Short answer: the Tronsmart T8. It ranks #52 of 150 medium speakers by sound quality, rated 3.6/5, at $49.99; the Sony ULT Field 1 ranks #86, rated 3.1/5, and costs $138, so there is not much of a tradeoff to weigh.
What the Tronsmart T8 does well: Two upward firing drivers, a woofer and two passive radiators spread sound evenly around the speaker, so placement matters less. The tradeoff: Against the Xiaomi Sound Outdoor, listeners in Mateusz Cholewa’s comparison found the T8 harsh and tiring, and Techder Audios’ test showed the Xiaomi Sound Party with deeper, heavier bass.
The case for the Sony ULT Field 1: IP67 rated, survives drops and 1m submersion. The tradeoff: Upper midrange peak, rolled off treble.
Buy the Tronsmart T8. It is rated higher for sound quality than the Sony ULT Field 1 and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Tronsmart T8 | Sony ULT Field 1 | |
|---|---|---|
| Price | $49.99 | $138.00 |
| Ranked | #52 of 150 in Medium Size Portable Bluetooth Speakers | #86 of 150 in Medium Size Portable Bluetooth Speakers |
| Amplifier Power | 40W | - |
| App | Yes (Tronsmart) | Yes |
| Aux Input | Yes | No |
| Battery Life | 18 hours at 50% volume, lights off (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Charging Time | 4.5 hours | - |
| Dimensions | 8.6”H x 3.2”W x 3.2”D (218 x 82 x 82 mm) | 8.1” x 3” x 3” (206 x 77 x 76 mm) |
| Drivers | 2x upward firing full-range drivers + 1x woofer + 2x passive radiators | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| EQ | Yes (app) | Yes |
| Frequency Response | 56Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX7 | IP67 |
| Lights | Yes | - |
| MicroSD Playback | Yes | - |
| Omnidirectional | Pointing up | No |
| Power Input | USB-C | USB-C |
| Strap | Yes (lanyard) | Yes (detachable strap) |
| TWS | Yes | Yes |
| Weight | 1.8 lbs (0.80 kg) | 1.4 lbs (650 g) |
| Built-in Microphone | - | Yes |
| Party Mode | - | Yes (Party Connect up to 100 speakers) |
| Power Bank | - | No |
| Stereo | - | No |
| Bluetooth Codecs | - | AAC, SBC |
| Digital Aux Input | - | No |
Related Speaker Comparisons
More worthwhile head-to-heads for Tronsmart T8:
- Soundcore Motion 300 vs Tronsmart T8
- JBL Charge 6 vs Tronsmart T8
- JBL Flip 6 vs Tronsmart T8
- JBL Flip 7 vs Tronsmart T8
- Xiaomi Sound Party vs Tronsmart T8
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 T8: $49.99 Best Buy Tronsmart eBay
Pros: Two upward firing drivers, a woofer and two passive radiators spread sound evenly around the speaker, so placement matters less. In AudioPro Reviews’ and Dresser’s comparisons most listeners preferred it to the JBL Flip 6, JBL Flip 7 and Ultimate Ears Megaboom 3 for its fuller body and less fatiguing treble, and Audioreviews.org found it stayed clean at maximum volume. It is rated for 40W, with IPX7 waterproofing, an 18 hour battery rating, app EQ, lights, a volume wheel, aux input, TF card playback, a lanyard and stereo pairing.
Cons: Against the Xiaomi Sound Outdoor, listeners in Mateusz Cholewa’s comparison found the T8 harsh and tiring, and Techder Audios’ test showed the Xiaomi Sound Party with deeper, heavier bass. Josh’s Gadgets and More preferred the cheaper Vortex Blast for smoother highs and deeper bass. Bass is rated only down to 56Hz.
Full Tronsmart T8 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes (Tronsmart) |
| Aux Input | Yes |
| Battery Life | 18 hours at 50% volume, lights off (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Version | 5.3 |
| Charging Time | 4.5 hours |
| Dimensions | 8.6”H x 3.2”W x 3.2”D (218 x 82 x 82 mm) |
| Drivers | 2x upward firing full-range drivers + 1x woofer + 2x passive radiators |
| EQ | Yes (app) |
| Frequency Response | 56Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Lights | Yes |
| MicroSD Playback | Yes |
| Omnidirectional | Pointing up |
| Power Input | USB-C |
| Strap | Yes (lanyard) |
| TWS | Yes |
| Weight | 1.8 lbs (0.80 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- AudioPro Reviews: Tronsmart T8 vs JBL Flip 6 | Which one sounds BETTER?
- Dresser: JBL Flip 7 vs Tronsmart T8 Bluetooth speaker sound test
- Dresser: Tronsmart T8 vs UE mega boom 3 sound test
- Mateusz Cholewa: Tronsmart T8 vs Xiaomi Sound Outdoor & Opinion in Subtitles More from Mateusz Cholewa →
- Techder Audios: Xiaomi Sound Party 50w VS Tronsmart T8 More from techderaudios →
- Techder Audios: Xdobo X8 IV VS Tronsmart T8
- Josh’s Gadgets and More: Tronsmart T8 vs Vortex Blast
- Audioreviews.org: Tronsmart T8 Portable Bluetooth 5.3 Speaker Review
- Head-to-Head Comparisons
- Tronsmart T8 vs Tribit Stormbox Flow
- Tronsmart T8 vs JBL Charge 4
- Tronsmart T8 vs W-King D320
- Tronsmart T8 vs Xiaomi Sound Outdoor
- Tronsmart T8 vs Soundcore 3/Soundcore Select 2
- Tronsmart T8 vs Earfun Uboom Slim
- Tronsmart T8 vs JBL Charge Essential 3 SE
- Tronsmart T8 vs Sony ULT Field 3
- See all 33 comparisons
Sony ULT Field 1: $138.00 Amazon eBay
Older models: the Sony XB23 (ranked higher, rated 3.3/5) and the Sony SRS-XB20 (ranked lower, rated 2.8/5).
Pros: IP67 rated, survives drops and 1m submersion. Real-world battery around 28+ hours with ULT (bass boost) mode off. Stereo-pairs with a second ULT Field 1.
Cons: Upper midrange peak, rolled off treble
Full Sony ULT Field 1 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.1” x 3” x 3” (206 x 77 x 76 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 1.4 lbs (650 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Field 1 vs JBL Grip
- Sony ULT Field 1 vs Treblab HD77
- Sony ULT Field 1 vs Tribit Xsound Go
- Sony ULT Field 1 vs Tronsmart Mirtune S100
- Sony ULT Field 1 vs KEF Muo gen2
- Sony ULT Field 1 vs Tronsmart Mirtune C3
- Sony ULT Field 1 vs Tribit Xsound Surf
- Sony ULT Field 1 vs Sonos Roam
- See all 133 comparisons