Short answer: the Noxgear 0.1 lbs (39 g), if you are buying new. The Monster Atomic Atom ranks higher than it (#36 vs #62 of [63 small speakers](/portable/small/#noxgear-0.1 lbs (39 g)), 3.1/5 vs 2.2/5) but is discontinued, so only consider it used; the Noxgear 0.1 lbs (39 g) is still sold new at $69.95.
The Monster Atomic Atom is the better-sounding, deeper-bass pick. A tiny speaker, with a handy magnetic clip and a hole for hanging. Its bass reaches about 90Hz before falling 10dB, against 300Hz for the Noxgear 0.1 lbs (39 g). It links with other speakers (Broadcast Mode, up to 100 speakers), which the Noxgear 0.1 lbs (39 g) cannot. Watch for: For the small class, lacking quite a bit of bass compared to the top ranked speakers.
The Noxgear 0.1 lbs (39 g) is the longer-running, lighter option. An extremely light speaker that clips magnetically to a shirt, with a safety light for runners in low light. It is rated for 15 hours of battery against 9 for the Monster Atomic Atom. At 0.1 lbs (39 g) it weighs much less than the Monster Atomic Atom at 0.4 lbs (159 g). It is rated IPX7 against IPX5 for the Monster Atomic Atom. The tradeoff: It sounds worse than a clock radio with the worst bass of any speaker.
Buy the Noxgear 0.1 lbs (39 g) new; the Monster Atomic Atom is no longer sold new, so it only makes sense as a used find.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Monster Atomic Atom | Noxgear 39g | |
|---|---|---|
| Price | $40 Discontinued | $69.95 |
| Ranked | #36 of 63 in Small Size Portable Bluetooth Speakers | #62 of 63 in Small Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | No | No |
| Bass Extension (-10dB) | 90Hz | ~300Hz |
| Battery Life | 9 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| EQ | No | No |
| IP Rating | IPX5 | IPX7 |
| MicroSD Playback | No | - |
| Party Mode | Yes (Broadcast Mode, up to 100 speakers) | No |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| TWS | No | No |
| Weight | 0.4 lbs (159 g) | 0.1 lbs (39 g) |
| Built-in Microphone | Yes | Yes |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| Bluetooth Version | 5.4 | 5.2 |
| Drivers | 33mm | N52 neodymium |
| Charging Time | 2 hours | 3 hours |
| Amplifier Power | 3W | - |
| Dimensions | 2.6” x 1.9” x 1.3” (65 x 47.8 x 32 mm) | 2.6” x 1.6” x 0.9” (66 x 41 x 23 mm) |
| Digital Aux Input | No | No |
| Strap | - | Yes (clip) |
Where the Ratings Come From
- Monster Atomic Atom: reviews by wwjoshdew.
- Noxgear 39g: reviews by BigMans World Of Wonders and DHRME.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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