Short answer: the Bogasing G4 on price and battery. It delivers clear sound with punchy bass, an exceptional 24 hour battery and IPX7 waterproofing with multiple sound modes at $42.49 against the Bose Soundlink Flex 2nd gen’s $159, though some boosted treble is wavy up top. The Bose sounds pretty much identical to the 1st gen and is not stereo.
Buy the Bogasing G4. It is rated higher for sound quality than the Bose Soundlink Flex 2nd gen and costs less, so only choose the other one for a particular feature it does better.
Battery life favors the Bogasing G4: rated for 24 hours against 12 hours for the Bose Soundlink Flex 2nd gen.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Bogasing G4 | Bose Soundlink Flex 2nd gen | |
|---|---|---|
| Price | $42.49 | $159.00 |
| Ranked | #27 of 179 in Medium Size Portable Bluetooth Speakers | #37 of 179 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | Yes | No |
| Aux Latency | 16ms | - |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | No | Yes (3 band) |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 90ms | - |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | - |
| Party Mode | No | Yes (Bose Party mode) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.8 lbs (0.83 kg) | 1.3 lbs (586 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | LE Audio with LC3 | SBC, AAC, aptX Adaptive |
| Amplifier Power | 50W | - |
| Drivers | Two drivers and passive radiators | 60mm full-range driver with passive radiators |
| Bluetooth Version | 5.3 | 5.3 |
| Digital Aux Input | No | No |
| Dimensions | 8.9”H x 2.5”W x 3.4”D (225 x 64 x 86 mm) | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) |
| Built-in Microphone | - | Yes |
| Strap | - | Yes (built-in loop) |
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