Short answer: the Soundcore Motion 300 ranks #2 of 135 medium speakers by sound quality at $79.99; the Earfun Uboom Slim ranks #38 at $79. Close enough in price that the sound-quality gap is the deciding factor.
The case for the Soundcore Motion 300: It has pretty deep bass for its small, pocketable size, can be used in stereo facing you or omnidirectional lying down, supports a custom EQ for each orientation (standing, lying flat, hanging), and sounds more neutral with Oluv’s Uboom L EQs applied. The catch: without that EQ (or maxing the top two treble bars) it’s very rolled off in the treble, Bassup mode sounds worse than Signature, it isn’t as detailed or neutral as higher ranked speakers, and there’s slight bass distortion when turned up.
What the Earfun Uboom Slim gets right: It has excellent pricing, a strong IPX7 waterproof build, good 16-hour battery life, smooth sound with volume compensation, and speakerphone capability. Set against that: its bass isn’t as deep as others, it’s warm tuned with peaks in the mids and lower treble, and the upper treble is rolled off.
Buy the Soundcore Motion 300 if sound quality matters more than the price. Buy the Earfun Uboom Slim if the price matters more than sound quality.
Specifications Side By Side
| Soundcore Motion 300 | Earfun Uboom Slim | |
|---|---|---|
| Price | $79.99 | $79 |
| Ranked | #2 of 135 in Medium Size Portable Bluetooth Speakers | #38 of 135 in Medium Size Portable Bluetooth Speakers |
| App | Yes | - |
| Aux Input | No | - |
| Bass Extension (-10dB) | 50Hz | ~63Hz |
| Battery Life | 13 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | LDAC, SBC | SBC |
| Built in Microphone | Yes | Yes |
| EQ | Yes (9 band with adjustable frequency) | - |
| IP Rating | IPX7 | IPX7 |
| Bluetooth Latency | 216ms ldac, 200ms aac, 116ms sbc | - |
| Max Volume | 101dB | - |
| Power Bank | No | - |
| Stereo | Yes | Yes |
| TWS | Yes | - |
| Weight | 1.7 lbs / 772 g | 1.2 lbs / 560 g |
| Bluetooth Version | 5.3 | 5.2 |
| Dimensions | 7.9" x 3.6" x 2" (200 x 92 x 50 mm) | - |
| Drivers | 2x 50.8mm (2") full-range drivers + 2x passive radiators | 45mm speaker drivers |
| Frequency Response | 65Hz - 40kHz (Manufacturer specified) | - |
| Power Input | USB-C | USB-C |
| Output Power | 30W | 20W |
| Party Mode | Yes (PartyCast up to 100 speakers) | - |
| Digital Aux Input | No | No |
The Two Speakers In Full
Soundcore Motion 300: $79.99 Amazon
Pros: Pretty deep bass for the small size. Pocket size in a big pocket. Can be used in stereo facing you, or omnidirectional lying down. Ability to have a custom EQ for each orientation, standing, lying flat, hanging. Try the Uboom L EQs from Oluv for a more neutral sound.
Cons: Without the above EQ or turning the top 2 treble EQ bars to max, this speaker is very rolled off in the treble and will rank around #50 in the rankings. Bassup mode is worse than Signature. Not quite as detailed or neutral as higher ranked speakers. Slight bass distortion when turned up.
Full Soundcore Motion 300 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 50Hz |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth Codecs | LDAC, SBC |
| Bluetooth Latency | 216ms ldac, 200ms aac, 116ms sbc |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.6" x 2" (200 x 92 x 50 mm) |
| Drivers | 2x 50.8mm (2") full-range drivers + 2x passive radiators |
| EQ | Yes (9 band with adjustable frequency) |
| Frequency Response | 65Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 101dB |
| Output Power | 30W |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.7 lbs / 772 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen & Soundcore Motion 300 sound test
- Alan Ross Reviews: Travel Speakers! Soundcore Motion 300 or Bose Flex or Tribit Stormbow Flow
- Alan Ross Reviews: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
- Jay’s Straight Up Reviews & More: On A Ledge 🪟 Soundcore Motion 300 vs Tozo PA1 ⚒ Battle of the Budget Handheld Bluetooth Speakers
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex “Inspired” Speakers
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Oluv Patreon: SoundCore Motion 300 vs VIFA Helsinki
- Oluv Patreon: (Anker) Soundcore Motion 300 - first impressions
- New Stuff TV 2: Sony ULT Field 1 vs JBL Flip 6, JBL Charge 5 & Soundcore Motion 300
- Storytripper HD: Klipsch Nashville vs Harman Kardon Luna vs Soundcore Motion 300
- Reddit Search for Soundcore Motion 300 Review
- Head-to-Head Comparisons
- Soundcore Motion 300 vs Earfun Uboom L
- Soundcore Motion 300 vs Soundcore Motion+
- Soundcore Motion 300 vs Soundcore Boost “upgraded” 2021
- Soundcore Motion 300 vs Minirig 4
- Soundcore Motion 300 vs JBL Charge 6
- Soundcore Motion 300 vs Miatone Boompro
- Soundcore Motion 300 vs Wisetiger P3
- Soundcore Motion 300 vs Mifa Wildrod
- See all 24 comparisons
Earfun Uboom Slim: $79
Pros: Excellent pricing, strong waterproof build (IPX7), good battery life (16 hours), smooth sound with volume compensation, speakerphone capability
Cons: Not as deep bass as others. Warm tuned, peaks in the mids and lower treble, rolled off upper treble
Full Earfun Uboom Slim review and specifications →
| Bass Extension (-10dB) | ~63Hz |
|---|---|
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Drivers | 45mm speaker drivers |
| IP Rating | IPX7 |
| Output Power | 20W |
| Power Input | USB-C |
| Stereo | Yes |
| Weight | 1.2 lbs / 560 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons