Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Bose Soundlink Micro 2 ranks #18 of 47 small speakers by sound quality at $129; the Sony ULT Field 3 ranks #61 of 144 medium speakers by sound quality at $138.
Why pick the Bose Soundlink Micro 2: IP67 rated, survives a 1m dunk for 30 minutes. The tradeoff: Lack of clarity.
What the Sony ULT Field 3 does well: IP67 rated, dustproof and water resistant. The catch: Sounds a bit hollow, a bit boosted in the treble.
Buy the Bose Soundlink Micro 2 at $129 for a small speaker, or the Sony ULT Field 3 at $138 for a medium speaker instead.
If battery life is a priority, the Sony ULT Field 3 is rated for 24 hours versus 12 hours for the Bose Soundlink Micro 2.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bose Soundlink Micro 2 | Sony ULT Field 3 | |
|---|---|---|
| Price | $129.00 | $138.00 |
| Ranked | #18 of 47 in Small Size Portable Bluetooth Speakers | #61 of 144 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes | Yes (App + ULT button) |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Bose Party mode) | Yes (Party Connect up to 100 speakers) |
| Power Bank | No | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 0.7 lbs (329 g) | 2.6 lbs (1.2 kg) |
| Aux Input | No | No |
| Bluetooth Codecs | AAC, aptX, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.4 | 5.2 |
| Dimensions | 4.1” x 4.1” x 1.7” (104 x 104 x 43 mm) | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) |
| Charging Time | 3 hours | - |
| Drivers | 40mm full-range driver with passive radiator | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | Yes (detachable shoulder strap) |
| Amplifier Power | - | 27W |
Related Speaker Comparisons
More worthwhile head-to-heads for Bose Soundlink Micro 2:
- Tribit Stormbox Micro 2 vs Bose Soundlink Micro 2
- Soundcore Boom Go 3i vs Bose Soundlink Micro 2
- Minirig Mini 2 vs Bose Soundlink Micro 2
- Tribit Stormbox Micro vs Bose Soundlink Micro 2
- Bose Soundlink 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
Bose Soundlink Micro 2: $129.00 Amazon eBay
Older model: the Bose Soundlink Micro (rated 3.5/5).
Pros: IP67 rated, survives a 1m dunk for 30 minutes. Compact fabric strap for clipping to bags/bikes - replaces the 1st-gen’s hook clip, which was prone to breaking. USB-C charging. Surprisingly good bass when mounted outdoors, like on a bike.
Cons: Lack of clarity. Overly boosted bass that causes some thudding, and can overdrive/distort at higher volumes - worse in this regard than the 1st-gen model. Overly boosted treble, turn down bass and treble in the EQ. Falls clearly behind the Tribit Stormbox Micro 2 on bass depth, cleanliness, and loudness.
Full Bose Soundlink Micro 2 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, aptX, SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 4.1” x 4.1” x 1.7” (104 x 104 x 43 mm) |
| Drivers | 40mm full-range driver with passive radiator |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | Pointing up |
| Party Mode | Yes (Bose Party mode) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in strap) |
| TWS | Yes |
| Weight | 0.7 lbs (329 g) |
- Links
- Reviews, Comparisons and Sound Samples
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Sony ULT Field 3: $138.00 Amazon eBay
Older models: the Sony XB33 (rated 3.4/5), the Sony SRS-XE300 (rated 2.8/5) and the Sony SRS-XB30 (rated 2.6/5).
Pros: IP67 rated, dustproof and water resistant. 24 hour battery life. App with 10-band EQ. Party Connect with up to 100 speakers. USB-C in/out for charging your phone.
Cons: Sounds a bit hollow, a bit boosted in the treble. Custom EQ and the ULT bass-boost button can’t be used together - turning on ULT disables the EQ. Bass is very weak with ULT off. Lost to the JBL Charge 6 in a side-by-side comparison despite being the larger speaker.
Full Sony ULT Field 3 review and specifications →
| Amplifier Power | 27W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| EQ | Yes (App + ULT button) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 2.6 lbs (1.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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