Short answer: the Soundcore Motion+. It ranks #3 of 136 medium speakers by sound quality at $79.99; the Bose Soundlink Flex ranks #34 and costs $84.99, which makes this an easy call rather than a real tradeoff.
What the Soundcore Motion+ offers: The previous best sounding in class, still a great speaker with separate tweeters, more bass at full volume and better off-axis treble frequency response than the Uboom L. Just okay with the default EQ, I highly recommend using this EQ setting from r/kai7895 to get it more neutral. To achieve the absolute best sound you’ll need the Wavelet app (Android only) and set the provided Wavelet EQ in there too. Turn off the wavelet EQ for outdoor use. An alternative is Oluv’s EQ which only needs the Soundcore app EQ. Watch for: Not quite as neutral or detailed as the Uboom L. Without the above EQ, this speaker will rank around #25 in the rankings.
What the Bose Soundlink Flex offers: IP67 rated; rugged enough to survive drops from several feet and floats. Around 12 hours of battery at moderate volume. Watch for: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail
Buy the Soundcore Motion+. It ranks higher for sound quality than the Bose Soundlink Flex and costs less, so the other one has nothing left to offer.
Specifications Side By Side
| Soundcore Motion+ | Bose Soundlink Flex | |
|---|---|---|
| Price | $79.99 used, Discontinued | $84.99 |
| Ranked | #3 of 136 in Medium Size Portable Bluetooth Speakers | #34 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | - |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 54Hz | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | aptX, SBC | - |
| Built in Microphone | Yes | Yes |
| EQ | Yes (9 band) | No |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 130ms | 33ms |
| Max Volume | 104dB | 96dB |
| Party Mode | No | Yes (Bose Party mode) |
| Power Bank | No | - |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 2.3 lbs / 1050 g | 1.3 lbs / 589 g |
| Bluetooth Version | 5.0 | 4.2 |
| Dimensions | 10.1" x 3.1" x 3.2" (257 x 79 x 81 mm) | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) | - |
| Output Power | 30W | - |
| Drivers | 2x 70mm (2.75") neodymium woofers + 2x silk dome tweeters + 2x passive radiators | 1x 60mm full-range driver + 2x passive radiators |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
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- JBL Charge Essential 2 vs Tribit Xsound Go
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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
Soundcore Motion+: $79.99 used, Discontinued Amazon eBay
Pros: The previous best sounding in class, still a great speaker with separate tweeters, more bass at full volume and better off-axis treble frequency response than the Uboom L. Just okay with the default EQ, I highly recommend using this EQ setting from r/kai7895 to get it more neutral. To achieve the absolute best sound you’ll need the Wavelet app (Android only) and set the provided Wavelet EQ in there too. Turn off the wavelet EQ for outdoor use. An alternative is Oluv’s EQ which only needs the Soundcore app EQ.
Cons: Not quite as neutral or detailed as the Uboom L. Without the above EQ, this speaker will rank around #25 in the rankings. Discontinued.
Full Soundcore Motion+ review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 54Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | aptX, SBC |
| Bluetooth Latency | 130ms |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10.1" x 3.1" x 3.2" (257 x 79 x 81 mm) |
| Discontinued | Yes |
| Drivers | 2x 70mm (2.75") neodymium woofers + 2x silk dome tweeters + 2x passive radiators |
| EQ | Yes (9 band) |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 104dB |
| Omnidirectional | No |
| Output Power | 30W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.3 lbs / 1050 g |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Charge 5 vs Motion Plus and Sony XB33 - ultimate travel speaker 2021 🤗 More from alanrossreviews →
- Alan Ross Reviews: 2x Soundcore Boost (stereo) vs Motion Boom and Motion+ - Best Soundcore speaker? 😋
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Bose Soundlink Flex: $84.99 Amazon eBay
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 |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs / 589 g |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex More from Oluv’Sone →
- Alan Ross Reviews: Bose Soundlink Flex Review! vs JBL Flip 6 and JBL Charge 5. Travel heaven?? 🤞 More from alanrossreviews →
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex
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- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex “Inspired” Speakers More from JaysStraightUpReviews →
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Alan Ross Reviews: Bose Soundlink Flex or JBL Flip 6 (eq adjusted) or Denon Envaya - best speaker for travel!
- Alan Ross Reviews: Bose Soundlink Flex or Beosound A1 (1st gen) - ultimate compact speaker 😇
- Alan Ross Reviews: Bose Soundlink Flex or JBL Flip 6 (eq adjusted) or Denon Envaya - best speaker for travel!
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex “Inspired” Speakers
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