Short answer: both are discontinued, and they are rated the same for sound quality (#75 and #76 of 164 medium speakers). Either one is only an option used, so choose on condition and price. If you want one new, the Earfun Uboom L ranks #2 at $49.79.
Buy the Xiaomi Mi Portable or the Sony XB33, whichever you find used in better condition; both are discontinued. For a new speaker, start with the Earfun Uboom L instead.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Xiaomi Mi Portable | Sony XB33 | |
|---|---|---|
| Price | $55 Discontinued | $110 Discontinued |
| Ranked | #75 of 164 in Medium Size Portable Bluetooth Speakers | #76 of 164 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 13 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Weight | 0.8 lbs (373 g) | 2.4 lbs (1.1 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.0 |
| Dimensions | 8.4” x 2.9” x 2.9” (213 x 74 x 74 mm) | 9.7” x 3.8” x 4.2” (246 x 97 x 106 mm) |
| Frequency Response | 80Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 16W | 16W RMS |
| Aux Input | Yes (3.5mm) | No |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Built-in Microphone | Yes | - |
| Power Input | USB-C (5V/1A) | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Drivers | 2x 57mm full-range drivers + 2x passive radiators | 2x 48x70mm X-Balanced racetrack drivers + 2x passive radiators |
| IP Rating | IPX7 | IP67 |
| Digital Aux Input | No | No |
| EQ | Yes | Yes (3 band) |
| App | No | Yes (Sony Music Connect App) |
| Bass Extension (-10dB) | - | 50Hz |
| Bluetooth Latency | - | 110ms |
| Maximum SPL | - | 97dB (measured by Alan Ross Reviews) |
| Party Mode | - | Yes (Party Connect up to 100 speakers) |
| Power Bank | - | Yes (USB-A) |
| Lights | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Xiaomi Mi Portable:
- JBL Charge 6 vs Xiaomi Mi Portable
- JBL Flip 7 vs Xiaomi Mi Portable
- Tronsmart Element Force vs Xiaomi Mi Portable
- Soundcore 3 vs Xiaomi Mi Portable
- Bose Soundlink Mini 2 vs Xiaomi Mi Portable
Prices on this page were last checked October 4, 2026 at 9:58 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
Xiaomi Mi Portable: $55 Discontinued Amazon eBay
Pros: Good battery life for a 16W speaker: around 12 hours at moderate volume. USB-C charging, stereo pairing support.
Cons: A bit of a sharp treble. Discontinued.
Full Xiaomi Mi Portable review and specifications →
| Amplifier Power | 16W |
|---|---|
| App | No |
| Aux Input | Yes (3.5mm) |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.4” x 2.9” x 2.9” (213 x 74 x 74 mm) |
| Drivers | 2x 57mm full-range drivers + 2x passive radiators |
| EQ | Yes |
| Frequency Response | 80Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Input | USB-C (5V/1A) |
| Stereo | Yes |
| TWS | Yes |
| Weight | 0.8 lbs (373 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Xiaomi Mi Portable vs Sony ULT Field 3
- Xiaomi Mi Portable vs Bose Soundlink Mini
- Xiaomi Mi Portable vs Bose Soundlink Mini 2
- Xiaomi Mi Portable vs JBL Flip 5
- Xiaomi Mi Portable vs Soundcore 3
- Xiaomi Mi Portable vs JBL Flip 4
- Xiaomi Mi Portable vs Sony XB23
- Xiaomi Mi Portable vs Tronsmart Element Force
- See all 10 comparisons
Sony XB33: $110 Discontinued eBay
Newer model: the Sony ULT Field 3, ranked higher, rated 3.4/5.
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 →
| 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 xb43 vs Soundcore Motion Plus speakers test More from alanrossreviews →
- Alan Ross Reviews: JBL Charge 5 vs Motion Plus and Sony XB33 - ultimate travel speaker 2021 🤗
- GYMCADDY: Sony XE300 Review And Compared to Sony XB33 - A Muffled Mess More from GYMCADDY →
- Alan Ross Reviews: Tribit Xsound Mega vs the world! (JBL Charge 5, Bose Flex, Sony XB33, LG PL7) 👍
- Alan Ross Reviews: Sony XB33 vs XB32 vs JBL Charge 4 best £120 bluetooth speaker?
- Alan Ross Reviews: LG Xboom Go PL7 vs JBL Charge 4 and Sony XB33 - best Bluetooth speaker?
- Head-to-Head Comparisons