Short answer: the JBL Flip 6. It ranks #12 of 144 medium speakers by sound quality, rated 4.2/5, at $129.95. The Earfun Uboom Slim ranks #41, rated 3.7/5, at $79, $50.95 cheaper, a saving that is not big enough to make up the sound-quality gap.
The case for the JBL Flip 6: A very neutral speaker, very small, almost pocket size, a huge sound quality leap over the Flip 5. The tradeoff: Not stereo.
The case for the Earfun Uboom Slim: Excellent pricing, strong waterproof build (IPX7), good battery life (16 hours), smooth sound with volume compensation, speakerphone capability. The catch: Not as deep bass as others.
Buy the JBL Flip 6. It is rated higher for sound quality, and the $50.95 saving on the Earfun Uboom Slim is not enough to make up the difference.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Flip 6 | Earfun Uboom Slim | |
|---|---|---|
| Price | $129.95 | $79 |
| Ranked | #12 of 144 in Medium Size Portable Bluetooth Speakers | #41 of 144 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 56Hz | ~63Hz |
| Battery Life | 12 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes (3 band) | No |
| IP Rating | IP67 | IPX7 |
| Bluetooth Latency | 116ms | - |
| Maximum SPL | 98dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (PartyBoost up to 100 speakers) | - |
| Power Bank | No | - |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.2 lbs (544 g) | 1.2 lbs (560 g) |
| Bluetooth Codecs | AAC, SBC | SBC |
| Bluetooth Version | 5.1 | 5.2 |
| Dimensions | 6.9” x 2.7” x 2.8” (176 x 68 x 72 mm) | 2.6”H x 7.1”W x 2.6”D (65 x 180 x 65 mm) |
| Drivers | 44mm x 80mm woofer, 16mm tweeter | 45mm speaker drivers |
| Power Input | USB-C | USB-C |
| Amplifier Power | 30W | 20W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | - |
Related Speaker Comparisons
More worthwhile head-to-heads for JBL Flip 6:
- JBL Flip 6 vs Earfun Uboom L
- JBL Flip 6 vs Soundcore Motion 300
- JBL Flip 6 vs Soundcore Motion+
- Soundcore Boost “upgraded” 2021 vs JBL Flip 6
- JBL Flip 6 vs Minirig 4
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
JBL Flip 6: $129.95 Amazon B&H Photo Video eBay
Newer model: the JBL Flip 7, rated 4.2/5.
Pros: A very neutral speaker, very small, almost pocket size, a huge sound quality leap over the Flip 5. Measured bass extension of 56Hz (-10dB).
Cons: Not stereo. Some slight upper mids emphasis. The TL version (made in Vietnam) tweeter can sound somewhat scratchy and doesn’t sound as good as the GG version (made in China)
Full JBL Flip 6 review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Latency | 116ms |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 6.9” x 2.7” x 2.8” (176 x 68 x 72 mm) |
| Drivers | 44mm x 80mm woofer, 16mm tweeter |
| EQ | Yes (3 band) |
| IP Rating | IP67 |
| Maximum SPL | 98dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.2 lbs (544 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Flip 7 is screech-fest heaven! vs Flip 6! More from alanrossreviews →
- Alan Ross Reviews: Bose Soundlink Flex or JBL Flip 6 (eq adjusted) or Denon Envaya - best speaker for travel!
- Alan Ross Reviews: JBL Flip 6 vs Maxsound Plus and Soundcore Boost - ultimate travel speaker!
- Alan Ross Reviews: Bose Soundlink Flex Review! vs JBL Flip 6 and JBL Charge 5. Travel heaven?? 🤞
- CEONTHEMAKING: Earfun Uboom L - This Speaker Replaced My JBL Flip 6… More from CEONTHEMAKING →
- Alan Ross Reviews: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
- Alan Ross Reviews: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
- GYMCADDY: JBL Flip 7 Review - Is It Worth Upgrading Over The JBL Flip 6 Or Flip 5? More from GYMCADDY →
- SpeakerBlowUpMan Lee: Broke Man’s JBL Flip 6! Miatone Boompro Bluetooth Speaker Review
- Techder Audios: JBL Flip 6 Martin Garrix Edition VS Wisetiger P3 "PRICEY VS REAL CHEAP?!" More from techderaudios →
- Alan Ross Reviews: Mifa WildRod Review and new firmware comparison vs JBL Flip 6 - things got interesting 👀
- New Stuff TV 2: Sony ULT Field 1 vs JBL Flip 6, JBL Charge 5 & Soundcore Motion 300 More from NewStuffTV1 →
- FishBee Product Reviews: Xiaomi Mi Sound Outdoor 30W Speaker vs JBL Flip 6 - CRAZY GOOD! More from FishBee Product Reviews →
- Audio y Mas 🔊: Altavoces JBL Flip 6 vs W-King D320: ¿Cuál es el mejor en calidad de sonido? 🔊
- Alan Ross Reviews: JBL Flip 6 vs JBL Charge 4 and JBL Charge 3 - small one or a large one? 🤷♂️
- Jay’s Straight Up Reviews & More: JBL Flip 6 vs Ultimate Ears Wonderboom 3 (Indoor Mode)⚔️ Battle of the Handheld Bluetooth Speakers. More from JaysStraightUpReviews →
- Daniel Pérez: Tronsmart T7 vs JBL Flip 6
- Alan Ross Reviews: JBL Flip 6 vs Marshall Emberton review - mono or pseudo surround sound? 🤷♀️
- Luan Tech: JBL FLIP 6 vs LG XBOOM XG5 COMPARATIVO COMPLETO!
- Audio 503: Tronsmart T7 Lite (24w) vs JBL Flip 6 (30w)
- Jay’s Straight Up Reviews & More: Newly Released! Skullcandy Terrain XL 🦨 Quick Overview & Sound Comparison with JBL Flip 6 & Tozo PA1
- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best? More from Oluv’Sone →
- Head-to-Head Comparisons
Earfun Uboom Slim: $79 eBay
Pros: Excellent pricing, strong waterproof build (IPX7), good battery life (16 hours), smooth sound with volume compensation, speakerphone capability. Measured bass extension of ~63Hz (-10dB).
Cons: Not as deep bass as others. Warm tuned, peaks in the mids and lower treble, rolled off upper treble
Full Earfun Uboom Slim review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~63Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 2.6”H x 7.1”W x 2.6”D (65 x 180 x 65 mm) |
| Drivers | 45mm speaker drivers |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.2 lbs (560 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Earfun Uboom Slim vs Tribit Xsound Plus 2
- Earfun Uboom Slim vs Soundcore Boom 3i
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- See all 16 comparisons