These are not really the same size class, and that is the honest framing here. The Tribit Stormbox Micro 3 ranks #6 of 62 small speakers by sound quality at $56.76; the Sony ULT Field 1 ranks #99 of 179 medium speakers by sound quality at $138.

The Tribit Stormbox Micro 3 is the longer-running, lighter pick. A tough strap on mini speaker with full waterproofing, a 24 hour battery and a power bank output. It is rated for 24 hours of battery against 12 for the Sony ULT Field 1. At 0.7 lbs (330 g) it weighs much less than the Sony ULT Field 1 at 1.4 lbs (650 g). Watch for: Bass is thuddy and distorted by default and needs EQ.
Why pick the Sony ULT Field 1: A tough, waterproof small speaker that survives drops, with long real world battery life and stereo pairing. It links with other speakers (Party Connect up to 100 speakers), which the Tribit Stormbox Micro 3 cannot. Watch for: Upper midrange peak, rolled off treble.
Buy the Tribit Stormbox Micro 3 ($56.76) for a small speaker; the Sony ULT Field 1 ($138) suits a medium speaker instead.
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Prices on this page were last checked November 11, 2026 at 3:26 AM 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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Specifications Side By Side
| Tribit Stormbox Micro 3 | Sony ULT Field 1 | |
|---|---|---|
| Price | $56.76 | $138.00 |
| Ranked | #6 of 62 in Small Size Portable Bluetooth Speakers | #99 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 62Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | AAC, SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (9 Band) | Yes |
| IP Rating | IP68 | IP67 |
| Maximum SPL | 93dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | 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 | 0.7 lbs (330 g) | 1.4 lbs (650 g) |
| Bluetooth Version | 6.0 | 5.3 |
| Amplifier Power | 13W | - |
| Dimensions | 4.4” x 4.2” x 1.8” (112 x 107.9 x 45 mm) | 8.1” x 3” x 3” (206 x 77 x 76 mm) |
| Drivers | 48mm NdFeB driver with coaxial passive radiators | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | Yes (detachable strap) |
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