Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Soundcore Boom Go 3i ranks #2 of 47 small speakers by sound quality at $59.99; the Sony ULT Field 1 ranks #81 of 144 medium speakers by sound quality at $98.
What the Soundcore Boom Go 3i does well: An exceptionally rugged 380g mini speaker with IP68 protection, a floating sound-forward design, app EQ, RGB lighting, a battery display, USB-C power-bank output and Auracast/TWS linking. The tradeoff: This is still a 15W mono speaker: bass impact and stereo width are limited, and critical listeners may find the upper treble piercing or metallic.
What the Sony ULT Field 1 does well: IP67 rated, survives drops and 1m submersion. Watch for: Upper midrange peak, rolled off treble.
Buy the Soundcore Boom Go 3i at $59.99 for a small speaker, or the Sony ULT Field 1 at $98 for a medium speaker instead.
Battery life favors the Soundcore Boom Go 3i: rated for 24 hours against 12 hours for the Sony ULT Field 1.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Soundcore Boom Go 3i | Sony ULT Field 1 | |
|---|---|---|
| Price | $59.99 | $98.00 |
| Ranked | #2 of 47 in Small Size Portable Bluetooth Speakers | #81 of 144 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | AAC, SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | Yes |
| IP Rating | IP68 | IP67 |
| Party Mode | Yes (Auracast) | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 0.8 lbs (380 g) | 1.4 lbs (650 g) |
| Bluetooth Version | 6.0 | 5.3 |
| Amplifier Power | 15W | - |
| Dimensions | 4” x 4.2” x 1.8” (102.1 x 105.9 x 45.5 mm) | 8.1” x 3” x 3” (206 x 77 x 76 mm) |
| Drivers | 25mm tweeter + 42mm woofer + passive radiators | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| Maximum SPL | 92dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | Yes (detachable strap) |
Related Speaker Comparisons
More worthwhile head-to-heads for Soundcore Boom Go 3i:
- Soundcore Boom Go 3i vs Tribit Stormbox Micro 2
- Minirig Mini 2 vs Soundcore Boom Go 3i
- Minirig Mini vs Soundcore Boom Go 3i
- Soundcore Boom Go 3i vs Tribit Stormbox Micro
- Soundcore Boom Go 3i vs Tribit Stormbox Micro 3
Prices on this page were last checked September 26, 2026 at 11:14 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
Soundcore Boom Go 3i: $59.99 Amazon AliExpress eBay
Pros: An exceptionally rugged 380g mini speaker with IP68 protection, a floating sound-forward design, app EQ, RGB lighting, a battery display, USB-C power-bank output and Auracast/TWS linking. It reaches about 92dB and independent testing finds it lasts nearly six hours at maximum volume with lights and BassUp enabled, matching its demanding claim.
Cons: This is still a 15W mono speaker: bass impact and stereo width are limited, and critical listeners may find the upper treble piercing or metallic. It is directional by design, so the sound changes off-axis, and independent reviews note it lacks a built-in microphone; it is far better for rugged outdoor background music than a large gathering.
Setup: Try out Oluv’s EQ which slightly improves the sound
Full Soundcore Boom Go 3i review and specifications →
| Amplifier Power | 15W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 6.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4” x 4.2” x 1.8” (102.1 x 105.9 x 45.5 mm) |
| Drivers | 25mm tweeter + 42mm woofer + passive radiators |
| EQ | Yes |
| IP Rating | IP68 |
| Lights | Yes |
| Maximum SPL | 92dB (Manufacturer specified) |
| Omnidirectional | Pointing up |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 0.8 lbs (380 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: SoundCore Boom Go 3i - first look More from Oluv’Sone →
- Techder Audios: Soundcore Boom Go 3i - Soundtest HOW GOOD IS 15W? WITH BASS UP 2.0!? More from techderaudios →
- Storytripper HD: Bose Micro 2 vs Soundcore Boom Go 3i vs Tribit Micro 2 More from storytripperhd →
- Gi Rides: Soundcore Boom Go 3i vs Tribit Stormbox Micro 2 Binaural Audio
- TecH Moe: Soundcore Boom Go 3i: The Mini Speaker to Buy! More from TecHMoE →
- Head-to-Head Comparisons
- Soundcore Boom Go 3i vs Tribit Stormbox Micro 2
- Soundcore Boom Go 3i vs Minirig Mini 2
- Soundcore Boom Go 3i vs Minirig Mini
- Soundcore Boom Go 3i vs Tribit Stormbox Micro
- Soundcore Boom Go 3i vs Tribit Stormbox Micro 3
- Soundcore Boom Go 3i vs Teufel Boomster Go
- Soundcore Boom Go 3i vs Soundcore Mini 3 Pro
- Soundcore Boom Go 3i vs Soundcore Mini 3
- See all 59 comparisons
Sony ULT Field 1: $98.00 Amazon eBay
Older models: the Sony XB23 (rated 3.3/5) and the Sony SRS-XB20 (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 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 Tribit Xsound Surf
- Sony ULT Field 1 vs KEF Muo gen2
- Sony ULT Field 1 vs Tribit Stormbox 2
- Sony ULT Field 1 vs Sonos Roam
- See all 113 comparisons