indicates whether the speaker can work with supported voice assistants.
When it matters: When hands-free control through a compatible assistant matters.

Importance: LOW

Good value: yes

yes
Sony Ult Field 1 supports voice assistants. 73.6% of portable speakers offer this feature.
Supports direct voice-assistant control.
Spotify Connect
What it is: Shows whether Spotify can stream directly to the speaker over the network.
When it matters: When Spotify should stream directly without keeping phone audio active.

Importance: LOW

Good value: yes

no
Sony Ult Field 1 does not support Spotify Connect. 10.8% of portable speakers offer this feature.
Does not support native Spotify Connect.
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Sony Ult Field 1 vs the average portable speaker

  • Better ingress protection
    Sony Ult Field 1 has better ingress protection than the average portable speaker (IP67 vs IPX5).
    What it is: The ingress protection code for dust and water resistance.
    When it matters: When dust and water protection need to match the intended environment.

    Importance: HIGH

    Good value: IP67+

    Sony Ult Field 1 has better ingress protection than the average portable speaker (IP67 vs IPX5).IP67 vs IPX5
  • 20 m longer Bluetooth range
    Sony Ult Field 1 has a longer Bluetooth range than the average portable speaker (30 m vs 10 m).
    Maximum Bluetooth range: 30.00 m.
    What it is: The farthest distance at which the Bluetooth link can remain usable.
    When it matters: When the source device may be far from the speaker.

    Importance: MEDIUM

    Good value: >= 10 m

    Sony Ult Field 1 has a longer Bluetooth range than the average portable speaker (30 m vs 10 m).30.00 m vs 10 m
  • 1 m deeper waterproof rating
    Sony Ult Field 1 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
    What it is: The maximum water depth the speaker is rated to withstand.
    When it matters: When the speaker may be submerged or used very close to water.

    Importance: MEDIUM

    Good value: >= 1 m

    Sony Ult Field 1 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).1 m vs 0 m
  • 40 Hz deeper bass extension
    Sony Ult Field 1 has deeper bass extension than the average portable speaker (20 Hz vs 60.00 Hz).
    Lower frequency-response endpoint: 20.00 Hz.
    What it is: The lowest audible frequency the speaker can reproduce.
    When it matters: When deeper bass extension matters.

    Importance: HIGH

    Good value: <= 60 Hz

    Sony Ult Field 1 has deeper bass extension than the average portable speaker (20 Hz vs 60.00 Hz).20.00 Hz vs 60.00 Hz
  • 1 more multipoint connections
    Sony Ult Field 1 has more multipoint connections than the average portable speaker (2 vs 1).
    Simultaneous Bluetooth devices: 2.
    What it is: The number of source devices that can stay connected at the same time.
    When it matters: When switching between several connected source devices matters.

    Importance: MEDIUM

    Good value: >= 2

    Sony Ult Field 1 has more multipoint connections than the average portable speaker (2 vs 1).2 vs 1
  • Has a noise-canceling microphone
    Sony Ult Field 1 has a noise-canceling microphone, while the average portable speaker does not have a noise-canceling microphone.
    Uses microphone noise/echo cancellation for calls or voice.
    What it is: Indicates whether the microphones can reduce surrounding noise during capture.
    When it matters: When calls or voice commands must remain clear around background noise.

    Importance: LOW

    Good value: yes

    Sony Ult Field 1 has a noise-canceling microphone, while the average portable speaker does not have a noise-canceling microphone.
  • 3 more adjustable EQ bands
    Sony Ult Field 1 has more adjustable EQ bands than the average portable speaker (3 vs 0).
    3 app eq bands.
    What it is: The number of adjustable equalizer frequency bands available in the app.
    When it matters: When fine-grained sound adjustment in the companion app matters.

    Importance: LOW

    Good value: >= 5 bands

    Sony Ult Field 1 has more adjustable EQ bands than the average portable speaker (3 vs 0).3 vs 0
  • Has an equalizer
    Sony Ult Field 1 has an equalizer, while the average portable speaker does not have an equalizer.
    Offers user-selectable EQ, tone adjustment, or sound presets.
    What it is: Shows whether the sound balance can be adjusted across frequency ranges.
    When it matters: When you want to adjust bass, midrange, or treble balance.

