Short answer: the Sony ULT Field 7, if you are buying new. The Sony SRS-XG500 ranks higher than the Turtlebox Gen 3 (#61 vs #85 of 91 boombox speakers) but is discontinued; its replacement, the Sony ULT Field 7, is rated 3.2/5 at $400 and is still sold new.
Why pick the Turtlebox Gen 3: Waterproof (IP67, and it floats) and crushproof, with stainless steel hardware and quality amplifier parts inside. Watch for: Sounds basically identical to the original and the Turtlebox Gen 2: each generation mainly added features, not sound quality.
The Sony SRS-XG500 is the better-sounding, deeper-bass choice. 30 hour battery life; 10-min quick-charge gives 3 hours. Its bass reaches about 49Hz before falling 10dB, against 65Hz for the Turtlebox Gen 3. It supports LDAC Bluetooth, which the Turtlebox Gen 3 lacks. It has an adjustable EQ, which the Turtlebox Gen 3 lacks. The catch: Thuddy upper bass, not as deep bass as others.
Buy the Sony ULT Field 7, the replacement for the discontinued Sony SRS-XG500; it is rated higher for sound quality than the Turtlebox Gen 3.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Turtlebox Gen 3 | Sony SRS-XG500 | |
|---|---|---|
| Price | $430.00 | $399.99 Discontinued |
| Ranked | #85 of 91 in Boombox Size Portable Bluetooth Speakers | #61 of 91 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~65Hz | 49Hz |
| Battery Life | 25 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| IP Rating | IP67 | IP66 |
| MicroSD Playback | Yes | - |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 10 lbs (4.54 kg) | 12.3 lbs (5.6 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| App | No | Yes (Music Center, Fiestable) |
| EQ | No | Yes (App + ClearAudio+) |
| TWS | Yes | Yes |
| Party Mode | Yes (Turtlebox Party Mode) | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-A, 5V/1.5A) |
| USB Playback | No | Yes |
| Built-in Microphone | No | Yes |
| Power Input | DC Barrel Connector (15V/3A) | USB-C |
| Bluetooth Version | 5.4 | 5.0 |
| Amplifier Power | 50W | 2x 25W + 2x 10W |
| Dimensions | 12” x 7” x 8.7” (305 x 178 x 222 mm) | 18.1” x 10.1” x 8.5” (460 x 256 x 215 mm) |
| Drivers | 1x 6x9” (152x228mm) woofer + 1x 1” (25mm) tweeter | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer |
| Digital Aux Input | No | No |
| Strap | No | No |
| Microphone Input | Yes (3.5mm) | - |
| Battery Capacity | 85Wh | - |
| Maximum SPL | 102dB (measured by Williston Audio Labs) | - |
Related Speaker Comparisons
How Sony SRS-XG500 compares with other leading options:
- Tribit Stormbox Blast vs Sony SRS-XG500
- Harman Kardon Go + Play 3 vs Sony SRS-XG500
- JBL Partybox Encore 2 vs Sony SRS-XG500
- JBL PartyBox On-The-Go 2 Plus vs Sony SRS-XG500
- JBL Partybox Encore Essential 2 vs Sony SRS-XG500
Prices on this page were last checked October 9, 2026 at 8:01 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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The Two Speakers In Full
Turtlebox Gen 3: $430.00 Amazon eBay
Older models: the Turtlebox Gen 2 (ranked lower, rated 2.1/5) and the Turtlebox (ranked lower, rated 2.1/5). See every Turtlebox generation.
Same family: the Turtlebox Cub (smaller model, rated 3/5), the Turtlebox Ranger (smaller model, rated 3.5/5) and the Turtlebox Grande (larger model, ranked higher, rated 2.6/5).
Pros: Waterproof (IP67, and it floats) and crushproof, with stainless steel hardware and quality amplifier parts inside. Loud for its class: Williston Audio Labs measured 102 dB at max volume, well above a Kicker Bullfrog BF400’s 96 dB. A big 85Wh battery rated for 25+ hours, a USB-C output that charges other devices, aux and microphone inputs, and true multi-speaker Party Mode on top of stereo pairing, plus Bluetooth 5.4. Measured bass extension of ~65Hz (-10dB).
Cons: Sounds basically identical to the original and the Turtlebox Gen 2: each generation mainly added features, not sound quality. The amp is tuned to a V shape, with boosted lows and highs and a dip in the mids, but the boost can’t make up for shallow extension: the bass is only down 10dB at about 65Hz, so there’s little real low end despite the boomy upper bass. The amp delivers only about 12W RMS at 1% distortion. In Williston Audio Labs’ side by side test most listeners preferred the much smaller Kicker Bullfrog BF400 for its cleaner sound, and a Pioneer PBM5 played louder at 105 dB. Nowhere near its claimed 120dB at a reasonable measuring distance. Rattles at high volume. It charges only from its own 15V barrel plug brick, not USB-C, and has no app or EQ. Inside is essentially a car audio 6x9 two way speaker in a plastic box.
Full Turtlebox Gen 3 review and specifications →
| Released | Feb 2025 (1 year ago) |
|---|---|
| Amplifier Power | 50W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~65Hz |
| Battery Capacity | 85Wh |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 12” x 7” x 8.7” (305 x 178 x 222 mm) |
| Drivers | 1x 6x9” (152x228mm) woofer + 1x 1” (25mm) tweeter |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 102dB (measured by Williston Audio Labs) |
| MicroSD Playback | Yes |
| Microphone Input | Yes (3.5mm) |
| Omnidirectional | No |
| Party Mode | Yes (Turtlebox Party Mode) |
| Power Bank | Yes (USB-C) |
| Power Input | DC Barrel Connector (15V/3A) |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 10 lbs (4.54 kg) |
- Links
- Reviews, Comparisons and Sound Samples
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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, released Apr 2024. It drops app control. Water resistance goes from IP66 to IP67. See every Sony XB and ULT generation.
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 →
| Released | Apr 2021 (5 years ago) |
|---|---|
| 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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