Short answer: the Sony ULT Field 5 on measured sound quality, the Tronsmart Force Max on price. The Sony ULT Field 5 ranks #46 of 85 large speakers, rated 3.5/5, at $348. The Tronsmart Force Max ranks #63, rated 3.0/5, at $119.99, $228.01 cheaper.
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.
What the Tronsmart Force Max does well: Two woofers, two tweeters and two passive radiators on opposite faces spread its 80W of sound all around it. The catch: Sonido Pesado found the Tronsmart Halo 100 clearly better, with clearer mids and highs.
Buy the Sony ULT Field 5 if sound quality is the priority over the price, or the Tronsmart Force Max if the price is the priority over sound quality.
There is a real battery-life gap here: the Sony ULT Field 5 is rated for 25 hours, the Tronsmart Force Max only 13 hours.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Sony ULT Field 5 | Tronsmart Force Max | |
|---|---|---|
| Price | $348.00 | $119.99 |
| Ranked | #46 of 85 in Large Size Portable Bluetooth Speakers | #63 of 85 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 25 hours (Manufacturer specified) | 13 hours at 50% volume (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | - |
| Bluetooth Version | 5.3 | 5.0 |
| Built-in Microphone | Yes | Yes |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) | 6”H x 10.2”W x 3.3”D (153 x 258 x 85 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer | 2x woofers + 2x tweeters + 2x passive radiators (front and rear) |
| EQ | Yes (App + ULT button) | Yes (3 presets) |
| IP Rating | IP67 | IPX6 |
| Party Mode | Yes (Party Connect up to 100 speakers) | - |
| Power Bank | Yes (USB-C) | Yes (USB-C) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No (front/rear drivers) |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| Weight | 7.3 lbs (3.3 kg) | 5.6 lbs (2.54 kg) |
| Amplifier Power | 27W | 80W |
| Digital Aux Input | No | - |
| Strap | Yes (detachable shoulder strap) | Yes (built-in strap) |
| Charging Time | - | 4 to 5 hours |
| Frequency Response | - | 20Hz - 20kHz (Manufacturer specified) |
| MicroSD Playback | - | Yes |
| USB Playback | - | Yes |
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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
Sony ULT Field 5: $348.00 Amazon eBay
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.
Full Sony ULT Field 5 review and specifications →
| Amplifier Power | 27W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm 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) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 7.3 lbs (3.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Danny Pops: Don’t TOUCH that ULT Button! Sony ULT Field 5 Review More from DannyPops →
- Mark Ellis Reviews: Sony just changed summer sound 🤨 | Sony ULT Field 5 & 3 Review
- Dominik Reviews: Sony ULT Field 5 vs JBL Xtreme 4 - Outdoor Sound Test - Sony shines or not? More from Dominik Reviews →
- Joy & Oluv’Sone: Sony ULT Field 5 vs Anker SoundCore Boom 2 - listening test More from Oluv’Sone →
- Mateusz Cholewa: SONY ULT Field 5 vs BOGASING S8 PRO MAX More from Mateusz Cholewa →
- Head-to-Head Comparisons
Tronsmart Force Max: $119.99 Tronsmart eBay
Pros: Two woofers, two tweeters and two passive radiators on opposite faces spread its 80W of sound all around it. IPX6 water resistance, a 13 hour battery rating at half volume, a retractable strap, aux input, TF card and USB playback, a USB-C power bank, three EQ presets, a speakerphone microphone and stereo pairing.
Cons: Sonido Pesado found the Tronsmart Halo 100 clearly better, with clearer mids and highs. The Force Max’s mids are recessed and it audibly distorts near full volume, which Dominik Reviews put down to a poorly set limiter, and listeners preferred the Sony SRS-XB43 for balance. There is no app, it uses the older Bluetooth 5.0, and it weighs 2.54 kg.
Full Tronsmart Force Max review and specifications →
| Amplifier Power | 80W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 13 hours at 50% volume (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Charging Time | 4 to 5 hours |
| Dimensions | 6”H x 10.2”W x 3.3”D (153 x 258 x 85 mm) |
| Drivers | 2x woofers + 2x tweeters + 2x passive radiators (front and rear) |
| EQ | Yes (3 presets) |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | Yes |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | No (front/rear drivers) |
| Strap | Yes (built-in strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 5.6 lbs (2.54 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Sonido Pesado: TRONSMART HALO VS FORCE MAX
- Sonido Pesado: Reacciono al sonido, tronsmart FORCE MAX vs SONY XB 43
- Dominik Reviews: Tronsmart Force Max vs Tronsmart Bang - Distortion vs Boom? - Sound Test More from Dominik Reviews →
- Audio y Mas: Tronsmart Force Max vs Bang Mini
- NozeeD StudiO: JBL Xtreme 3 vs Tronsmart Force Max Comparison
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