Short answer: the Harman Kardon Luna. It ranks #26 of 175 medium speakers by sound quality (rated 4.0/5) at $290.99 and is still sold new; the Sony SRS-XE300 ranks #118 (rated 2.8/5) and is discontinued, so it is only an option used. The Sony SRS-XE300’s replacement, the Sony ULT Field 3, is rated 3.4/5 at $208.
The Harman Kardon Luna is the better-sounding option. The sound is fairly balanced apart from the boosted bass. The catch: Boosted bass, and less detailed than higher-ranked speakers.
The Sony SRS-XE300 is the longer-running choice. Orientation-aware playback switches to stereo when laid flat. It is rated for 24 hours of battery against 12 for the Harman Kardon Luna. It supports LDAC Bluetooth, which the Harman Kardon Luna lacks. It has an adjustable EQ, which the Harman Kardon Luna lacks. The tradeoff: Muffled sounding, not very deep bass.
Buy the Harman Kardon Luna. It is rated higher for sound quality, and the Sony SRS-XE300 is discontinued, so it is only available used.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Luna | Sony SRS-XE300 | |
|---|---|---|
| Price | $290.99 | $94.99 Discontinued |
| Ranked | #26 of 175 in Medium Size Portable Bluetooth Speakers | #118 of 175 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes (Sony Music Center) |
| Aux Input | No | No |
| Bass Extension (-10dB) | 57Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| EQ | No | Yes (via app) |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 2.5 lbs (1.13 kg) | 2.9 lbs (1.3 kg) |
| Bluetooth Version | 5.3 | 5.2 |
| Dimensions | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) | 9.4” x 4.1” x 4.7” (238 x 105 x 119 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter | 2x 49x71mm X-Balanced speaker units + 2x passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | 16W |
| Digital Aux Input | No | No |
| Party Mode | - | Yes (Party Connect up to 100 speakers) |
| Built-in Microphone | - | Yes |
| Power Bank | - | No |
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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
Harman Kardon Luna: $290.99 Amazon $290.99 eBay
Newer model: the Harman Kardon Luna 2, ranked higher, rated 4.1/5, released Mar 2026. It adds app control and adjustable EQ. See every Harman Kardon Luna generation.
Pros: Harman Kardon Luna uses 48mm x 90mm woofer, 20mm tweeter. Its 1.13 kg, claimed 12 hours (Manufacturer specified) battery life, IP67 protection and mono playback make it a practical option for its intended room or portable use. The sound is fairly balanced apart from the boosted bass. Measured bass extension of 57Hz (-10dB).
Cons: Bass is limited by its 57Hz specification. There is no companion app. No EQ adjustment. Boosted bass, and less detailed than higher-ranked speakers.
Full Harman Kardon Luna review and specifications →
| Released | Sep 2023 (3 years ago) |
|---|---|
| Amplifier Power | 40W |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 57Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | No |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 2.5 lbs (1.13 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Harman Kardon Luna - sound demo More from Oluv’Sone →
- Alan Ross - The Anti Shill!: Onyx Studio 9 or Go Play 3? Or even the HK Luna?? More from alanrossreviews →
- Alan Ross Reviews: Beats Pill vs Harman Luna vs Bose Flex vs Soundcore Motion Plus
- Mateusz Cholewa: Harman Kardon Luna 2 UNBOXING vs HK Luna Short Test More from Mateusz Cholewa →
- Storytripper HD: Harman Kardon Luna vs Luna 2 More from storytripperhd →
- Storytripper HD: Klipsch Nashville vs Harman Kardon Luna vs Soundcore Motion 300
- Storytripper HD: Huawei Sound Joy 2 vs Tribit XSound Plus 2 vs Harman Kardon Luna
- Head-to-Head Comparisons
- Harman Kardon Luna vs Harman Kardon Luna 2
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- Harman Kardon Luna vs Bogasing M4
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- Harman Kardon Luna vs JBL Charge 5
- Harman Kardon Luna vs Tribit Xsound Mega
- Harman Kardon Luna vs Soundcore Boom 3i
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Sony SRS-XE300: $94.99 Discontinued Amazon $94.99 eBay
Newer model: the Sony ULT Field 3, ranked higher, rated 3.4/5, released Apr 2025. It adds power bank charging.
Older models: the Sony XB33 (ranked higher, rated 3.4/5), 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. Orientation-aware playback switches to stereo when laid flat. Party Connect links up to 100 speakers; fast charging (10 min charge = ~70 min playback).
Cons: Muffled sounding, not very deep bass. Hollow sounding. Worse than a XB43. Discontinued.
Full Sony SRS-XE300 review and specifications →
| Released | Jul 2022 (4 years ago) |
|---|---|
| Amplifier Power | 16W |
| App | Yes (Sony Music Center) |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.4” x 4.1” x 4.7” (238 x 105 x 119 mm) |
| Drivers | 2x 49x71mm X-Balanced speaker units + 2x passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.9 lbs (1.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- DLX Willington: FINALLY! Sony SRS XG300, SRS XE300, & SRS XE200 Are Here. Binaural Sound Samples & First Impressions More from DLXWillington →
- Danny Pops: Sony XE200 XE300 vs Bose Marshall & JBL More from DannyPops →
- GYMCADDY: Sony XE300 Review And Compared to Sony XB33 - A Muffled Mess More from GYMCADDY →
- GYMCADDY: JBL Charge 5 Vs Sony XE300 - How Can You Mess Up This Bad?
- GYMCADDY: Sony XE200 Review And Compared to Sony XB23 - It Got The XE300 Treatment
- New Stuff TV: Sony SRS-XE300 vs JBL Charge 5 More from NewStuffTV1 →
- Head-to-Head Comparisons
- Sony SRS-XE300 vs DBSONO X-Blast F37
- Sony SRS-XE300 vs Tribit Stormbox
- Sony SRS-XE300 vs Sony SRS-XB20
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