These are not really the same size class, and that is the honest framing here. The Turtlebox Gen 3 ranks #67 of 72 boombox speakers by sound quality at $430; the JBL Partybox Stage 320 ranks #2 of 46 party speakers by sound quality at $549.95.
What the Turtlebox Gen 3 gets right: A much smaller, lighter package for anyone who doesn’t need party-size output. The catch: it ranks near the bottom of the boombox class here.
On the JBL Partybox Stage 320 side: A full size class up in power and bass, with a removable battery, wheels and handle, and customizable color lighting. The tradeoff: it’s slightly sibilant in the treble at full blast, very large, and JBL’s daisychain party mode only works with other JBL speakers.
Buy the Turtlebox Gen 3 at $430 if you want a boombox speaker. Buy the JBL Partybox Stage 320 at $549.95 if you want a party speaker instead.
If sound quality matters at all to you, skip the Turtlebox Gen 3. It ranks near the bottom of the 72 boombox speakers, so look higher up the list instead.
If water resistance matters to you, the Turtlebox Gen 3 at IP67 (brief submersion) holds up far better than the JBL Partybox Stage 320 at IPX4 (splashing).
Specifications Side By Side
| Turtlebox Gen 3 | JBL Partybox Stage 320 | |
|---|---|---|
| Price | $430 | $549.95 |
| Ranked | #67 of 72 in Boombox Size Portable Bluetooth Speakers | #2 of 46 in Party Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~65Hz | - |
| Battery Life | 25 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX4 |
| MicroSD Playback | Yes | - |
| Stereo | Yes | Partially |
| Weight | 10 lbs / 4.54 kg | 36.4 lbs / 16.5 kg |
| Bluetooth Codecs | SBC | SBC |
| App | No | Yes |
| EQ | No | Yes (5 band) |
| TWS | Yes | Yes |
| Party Mode | Yes (infinite pairing) | Yes (Auracast) |
| Power Bank | Yes (USB-C) | Yes (USB-A, 5V/2.1A) |
| USB Playback | No | Yes |
| Built in Microphone | No | - |
| Power Input | USB-C | AC Power cord |
| Bluetooth Version | 5.4 | 5.4 |
| Output Power | 50W | 240W |
| Dimensions | 12" x 7" x 8.7" (305 x 178 x 222 mm) | - |
| Drivers | 1x 6x9" (152x228mm) woofer + 1x 1" (25mm) tweeter | 2x 6.5" woofers, 2x 25mm tweeters |
| Digital Aux Input | No | No |
| Guitar Input | - | Yes |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| Removable Battery | - | Yes |
The Two Speakers In Full
Turtlebox Gen 3: $430 Amazon
Pros: Waterproof and crushproof, loud with punchy bass. 25+ hour battery life. USB-C charging and USB-C output charges other devices. True multi-speaker Party Mode added on top of stereo pairing, plus Bluetooth 5.4.
Cons: Sounds basically identical to the original and the Gen 2: each generation mainly added features, not sound quality. They pretty much lie about all their specs and sound horrible in all youtube sound samples. Will never hit its claimed 120db at a reasonable measuring distance. Putting your db meter right against the speaker doesn’t count, 1 meter distance is the standard. Barely any bass. Rattles at high volume. Looking at it, it appears to be a generic car 2-way 6x9 speaker in a plastic box.
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~65Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| 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 |
| MicroSD Playback | Yes |
| Output Power | 50W |
| Party Mode | Yes (infinite pairing) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 10 lbs / 4.54 kg |
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- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Turtlebox Gen 3 vs Turtlebox Gen 2
- Turtlebox Gen 3 vs Turtlebox
- Turtlebox Gen 3 vs EcoXGear Defender
- Turtlebox Gen 3 vs Turtlebox Grande
- Turtlebox Gen 3 vs Harman Kardon Go + Play 3
- Turtlebox Gen 3 vs Tribit Stormbox Blast
- Turtlebox Gen 3 vs Earfun Uboom X
- Turtlebox Gen 3 vs Turtlebox Ranger
- See all 11 comparisons
JBL Partybox Stage 320: $549.95 Amazon Bhphotovideo
Pros: Handle and wheels are convenient. Customizable color lighting modes. Keeps more bass than the 310 at high volume. Removable battery.
Cons: Slightly sibilant in the treble at full blast. Very large. Note, JBL daisychain is not compatible with any other non-JBL speaker and is possibly a fully digital signal.
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Digital Aux Input | No |
| Drivers | 2x 6.5" woofers, 2x 25mm tweeters |
| EQ | Yes (5 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Output Power | 240W |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Partially |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 36.4 lbs / 16.5 kg |
- Buy Used
As an eBay Partner, I may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: JBL Partybox 320 vs 520 - indoor listening session
- Oluv Patreon: JBL Partybox 320 vs 520 - outdoor test
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To?
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🥳 A Family Feud! Battery Powered🔋Bluetooth Party Speakers Face-Off🤬
- GYMCADDY: JBL PartyBox Stage 320 Review - Big Upgrades Everywhere, Worth The Upgrade
- Reddit Search for JBL Partybox Stage 320 Review
- Head-to-Head Comparisons
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Product prices and availability were last checked August 11, 2026 at 1:09 PM UTC 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.