Short answer: the Harman Kardon Go + Play 3. It ranks #3 of 113 boombox speakers by sound quality, rated 4.4/5, at $385. The Tronsmart Fiitune X30 ranks #54, rated 3.3/5, at $144.90, $240.10 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Go + Play 3 is clearly better. In side by side tests listeners found it better in every way, with deep, clear bass and mids, while the X30 has punchy mid-bass but little deep bass and loses quality at higher volume. Both have good separation of instruments and voices.
Features: the X30 adds Hi-Res certification, LDAC, IPX6 and a claimed 14 hours, at 7.9 lbs (3.6 kg). The Go + Play 3 has no water rating and claims 8 hours at 10.4 lbs (4.7 kg).
Evidence: The X30’s rating comes from listening comparisons, not measurements.
Buy the Harman Kardon Go + Play 3. It is rated higher for sound quality, and the $240.10 you would save on the Tronsmart Fiitune X30 does not close the gap.
Water resistance is not close: the Tronsmart Fiitune X30 is rated at IPX6 (powerful water jets), well ahead of the Harman Kardon Go + Play 3 at no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 11, 2026 at 3:26 AM 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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Specifications Side By Side
| Harman Kardon Go + Play 3 | Tronsmart Fiitune X30 | |
|---|---|---|
| Price | $385 | $144.90 |
| Ranked | #3 of 113 in Boombox Size Portable Bluetooth Speakers | #54 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (Harman Kardon One app) | Yes (Tronsmart) |
| Aux Latency | 112ms | - |
| Bass Extension (-10dB) | 35Hz | - |
| Battery Life | 8 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | Yes (App EQ) | Yes |
| IP Rating | None | IPX6 |
| Bluetooth Latency | 120ms | - |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | - |
| Power Input | AC Power brick | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 10.4 lbs (4.7 kg) | 7.9 lbs (3.6 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC, LDAC |
| Power Bank | Yes | - |
| Party Mode | No | - |
| USB Playback | No | - |
| Bluetooth Version | 5.2 | 5.3 |
| Amplifier Power | 160W RMS | 80W |
| Dimensions | 17.3” x 9.4” x 7.6” (439 x 240 x 192 mm) | 14.6” x 7.7” x 5.1” (370 x 195 x 130 mm) |
| Aux Input | Yes | Yes |
| Drivers | 1x 130mm (5”) subwoofer + 2x 70mm midrange drivers + 2x 20mm tweeters | Racetrack woofer + 2x midrange + 2x tweeters + upward-firing driver |
| Digital Aux Input | No | - |
| Strap | No | No |
Watch Them Compared
Videos and reviews that test both speakers side by side.
- Dominik Reviews: Tronsmart Fiitune X30 vs HK Go + Play 3 - No chance? - Sound Test
- Jagist reviews: Tronsmart Fiitune X30 Vs Harmon Kardon Go Plus Play 3!!!
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