The EcoXGear EcoBoulder Ultra ranks #90 out of 111 total Boombox Size Portable Bluetooth Speakers for sound quality. See all Portable Bluetooth rankings for every top pick.
Brand: EcoXGear
Prices on this page were last checked October 19, 2026 at 10:32 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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#90 EcoXGear EcoBoulder Ultra: $199.99 Amazon $199.99 eBay
Pros: An IP67 rated, floating boombox with an 8 inch driver, a 3 inch tweeter and an 8 inch passive woofer, claimed at 121 dB. It rolls on rear wheels, plays more than 50 hours at average volume and about 10 at full, and adds AM/FM radio, an aux input, USB-C phone charging, addressable RGB lights and EcoCast linking with up to 100 compatible speakers, including true stereo pairs.
Cons: Its bass is nowhere near as deep as top ranked boomboxes like the Tribit Stormbox Blast and Harman Kardon Go + Play 3, which reach down to about 43 Hz and 35 Hz. No independent hands on reviews or measurements yet, so its rating is estimated from the EcoXGear EcoBoulder+ and the EcoXGear Defender. At about 12.7 kg it is heavy, a full recharge takes 7 to 8 hours, and the app only controls the lights. It does not link with older EcoConnect speakers.
Is the EcoXGear EcoBoulder Ultra right for you?
Buy it if
- you want it outdoors, by the pool or in the shower (IP67).
- you want long battery life (claimed 50 hours).
- you want to charge your phone from it.
Skip it if
- you want something easy to carry (12.7 kg).
- you want the best value: the higher-rated Zealot S98 costs about $53 less.
| Released | Mar 2024 (2 years ago) |
|---|---|
| Amplifier Power | 100W |
| App | Yes (lights only) |
| Aux Input | Yes |
| Battery Life | 50 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Dimensions | 15.5” x 19.8” x 11.3” (394 x 503 x 287 mm) |
| Drivers | 1x 8” driver + 1x 3” tweeter + 1x 8” passive radiator |
| EQ | Yes (5 presets, bass and treble) |
| FM Tuner | Yes (AM/FM) |
| IP Rating | IP67 |
| Lights | Yes |
| Maximum SPL | 121 dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (EcoCast, up to 100 units) |
| Power Bank | Yes (USB-C) |
| Power Input | AC Power cord |
| Stereo | No |
| Strap | No (built-in handle) |
| TWS | Yes (EcoCast) |
| Weight | 28 lbs (12.7 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
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