Short answer: the Bose Soundlink Revolve+ II on measured sound quality, the Ultimate Ears Wonderboom 4 on price. The Bose Soundlink Revolve+ II ranks #45 of 136 medium speakers at $259. The Ultimate Ears Wonderboom 4 ranks #84 at $59.99, $199.01 cheaper.
What the Bose Soundlink Revolve+ II offers: True 360° sound stays consistent no matter where you stand around it, unlike most portable speakers. Watch for: Overly boosted bass, warm sounding. Boosted mids. Rolled off treble. Only IP55.
What the Ultimate Ears Wonderboom 4 offers: Small size. Watch for: 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.
Buy the Bose Soundlink Revolve+ II when sound quality outweighs the price for you, and the Ultimate Ears Wonderboom 4 when the price outweighs sound quality instead.
Specifications Side By Side
| Bose Soundlink Revolve+ II | Ultimate Ears Wonderboom 4 | |
|---|---|---|
| Price | $259.00 | $59.99 |
| Ranked | #45 of 136 in Medium Size Portable Bluetooth Speakers | #84 of 136 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Battery Life | 17 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| IP Rating | IP55 | IP67 |
| Power Input | Micro USB | USB-C |
| Stereo | No | No |
| Omnidirectional | Yes | Yes |
| Weight | 2 lbs / 0.91 kg | 0.9 lbs / 420 g |
| Bluetooth Version | 4.1 | 5.2 |
| Dimensions | 3.2" x 6" x 3.2" (82 x 152 x 82 mm) | 4.1" x 3.8" (104 x 95.3 mm) |
| App | Bose Connect | No |
| Built in Microphone | Yes | No |
| Bluetooth Codecs | SBC | - |
| EQ | No | No |
| Drivers | 1x omnidirectional full-range transducer + 2x passive radiators (driver size undisclosed by Bose) | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | - |
| Bluetooth Latency | - | - |
| Max Volume | - | 87dB |
| TWS | - | Yes |
| Party Mode | - | No |
| Power Bank | - | No |
Related Speaker Comparisons
A few more comparisons worth a look in the same class:
- Bose Soundlink Revolve+ vs Klipsch Groove/Heritage Groove
- W-King D320 vs KEF Muo gen2
- JBL Charge 5 Wifi vs W-King D320
- Soundcore Boost “upgraded” 2021 vs Bose Soundlink Revolve+ II
- Soundcore Boost “original model” pre-2021 vs Bose Soundlink Revolve+ II
Prices on this page were last checked August 27, 2026 at 10:09 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
Bose Soundlink Revolve+ II: $259.00 Amazon eBay
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 |
| Omnidirectional | Yes |
| Power Input | Micro USB |
| Stereo | No |
| Weight | 2 lbs / 0.91 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Bose Soundlink Revolve+ II vs Bose Soundlink Revolve+
- Bose Soundlink Revolve+ II vs W-King D320
- Bose Soundlink Revolve+ II vs Soundcore Glow
- Bose Soundlink Revolve+ II vs JBL Pulse 5
- Bose Soundlink Revolve+ II vs Bose Soundlink Revolve
- Bose Soundlink Revolve+ II vs Tribit Stormbox Flow
- Bose Soundlink Revolve+ II vs Xiaomi Sound Outdoor
- Bose Soundlink Revolve+ II vs Tribit Stormbox Pro
- See all 75 comparisons
Ultimate Ears Wonderboom 4: $59.99 Amazon eBay
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 |
| Bass Extension (-10dB) | |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth Latency | |
| 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 |
| Max Volume | 87dB |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| 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
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Megaboom 3
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Wonderboom 4 vs LG Xboom Grab
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom
- Ultimate Ears Wonderboom 4 vs Soundcore 2
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Boom 4
- Ultimate Ears Wonderboom 4 vs Tribit Stormbox 2
- See all 77 comparisons