Short answer: the EarFun Uboom L, narrowly. They cost about the same, $49.79 and $49.99, and the Oluv-tuned Uboom L is the stronger pick, though latency runs 400ms or 66ms in low latency mode, which fails when two speakers are TWS paired. The Miniroll counters with good clarity and detail in the mids and highs plus a warmer balance than most ultra-portables its size, though its bass is not as deep as the best.
What the EarFun Uboom L gets right: Tuned by Oluv and he knocked it out of the park. Set against that: Latency is high (400ms) without turning on low latency mode (66ms) which doesn’t work when two speakers are TWS paired.
Buy the EarFun Uboom L ($49.79) for a medium speaker; the Ultimate Ears Miniroll ($49.99) suits a small speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| EarFun Uboom L | Ultimate Ears Miniroll | |
|---|---|---|
| Price | $49.79 after coupon UBOOMLWC | $49.99 |
| Ranked | #2 of 179 in Medium Size Portable Bluetooth Speakers | #12 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes (firmware >= 1.2.6) | No |
| Aux Input | Yes | No |
| Aux Latency | 216ms | - |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 16 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band, firmware >= 1.2.6) | No |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 400ms normal / 66ms low latency mode | - |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | 83dB (Manufacturer specified) |
| Party Mode | No | Yes (PartyUp/Auracast, Miniroll-only) |
| 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 (279 g) |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 3.1” x 8.3” x 2.8” (78 x 210 x 72 mm) | 4.8” x 4.1” x 1.9” (122.7 x 105 x 48.1 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators | 45.6mm active with passive radiator |
| Amplifier Power | 28W | 3W RMS |
| Digital Aux Input | No | No |
| Charging Time | - | 2.3 hours |
| Strap | - | Yes (built-in strap) |
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