Short answer: the Tribit Stormbox Flow for battery life, the Soundcore Motion 300 for bass. The Flow reaches up to 30 hours of battery life, roughly double most rivals at about 20 to 24 hours with XBass on, but it is not stereo. The Motion 300 has pretty deep bass for the small size, but its treble needs the EQ or the top two treble bars maxed.
Buy the Soundcore Motion 300. It is rated higher for sound quality than the Tribit Stormbox Flow at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
There is a real battery-life gap here: the Tribit Stormbox Flow is rated for 30 hours, the Soundcore Motion 300 only 13 hours.
Want more options? Browse the full Portable Bluetooth rankings.
A compact stereo speaker with deep bass for its size, hi res Bluetooth and a custom EQ for each position, standing or lying down.
A waterproof speaker with very long battery life, a carry handle, stereo pairing and a port that charges your phone.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| Soundcore Motion 300 | Tribit Stormbox Flow | |
|---|---|---|
| Price | $79.99 | $79.99 |
| Ranked | #3 of 179 in Medium Size Portable Bluetooth Speakers | #58 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 50Hz | 47Hz |
| Battery Life | 13 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, LDAC, SBC | SBC, AAC |
| Built-in Microphone | Yes | - |
| EQ | Yes (9 band with adjustable frequency) | Yes |
| IP Rating | IPX7 | IPX7 |
| Bluetooth Latency | 216ms ldac, 200ms aac, 116ms sbc | 400ms aac, 200ms sbc |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) | - |
| Power Bank | No | - |
| Stereo | Yes | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.7 lbs (772 g) | 1.4 lbs (657 g) |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 7.9” x 3.6” x 2” (200 x 92 x 50 mm) | 7.9” x 3.6” x 2.1” (200 x 91 x 53 mm) |
| Drivers | 2x 50.8mm (2”) full-range drivers + 2x passive radiators | 60W: 2x 30mm drivers + passive radiators |
| Frequency Response | 65Hz - 40kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Power Input | USB-C | USB-C |
| Amplifier Power | 30W | 25W |
| Party Mode | Yes (PartyCast up to 100 speakers) | - |
| Digital Aux Input | No | No |
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