    Importance: LOW

    Good value: yes

    Sony Ult Field 1 has an equalizer, while the average portable speaker does not have an equalizer.
  • 40 Hz deeper bass extension
    Sony Ult Field 1 has deeper bass extension than the average portable speaker (20 Hz vs 60.00 Hz).
  • Has a noise-canceling microphone
    Sony Ult Field 1 has a noise-canceling microphone, while the average portable speaker does not have a noise-canceling microphone.
  • 10 W more audio output power
    Sony Ult Field 1 has more audio output power than the average portable speaker (30 W vs 20.00 W).
  • 20 m longer Bluetooth range
    Sony Ult Field 1 has a longer Bluetooth range than the average portable speaker (30 m vs 10 m).
  • 1 more multipoint connections
    Sony Ult Field 1 has more multipoint connections than the average portable speaker (2 vs 1).
  • Has a USB Type-C port
    Sony Ult Field 1 has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
  • 0.3 Bluetooth levels newer
    Sony Ult Field 1 has a newer Bluetooth version than the average portable speaker (5.3 vs 5.0).
  • Supports AAC Bluetooth audio
    Sony Ult Field 1 supports AAC Bluetooth audio, while the average portable speaker does not support AAC Bluetooth audio.
  • 5 W higher charging input power
    Sony Ult Field 1 has higher charging input power than the average portable speaker (15 W vs 10 W).
  • 300 mAh more battery capacity
    Sony Ult Field 1 has a larger battery capacity than the average portable speaker (2,900 mAh vs 2,600 mAh).
  • Better ingress protection
    Sony Ult Field 1 has better ingress protection than the average portable speaker (IP67 vs IPX5).
  • 1 m deeper waterproof rating
    Sony Ult Field 1 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
  • Resists accidental impacts
    Sony Ult Field 1 resists accidental impacts, while the average portable speaker lacks an impact-resistance rating.
  • Claims MIL-STD-810 compliance
    Sony Ult Field 1 claims MIL-STD-810 compliance, while the average portable speaker does not claim MIL-STD-810 compliance.
  • 3 more adjustable EQ bands
    Sony Ult Field 1 has more adjustable EQ bands than the average portable speaker (3 vs 0).
  • Has an equalizer
    Sony Ult Field 1 has an equalizer, while the average portable speaker does not have an equalizer.
  • Supports fast pairing
    Sony Ult Field 1 supports fast pairing, while the average portable speaker does not support fast pairing.
  • 2 more EQ presets
    Sony Ult Field 1 has more EQ presets than the average portable speaker (2 vs 0).
  • 4.7 cm shorter
    Sony Ult Field 1 is shorter than the average portable speaker (7.7 cm vs 12.4 cm).
  • Supports voice assistants
    Sony Ult Field 1 supports voice assistants, while the average portable speaker does not support voice assistants.
  • Supports firmware updates
    Sony Ult Field 1 supports firmware updates, while the average portable speaker does not support firmware updates.
  • 5 newer
    Sony Ult Field 1 was released more recently than the average portable speaker (2024 vs 2019).
  • 5 dB SPL lower maximum sound pressure
    Sony Ult Field 1 has a lower maximum sound pressure level than the average portable speaker (87 dB SPL vs 92.00 dB SPL).
    Sound pressure level: 87.00 dB.
  • Does not have a 3.5 mm AUX input
    Sony Ult Field 1 does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
    No built-in 3.5 mm AUX input.
  • 2 hours longer charging time
    Sony Ult Field 1 has a longer charging time than the average portable speaker (5 hours vs 3 hours).
  • 5 °C higher minimum operating temperature
    Sony Ult Field 1 has a higher minimum operating temperature than the average portable speaker (5 °C vs 0 °C).
  • 5 °C lower maximum operating temperature
    Sony Ult Field 1 has a lower maximum operating temperature than the average portable speaker (35 °C vs 40 °C).
  • 2 hours longer charging time
    Sony Ult Field 1 has a longer charging time than the average portable speaker (5 hours vs 3 hours).
    What it is: The time needed to recharge the battery fully.
    When it matters: When the speaker needs to be ready again quickly.

    Importance: MEDIUM

    Good value: <= 4 h

    Sony Ult Field 1 has a longer charging time than the average portable speaker (5 hours vs 3 hours).5 hours vs 3 hours
  • 5 dB SPL lower maximum sound pressure
    Sony Ult Field 1 has a lower maximum sound pressure level than the average portable speaker (87 dB SPL vs 92.00 dB SPL).
    Sound pressure level: 87.00 dB.
    What it is: The maximum acoustic loudness the speaker can produce.
    When it matters: When the speaker must play loudly in a large or outdoor space.

