Short answer: the JBL Flip 7, if you are buying new. The JBL Flip 5 ranks higher than the Ultimate Ears Wonderboom 2 (#79 vs #112 of 182 medium speakers) but is discontinued; its replacement, the JBL Flip 7, is rated 4.2/5 at $149.95 and is still sold new.
The JBL Flip 5 is the better-sounding, deeper-bass pick. A compact, light waterproof speaker with a carry strap and USB-C charging. Its bass reaches about 59Hz before falling 10dB, against 82Hz for the Ultimate Ears Wonderboom 2. Alan Ross Reviews measured it at 92dB at full volume, against 88dB for the Ultimate Ears Wonderboom 2. It links with other speakers (PartyBoost up to 100 speakers), which the Ultimate Ears Wonderboom 2 cannot. Watch for: Boosted upper bass.
The Ultimate Ears Wonderboom 2 is the lighter choice. A small waterproof speaker that floats and is light enough to toss in a bag for the pool or beach. At 0.9 lbs (420 g) it weighs noticeably less than the JBL Flip 5 at 1.2 lbs (540 g). The tradeoff: Not stereo, barely any bass, recessed treble.
Buy the JBL Flip 7, the replacement for the discontinued JBL Flip 5; it is rated higher for sound quality than the Ultimate Ears Wonderboom 2.
Want more options? Browse the full Portable Bluetooth rankings.
Measured Differences
- Output: the JBL Flip 5 was measured at 92 dB maximum against 88 dB for the Ultimate Ears Wonderboom 2, so it gets somewhat louder before it runs out of headroom.
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Specifications Side By Side
| JBL Flip 5 | Ultimate Ears Wonderboom 2 | |
|---|---|---|
| Price | $64.97 Discontinued | $80 |
| Ranked | #79 of 182 in Medium Size Portable Bluetooth Speakers | #112 of 182 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 59Hz | 82Hz |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth Latency | 200ms | - |
| Maximum SPL | 92dB (measured by Alan Ross Reviews) | 88dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (PartyBoost up to 100 speakers) | No |
| Weight | 1.2 lbs (540 g) | 0.9 lbs (420 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.1 |
| Drivers | 1x 44x80mm fullrange | 2x 40mm active drivers + 2x passive radiators |
| Dimensions | 7.1” x 2.7” x 2.9” (181 x 69 x 74 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 20W RMS | - |
| Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | No | No |
| EQ | Yes (via JBL app, sunsetted in 2024) | No |
| IP Rating | IPX7 | IP67 |
| Digital Aux Input | No | No |
| Omnidirectional | No | Yes |
| App | Yes | No |
| Stereo | No | No |
| TWS | Yes | Yes |
| Power Input | USB-C | Micro USB |
| Strap | Yes (lanyard) | Yes (built-in loop) |
Watch Them Compared
Videos and reviews that test both speakers side by side.
Where the Ratings Come From
- JBL Flip 5: reviews by Alan Ross, DLX Willington and Techder Audios.
- Ultimate Ears Wonderboom 2: reviews by Alan Ross and Danny Pops.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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