Short answer: the Ultimate Ears Wonderboom 4, though neither ranks well in its class. It ranks #89 of 144 medium speakers by sound quality, rated 2.9/5, at $59.99. The Skullcandy Terrain ranks #135, rated 2.1/5, at $49.94, $10.05 cheaper, a saving that is not big enough to make up the sound-quality gap. Both are rated below 3.0/5 among the 144 medium speakers; for better sound, the Earfun Uboom L ranks #1 at $49.79.
What the Ultimate Ears Wonderboom 4 does well: Small size. The tradeoff: Bass isn’t as deep as the top-ranked speakers and is a little thuddy.
Why pick the Skullcandy Terrain: IPX7 rated with a nylon wrist wrap for carrying. Watch for: No bass, very rolled off treble.
Buy the Ultimate Ears Wonderboom 4. It is rated higher for sound quality, and saving $10.05 with the Skullcandy Terrain does not make up for the sound-quality gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Wonderboom 4 | Skullcandy Terrain | |
|---|---|---|
| Price | $59.99 | $49.94 |
| Ranked | #89 of 144 in Medium Size Portable Bluetooth Speakers | #135 of 144 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 14 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| Maximum SPL | 87dB (Manufacturer specified) | 90dB SPL (Manufacturer specified) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs (420 g) | 1 lbs (458 g) |
| IP Rating | IP67 | IPX7 |
| Bluetooth Version | 5.2 | 5.3 |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) | 6.3” x 3.1” x 3.1” (160 x 79 x 79 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) | 2x 48mm drivers + passive radiators |
| TWS | Yes | Yes |
| Party Mode | No | Yes (SKDY Multi-Link, up to 99 speakers) |
| App | No | Yes |
| EQ | No | No |
| Built-in Microphone | No | No |
| Power Bank | No | - |
| Aux Input | No | No |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC |
| Strap | Yes (built-in loop) | Yes (wrist strap) |
| Amplifier Power | - | 2 x 6W |
Related Speaker Comparisons
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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
Ultimate Ears Wonderboom 4: $59.99 Amazon eBay
Older models: the Ultimate Ears Wonderboom 3 (rated 2.9/5), the Ultimate Ears Wonderboom 2 (rated 2.9/5) and the Ultimate Ears Wonderboom (rated 2.9/5).
Pros: Small size.
Cons: Bass isn’t as deep as the top-ranked speakers and is a little thuddy. Not much improvement over the previous Ultimate Ears Wonderboom 3 besides the USB-C charging port.
Full Ultimate Ears Wonderboom 4 review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 87dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom 3
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- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom
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Skullcandy Terrain: $49.94 Amazon eBay
Pros: IPX7 rated with a nylon wrist wrap for carrying. 14 hour battery life. Multi-Link pairs it with other Skullcandy speakers.
Cons: No bass, very rolled off treble. Distortion in the treble. Just doesn’t sound good
Full Skullcandy Terrain review and specifications →
| Amplifier Power | 2 x 6W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 6.3” x 3.1” x 3.1” (160 x 79 x 79 mm) |
| Drivers | 2x 48mm drivers + passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 90dB SPL (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (SKDY Multi-Link, up to 99 speakers) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (wrist strap) |
| TWS | Yes |
| Weight | 1 lbs (458 g) |
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