Short answer: the Bose Soundlink Flex. It ranks #38 of 182 medium speakers by sound quality, rated 3.8/5, at $79.99. The DBSONO X-Blast F37 ranks #118, rated 2.8/5, at $69.99, $10 cheaper, not enough of a saving to outweigh the sound-quality gap.
The Bose Soundlink Flex is the better-sounding, longer-running pick. A small, rugged waterproof speaker that survives drops and floats, with a warm, bass forward sound for casual outdoor use. It is rated for 12 hours of battery against 8 for the DBSONO X-Blast F37. At 1.3 lbs (589 g) it weighs noticeably less than the DBSONO X-Blast F37 at 1.7 lbs (771 g). It is rated IP67 against IPX5 for the DBSONO X-Blast F37. The catch: Warm sounding with overly boosted bass which drowns out midrange detail.
The DBSONO X-Blast F37 is the deeper-bass choice. An affordable splash resistant speaker with a separate woofer and tweeter, long Bluetooth range and stereo pairing. Its bass reaches about 49Hz before falling 10dB, against 56Hz for the Bose Soundlink Flex. It has an adjustable EQ, which the Bose Soundlink Flex lacks. Watch for: Very recessed lower mids, peaky upper mids, just not a great frequency response overall.
Buy the Bose Soundlink Flex. It is rated higher for sound quality, and saving $10 with the DBSONO X-Blast F37 does not make up for the sound-quality gap.
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Prices on this page were last checked November 14, 2026 at 6:17 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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Specifications Side By Side
| Bose Soundlink Flex | DBSONO X-Blast F37 | |
|---|---|---|
| Price | $79.99 | $69.99 |
| Ranked | #38 of 182 in Medium Size Portable Bluetooth Speakers | #118 of 182 in Medium Size Portable Bluetooth Speakers |
| App | Yes | - |
| Bass Extension (-10dB) | 56Hz | 49Hz |
| Battery Life | 12 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | No | Yes (Bass Boost) |
| IP Rating | IP67 | IPX5 |
| Bluetooth Latency | 33ms | - |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Bose Party mode) | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (589 g) | 1.7 lbs (771 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 6.0 |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) | 8” x 2.5” x 3.6” (202 x 64 x 90.9 mm) |
| Drivers | 1x 60mm full-range driver + 2x passive radiators | 25W woofer, 10W tweeter, passive radiator |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Aux Input | No | No |
| Strap | Yes (built-in loop) | - |
| Frequency Response | - | 100Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 35W |
Where the Ratings Come From
- Bose Soundlink Flex: reviews by Joy & Oluv’Sone, Oluv and Alan Ross.
- DBSONO X-Blast F37: reviews by Alan Ross.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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