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 3 ranks #64, rated 3.4/5, and costs $208, which makes this an easy call rather than a real tradeoff.
Why pick the Tronsmart T8: 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.
Why pick the Sony ULT Field 3: IP67 rated, dustproof and water resistant. The tradeoff: Sounds a bit hollow, a bit boosted in the treble.
Buy the Tronsmart T8. It is rated higher for sound quality than the Sony ULT Field 3 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 T8 | Sony ULT Field 3 | |
|---|---|---|
| Price | $49.99 | $208.00 |
| Ranked | #52 of 150 in Medium Size Portable Bluetooth Speakers | #64 of 150 in Medium Size Portable Bluetooth Speakers |
| Amplifier Power | 40W | 27W |
| App | Yes (Tronsmart) | Yes |
| Aux Input | Yes | No |
| Battery Life | 18 hours at 50% volume, lights off (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.2 |
| Charging Time | 4.5 hours | - |
| Dimensions | 8.6”H x 3.2”W x 3.2”D (218 x 82 x 82 mm) | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) |
| Drivers | 2x upward firing full-range drivers + 1x woofer + 2x passive radiators | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| EQ | Yes (app) | Yes (App + ULT button) |
| 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 shoulder strap) |
| TWS | Yes | Yes |
| Weight | 1.8 lbs (0.80 kg) | 2.6 lbs (1.2 kg) |
| Bluetooth Codecs | - | SBC, AAC, LDAC |
| Built-in Microphone | - | Yes |
| Party Mode | - | Yes (Party Connect up to 100 speakers) |
| Power Bank | - | Yes (USB-C, 5V/1.5A) |
| Stereo | - | Yes |
| Digital Aux Input | - | No |
Related Speaker Comparisons
More top alternatives to 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 JBL Charge Essential 2
- See all 33 comparisons
Sony ULT Field 3: $208.00 Amazon eBay
Older models: the Sony XB33 (ranked lower, rated 3.4/5), the Sony SRS-XE300 (ranked lower, rated 2.8/5) and the Sony SRS-XB30 (ranked lower, rated 2.6/5).
Pros: IP67 rated, dustproof and water resistant. 24 hour battery life. App with 10-band EQ. Party Connect with up to 100 speakers. USB-C in/out for charging your phone.
Cons: Sounds a bit hollow, a bit boosted in the treble. Custom EQ and the ULT bass-boost button can’t be used together: turning on ULT disables the EQ. Bass is very weak with ULT off. Lost to the JBL Charge 6 in a side-by-side comparison despite being the larger speaker.
Full Sony ULT Field 3 review and specifications →
| Amplifier Power | 27W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| EQ | Yes (App + ULT button) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 2.6 lbs (1.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Field 3 vs Bose Soundlink Mini
- Sony ULT Field 3 vs Xiaomi Mi Portable
- Sony ULT Field 3 vs Sony XB33
- Sony ULT Field 3 vs Bose Soundlink Mini 2
- Sony ULT Field 3 vs Soundcore 3/Soundcore Select 2
- Sony ULT Field 3 vs Bose Portable Smart Speaker
- Sony ULT Field 3 vs Huawei Sound Joy 2
- Sony ULT Field 3 vs Turtlebox Ranger
- See all 138 comparisons