Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Turtlebox Cub ranks #60 of 82 large speakers by sound quality at $330; the EcoXGear Defender ranks #60 of 76 boombox speakers by sound quality at $303.38.
Both are built for the outdoors, IP67 waterproof and tough. The Defender floats and adds a flashlight and bottle opener. The Cub adds stainless steel tie-downs.
Sound: the Defender gets very loud for its size but uses a single front driver with narrow dispersion, and its bass does not reach as deep as competitors. The Cub uses a woofer plus a separate titanium tweeter, with warm, bass-forward tuning in the reviews so far.
Size and battery: the Cub is 2.4 kg with a claimed 14+ hours. The Defender is 4.5 kg with a claimed 25 hours and an aux input. Both have a USB-C power bank.
The Defender has no party mode; the Cub links to other Turtleboxes and pairs in stereo.
Buy the Turtlebox Cub at $330 for a large speaker, or the EcoXGear Defender at $303.38 for a boombox speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Turtlebox Cub | EcoXGear Defender | |
|---|---|---|
| Price | $330.00 | $303.38 |
| Ranked | #60 of 82 in Large Size Portable Bluetooth Speakers | #60 of 76 in Boombox Size Portable Bluetooth Speakers |
| Drivers | 1x 4.5” (114mm) woofer + 1x 1.3” (33mm) titanium tweeter | 52mm full-range driver |
| Battery Life | 14+ hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Weight | 5.3 lbs (2.4 kg) | 10 lbs (4.54 kg) |
| Dimensions | 8.6”H x 7.2”W x 5.7”D (218 x 183 x 146 mm) | 6.7” x 15.4” x 9.6” (170.2 x 391.2 x 243.8 mm) |
| Power Bank | Yes (USB-C) | Yes (USB-C, 5V/2.1A) |
| Power Input | USB-C | USB-C |
| Party Mode | Yes (Party Mode) | No |
| TWS | Yes | Yes |
| Stereo | No | No |
| Omnidirectional | No | No |
| Bluetooth Codecs | - | SBC |
| App | - | No |
| EQ | - | Yes |
| USB Playback | - | No |
| Built-in Microphone | - | Yes |
| FM Tuner | - | No |
| Bluetooth Version | - | 5.1 |
| Amplifier Power | - | 100W |
| Aux Input | - | Yes |
| Digital Aux Input | - | No |
Related Speaker Comparisons
More worthwhile head-to-heads for Turtlebox Cub:
- JBL Xtreme 5 vs Turtlebox Cub
- Tribit Stormbox Lava vs Turtlebox Cub
- Soundcore Boom 2 vs Turtlebox Cub
- Bose SoundLink Max vs Turtlebox Cub
- Teufel Rockster Cross 2 vs Turtlebox Cub
Prices on this page were last checked September 26, 2026 at 11:14 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
Turtlebox Cub: $330.00 Amazon eBay
Pros: A compact, cube-shaped Turtlebox at 2.4 kg with a real two-way layout: a 4.5 inch woofer and a 1.3 inch titanium tweeter. Reviewers found it very loud for its size, with warm, bass-forward tuning and a bit more bass than the Turtlebox Ranger. IP67 waterproof and dustproof, crush and drop resistant, stainless steel tie-downs, a claimed 14+ hours from a 49.95Wh battery, USB-C charging with a power bank output, stereo pairing and Party Mode.
Cons: The evidence so far is listening impressions from two reviews, with no measurements or side by side tests against other brands. One reviewer found it loses bass at high volume, and it is not as loud as the full-size Turtlebox. Turtlebox’s claimed 118dB is a figure the brand’s larger speakers have not come close to at a standard one meter distance. It is also mono from one unit, and its recessed USB-C port only fits slim cable plugs.
Full Turtlebox Cub review and specifications →
| Battery Life | 14+ hours (Manufacturer specified) |
|---|---|
| Dimensions | 8.6”H x 7.2”W x 5.7”D (218 x 183 x 146 mm) |
| Drivers | 1x 4.5” (114mm) woofer + 1x 1.3” (33mm) titanium tweeter |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Mode) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 5.3 lbs (2.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Turtlebox Cub vs Marshall Stockwell III
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- Turtlebox Cub vs Bose SoundLink Max
- Turtlebox Cub vs Soundcore Boom 2
- See all 13 comparisons
EcoXGear Defender: $303.38 Amazon eBay
Pros: A rugged 4.54kg outdoor speaker with IP67 protection, a floating design, a flashlight, bottle opener, aux input, USB-C power-bank output and claimed 25-hour battery life. Independent testing found it gets very loud for its size, while its three ecoEQ presets let you choose a bass-heavy default, a more balanced indoor mode or a brighter outdoor mode.
Cons: Its single front-facing driver layout has narrow dispersion: clarity and detail drop noticeably when you move off-axis, and the soundstage is limited. The default setting can be over-bassy at lower volumes, while there is no app, precise EQ, battery indicator or multi-speaker party mode. Bass does not reach as deep as competitors.
Full EcoXGear Defender review and specifications →
| Amplifier Power | 100W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 6.7” x 15.4” x 9.6” (170.2 x 391.2 x 243.8 mm) |
| Drivers | 52mm full-range driver |
| EQ | Yes |
| FM Tuner | No |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-C, 5V/2.1A) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 10 lbs (4.54 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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