Short answer: the Tronsmart Force Max. Both are rated 3.0/5 for sound quality (#63 and #61 of 85 large speakers), and the Tronsmart Force Max costs $119.99 against $249.99 for the Marshall Stockwell III, so with nothing between them on sound quality, price settles it.
The case for the Tronsmart Force Max: Two woofers, two tweeters and two passive radiators on opposite faces spread its 80W of sound all around it. The tradeoff: Sonido Pesado found the Tronsmart Halo 100 clearly better, with clearer mids and highs.
The case for the Marshall Stockwell III: 40+ hour battery life with a user-replaceable battery, strap, sleeve and grilles. Watch for: Highs are recessed by default and need the treble control maxed to compensate, still lacking detail even then.
Buy the Tronsmart Force Max. Both are rated the same for sound quality, and it costs $130 less than the Marshall Stockwell III.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Tronsmart Force Max | Marshall Stockwell III | |
|---|---|---|
| Price | $119.99 | $249.99 |
| Ranked | #63 of 85 in Large Size Portable Bluetooth Speakers | #61 of 85 in Large Size Portable Bluetooth Speakers |
| Amplifier Power | 80W | 44W |
| App | No | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 13 hours at 50% volume (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.3 |
| 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) | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) |
| Drivers | 2x woofers + 2x tweeters + 2x passive radiators (front and rear) | 1x 3” woofer, 2x 1.75” wide-band drivers |
| EQ | Yes (3 presets) | Yes (parametric, via app) |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 54Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX6 | IP55 |
| MicroSD Playback | Yes | - |
| Omnidirectional | Yes | Yes |
| Power Bank | Yes (USB-C) | Yes |
| Power Input | USB-C | USB-C |
| Stereo | No (front/rear drivers) | Partially |
| Strap | Yes (built-in strap) | Yes (detachable strap) |
| TWS | Yes | No |
| USB Playback | Yes | - |
| Weight | 5.6 lbs (2.54 kg) | 2.9 lbs (1.3 kg) |
| Bluetooth Codecs | - | SBC, AAC, LE Audio with LC3 |
| Digital Aux Input | - | No |
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Prices on this page were last checked September 29, 2026 at 3:43 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 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
- Head-to-Head Comparisons
Marshall Stockwell III: $249.99 Marshall eBay
Older model: the Marshall Stockwell II (ranked higher, rated 4.5/5).
Pros: 40+ hour battery life with a user-replaceable battery, strap, sleeve and grilles. Doubles as a USB-C power bank. IP55 dust/water resistance. App includes parametric EQ, a Soundstage widening control, and wall/corner placement compensation. Endless-rotation control knobs.
Cons: Highs are recessed by default and need the treble control maxed to compensate, still lacking detail even then. Bass tends to sound resonant and boomy, with reported frequency cancellation and phase issues on complex material that EQ doesn’t fully resolve. Oluv’s A/B testing against the outgoing Stockwell II finds the default tuning muffled and muddy enough to prefer the seven-year-old original out of the box, and output loses dynamics and bass while turning harsh well below maximum volume. No aptX support.
Full Marshall Stockwell III review and specifications →
| Amplifier Power | 44W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 40+ hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LE Audio with LC3 |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 7.1” x 6.4” x 2.9” (180 x 162 x 74 mm) |
| Drivers | 1x 3” woofer, 2x 1.75” wide-band drivers |
| EQ | Yes (parametric, via app) |
| Frequency Response | 54Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP55 |
| Omnidirectional | Yes |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Partially |
| Strap | Yes (detachable strap) |
| TWS | No |
| Weight | 2.9 lbs (1.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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