Short answer: the Bose Soundlink Flex, if you are buying new. The Soundcore Boost “original model” pre-2021 ranks higher than it (#14 vs #38 of 175 medium speakers, 4.2/5 vs 3.8/5) but is discontinued, so only consider it used; the Bose Soundlink Flex is still sold new at $159.
The Soundcore Boost “original model” pre-2021 is the better-sounding choice. At 1.3 lbs (590 g), Soundcore Boost “original model” pre-2021 combines 1.75” x 2 active drivers + passive radiator with Bluetooth and aux. It keeps a wired aux input, which the Bose Soundlink Flex lacks. It has an adjustable EQ, which the Bose Soundlink Flex lacks. It plays in stereo from a single unit, unlike the Bose Soundlink Flex. The catch: Careful placement is still important for balanced bass.
The Bose Soundlink Flex is the tougher pick. IP67 rated; rugged enough to survive drops from several feet and floats. It is rated IP67 against IPX5 for the Soundcore Boost “original model” pre-2021. It charges over USB-C rather than Micro USB. The catch: Warm sounding with overly boosted bass which drowns out midrange detail.
Buy the Bose Soundlink Flex if you want one new; the Soundcore Boost “original model” pre-2021 is discontinued, so only look for it used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Soundcore Boost “original model” pre-2021 | Bose Soundlink Flex | |
|---|---|---|
| Price | $60 Discontinued | $159.00 |
| Ranked | #14 of 175 in Medium Size Portable Bluetooth Speakers | #38 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | No |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | No |
| IP Rating | IPX5 | IP67 |
| Power Bank | No | - |
| Power Input | Micro USB | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 1.3 lbs (590 g) | 1.3 lbs (589 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 4.2 | 4.2 |
| Drivers | 1.75” x 2 active drivers + passive radiator | 1x 60mm full-range driver + 2x passive radiators |
| Amplifier Power | 20W (10W × 2) | - |
| Digital Aux Input | No | No |
| Dimensions | 8”H x 2.8”W x 2.7”D (203 x 71 x 69 mm) | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) |
| Bass Extension (-10dB) | - | 56Hz |
| Bluetooth Latency | - | 33ms |
| Maximum SPL | - | 96dB (measured by Alan Ross Reviews) |
| Party Mode | - | Yes (Bose Party mode) |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
How Soundcore Boost “original model” pre-2021 compares with other leading options:
- Soundcore Motion 300 vs Soundcore Boost “original model” pre-2021
- Soundcore Motion+ vs Soundcore Boost “original model” pre-2021
- Soundcore Boost “upgraded” 2021 vs Soundcore Boost “original model” pre-2021
- B&O Beosound A1 vs Soundcore Boost “original model” pre-2021
- B&O Beosound A1 2nd gen vs Soundcore Boost “original model” pre-2021
Prices on this page were last checked October 12, 2026 at 4:13 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 Boost “original model” pre-2021: $60 Discontinued eBay
Newer model: the Soundcore Boost “upgraded” 2021, ranked higher, rated 4.4/5, released Jul 2021 (also discontinued). It adds power bank charging and stereo pairing, but drops the aux input. Water resistance goes from IPX5 to IPX7. See every Soundcore Boost generation.
Pros: At 590 g, Soundcore Boost “original model” pre-2021 combines 1.75” x 2 active drivers + passive radiator with Bluetooth and aux. Claimed 12 hours (manufacturer specified) battery life, ipx5 protection and stereo playback make its feature set practical for its intended room or portable use. A great sounding, neutral speaker.
Cons: Careful placement is still important for balanced bass. This old version charges over micro-USB. Discontinued.
Full Soundcore Boost “original model” pre-2021 review and specifications →
| Released | Jun 2017 (9 years ago) |
|---|---|
| Amplifier Power | 20W (10W × 2) |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8”H x 2.8”W x 2.7”D (203 x 71 x 69 mm) |
| Drivers | 1.75” x 2 active drivers + passive radiator |
| EQ | Yes |
| IP Rating | IPX5 |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | No |
| Weight | 1.3 lbs (590 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
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Bose Soundlink Flex: $159.00 Amazon $159.00 eBay
Newer model: the Bose Soundlink Flex 2nd gen, ranked higher, rated 3.8/5, released Sep 2024. It adds adjustable EQ, AAC and aptX Adaptive. See every Bose SoundLink Flex, Micro, Max and Plus generation.
Pros: IP67 rated; rugged enough to survive drops from several feet and floats. Around 12 hours of battery at moderate volume. Measured bass extension of 56Hz (-10dB).
Cons: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail
Full Bose Soundlink Flex review and specifications →
| Released | Oct 2021 (5 years ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| 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 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| 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 →
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- Oluv Patreon: Bose Soundlink Plus & Flex compared
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