Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Earfun Uboom L ranks #1 of 144 medium speakers by sound quality at $49.79; the Soundcore Select 4 Go ranks #23 of 47 small speakers by sound quality at $22.99.
Why pick the Earfun Uboom L: One of the strongest small-speaker values for music: reviews praise clear vocals, a natural overall balance and a genuinely convincing stereo image when two are paired. Watch for: It cannot produce real low-bass rumble or fill a large, noisy space, and the top end loses some detail.
What the Soundcore Select 4 Go does well: Quite inexpensive for what you get. Watch for: Not as deep of bass as higher ranked speakers.
Buy the Earfun Uboom L ($49.79) for a medium speaker; the Soundcore Select 4 Go ($22.99) suits a small speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Earfun Uboom L | Soundcore Select 4 Go | |
|---|---|---|
| Price | $49.79 after coupon UBOOMLWC | $22.99 |
| Ranked | #1 of 144 in Medium Size Portable Bluetooth Speakers | #23 of 47 in Small Size Portable Bluetooth Speakers |
| App | Yes (firmware >= 1.2.6) | Yes |
| Aux Input | Yes | No |
| Aux Latency | 216ms | - |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 16 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band, firmware >= 1.2.6) | Yes |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 400ms normal / 66ms low latency mode | - |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | No |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 0.6 lbs (265 g) |
| Bluetooth Version | 5.0 | 5.4 |
| Dimensions | 3.1” x 8.3” x 2.8” (78 x 210 x 72 mm) | 4.8” x 3.3” x 1.9” (121 x 83 x 48.5 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators | 1.75” (44mm) full range |
| Amplifier Power | 28W | 5W |
| Digital Aux Input | No | No |
| Frequency Response | - | 90Hz - 20kHz (Manufacturer specified) |
| Charging Time | - | 4 hours |
| Strap | - | Yes (strap) |
Related Speaker Comparisons
How Earfun Uboom L compares with other leading options:
- Earfun Uboom L vs Soundcore Motion 300
- Earfun Uboom L vs Soundcore Motion+
- Earfun Uboom L vs Minirig 4
- Earfun Uboom L vs B&O Beosound A1 2nd gen
- Earfun Uboom L vs JBL Charge 6
Prices on this page were last checked September 26, 2026 at 11:14 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
Earfun Uboom L: $49.79 after coupon UBOOMLWC Amazon EarFun eBay
Pros: One of the strongest small-speaker values for music: reviews praise clear vocals, a natural overall balance and a genuinely convincing stereo image when two are paired. IP67 protection, indoor/outdoor sound modes and Video Mode make it unusually adaptable; Video Mode substantially improves lip-sync for a single speaker. Measured bass extension of 56Hz (-10dB).
Cons: It cannot produce real low-bass rumble or fill a large, noisy space, and the top end loses some detail. Low-latency Video Mode disables stereo pairing, so a two-speaker setup is not a good movie system. Firmware and app behavior have also varied over the model’s long life, and the physical controls can be easy to trigger in a bag. Latency is about 400ms by default and 66ms in Video Mode, which you enable by pressing the Bluetooth button twice.
Setup: Try setting up the Earfun App (Android or iOS) to see if that works. If not, you’ll need to flash firmware 1.2.7 to work with the app and set with Oluv’s EQ in the Earfun app which sounds the best. The instructions say that you need a USB3 cable, but most USB2 cables work just fine, try the one included with your phone. Check the current firmware version by turning it on, then pressing the power and Bluetooth buttons at the same time. To flash, turn the speaker off then hold down the Bluetooth button while plugging in the cable. To flash on a mac, see these instructions. In TWS mode, long press the outdoor button for 2 seconds to change TWS to Party mode and back.
Full Earfun Uboom L review and specifications →
| Amplifier Power | 28W |
|---|---|
| App | Yes (firmware >= 1.2.6) |
| Aux Input | Yes |
| Aux Latency | 216ms |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Latency | 400ms normal / 66ms low latency mode |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.1” x 8.3” x 2.8” (78 x 210 x 72 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators |
| EQ | Yes (10 band, firmware >= 1.2.6) |
| IP Rating | IP67 |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.4 lbs (650 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Best portable speakers 2025 - get the best bang for your buck $$$ More from Oluv’Sone →
- Oluv Patreon: SoundCore Boom 3i - first impressions & EQs
- Joy & Oluv’Sone: New Beats Pill 2024: sound demo
- CEONTHEMAKING: Earfun Uboom L - This Speaker Replaced My JBL Flip 6… More from CEONTHEMAKING →
- Techder Audios: EARFUN UBOOM L VS SOUNDCORE MOTION+ More from techderaudios →
- Alan Ross Reviews: Earfun UBoom L Review Speaker tuned by a Geek vs Soundcore Motion Plus $100 dollar best portable? More from alanrossreviews →
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Jay’s Straight Up Reviews & More: Earfun UBoom L 💣(EQ2) 🆚 Tribit XSound Mega 🔥(XBass EQ)- Bluetooth Speaker Bedroom Bash. Who U Got?🔝 More from JaysStraightUpReviews →
- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best?
- DIY Subwoofers - Uboom L Measurements and Review
- Head-to-Head Comparisons
Soundcore Select 4 Go: $22.99 Amazon AliExpress B&H Photo Video eBay
Pros: Quite inexpensive for what you get
Cons: Not as deep of bass as higher ranked speakers. Doesn’t get very loud before sound quality drops; some sibilance on snare/stick transients. No built-in mic; playback is mono unless you buy a second unit.
Full Soundcore Select 4 Go review and specifications →
| Amplifier Power | 5W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Charging Time | 4 hours |
| Digital Aux Input | No |
| Dimensions | 4.8” x 3.3” x 1.9” (121 x 83 x 48.5 mm) |
| Drivers | 1.75” (44mm) full range |
| EQ | Yes |
| Frequency Response | 90Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (strap) |
| TWS | Yes |
| Weight | 0.6 lbs (265 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Select 4 Go vs JBL Go 5
- Soundcore Select 4 Go vs JBL Clip 4
- Soundcore Select 4 Go vs JBL Clip 5
- Soundcore Select 4 Go vs JBL Go 4
- Soundcore Select 4 Go vs JBL Go 3
- Soundcore Select 4 Go vs Tozo PE1
- Soundcore Select 4 Go vs Tribit PocketGo
- Soundcore Select 4 Go vs Bose Soundlink Micro
- See all 48 comparisons