Average score
Product 1: Soundcore Boom Go 3i
3.8
Product 2: Sony ULT Field 5 Speaker
4.0
App reliability
Product 1: Soundcore Boom Go 3i
4.4

App feedback is positive for capability. Reviews describe the Soundcore app as robust and function-rich, with EQ, lighting, alarms, timers, and other controls.

Product 2: Sony ULT Field 5 Speaker
3.5

One review found the app mostly well-designed, while another found the setup and update flow frustrating.

Backwards compatibility
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
4.5

Party Connect compatibility extends to older Sony portable speakers, making expansion inside Sony’s ecosystem easier.

Battery life (if portable)
Product 1: Soundcore Boom Go 3i
4.2

Battery life is a repeated strength. Reviews cite the 24-hour rating, Eco Mode figures, near-6-hour maximum-volume/lighted testing, and real-world use around 12 hours with lights on.

Product 2: Sony ULT Field 5 Speaker
4.1

Reviews repeatedly cite roughly 25 hours in lighter-use conditions, with shorter runtime implied once output and extras increase.

Bluetooth codec support
Product 1: Soundcore Boom Go 3i
3.5

Codec evidence is limited but direct: one review states Bluetooth 6.0 with SBC and AAC support. No review mentions higher-end codecs.

Product 2: Sony ULT Field 5 Speaker
4.8

Bluetooth support for SBC, AAC, and LDAC is consistently called out across reviews.

Bluetooth connection stability
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
4.5

The speaker emphasizes stable Bluetooth behavior, with a stability-first mode and positive comments about reliable connection behavior.

Bluetooth range
Product 1: Soundcore Boom Go 3i
4.0

Bluetooth range receives one specific mention: a comparison cites about 30 m range, which is solid for this speaker class.

Product 2: Sony ULT Field 5 Speaker
4.0

Range is generally described as good, though one reviewer warns LDAC does not carry as far as AAC/SBC.

Cabinet construction / bracing
Product 1: Soundcore Boom Go 3i
4.0

Build construction is described as thick, dense, solid, and nicely made across several reviews. Reviewers treat the rugged body as more important than premium materials.

Product 2: Sony ULT Field 5 Speaker
No score yet
Charging time
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
4.1

Quick charging is a real strength, with reviewers repeatedly citing about 100 minutes of playback from a 10-minute charge.

Cohesive presentation
Product 1: Soundcore Boom Go 3i
4.0

Overall presentation is positive for the size: reviewers call it enjoyable after EQ, good sounding, versatile, and solid, while keeping expectations realistic for a small mono speaker.

Product 2: Sony ULT Field 5 Speaker
4.2

One review describes the overall sound as consistent and cohesive even if it is not the most resolving.

Control button responsiveness
Product 1: Soundcore Boom Go 3i
4.0

Button responsiveness has limited direct support, but one hands-on review shows lighting changes working on the fly from the speaker controls.

Product 2: Sony ULT Field 5 Speaker
4.2

Controls cover the basics well, but the dedicated ULT button feels better than the softer rubberized keys.

Design and aesthetics
Product 1: Soundcore Boom Go 3i
3.6

Design feedback is mixed. Reviewers like the compact look, lights, and screen, but several dislike that it cannot stand upright without help.

Product 2: Sony ULT Field 5 Speaker
4.0

The design is rugged and clean but visually plain to some reviewers, with finish and lighting doing much of the personality work.

Detail retrieval
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
3.0

Fine detail is not a strength here, and upper-register elements can get lost in the mix.

Distortion at high volume
Product 1: Soundcore Boom Go 3i
3.5

High-volume behavior is supported by one review: bass becomes less noticeable while the speaker prioritizes clarity, so the tradeoff is reduced low-end weight rather than obvious harshness.

Product 2: Sony ULT Field 5 Speaker
4.3

Reviews generally say it stays controlled at high output, with little obvious distortion even when bass boost is active.

Drop resistance durability
Product 1: Soundcore Boom Go 3i
4.5

Drop durability is a clear strength. Reviews cite one-meter or 3.28-foot drop protection, rugged materials, and one hands-on drop test with no functional damage.

Product 2: Sony ULT Field 5 Speaker
4.2

One reviewer explicitly says the speaker still looked good after bumps and knocks, reinforcing the rugged-build theme.

Dust resistance rating
Product 1: Soundcore Boom Go 3i
5.0

Dust protection is consistently supported through the IP68 rating. Multiple reviews explicitly call it dustproof or dust resistant.

Product 2: Sony ULT Field 5 Speaker
5.0

Dust resistance is a clear strength, with direct IP67-style outdoor protection references.

Dynamic headroom
Product 1: Soundcore Boom Go 3i
3.8

Dynamic headroom is adequate for the size but not unlimited. One review mentions headroom when pushed louder, while another notes bass drops at higher volumes.

Product 2: Sony ULT Field 5 Speaker
3.4

It gets loud, but review evidence also points to compression and reduced openness once volume is pushed harder.

Energy efficiency
Product 1: Soundcore Boom Go 3i
4.2

Energy-saving behavior is tied to Eco Mode. Reviews say it turns off lights or lowers bass and can stretch playback to around 40 hours at moderate volume.