    Importance: HIGH

    Good value: >= 90 dB SPL

    Sony Ult Field 1 has a lower maximum sound pressure level than the average portable speaker (87 dB SPL vs 92.00 dB SPL).87.00 dB SPL vs 92.00 dB SPL
  • Does not have a 3.5 mm AUX input
    Sony Ult Field 1 does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
    No built-in 3.5 mm AUX input.
    What it is: Indicates whether a standard 3.5 mm analog audio socket is present.
    When it matters: When you need a reliable wired analog audio connection.

    Importance: LOW

    Good value: yes

    Sony Ult Field 1 does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
  • 5 °C higher minimum operating temperature
    Sony Ult Field 1 has a higher minimum operating temperature than the average portable speaker (5 °C vs 0 °C).
    What it is: The lowest ambient temperature recommended for normal operation.
    When it matters: When the speaker must work reliably in colder conditions.

    Importance: LOW

    Good value: <= -10 °C

    Sony Ult Field 1 has a higher minimum operating temperature than the average portable speaker (5 °C vs 0 °C).5 °C vs 0 °C
  • 5 °C lower maximum operating temperature
    Sony Ult Field 1 has a lower maximum operating temperature than the average portable speaker (35 °C vs 40 °C).
    What it is: The highest ambient temperature recommended for normal operation.
    When it matters: When reliable use in hot weather or direct sunlight matters.

    Importance: LOW

    Good value: >= 45 °C

    Sony Ult Field 1 has a lower maximum operating temperature than the average portable speaker (35 °C vs 40 °C).35 °C vs 40 °C

Graphic comparison of Sony Ult Field 1 and other products in the Portable Speakers category

Attribute category
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Third-party reviews

United Kingdom

(Reviews last updated: August 2026)

What customers like about Sony Ult Field 1?

  • Compact and lightweight design makes it highly portable
  • Excellent durability with an IP67 waterproof, dustproof, and shockproof rating
  • ULT button provides a punchy and significant bass boost for its size
  • Clear, detailed midrange and crisp vocals during low-to-medium volume listening
  • Versatile multi-way carry strap included for outdoor activities
  • Low audio latency when paired with iOS devices

What customers dislike about Sony Ult Field 1?

  • Battery life drains quickly at high volumes, lasting far less than the advertised 12 hours
  • Audio compression and slight distortion occur when played at maximum volume
  • Built-in microphone struggles with voice clarity and picking up commands
  • Lacks support for Sony's 'Party Connect' multi-speaker linking mode
  • Downmixes stereo content to mono when used as a single unit
  • The companion app feels basic and offers limited EQ adjustments

Expert reviews

W
whathifi.com
06/06/2024
Summary of the review
U
uk.pcmag.com
11/04/2024
Summary of the review
R
rtings.com
10/07/2024
Summary of the review
T
t3.com
01/01/2025
Summary of the review
T
trustedreviews.com
03/06/2025
Summary of the review
P
pcmag.com
11/04/2024
Summary of the review
M
me.pcmag.com
11/04/2024
Summary of the review
A
au.pcmag.com
12/04/2024
Summary of the review
F
forbes.com
02/09/2024
Summary of the review
M
mashable.com
11/04/2024
Summary of the review
R
rtings.com
10/07/2024
Summary of the review
R
rtings.com
13/06/2025
Summary of the review
R
rtings.com
11/06/2025
Summary of the review
R
rtings.com
10/07/2024
Summary of the review
C
computerbild.de
21/04/2024
Summary of the review
H
hifi-journal.de
19/07/2024
Summary of the review
H
hifi.de
20/07/2024
Summary of the review
S
stereoguide.com
25/06/2024
Summary of the review
F
frandroid.com
22/05/2024
Summary of the review
L
leclaireur.fnac.com
18/07/2024
Summary of the review
L
lesnumeriques.com
23/08/2024
Summary of the review
R
rtl.be
25/05/2024
Summary of the review
R
revistagq.com
13/05/2024
Summary of the review
P
pisapapeles.net
13/03/2025
Summary of the review
C
comunidad.tecnogaming.com
14/02/2025
Summary of the review
T
tuttotech.net
28/04/2026
Summary of the review
I
id.nl
16/06/2024
Summary of the review
A
androidworld.nl
15/06/2024
Summary of the review
T
tweakers.net
01/02/2026
Summary of the review
E
expert.nl
07/08/2025
Summary of the review

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