Short answer: both are discontinued, so this only matters if you are buying used. Used, the Soundcore Boost “original model” pre-2021 is the better pick: it ranks #14 of 175 medium speakers by sound quality (rated 4.2/5), against #77 (rated 3.4/5) for the Sony XB33. If you want one new, the Sony ULT Field 3 replaces the Sony XB33 and is rated 3.4/5 at $208.
The Soundcore Boost “original model” pre-2021 is the better-sounding, lighter pick. 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. At 1.3 lbs (590 g) it weighs much less than the Sony XB33 at 2.4 lbs (1.1 kg). It keeps a wired aux input, which the Sony XB33 lacks. The tradeoff: Careful placement is still important for balanced bass.
The Sony XB33 is the longer-running, tougher pick. IP67 rated and lightweight (2.4 lb). It is rated for 24 hours of battery against 12 for the Soundcore Boost “original model” pre-2021. It is rated IP67 against IPX5 for the Soundcore Boost “original model” pre-2021. It supports LDAC Bluetooth, which the Soundcore Boost “original model” pre-2021 lacks. The catch: Not very loud.
Buy the Soundcore Boost “original model” pre-2021 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, buy the Sony ULT Field 3, which replaces the Sony XB33.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Soundcore Boost “original model” pre-2021 | Sony XB33 | |
|---|---|---|
| Price | $60 Discontinued | $110 Discontinued |
| Ranked | #14 of 175 in Medium Size Portable Bluetooth Speakers | #77 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Sony Music Connect App) |
| Aux Input | Yes | No |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | Yes | Yes (3 band) |
| IP Rating | IPX5 | IP67 |
| Power Bank | No | Yes (USB-A) |
| Power Input | Micro USB | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 1.3 lbs (590 g) | 2.4 lbs (1.1 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 | 5.0 |
| Drivers | 1.75” x 2 active drivers + passive radiator | 2x 48x70mm X-Balanced racetrack drivers + 2x passive radiators |
| Amplifier Power | 20W (10W × 2) | 16W RMS |
| Digital Aux Input | No | No |
| Dimensions | 8”H x 2.8”W x 2.7”D (203 x 71 x 69 mm) | 9.7” x 3.8” x 4.2” (246 x 97 x 106 mm) |
| Bass Extension (-10dB) | - | 50Hz |
| Bluetooth Latency | - | 110ms |
| Maximum SPL | - | 97dB (measured by Alan Ross Reviews) |
| Party Mode | - | Yes (Party Connect up to 100 speakers) |
| Lights | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Soundcore Boost “original model” pre-2021:
- 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.
- Head-to-Head Comparisons
- Soundcore Boost “original model” pre-2021 vs JBL Flip 6
- Soundcore Boost “original model” pre-2021 vs JBL Flip 7
- Soundcore Boost “original model” pre-2021 vs JBL Charge 6
- Soundcore Boost “original model” pre-2021 vs B&O Beosound A1 2nd gen
- Soundcore Boost “original model” pre-2021 vs B&O Beosound A1
- Soundcore Boost “original model” pre-2021 vs B&O Beosound A1 3rd gen
- Soundcore Boost “original model” pre-2021 vs Xiaomi Sound Party
- Soundcore Boost “original model” pre-2021 vs Tribit Xsound Mega
- See all 74 comparisons
Sony XB33: $110 Discontinued eBay
Newer model: the Sony ULT Field 3, ranked higher, rated 3.4/5, released Apr 2025.
Older models: the Sony SRS-XB31 (ranked lower, rated 2.8/5) and the Sony SRS-XB30 (ranked lower, rated 2.6/5). See every Sony XB and ULT generation.
Pros: IP67 rated and lightweight (2.4 lb). App-controlled color LED lighting, Party Connect links up to 100 speakers. ~19 hour real-world battery without lights. Measured bass extension of 50Hz (-10dB).
Cons: Not very loud. Upper bass peaks, midrange dip, upper midrange peaks, not very neutral. Speaker will not remain at max volume and will turn itself down automatically. Discontinued.
Full Sony XB33 review and specifications →
| Released | May 2020 (6 years ago) |
|---|---|
| Amplifier Power | 16W RMS |
| App | Yes (Sony Music Connect App) |
| Aux Input | No |
| Bass Extension (-10dB) | 50Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Latency | 110ms |
| Bluetooth Version | 5.0 |
| Digital Aux Input | No |
| Dimensions | 9.7” x 3.8” x 4.2” (246 x 97 x 106 mm) |
| Drivers | 2x 48x70mm X-Balanced racetrack drivers + 2x passive radiators |
| EQ | Yes (3 band) |
| IP Rating | IP67 |
| Lights | Yes |
| Maximum SPL | 97dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.4 lbs (1.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Sony XB33 vs XB32 vs JBL Charge 4 best £120 bluetooth speaker? More from alanrossreviews →
- Alan Ross Reviews: Sony XB23 vs XB33 - specs and measurements
- Alan Ross Reviews: Sony xb33 vs xb43 vs Soundcore Motion Plus speakers test
- Alan Ross Reviews: JBL Charge 5 vs Motion Plus and Sony XB33 - ultimate travel speaker 2021 🤗
- Alan Ross Reviews: LG Xboom Go PL7 vs JBL Charge 4 and Sony XB33 - best Bluetooth speaker?
- Alan Ross Reviews: Tribit Xsound Mega vs the world! (JBL Charge 5, Bose Flex, Sony XB33, LG PL7) 👍
- GYMCADDY: Sony XE300 Review And Compared to Sony XB33 - A Muffled Mess More from GYMCADDY →
- Head-to-Head Comparisons