Short answer: these sit in different size classes, so this isn’t a straight ranking comparison. The Soundcore Boom Go 3i ranks #2 of 47 small speakers by sound quality; the Soundcore Motion 300 ranks #2 of 142 medium speakers. Pick based on size and features rather than a head-to-head sound quality gap.
Both speakers need an EQ tweak to sound their best. The Boom Go 3i’s cons describe it as a bit piercing and metallic with a peak around 10kHz, something Oluv’s EQ preset is said to slightly improve. The Motion 300’s cons are more specific: without an EQ adjustment, or pushing the top two treble bars to max, it’s very rolled off in the treble and would rank far lower than its EQ’d result. Neither speaker is tuned right out of the box.
The size difference shows up in the driver layout and bass. The Motion 300 uses two 50.8mm full-range drivers plus two passive radiators in true stereo, reaching 50Hz at -10dB with pros calling it pretty deep bass for the small size. The Boom Go 3i is mono, with a single 25mm tweeter and 42mm woofer plus passive radiators, and its cons note the bass knocks a bit at volume.
What the Soundcore Boom Go 3i adds: full IP68 sealing (submersion-rated, not just splash-resistant like the Motion 300’s IPX7), a USB-C power bank output the Motion 300 lacks, and roughly double the rated battery life at 24 hours versus 13.
What the Soundcore Motion 300 adds: true stereo sound, a 9-band EQ with adjustable frequency versus the Boom Go 3i’s simpler EQ, LDAC codec support, and per-orientation custom EQ profiles for standing, lying flat, or hanging placement.
Buy the Soundcore Boom Go 3i if you want the smallest, most rugged, longest-battery option and don’t mind a single-driver mono sound.
Buy the Soundcore Motion 300 if you can carry a slightly bigger speaker in exchange for stereo sound, deeper bass, and finer EQ control.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Soundcore Boom Go 3i | Soundcore Motion 300 | |
|---|---|---|
| Price | $59.99 | $79.99 |
| Ranked | #2 of 47 in Small Size Portable Bluetooth Speakers | #2 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 13 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | AAC, LDAC, SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | Yes (9 band with adjustable frequency) |
| IP Rating | IP68 | IPX7 |
| Party Mode | Yes (Auracast) | Yes (PartyCast up to 100 speakers) |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes | Yes |
| Weight | 0.8 lbs (380 g) | 1.7 lbs (772 g) |
| Bluetooth Version | 6.0 | 5.3 |
| Amplifier Power | 15W | 30W |
| Dimensions | 4" x 4.2" x 1.8" (102.1 x 105.9 x 45.5 mm) | 7.9" x 3.6" x 2" (200 x 92 x 50 mm) |
| Drivers | 25mm tweeter + 42mm woofer + passive radiators | 2x 50.8mm (2") full-range drivers + 2x passive radiators |
| Maximum SPL | 92dB (Manufacturer specified) | 101dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Bass Extension (-10dB) | - | 50Hz |
| Bluetooth Latency | - | 216ms ldac, 200ms aac, 116ms sbc |
| Frequency Response | - | 65Hz - 40kHz (Manufacturer specified) |
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Prices on this page were last checked September 23, 2026 at 11:24 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 |
| 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
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- 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
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Soundcore Motion 300: $79.99 Amazon eBay
Pros: Pretty deep bass for the small size. Pocket size in a big pocket. Can be used in stereo facing you, or omnidirectional lying down. Ability to have a custom EQ for each orientation, standing, lying flat, hanging. Try the Uboom L EQs from Oluv for a more neutral sound. Measured bass extension of 50Hz (-10dB).
Cons: Without the above EQ or turning the top 2 treble EQ bars to max, this speaker is very rolled off in the treble and will rank around #50 in the rankings. Bassup mode is worse than Signature. Not quite as detailed or neutral as higher ranked speakers. Slight bass distortion when turned up.
Full Soundcore Motion 300 review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 50Hz |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, LDAC, SBC |
| Bluetooth Latency | 216ms ldac, 200ms aac, 116ms sbc |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.6" x 2" (200 x 92 x 50 mm) |
| Drivers | 2x 50.8mm (2") full-range drivers + 2x passive radiators |
| EQ | Yes (9 band with adjustable frequency) |
| Frequency Response | 65Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.7 lbs (772 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen & Soundcore Motion 300 sound test More from Oluv’Sone →
- Alan Ross Reviews: Travel Speakers! Soundcore Motion 300 or Bose Flex or Tribit Stormbow Flow More from alanrossreviews →
- Alan Ross Reviews: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
- Jay’s Straight Up Reviews & More: On A Ledge 🪟 Soundcore Motion 300 vs Tozo PA1 ⚒ Battle of the Budget Handheld Bluetooth Speakers More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Oluv Patreon: SoundCore Motion 300 vs VIFA Helsinki
- Oluv Patreon: (Anker) Soundcore Motion 300 - first impressions
- New Stuff TV 2: Sony ULT Field 1 vs JBL Flip 6, JBL Charge 5 & Soundcore Motion 300 More from NewStuffTV1 →
- Storytripper HD: Klipsch Nashville vs Harman Kardon Luna vs Soundcore Motion 300 More from storytripperhd →
- Head-to-Head Comparisons
- Soundcore Motion 300 vs Earfun Uboom L
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