Short answer: the Soundcore Boom Go 3i. It ranks #2 of 47 small speakers by sound quality at $79.99; the Harman Kardon Esquire Mini 2 ranks #42 and costs $100, which makes this an easy call rather than a real tradeoff.
What the Soundcore Boom Go 3i offers: IP68 rated (full submersion + dustproof). ~24 hour battery life. RGB light strip syncs to the music. USB-C port doubles as a power bank for charging your phone. Watch for: Sounds a bit piercing and metallic. Bass knocks a little bit. Peak at 10khz
What the Harman Kardon Esquire Mini 2 offers: Doubles as a hands-free speakerphone and USB power bank. Metal grille with a faux-leather back and a small kickstand. 8-10 hour battery life. Watch for: Huge lack of bass. Sounds very thin and tinny at high volume
Buy the Soundcore Boom Go 3i. It ranks higher for sound quality than the Harman Kardon Esquire Mini 2 and costs less, so there is no real case for the other one.
If sound quality matters at all to you, skip the Harman Kardon Esquire Mini 2. It ranks near the bottom of the 47 small speakers, so look higher up the list instead.
Battery life favors the Soundcore Boom Go 3i: rated for 24 hours against 10 hours for the Harman Kardon Esquire Mini 2.
If water resistance matters to you, the Soundcore Boom Go 3i at IP68 (extended submersion) holds up far better than the Harman Kardon Esquire Mini 2 at no water resistance.
Specifications Side By Side
| Soundcore Boom Go 3i | Harman Kardon Esquire Mini 2 | |
|---|---|---|
| Price | $79.99 | $100 Discontinued |
| Ranked | #2 of 47 in Small Size Portable Bluetooth Speakers | #42 of 47 in Small Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 24 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC |
| Built in Microphone | Yes | Yes |
| EQ | Yes | No |
| IP Rating | IP68 | None |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes | No |
| Weight | 0.8 lbs / 380 g | 0.6 lbs / 250 g |
| Bluetooth Version | 6.0 | 4.2 |
| Output Power | 15W | 8W |
| Dimensions | 4" x 4.2" x 1.8" (102.1 x 105.9 x 45.5 mm) | 5.5" x 3" x 1" (140 x 75.2 x 26.1 mm) |
| Drivers | 25mm tweeter + 42mm woofer + passive radiators | 2x 44.5mm (~1.75") full-range drivers |
| Max Volume | 92dB | - |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | ~120Hz |
| Frequency Response | - | 130Hz - 20kHz (Manufacturer specified) |
| Charging Time | - | 3 hours |
| Discontinued | - | Yes |
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- Minirig Mini 2 vs Soundcore Boom Go 3i
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Prices on this page were last checked August 27, 2026 at 10:09 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: $79.99 Amazon Aliexpress eBay
Pros: IP68 rated (full submersion + dustproof). ~24 hour battery life. RGB light strip syncs to the music. USB-C port doubles as a power bank for charging your phone.
Cons: Sounds a bit piercing and metallic. Bass knocks a little bit. Peak at 10khz
Setup: Try out Oluv’s EQ which slightly improves the sound
Full Soundcore Boom Go 3i review and specifications →
| 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 |
| Max Volume | 92dB |
| Omnidirectional | Pointing up |
| Output Power | 15W |
| 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!
- Reddit Search for Soundcore Boom Go 3i Review
- 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 32 comparisons
Harman Kardon Esquire Mini 2: $100 Discontinued eBay
Pros: Doubles as a hands-free speakerphone and USB power bank. Metal grille with a faux-leather back and a small kickstand. 8-10 hour battery life.
Cons: Huge lack of bass. Sounds very thin and tinny at high volume. Discontinued.
Full Harman Kardon Esquire Mini 2 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~120Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 5.5" x 3" x 1" (140 x 75.2 x 26.1 mm) |
| Discontinued | Yes |
| Drivers | 2x 44.5mm (~1.75") full-range drivers |
| EQ | No |
| Frequency Response | 130Hz - 20kHz (Manufacturer specified) |
| IP Rating | None |
| Omnidirectional | Pointing up |
| Output Power | 8W |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 0.6 lbs / 250 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Harman Kardon Esquire Mini 2 vs Harman Kardon Neo
- Harman Kardon Esquire Mini 2 vs Lenovo 700 Ultraportable Bluetooth Speaker
- Harman Kardon Esquire Mini 2 vs Sony SRS-XB12
- Harman Kardon Esquire Mini 2 vs Xiaomi Sound Pocket
- Harman Kardon Esquire Mini 2 vs Noxgear 39g
- Harman Kardon Esquire Mini 2 vs Xiaomi Mi Portable Mini
- Harman Kardon Esquire Mini 2 vs JBL Clip 3
- Harman Kardon Esquire Mini 2 vs JBL Clip
- See all 29 comparisons