Short answer: the Earfun Uboom Slim. It ranks #38 of 135 medium speakers by sound quality at $79; the Bose Soundlink Revolve+ II ranks #45 and costs $249, so there is not much of a tradeoff to weigh.
What sells the Bose Soundlink Revolve+ II: Its true 360° sound stays consistent no matter where you stand around it, unlike most portable speakers. What doesn’t: it has overly boosted bass, a warm overall sound, boosted mids, rolled off treble, and only an IP55 water rating.
The Earfun Uboom Slim’s pitch: It has excellent pricing, a strong IPX7 waterproof build, good 16-hour battery life, smooth sound with volume compensation, and speakerphone capability. The compromise: its bass isn’t as deep as others, it’s warm tuned with peaks in the mids and lower treble, and the upper treble is rolled off.
Buy the Earfun Uboom Slim. It ranks higher for sound quality than the Bose Soundlink Revolve+ II and costs less, so there is no real case for the other one.
Specifications Side By Side
| Bose Soundlink Revolve+ II | Earfun Uboom Slim | |
|---|---|---|
| Price | $249.00 | $79 |
| Ranked | #45 of 135 in Medium Size Portable Bluetooth Speakers | #38 of 135 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | - |
| Battery Life | 17 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| IP Rating | IP55 | IPX7 |
| Power Input | Micro USB | USB-C |
| Stereo | No | Yes |
| Weight | 2 lbs / 0.91 kg | 1.2 lbs / 560 g |
| Bluetooth Version | 4.1 | 5.2 |
| Dimensions | 3.2" x 6" x 3.2" (82 x 152 x 82 mm) | - |
| App | Bose Connect | - |
| Built in Microphone | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| EQ | No | - |
| Drivers | 1x omnidirectional full-range transducer + 2x passive radiators (driver size undisclosed by Bose) | 45mm speaker drivers |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | ~63Hz |
| Output Power | - | 20W |
The Two Speakers In Full
Bose Soundlink Revolve+ II: $249.00 Amazon
Pros: True 360° sound stays consistent no matter where you stand around it, unlike most portable speakers.
Cons: Overly boosted bass, warm sounding. Boosted mids. Rolled off treble. Only IP55.
Full Bose Soundlink Revolve+ II review and specifications →
| App | Bose Connect |
|---|---|
| Aux Input | Yes |
| Battery Life | 17 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.1 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.2" x 6" x 3.2" (82 x 152 x 82 mm) |
| Drivers | 1x omnidirectional full-range transducer + 2x passive radiators (driver size undisclosed by Bose) |
| EQ | No |
| IP Rating | IP55 |
| Power Input | Micro USB |
| Stereo | No |
| Weight | 2 lbs / 0.91 kg |
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Earfun Uboom Slim: $79
Pros: Excellent pricing, strong waterproof build (IPX7), good battery life (16 hours), smooth sound with volume compensation, speakerphone capability
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 →
| 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 |
| Drivers | 45mm speaker drivers |
| IP Rating | IPX7 |
| Output Power | 20W |
| Power Input | USB-C |
| Stereo | Yes |
| Weight | 1.2 lbs / 560 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons