Short answer: the Soundcore Boom Go 3i. It ranks #2 of 62 small speakers by sound quality, rated 4.4/5, at $59.98; the Noxgear 0.1 lbs (39 g) ranks #61, rated 2.2/5, and costs $69.95, which makes this an easy call rather than a real tradeoff.
The Soundcore Boom Go 3i is the better-sounding, longer-running choice. A tough, floating mini speaker with full waterproofing, a long battery and a detachable strap, built for travel and the outdoors. It is rated for 24 hours of battery against 15 for the Noxgear 0.1 lbs (39 g). It links with other speakers (Auracast), which the Noxgear 0.1 lbs (39 g) cannot. It has an adjustable EQ, which the Noxgear 0.1 lbs (39 g) lacks. The tradeoff: This is still a 15W mono speaker: bass impact and stereo width are limited, and critical listeners may find the upper treble piercing or metallic.
The Noxgear 0.1 lbs (39 g) is the lighter option. An extremely light speaker that clips magnetically to a shirt, with a safety light for runners in low light. At 0.1 lbs (39 g) it weighs much less than the Soundcore Boom Go 3i at 0.8 lbs (380 g). Watch for: It sounds worse than a clock radio with the worst bass of any speaker.
Buy the Soundcore Boom Go 3i. It is rated higher for sound quality than the Noxgear 0.1 lbs (39 g) and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Soundcore Boom Go 3i | Noxgear 39g | |
|---|---|---|
| Price | $59.98 | $69.95 |
| Ranked | #2 of 62 in Small Size Portable Bluetooth Speakers | #61 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | No |
| IP Rating | IP68 | IPX7 |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes | No |
| Weight | 0.8 lbs (380 g) | 0.1 lbs (39 g) |
| Bluetooth Version | 6.0 | 5.2 |
| Amplifier Power | 15W | - |
| Dimensions | 4” x 4.2” x 1.8” (102.1 x 105.9 x 45.5 mm) | 2.6” x 1.6” x 0.9” (66 x 41 x 23 mm) |
| Drivers | 25mm tweeter + 42mm woofer + passive radiators | N52 neodymium |
| Maximum SPL | 92dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | Yes (clip) |
| Bass Extension (-10dB) | - | ~300Hz |
| Charging Time | - | 3 hours |
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