Product 2: Sony ULT Field 5 Speaker
2.8

One reviewer specifically criticized the party lighting for poor power efficiency.

EQ customization
Product 1: Soundcore Boom Go 3i
4.3

EQ customization is one of the strongest feature areas. Reviews repeatedly mention app EQ controls, presets, custom EQ, and BassUp 2.0.

Product 2: Sony ULT Field 5 Speaker
4.1

The app provides a 10-band EQ, though reviewers note it cannot fully replace or match the built-in ULT presets.

Everyday usability
Product 1: Soundcore Boom Go 3i
4.3

Everyday usability is strong for outdoor and casual use. Reviewers emphasize easy carry, backpack or bike attachment, and practical use in parks, hikes, errands, and travel.

Product 2: Sony ULT Field 5 Speaker
4.5

Review evidence frames the speaker as practical for regular indoor/outdoor use, not just occasional parties.

Float capability
Product 1: Soundcore Boom Go 3i
2.0

Float capability is a weakness. Two reviews say it does not float upright or remain usable in a pool the way the larger Boom 3i can.

Product 2: Sony ULT Field 5 Speaker
No score yet
Frequency response balance
Product 1: Soundcore Boom Go 3i
3.8

Frequency balance is generally good for the size. Reviews describe respectable bass, balanced or fairly flat sound, and strong mids, though bass depth is limited.

Product 2: Sony ULT Field 5 Speaker
3.7

The tuning is engaging but not neutral, with bass emphasis often overshadowing mids and highs even though some heard a fairly balanced baseline.

Google
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
4.5

Google Fast Pair support is explicitly mentioned.

Handle or strap quality
Product 1: Soundcore Boom Go 3i
4.2

The strap is a major usability strength. Reviews praise the flexible, sturdy, two-mode design for attaching the speaker to backpacks, handlebars, poles, and other surfaces.

Product 2: Sony ULT Field 5 Speaker
3.8

The included strap is useful and solid, but attachment convenience is mixed depending on the reviewer.

Inter-speaker connectivity
Product 1: Soundcore Boom Go 3i
3.8

Inter-speaker connectivity is useful but uneven. Reviews cite TWS, stereo pairing, and Auracast, but also note incompatibility with PartyCast speakers and some JBL Auracast attempts.

Product 2: Sony ULT Field 5 Speaker
4.6

Stereo pairing and large-scale Party Connect support are recurring strengths for bigger setups.

Latency with TV (lip sync)
Product 1: Soundcore Boom Go 3i
4.5

Latency support is limited but positive. Two reviews say latency is not an issue when watching videos on a phone.

Product 2: Sony ULT Field 5 Speaker
No score yet
LED lighting effects
Product 1: Soundcore Boom Go 3i
4.4

LED lighting is praised more than expected for this size. Reviews call out RGB, music sync, visibility, ambient modes, and useful night or safety applications.

Product 2: Sony ULT Field 5 Speaker
4.5

LED effects are bright and customizable, adding obvious party appeal.

Lighting effects
Product 1: Soundcore Boom Go 3i
4.4

Lighting effects are broadly praised. Reviews mention beat-synced modes, ambient modes, color customization, and enough brightness to be visible and useful.

Product 2: Sony ULT Field 5 Speaker
4.2

The lighting is designed to pulse with the music and reinforce the speaker’s party identity.

Loudness / maximum volume
Product 1: Soundcore Boom Go 3i
4.0

Loudness is good for the size. Reviewers describe 15W output, 92 dB specs, decent outdoor volume, louder output than some rivals, and suitability for small groups rather than parties.

Product 2: Sony ULT Field 5 Speaker
4.8

High output is one of the clearest strengths, with multiple reviewers emphasizing how loud and party-ready it gets.

Low-volume performance
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
4.2

At low listening levels, one reviewer still found the sound full and satisfying at close range.

Microphone
Product 1: Soundcore Boom Go 3i
1.8

Microphone-related performance is mixed. Reviews say there is no built-in call microphone, but the app can use a phone as a microphone for voice amplification.

Product 2: Sony ULT Field 5 Speaker
3.5

The speaker includes microphones for calls, but the reviews do not go deep on call quality.

Multi-speaker pairing reliability
Product 1: Soundcore Boom Go 3i
3.6

Multi-speaker reliability is mixed. Pairing with another Boom Go 3i or compatible Auracast speakers works in some reviews, but PartyCast and some JBL pairing attempts are drawbacks.

Product 2: Sony ULT Field 5 Speaker
4.2

One reviewer explicitly describes Party Connect as more stable and easier to use than a competing multi-speaker system.

Multipoint connectivity
Product 1: Soundcore Boom Go 3i
4.5

Multipoint support is directly mentioned in two reviews: the speaker can connect to two Bluetooth devices at the same time so two people can share DJ control.

Product 2: Sony ULT Field 5 Speaker
4.7

Two-device multipoint pairing is repeatedly called out across reviews.

Omnidirectional sound
Product 1: Soundcore Boom Go 3i
2.0

Omnidirectional sound is not supported. One review describes a frontward-firing driver with passive radiators, pointing to directional playback rather than 360-degree sound.

