Tronsmart Bang 2 vs Sony ULT Field 5

Last updated: September 30, 2026

Short answer: the Tronsmart Bang 2. It ranks #45 of 85 large speakers by sound quality, rated 3.6/5, at $109.99; the Sony ULT Field 5 ranks #46, rated 3.5/5, and costs $348, which makes this an easy call rather than a real tradeoff.

Tronsmart Bang 2 vs Sony ULT Field 5

Why pick the Tronsmart Bang 2: In Jagist’s side by side tests, the Bang 2 (after its firmware update) was picked over the Soundcore Boom 2 and over the JBL Xtreme 5, which distorted at high volume, and it kept its bass above 40% volume where the Tribit Stormbox Lava fell apart. The tradeoff: Verdicts against the Boom 2 and the Lava were split: Dominik Reviews preferred the Boom 2, and several listeners found the Bang 2’s mids muffled and its highs subdued without custom EQ.

Why pick the Sony ULT Field 5: 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. Watch for: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth.

Buy the Tronsmart Bang 2. It is rated higher for sound quality than the Sony ULT Field 5 and costs less, so only choose the other one for a particular feature it does better.

Looking for alternatives? See the complete Portable Bluetooth rankings.

Specifications Side By Side

Tronsmart Bang 2 Sony ULT Field 5
Price$109.99$348.00
Ranked#45 of 85 in Large Size Portable Bluetooth Speakers#46 of 85 in Large Size Portable Bluetooth Speakers
Amplifier Power90W27W
AppYes (Tronsmart)Yes
Aux InputYesYes
Battery Life26 hours at 50% volume, lights off (Manufacturer specified)25 hours (Manufacturer specified)
BluetoothYesYes
Bluetooth CodecsSBCSBC, AAC, LDAC
Bluetooth Version5.35.3
Charging Time4.5 hours-
Dimensions8.2”H x 15.3”W x 6.2”D (208 x 389 x 158 mm)12.6” x 5.7” x 4.9” (320 x 144 x 125 mm)
Drivers1x racetrack mid-woofer + 2x tweeters + 2x passive radiators2x 46mm tweeters + 1x 79mm x 107mm woofer
EQYes (app)Yes (App + ULT button)
Frequency Response53Hz - 20kHz (Manufacturer specified)-
IP RatingIPX6IP67
LightsYes-
Maximum SPL105dB (Manufacturer specified)-
MicroSD PlaybackYes-
OmnidirectionalNoNo
Party ModeYes (multi-speaker pairing)Yes (Party Connect up to 100 speakers)
Power BankYes (USB-C)Yes (USB-C)
Power InputUSB-CUSB-C
StereoPartiallyYes
StrapYes (detachable shoulder strap)Yes (detachable shoulder strap)
TWSYesYes
USB PlaybackYes-
Weight5.8 lbs (2.63 kg)7.3 lbs (3.3 kg)
Built-in Microphone-Yes
Digital Aux Input-No

More top alternatives to Tronsmart Bang 2:

Prices on this page were last checked September 30, 2026 at 2:57 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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The Two Speakers In Full

Tronsmart Bang 2: $109.99 Best Buy Tronsmart eBay

Tronsmart Bang 2 ranking card

Pros: In Jagist’s side by side tests, the Bang 2 (after its firmware update) was picked over the Soundcore Boom 2 and over the JBL Xtreme 5, which distorted at high volume, and it kept its bass above 40% volume where the Tribit Stormbox Lava fell apart. Listeners also mostly preferred it to the JBL Xtreme 4. A racetrack woofer, two tweeters and two passive radiators are rated for 90W and 105dB. Tronsmart rates the battery at 26 hours at half volume with the lights off, and it adds IPX6 water resistance, a handle plus a detachable shoulder strap, app EQ, light effects, stereo and multi-speaker pairing, aux, TF card and USB playback, and a USB-C power bank.

Cons: Verdicts against the Boom 2 and the Lava were split: Dominik Reviews preferred the Boom 2, and several listeners found the Bang 2’s mids muffled and its highs subdued without custom EQ. Next to the Tronsmart Fiitune X30 it turned into a jumble of sound near full volume, and the EarFun UBoom X clearly beat it. It needed a firmware update to sound its best, and at 2.63 kg it is heavy for its size.

Amplifier Power90W
AppYes (Tronsmart)
Aux InputYes
Battery Life26 hours at 50% volume, lights off (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC
Bluetooth Version5.3
Charging Time4.5 hours
Dimensions8.2”H x 15.3”W x 6.2”D (208 x 389 x 158 mm)
Drivers1x racetrack mid-woofer + 2x tweeters + 2x passive radiators
EQYes (app)
Frequency Response53Hz - 20kHz (Manufacturer specified)
IP RatingIPX6
LightsYes
Maximum SPL105dB (Manufacturer specified)
MicroSD PlaybackYes
OmnidirectionalNo
Party ModeYes (multi-speaker pairing)
Power BankYes (USB-C)
Power InputUSB-C
StereoPartially
StrapYes (detachable shoulder strap)
TWSYes
USB PlaybackYes
Weight5.8 lbs (2.63 kg)

Sony ULT Field 5: $348.00 Amazon eBay

Sony ULT Field 5 ranking card

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

Pros: 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.

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)