Short answer: the Sony ULT Field 1. It ranks #76 of 136 medium speakers by sound quality at $98; the Sony SRS-XB20 ranks #94 and costs $129, so there is not much of a tradeoff to weigh.
What the Sony ULT Field 1 offers: 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. Watch for: Upper midrange peak, rolled off treble
What the Sony SRS-XB20 offers: IPX5 rated pill shape slides easily into a bag. 12 hour battery life. Watch for: Sounds thin at higher volumes. Bass falls away quickly.
Buy the Sony ULT Field 1. It ranks higher for sound quality than the Sony SRS-XB20 and costs less, which settles it without a real tradeoff to make.
Specifications Side By Side
| Sony ULT Field 1 | Sony SRS-XB20 | |
|---|---|---|
| Price | $98.00 | $129 |
| Ranked | #76 of 136 in Medium Size Portable Bluetooth Speakers | #94 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (SongPal) |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built in Microphone | Yes | Yes |
| EQ | Yes | No |
| IP Rating | IP67 | IPX5 |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Partychain up to 100 speakers) |
| Power Bank | No | No |
| Power Input | USB-C | Micro USB |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.4 lbs / 650 g | 1.3 lbs / 590 g |
| Bluetooth Codecs | AAC, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 | 4.2 |
| Dimensions | 8.1" x 3" x 3" (206 x 77 x 76 mm) | 7.8" x 2.7" x 2.7" (198 x 68 x 69 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator | 2x 42mm full-range drivers + 2x passive radiators |
| Digital Aux Input | No | No |
| Output Power | - | 20W |
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- Bose Soundlink Flex 2nd gen vs Tribit Stormbox
- Marshall Emberton II vs Tribit Stormbox
- Sonos Roam vs JBL Grip
- Sonos Roam vs Sony ULT Field 1
- Sony ULT Field 1 vs Ultimate Ears Boom 3
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
Sony ULT Field 1: $98.00 Amazon eBay
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 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 |
| TWS | Yes |
| Weight | 1.4 lbs / 650 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Sony SRS-XB20: $129 eBay
Pros: IPX5 rated pill shape slides easily into a bag. 12 hour battery life.
Cons: Sounds thin at higher volumes. Bass falls away quickly.
Full Sony SRS-XB20 review and specifications →
| App | Yes (SongPal) |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.8" x 2.7" x 2.7" (198 x 68 x 69 mm) |
| Drivers | 2x 42mm full-range drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IPX5 |
| Omnidirectional | No |
| Output Power | 20W |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Bank | No |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs / 590 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony SRS-XB20 vs Yamaha True X Speaker 1A
- Sony SRS-XB20 vs Tribit Stormbox
- Sony SRS-XB20 vs Sony SRS-XE300
- Sony SRS-XB20 vs Bose SoundLink Color II
- Sony SRS-XB20 vs Klipsch Groove/Heritage Groove
- Sony SRS-XB20 vs Marshall Emberton III
- Sony SRS-XB20 vs Ultimate Ears Boom 3
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