| Name | EarFun UBOOM X | JBL Boombox 4 | 
|---|---|---|
| Image | ![]()  | 
![]()  | 
| Type | Large | Large | 
| MSRP | $189.99 | $549.95 | 
| Released | 2024 | 2025 | 
| Availability | Available | Available | 
| Current price | MyEarFun, Amazon | Amazon | 
| Speaker configuration | ||
| Audio channels | 2.0 (stereo) | 2.0 (stereo) | 
| Woofers (or full range): | 2× 4″ | 2× 5″ | 
| Tweeters: | 2× 20 mm | 2× 0.75″ | 
| Subwoofers: | - | - | 
| Audio specs & features | ||
| Watts RMS | 80 W | 210 W (plugged in), 200 (battery) | 
| Frequency range | Not specified | 37.0 Hz - 20 kHz | 
| Wireless stereo pairing? | ✔ TWS | ✔ via app | 
| Party mode? (mono) | ✔ (Party Mode) | ✔ Auracast | 
| Other (special) audio features? | Speakerphone | AI Sound Boost, PlayTime boost (+6h) | 
| Connectivity | ||
| Bluetooth version? | 5.3 | 5.4 | 
| Wi-Fi? | ❌ | ❌ | 
| NFC? (for pairing) | ❌ | ❌ | 
| Radio? | ❌ | ❌ | 
| Audio inputs & outputs | ||
| Buit-in mic? (and function) | ✔ (calls, voice control) | ❌ | 
| Guitar/mic input? | ❌ | ❌ | 
| USB-A playback? | ❌ | ✔ (USB-C) | 
| 3.5 mm AUX in? | ✔ | ❌ | 
| 3.5 mm AUX out? | ❌ | ❌ | 
| Other in/outputs? | ❌ | ❌ | 
| Battery, power & charging | ||
| Battery? | ✔ | ✔ | 
| Battery life | 30 hours | 28 hours | 
| Charge time | 4 hrs | 3 hrs | 
| Battery capacity | 60.48 Wh | 99.02 Wh | 
| Swappable battery? | ❌ | Replaceable | 
| Charging port(s): | USB-C | AC | 
| Powerbank function? | Yes; 1× USB-C 10W | Yes; 1× USB-C ?W | 
| Buttons & controls | ||
| Sound mode button(s)? | ❌ | 'Bass Boost' (2 modes) | 
| Sound effect buttons? | ❌ | ❌ | 
| Other (special) buttons? | Light effect button, Party Mode button | ❌ | 
| App? | EarFun Audio App | JBL Portable | 
| Voice assistant? | ✔ | ❌ | 
| Lights | ||
| Colored LEDS? | 2× circle (behind woofer) | ❌ | 
| Strobe LEDS? | ❌ | ❌ | 
| Size & weight | ||
| Size (cm H×W×D): | 21.7×40.0×15.0 | 26.29×50.64×21.29 | 
| Size (inch H×W×D): | 8.54×15.75×5.91 | 10.4×19.9×8.4 | 
| Weight (kg): | 4.15 | 5.89 | 
| Weight (lbs): | 9.15 | 13 | 
| Physical features | ||
| IP Code | IP67 | IP68 | 
| Transportation method? | 1 handle + shoulder strap | 1 handle | 
| Color options: | 1 color: Black | 3 colors: Black, blue, camo | 
| Other features? | Detachable carry strap | - | 
| In the box | ||
| Charger/cables? | USB-A to USB-C | Power cable | 
| Accessories? | Shoulder strap | - | 
| More info | ||
| Model number | UBOOM X | JBLBOOMBOX4 | 
| User guide / manual | User Manual | Quick start guide | 
| Official site link: | MyEarFun.com | JBL.com | 
EarFun UBOOM X vs JBL Boombox 4
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