Short answer: the JBL Authentics 300 is the smarter connected-speaker choice, while the B&O Beolit 20 is the simpler portable option with wireless phone charging. JBL uniquely supports Alexa and Google Assistant together, which gives it a major everyday convenience advantage. B&O’s charging pad is useful, but it is a narrower feature benefit.
The Authentics 300 has a narrow soundstage and does not dig especially deep in the bass. The Beolit 20 has a warm presentation that will appeal to some listeners but is less neutral. Your preferred ecosystem should decide this pairing more than raw power claims.
Buy the JBL Authentics 300 if dual voice-assistant support and connected-home features matter most.
Buy the B&O Beolit 20 if wireless phone charging and a warm portable sound are the better fit.
Water resistance is not close: the B&O Beolit 20 is rated at IPX4 (splashing), well ahead of the JBL Authentics 300 at no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| JBL Authentics 300 | B&O Beolit 20 | |
|---|---|---|
| Price | $299.95 | $749.00 |
| Ranked | #41 of 90 in Boombox Size Portable Bluetooth Speakers | #43 of 90 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | Yes (Bang & Olufsen app) |
| Bass Extension (-10dB) | 45Hz | 45Hz |
| Battery Life | 8 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| EQ | Yes (App EQ) | Yes (App EQ) |
| IP Rating | None | IPX4 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | 93dB (Manufacturer specified) |
| Party Mode | Yes (Wi-Fi Multi-Room) | No |
| Power Input | AC Power cable | USB-C |
| Stereo | Partially (1 woofer) | No |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| Weight | 10.8 lbs (4.9 kg) | 6 lbs (2.7 kg) |
| Wi-Fi | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Power Bank | No | Yes (USB-C) |
| USB Playback | Yes | No |
| Built-in Microphone | Yes | Yes |
| MicroSD Playback | No | - |
| Aux Input | No | Yes |
| Amplifier Power | 100W | 240W peak |
| Dimensions | 13.5” x 7.7” x 7.1” (342 x 195.6 x 180.3 mm) | 5.3” x 9.1” x 7.4” (135 x 230 x 189 mm) |
| Drivers | 1” tweeter + 4” woofer + passive radiators | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer + dual passive radiators |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | 4.2 |
| Voice Assistants | Amazon Alexa & Google Assistant (simultaneous) | - |
| Strap | No | Yes (built-in strap) |
Related Speaker Comparisons
How JBL Authentics 300 compares with other leading options:
- Tribit Stormbox Blast vs JBL Authentics 300
- Harman Kardon Go + Play 3 vs JBL Authentics 300
- JBL Partybox Encore 2 vs JBL Authentics 300
- JBL PartyBox On-The-Go 2 Plus vs JBL Authentics 300
- JBL Partybox Encore Essential 2 vs JBL Authentics 300
Prices on this page were last checked October 2, 2026 at 10:18 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
JBL Authentics 300: $299.95 Amazon eBay
Pros: Integrates both Amazon Alexa and Google Assistant simultaneously (rare for smart speakers). Retro seventies design with leather and Quadrex grille. 100-watt amp, carries well with leather-trimmed handle. Rechargeable battery rated ~8 hours. Measured bass extension of 45Hz (-10dB).
Cons: Narrow sounding, bass not as deep as others. Peaky upper mids. No TWS. No IP rating. Not as loud as others. Not much battery life.
Full JBL Authentics 300 review and specifications →
| Amplifier Power | 100W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 13.5” x 7.7” x 7.1” (342 x 195.6 x 180.3 mm) |
| Drivers | 1” tweeter + 4” woofer + passive radiators |
| EQ | Yes (App EQ) |
| IP Rating | None |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Omnidirectional | No |
| Party Mode | Yes (Wi-Fi Multi-Room) |
| Power Bank | No |
| Power Input | AC Power cable |
| Stereo | Partially (1 woofer) |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Voice Assistants | Amazon Alexa & Google Assistant (simultaneous) |
| Weight | 10.8 lbs (4.9 kg) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Authentics 300 - sound quality test More from Oluv’Sone →
- Oluv Patreon: JBL Authentics 300 - update
- Oluv Patreon: JBL Authentics 300 - listening session
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast More from alanrossreviews →
- Head-to-Head Comparisons
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- See all 106 comparisons
B&O Beolit 20: $749.00 Amazon eBay
Pros: B&O Beolit 20 uses 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer + dual passive radiators. Its 2.7 kg, claimed 8 hours (Manufacturer specified) battery life, IPX4 protection, aux input, up to 93dB and mono playback make it a practical option for its intended room or portable use. The top doubles as a wireless phone charger. Measured bass extension of 45Hz (-10dB).
Cons: Bass is limited by its 45Hz specification.
Full B&O Beolit 20 review and specifications →
| Amplifier Power | 240W peak |
|---|---|
| App | Yes (Bang & Olufsen app) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 5.3” x 9.1” x 7.4” (135 x 230 x 189 mm) |
| Drivers | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer + dual passive radiators |
| EQ | Yes (App EQ) |
| IP Rating | IPX4 |
| Maximum SPL | 93dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in strap) |
| TWS | Yes |
| USB Playback | No |
| Weight | 6 lbs (2.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: B&O Beolit 20 vs Earfun UBoom X - everything fake? More from Oluv’Sone →
- Joy & Oluv’Sone: $600 premium Bluetooth speaker vs $115 cheapo UBoom X
- techkiste.net: B&O Beolit 20 vs Vifa Copenhagen 2.0 sound-comparison with different music-genres
- Oluv Patreon: B&O Beolit 20 - frequency response measurements
- Head-to-Head Comparisons