Product 2: Sony ULT Field 5 Speaker
2.0

One reviewer specifically notes that this is not a 360-degree or omnidirectional speaker.

On-device controls
Product 1: Soundcore Boom Go 3i
4.0

On-device controls are simple and useful. Reviews mention top buttons for volume and playback plus physical controls that can manage music or lighting without opening the app.

Product 2: Sony ULT Field 5 Speaker
4.2

The on-speaker controls cover the main actions clearly and are easy to access.

Power bank function
Product 1: Soundcore Boom Go 3i
4.0

The power-bank function is consistently treated as useful emergency backup. Reviews note USB-C phone charging, a 4,800mAh battery, and practical top-ups rather than full power-bank replacement.

Product 2: Sony ULT Field 5 Speaker
4.5

The USB-C port can charge external devices, and multiple reviews present that as a meaningful convenience feature.

Price / value for money
Product 1: Soundcore Boom Go 3i
4.4

Value is one of the clearest strengths. Reviewers cite pricing around $60-$80, frequent sale pricing, and a feature set that undercuts or outfeatures several small rivals.

Product 2: Sony ULT Field 5 Speaker
4.2

Direct value comments are favorable, describing the speaker as well-priced or affordable for what it offers.

Privacy and data
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
4.2

One reviewer specifically praised the lack of smart-speaker creep from a privacy/security angle.

Setup simplicity
Product 1: Soundcore Boom Go 3i
4.5

Setup is simple in the reviews that cover it. One says pairing is easy, while another calls the pairing process real simple.

Product 2: Sony ULT Field 5 Speaker
4.2

Basic pairing is described as quick and uncomplicated.

Smart assistant integration (Alexa
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
1.5

One reviewer explicitly says it is not a smart speaker, so assistant integration is essentially absent.

Smart features
Product 1: Soundcore Boom Go 3i
4.6

Smart extras are unusually broad for the size. Reviews mention button remapping, workout timer, emergency alarm, voice amplifier, sound effects, lighting controls, and Find Device.

Product 2: Sony ULT Field 5 Speaker
4.4

Lighting control, EQ, DJ tools, and sound field optimization give it a robust feature set for a portable speaker.

Speakerphone quality
Product 1: Soundcore Boom Go 3i
1.0

Speakerphone quality is effectively absent because reviews say there is no built-in microphone or speakerphone for calls.

Product 2: Sony ULT Field 5 Speaker
No score yet
Status indicators
Product 1: Soundcore Boom Go 3i
4.3

Status indicators are useful. Reviews repeatedly highlight the screen or LED display for battery percentage, mode, Bluetooth, BassUp, or charging status.

Product 2: Sony ULT Field 5 Speaker
4.0

The speaker provides direct battery-status feedback, which adds convenience in daily use.

Stereo imaging accuracy
Product 1: Soundcore Boom Go 3i
No score yet
Product 2: Sony ULT Field 5 Speaker
2.9

It offers some stereo capability, but several reviewers say separation and stereo effect remain limited.

USB-C charging
Product 1: Soundcore Boom Go 3i
4.0

USB-C support is present for charging and power-bank output. Reviews mention USB-C charging and using the port to charge another device.

Product 2: Sony ULT Field 5 Speaker
4.5

USB-C charging is explicitly mentioned for recharging the speaker.

Value for money
Product 1: Soundcore Boom Go 3i
4.4

Value-for-money evidence overlaps with price/value: reviewers repeatedly say the speaker is a strong deal, big bang for the buck, or a good buy at sale pricing.

Product 2: Sony ULT Field 5 Speaker
3.7

Value looks more mixed at varying street prices, with one review calling it overpriced and another calling it not too expensive.

Voice clarity
Product 1: Soundcore Boom Go 3i
4.0

Voice clarity is positive where discussed. Two reviews say vocals are well pronounced thanks to emphasis in the mids.

Product 2: Sony ULT Field 5 Speaker
3.7

Vocal clarity is serviceable but inconsistent, with some reviewers hearing good cut-through and others hearing roughness or masked mids.

Water resistance rating
Product 1: Soundcore Boom Go 3i
5.0

Water resistance is a standout durability point. Every review that discusses protection cites IP68, waterproofing, or water resistance.

Product 2: Sony ULT Field 5 Speaker
4.8

Water resistance is a core strength, with repeated IP67 or IP66/IP67-style mentions for outdoor use.

Weight convenience
Product 1: Soundcore Boom Go 3i
4.3

Weight and portability are strong. Reviews cite the 380g weight, small footprint, palm-size form, and easy bag/backpack carry.

Product 2: Sony ULT Field 5 Speaker
2.8

Multiple reviews flag the weight as noticeable, bulky, or less bag-friendly than smaller portable speakers.

Wired input
Product 1: Soundcore Boom Go 3i
1.0

Wired input is not available. Two reviews state the USB-C port is charging-only and cannot be used as a wired audio connection.

Product 2: Sony ULT Field 5 Speaker
4.3

A 3.5 mm analog/AUX input is repeatedly cited as a useful advantage.