These sit in different size classes, so this is not a straight ranking comparison. The JBL Go 5 ranks #29 of 62 small speakers by sound quality at $54.95; the Ultimate Ears Wonderboom 4 ranks #109 of 179 medium speakers by sound quality at $64.99.
The JBL Go 5 is the lighter choice. A pocket sized fully waterproof speaker with tap to pair stereo linking, app EQ, and USB-C audio input. At 0.5 lbs (230 g) it weighs much less than the Ultimate Ears Wonderboom 4 at 0.9 lbs (420 g). It supports AAC Bluetooth, which the Ultimate Ears Wonderboom 4 lacks. It links with other speakers (Auracast), which the Ultimate Ears Wonderboom 4 cannot. Watch for: Still overpriced for what it delivers, not very different from the JBL Go 4 besides the lights.
The Ultimate Ears Wonderboom 4 is the longer-running choice. A small, tough waterproof speaker with a strap loop and USB-C charging, easy to clip on a bag for outdoor trips. It is rated for 14 hours of battery against 8 for the JBL Go 5. Watch for: Bass isn’t as deep as the top-ranked speakers and is a little thuddy.
Buy the JBL Go 5 at $54.95 for a small speaker, or the Ultimate Ears Wonderboom 4 at $64.99 for a medium speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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
| JBL Go 5 | Ultimate Ears Wonderboom 4 | |
|---|---|---|
| Price | $54.95 | $64.99 |
| Ranked | #29 of 62 in Small Size Portable Bluetooth Speakers | #109 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 8 hours, 10 with Playtime Boost (Manufacturer specified) | 14 hours (Manufacturer specified) |
| EQ | Yes | No |
| IP Rating | IP68 | IP67 |
| Party Mode | Yes (Auracast) | No |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Yes |
| TWS | Yes | Yes |
| Weight | 0.5 lbs (230 g) | 0.9 lbs (420 g) |
| Aux Input | No | No |
| Digital Aux Input | Yes (USB-C) | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC |
| Built-in Microphone | No | No |
| Bluetooth Version | 6.0 | 5.2 |
| Frequency Response | 100Hz - 19kHz (Manufacturer specified) | - |
| Dimensions | 4” x 3” x 1.7” (101 x 77 x 43 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Charging Time | 3 hours | - |
| Drivers | 45mm | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| Amplifier Power | 4.8W | - |
| Lights | Yes | - |
| Strap | Yes (built-in loop) | Yes (built-in loop) |
| Maximum SPL | - | 87dB (Manufacturer specified) |
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