Short answer: the Ultimate Ears Wonderboom 4 is the better inexpensive outdoor speaker, while the Bose SoundLink Color II only makes sense for particular used-market features, though neither ranks well in its class. The Wonderboom ranks #106 of 172 medium speakers at $64.99, compared with the Bose at #122 for $104.99, a $40 difference. Both are rated below 3.0/5 among the 172 medium speakers, so if sound quality matters, consider the EarFun Uboom L instead, ranked #2 at $49.79.
Wonderboom 4 is much better suited to bags, beaches, and accidental drops in water. It weighs 0.9 lbs (420 g), has an IP67 rating, charges over USB-C, lasts a rated 14 hours, and plays sound in all directions. It has no app or Party Mode and its bass is shallow and somewhat thuddy, but it remains a capable small, current speaker for the price.
The Bose is larger and carries features the Wonderboom lacks. Its stereo drivers, built-in microphone, multipoint pairing, Bose Party mode, and soft rubber coating are still appealing. However, it is discontinued, only IPX4 splash resistant, uses Micro USB, lasts a rated eight hours, and its boosted bass, limited midrange detail, and rolled-off treble limit its appeal.
Buy the Ultimate Ears Wonderboom 4 for lower cost, lighter carry weight, IP67 waterproofing, USB-C charging, and the stronger sound-quality ranking.
Buy the Bose SoundLink Color II only if its stereo playback, multipoint pairing, or speakerphone function is worth choosing discontinued hardware.
There is a real battery-life gap here: the Ultimate Ears Wonderboom 4 is rated for 14 hours, the Bose SoundLink Color II only 8 hours.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Soft-touch rubber coating is comfortable to hold and tough enough for bumps and scrapes.
Amazon $104.99 eBay
A small 420 g IP67 waterproof 360 degree speaker with 14-hour battery life and a built-in strap loop.
Amazon $64.99 eBayPrices on this page were last checked October 16, 2026 at 5:46 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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Specifications Side By Side
| Bose SoundLink Color II | Ultimate Ears Wonderboom 4 | |
|---|---|---|
| Price | $104.99 Discontinued | $64.99 |
| Ranked | #122 of 172 in Medium Size Portable Bluetooth Speakers | #106 of 172 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 8 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| Party Mode | Yes (Bose Party mode) | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (600 g) | 0.9 lbs (420 g) |
| IP Rating | IPX4 | IP67 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.2 |
| Dimensions | 5.2” x 5” x 2.2” (132 x 127 x 56 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm full-range drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| App | Yes (Bose Connect) | No |
| EQ | No | No |
| Built-in Microphone | Yes | No |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| Power Input | Micro USB | USB-C |
| Power Bank | No | No |
| Aux Input | No | No |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC, AAC | SBC |
| Maximum SPL | - | 87dB (Manufacturer specified) |
| Strap | - | Yes (built-in loop) |
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