Short answer: the ULT Field 7 for better sound, the SRS-XG500 for battery life. Sony’s notes call the Field 7 better sounding than the XG500, though its bass is still not as deep as the top ranked speakers. The XG500 claims 30 hours of play and a 10-min quick-charge that gives 3 hours, but its upper bass is thuddy and its bass is not as deep as others.
Buy the Sony ULT Field 7. It is rated higher for sound quality and still sold new, while the Sony SRS-XG500 is discontinued.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 7 | Sony SRS-XG500 | |
|---|---|---|
| Price | $400 | $399.99 Discontinued |
| Ranked | #56 of 90 in Boombox Size Portable Bluetooth Speakers | #61 of 90 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~52Hz | 49Hz |
| Battery Life | 30 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Guitar Input | Yes | - |
| IP Rating | IP67 | IP66 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| USB Playback | Yes | Yes |
| Weight | 13.9 lbs (6.3 kg) | 12.3 lbs (5.6 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC, AAC, LDAC |
| App | No | Yes (Music Center, Fiestable) |
| EQ | Yes (App + ULT button) | Yes (App + ClearAudio+) |
| TWS | Yes | Yes |
| Built-in Microphone | Yes | Yes |
| Bluetooth Version | 5.2 | 5.0 |
| Dimensions | 20.2” x 8.8” x 8.7” (512 x 224 x 222 mm) | 18.1” x 10.1” x 8.5” (460 x 256 x 215 mm) |
| Amplifier Power | 100W | 2x 25W + 2x 10W |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer |
| Digital Aux Input | No | No |
| Strap | No | No |
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Prices on this page were last checked October 2, 2026 at 10:18 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 7: $400 Amazon eBay
Older model: the Sony SRS-XG500 (ranked lower, rated 3/5).
Pros: Sony ULT Field 7 uses 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters. Its 6.3 kg, claimed 30 hours (Manufacturer specified) battery life, IP67 protection, aux input and stereo playback make it a practical option for its intended room or portable use. Measured bass extension of ~52Hz (-10dB).
Cons: Bass is limited by its ~52Hz specification. There is no companion app. A peak around 8kHz, and bass does not reach as deep as the top-ranked speakers.
Full Sony ULT Field 7 review and specifications →
| Amplifier Power | 100W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~52Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 20.2” x 8.8” x 8.7” (512 x 224 x 222 mm) |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters |
| EQ | Yes (App + ULT button) |
| Guitar Input | Yes |
| IP Rating | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.9 lbs (6.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
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- Sony ULT Field 7 vs Onn Medium Party Speaker Gen 2
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Sony SRS-XG500: $399.99 Discontinued Amazon eBay
Newer model: the Sony ULT Field 7, ranked higher, rated 3.2/5.
Pros: 30 hour battery life; 10-min quick-charge gives 3 hours. Battery care function stops charging at 90% to extend longevity. IP66 water/dust resistant. Two USB-A ports (one charges devices), mic/guitar inputs, AUX. Party mode links 100+ speakers. Measured bass extension of 49Hz (-10dB).
Cons: Thuddy upper bass, not as deep bass as others. Speaker will not remain at max volume and will turn itself down automatically. Discontinued.
Full Sony SRS-XG500 review and specifications →
| Amplifier Power | 2x 25W + 2x 10W |
|---|---|
| App | Yes (Music Center, Fiestable) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 49Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 18.1” x 10.1” x 8.5” (460 x 256 x 215 mm) |
| Drivers | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer |
| EQ | Yes (App + ClearAudio+) |
| IP Rating | IP66 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 12.3 lbs (5.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Tribit Stormbox Blast 🆚 Sony SRS-XG500 - Tailgater Special - Battery Powered ☢️ Bass Boost Enabled. More from JaysStraightUpReviews →
- Jagist reviews: Tribit Stormbox Blast vs Sony SRS XG 500 More from Jagistreviews →
- DLX Willington: Sony SRS-XG500 vs JBL Encore Essential Sound Battle More from DLXWillington →
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