Short answer: the JBL Flip 4 if sound quality matters most, the Zealot S61 if price matters most. The JBL Flip 4 ranks #63 of 136 medium speakers at $70. The Zealot S61 ranks #134 at $20, $50 cheaper.
What the JBL Flip 4 offers: Less bass than a Flip 5. Peaky lower treble. Watch for: Battery failures are common.
What the Zealot S61 offers: 20W output, IPX7 waterproof, exceptional 40-hour battery life, Bluetooth 5.2, TWS stereo pairing, compact 665g design, single full-range driver, built-in microphone, AUX input, USB-C charging Watch for: Sounds like a soup can, no bass at all. Weird frequency response all over.
Buy the JBL Flip 4 if sound quality is the priority over the price, or the Zealot S61 if the price is the priority over sound quality.
Skip the Zealot S61 if sound quality matters to you. It ranks near the bottom of the 136 medium speakers.
Battery life favors the Zealot S61: rated for 40 hours against 12 hours for the JBL Flip 4.
Specifications Side By Side
| JBL Flip 4 | Zealot S61 | |
|---|---|---|
| Price | $70 Discontinued | $20 |
| Ranked | #63 of 136 in Medium Size Portable Bluetooth Speakers | #134 of 136 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 66Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Bluetooth Latency | 300ms | - |
| Party Mode | Yes (Connect+ up to 100 speakers) | - |
| Power Input | Micro USB | USB-C |
| TWS | No | Yes |
| Weight | 1.1 lbs / 510 g | 1.5 lbs / 665 g |
| Bluetooth Version | 4.2 | 5.2 |
| Drivers | 2x 40mm fullrange | 66mm full-range |
| Dimensions | 6.9" x 2.8" x 2.6" (175 x 70 x 65 mm) | 4.1" x 4.1" x 6.7" (103 x 103 x 170 mm) |
| Frequency Response | 70Hz - 20kHz (Manufacturer specified) | - |
| Output Power | 16W RMS | 20W |
| IP Rating | IPX7 | IPX7 |
| Discontinued | Yes | - |
| Max Volume | 92dB | - |
| Digital Aux Input | No | No |
| Omnidirectional | No | No |
| Built in Microphone | - | Yes |
| Power Bank | - | No |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- JBL Flip 5 vs Tribit Xsound Surf
- JBL Flip 5 vs Tribit Stormbox Mini
- JBL Flip 5 vs Tribit Stormbox Mini+
- Tribit Stormbox 2 vs Zealot S61
- W-King D320 vs Zealot S61
Prices on this page were last checked August 27, 2026 at 10:09 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
JBL Flip 4: $70 Discontinued Amazon eBay
Pros: Less bass than a Flip 5. Peaky lower treble.
Cons: Battery failures are common. Discontinued.
Full JBL Flip 4 review and specifications →
| Aux Input | Yes |
|---|---|
| Bass Extension (-10dB) | 66Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Latency | 300ms |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 6.9" x 2.8" x 2.6" (175 x 70 x 65 mm) |
| Discontinued | Yes |
| Drivers | 2x 40mm fullrange |
| Frequency Response | 70Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 92dB |
| Omnidirectional | No |
| Output Power | 16W RMS |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Input | Micro USB |
| TWS | No |
| Weight | 1.1 lbs / 510 g |
- Links
- Reviews, Comparisons and Sound Samples
- DLX Willington: JBL Flip 5 vs Flip 4 :Sound Battle: Almost to the size of the JBL Charge 3? More from DLXWillington →
- GYMCADDY: Best $100 Speaker? JBL Flip 4 Vs Sony XB20 Vs UE WONDERBOOM Vs Altec Mini Lifejacket 2 More from GYMCADDY →
- GYMCADDY: Best $100 Speaker? JBL Flip 4 Vs Sony XB20 Vs UE WONDERBOOM Vs Altec Mini Lifejacket 2
- Reddit Search for JBL Flip 4 Review
- Head-to-Head Comparisons
Zealot S61: $20 Amazon Aliexpress eBay
Pros: 20W output, IPX7 waterproof, exceptional 40-hour battery life, Bluetooth 5.2, TWS stereo pairing, compact 665g design, single full-range driver, built-in microphone, AUX input, USB-C charging
Cons: Sounds like a soup can, no bass at all. Weird frequency response all over.
Full Zealot S61 review and specifications →
| Aux Input | Yes |
|---|---|
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4.1" x 4.1" x 6.7" (103 x 103 x 170 mm) |
| Drivers | 66mm full-range |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Output Power | 20W |
| Power Bank | No |
| Power Input | USB-C |
| TWS | Yes |
| Weight | 1.5 lbs / 665 g |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons