Short answer: the Bose Soundlink Flex for better sound quality, the Ultimate Ears Wonderboom 4 for the lower price. The Bose Soundlink Flex ranks #34 of 136 medium speakers at $89. The Ultimate Ears Wonderboom 4 ranks #84 at $59.99, $29.01 cheaper.
What the Ultimate Ears Wonderboom 4 offers: A small, IP67-rated design that floats and charges over USB-C. Watch for: Its bass does not reach as deep as the top-ranked speakers and sounds a little thuddy; beyond USB-C, it is not much of an upgrade over the Wonderboom 3.
What the Bose Soundlink Flex offers: The Soundlink Flex is rugged, IP67 rated, and floats, but its warm, boosted bass can obscure midrange detail.
Buy the Ultimate Ears Wonderboom 4 if the price matters more than sound quality. Buy the Bose Soundlink Flex if sound quality matters more than the price.
Specifications Side By Side
| Ultimate Ears Wonderboom 4 | Bose Soundlink Flex | |
|---|---|---|
| Price | $59.99 | $89.00 |
| Ranked | #84 of 136 in Medium Size Portable Bluetooth Speakers | #34 of 136 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | - | 56Hz |
| Battery Life | - | 12 hours (Manufacturer specified) |
| Bluetooth Latency | - | 33ms |
| Max Volume | - | 96dB |
| Power Input | - | USB-C |
| Stereo | - | No |
| Weight | - | 1.3 lbs / 589 g |
| IP Rating | - | IP67 |
| Bluetooth Version | - | 4.2 |
| Dimensions | - | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) |
| Drivers | - | 1x 60mm full-range driver + 2x passive radiators |
| TWS | - | Yes |
| Party Mode | - | Yes (Bose Party mode) |
| App | - | Yes |
| EQ | - | No |
| Built in Microphone | - | Yes |
| Power Bank | - | - |
| Aux Input | - | - |
| Digital Aux Input | - | No |
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The Two Speakers In Full
Ultimate Ears Wonderboom 4: $59.99 Amazon
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 | |
|---|---|
| Aux Input | |
| Bass Extension (-10dB) | |
| Battery Life | |
| Bluetooth Latency | |
| Bluetooth Version | |
| Built in Microphone | |
| Digital Aux Input | |
| Dimensions | |
| Drivers | |
| EQ | |
| IP Rating | |
| Max Volume | |
| Party Mode | |
| Power Bank | |
| Power Input | |
| Stereo | |
| TWS | |
| Weight |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
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Bose Soundlink Flex: $89.00 Amazon
Pros: IP67 rated; rugged enough to survive drops from several feet and floats. Around 12 hours of battery at moderate volume.
Cons: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail
Full Bose Soundlink Flex review and specifications →
| App | Yes |
|---|---|
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Latency | 33ms |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) |
| Drivers | 1x 60mm full-range driver + 2x passive radiators |
| EQ | No |
| IP Rating | IP67 |
| Max Volume | 96dB |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs / 589 g |
As an eBay Partner, we may be compensated if you make a purchase.
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