Short answer: the Sony ULT Field 1 for durability and battery, the Soundcore 2 for size. The Sony is IP67 rated, survives drops and 1m submersion and runs around 28+ hours with ULT off at $138, though it has an upper midrange peak and rolled off treble. The Soundcore 2 is very light at 0.8 lbs (363 g) and compact with a 24+ hour battery from a 5200mAh cell at $29.99, but its bass does not go as deep as others.
Buy the Sony ULT Field 1 if sound quality is the priority over the price, or the Soundcore 2 if the price is the priority over sound quality.
Battery life favors the Soundcore 2: rated for 24 hours against 12 hours for the Sony ULT Field 1.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 1 | Soundcore 2 | |
|---|---|---|
| Price | $138.00 | $29.99 |
| Ranked | #90 of 157 in Medium Size Portable Bluetooth Speakers | #96 of 157 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| EQ | Yes | No |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Party Connect up to 100 speakers) | - |
| Power Bank | No | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 0.7 lbs (318 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 8.1” x 3” x 3” (206 x 77 x 76 mm) | 6.6” x 1.9” x 2.2” (168 x 47 x 56 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator | 2x 38mm fullrange |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | No |
| Frequency Response | - | 70Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 12W |
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Prices on this page were last checked October 3, 2026 at 10:26 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
Sony ULT Field 1: $138.00 Amazon eBay
Older models: the Sony XB23 (ranked higher, rated 3.3/5) and the Sony SRS-XB20 (ranked lower, rated 2.8/5).
Pros: IP67 rated, survives drops and 1m submersion. Real-world battery around 28+ hours with ULT (bass boost) mode off. Stereo-pairs with a second ULT Field 1.
Cons: Upper midrange peak, rolled off treble
Full Sony ULT Field 1 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.1” x 3” x 3” (206 x 77 x 76 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 1.4 lbs (650 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Field 1 vs JBL Grip
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Soundcore 2: $29.99 Amazon eBay
Newer model: the Soundcore 3, ranked higher, rated 3.4/5.
Pros: Soundcore 2 uses 2x 38mm fullrange. Its 318 g, claimed 24 hours (Manufacturer specified) battery life, IPX7 protection, aux input and stereo playback make it a practical option for its intended room or portable use.
Cons: Its 70Hz to 20kHz (Manufacturer specified) specification points to limited deep-bass reach for the cabinet size. There is no companion app. No EQ adjustment.
Full Soundcore 2 review and specifications →
| Amplifier Power | 12W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 6.6” x 1.9” x 2.2” (168 x 47 x 56 mm) |
| Drivers | 2x 38mm fullrange |
| EQ | No |
| Frequency Response | 70Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Input | Micro USB |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 0.7 lbs (318 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore 2 vs Tribit Stormbox 2
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