These are not really the same size class, and that is the honest framing here. The Tribit Stormbox Micro 2 ranks #1 of 47 small speakers by sound quality at $49.99; the Ultimate Ears Boom 4 ranks #93 of 144 medium speakers by sound quality at $119.99.
Why pick the Tribit Stormbox Micro 2: Best in class sound. Watch for: Finicky phone charging, which doesn’t usually work.
The case for the Ultimate Ears Boom 4: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. The catch: Not much improvement over the old ones.
Buy the Tribit Stormbox Micro 2 ($49.99) for a small speaker; the Ultimate Ears Boom 4 ($119.99) suits a medium speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Tribit Stormbox Micro 2 | Ultimate Ears Boom 4 | |
|---|---|---|
| Price | $49.99 | $119.99 |
| Ranked | #1 of 47 in Small Size Portable Bluetooth Speakers | #93 of 144 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 65Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| EQ | Yes (9 Band) | Yes (via app) |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 265ms | - |
| Maximum SPL | 94dB (measured by Alan Ross Reviews) | 85dBC (Manufacturer specified) |
| Party Mode | No | - |
| Power Bank | Yes (but it doesn’t usually work; USB-C, 10W) | No |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 0.7 lbs (317 g) | 1.4 lbs (620 g) |
| Bluetooth Version | 5.3 | 5.1 |
| Amplifier Power | 10W | - |
| Dimensions | 3.9” x 3.9” x 1.7” (99.1 x 99.1 x 42.7 mm) | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Drivers | 48mm NdFeB driver | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | Yes (built-in loop) |
Related Speaker Comparisons
More worthwhile head-to-heads for Tribit Stormbox Micro 2:
- Soundcore Boom Go 3i vs Tribit Stormbox Micro 2
- Minirig Mini 2 vs Tribit Stormbox Micro 2
- Minirig Mini vs Tribit Stormbox Micro 2
- Tribit Stormbox Micro vs Tribit Stormbox Micro 2
- Tribit Stormbox Micro 2 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
Tribit Stormbox Micro 2: $49.99 Amazon AliExpress eBay
Newer model: the Tribit Stormbox Micro 3, rated 4.2/5.
Pros: Best in class sound. Much deeper bass than most other speakers in the size. Built in strap is super useful for attaching it to things. Very neutral. To have it aimed directly at you unclip the strap and the speaker will sit upright with a slight lean back. Measured bass extension of 65Hz (-10dB).
Cons: Finicky phone charging, which doesn’t usually work.
Setup: Use in Music EQ mode, when you switch to custom it’s not able to boost the bass properly as it is missing an EQ band that Music EQ mode uses
Full Tribit Stormbox Micro 2 review and specifications →
| Amplifier Power | 10W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 65Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 265ms |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.9” x 3.9” x 1.7” (99.1 x 99.1 x 42.7 mm) |
| Drivers | 48mm NdFeB driver |
| EQ | Yes (9 Band) |
| IP Rating | IP67 |
| Maximum SPL | 94dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | Yes (but it doesn’t usually work; USB-C, 10W) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in strap) |
| TWS | Yes |
| Weight | 0.7 lbs (317 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: TRIBIT StormBox Micro 3, fully tested vs Micro 2, not clickbait More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Micro 2 ultimate review 🤭 vs Micro 1 - small and mighty!
- Alan Ross Reviews: Tribit Stormbox Micro 2 vs Bose Soundlink Micro for best small speaker! 👌
- Storytripper HD: Bose Micro 2 vs Soundcore Boom Go 3i vs Tribit Micro 2 More from storytripperhd →
- Danny Pops: I WAS BLOWN AWAY - Tribit Stormbox Micro 2 VS Marshall Willen More from DannyPops →
- Sound Quality Joss: Tribit Stormbox Micro 2 VS Anker Soundcore Mini 3 Pro
- Storytripper HD: Marshall Willen vs Tribit Stormbox Micro 2
- Alkar Audio: Speaker Bluetooth Marshall Willen Review VS Tribit Stormbox Micro 2
- MyTechAudio: MARSHALL WILLEN Detail Review Indonesia Vs TRIBIT Micro 1 & Micro 2
- Gi Rides: Tribit Stormbox Micro 2 vs JBL Clip 4 - sound battle
- Joy & Oluv’Sone: Best portable speakers 2025 - get the best bang for your buck $$$ More from Oluv’Sone →
- Storytripper HD: Marshall Willen vs Tribit StormBox Micro 2 vs Klipsch Austin
- DIY Subwoofers - Stormbox Micro 2 Measurements and Review
- Head-to-Head Comparisons
- Tribit Stormbox Micro 2 vs Soundcore Boom Go 3i
- Tribit Stormbox Micro 2 vs Minirig Mini 2
- Tribit Stormbox Micro 2 vs Minirig Mini
- Tribit Stormbox Micro 2 vs Tribit Stormbox Micro
- Tribit Stormbox Micro 2 vs Tribit Stormbox Micro 3
- Tribit Stormbox Micro 2 vs Teufel Boomster Go
- Tribit Stormbox Micro 2 vs Soundcore Mini 3 Pro
- Tribit Stormbox Micro 2 vs Soundcore Mini 3
- See all 62 comparisons
Ultimate Ears Boom 4: $119.99 Amazon eBay
Older model: the Ultimate Ears Boom 3 (rated 2.9/5).
Pros: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. 15 hour battery. Customizable EQ and speaker-pairing via the UE app.
Cons: Not much improvement over the old ones. Weak bass extension and thuddy bass. Gets distorted above 90%
Full Ultimate Ears Boom 4 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 85dBC (Manufacturer specified) |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.4 lbs (620 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Boom 4 vs Ultimate Ears Boom 3
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom
- Ultimate Ears Boom 4 vs Klipsch Groove/Heritage Groove
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 3
- Ultimate Ears Boom 4 vs DBSONO X-Blast F37
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Boom 4 vs Sony SRS-XE300
- See all 113 comparisons