JBL
Its listing gives it a 12-inch subwoofer. The speaker is 9 cm across.
4.6(19,109)Affiliate links: if you buy through them we earn a commission from Amazon at no extra cost to you. Learn more.
Six axes, the same rule for every speaker. This is our judgment, not the manufacturer's.
| Battery life | 3/10 | |
|---|---|---|
| Sound | 6/10 | |
| Potencia | 4/10 | |
| Portability | 10/10 | |
| Durability | 8/10 | |
| Value | 6/10 |
The Go 4 is the safe version of the Go 5: same shape, same loop, one fewer hour of battery, IP67 instead of IP68 — and 19,109 ratings against 751. If you want a small JBL that thousands of people have already broken in, this is it.
What it also is, right now, is ten dollars more expensive than its own replacement. $49.95 against $39.95. That happens when a new model launches into a discount and the old one holds list price, and it usually corrects. Look at both before you buy either.
The spec table is the worst on this site. It gives a speaker measuring 3.7 by 1.7 by 3 inches a twelve-inch subwoofer — the size of a car wheel — and then adds that the subwoofer connects wirelessly. It claims 180 watts, the same figure as the Clip 5 and thirty-seven times the Go 5's. It says the battery takes seven hours to charge, which is exactly how long it runs. And four rows below «Number of Audio Channels: 2» it says «Audio Output Mode: Mono».
None of that changes what arrives. It does tell you that on Amazon, for portable speakers, the numbers are decoration.
Anything marked «—» is a figure the manufacturer doesn't publish. We don't fill those in by eye.
| Type | Ultraportatil |
|---|---|
| How it attaches | Integrated loop |
| Power | — |
|---|---|
| Peak power | — |
| Maximum volume | — |
| Drivers | 1 |
| Passive radiator | — |
| Frequency response | — |
| App EQ | No |
| Claimed battery life | 7 h |
|---|---|
| Battery life at high volume | — |
| Charge time | — |
| USB-C charging | Yes |
| Charges your phone | No |
| Replaceable battery | No |
| Bluetooth version | — |
|---|---|
| Codecs | — |
| Pairs in stereo with a second unit | Yes |
| Two devices at once | — |
| Aux input | No |
| Microphone for calls | No |
| Water resistance (IP) | IP67 |
|---|---|
| Floats | — |
| Weight | 190 g |
| Dimensions | 3.7 x 1.7 x 3 in |
| Strap or handle | Yes |
| Warranty | 1 year |
| «Subwoofer Diameter: 12 inches» | The speaker measures 3.7 by 1.7 by 3 inches. A twelve-inch subwoofer is the size of a car wheel. It also says «Subwoofer Connectivity Technology: Wireless», for a subwoofer that does not exist. |
|---|---|
| «Speaker Maximum Output Power: 180 watts» | The identical figure to the JBL Clip 5, and thirty-seven times what the newer Go 5 claims. Whatever populates this field is not measuring these speakers. |
| «Battery Charge Time: 7 hours» | Exactly as long as the battery lasts. Seven hours of charging for seven hours of music. This is the third product on the site with the runtime copied into the charge-time field. |
| Mono and two channels at once | «Audio Output Mode: Mono» four rows below «Number of Audio Channels: 2». |
| It costs more than the model that replaced it | $49.95 against $39.95 for the Go 5, which is newer, lasts an hour longer and is rated IP68. Check both prices before buying this one. |
| «Frequency Response: 20000 hertz» | A single number, and the top of the range rather than the range. |
| The loop is the one honest row | «Mounting Type: Built-in Loop». True, and it is what makes this a bag-strap speaker rather than a handlebar one. |
| 19,109 ratings | Twenty-five times the sample behind the Go 5. That is the real argument for buying the older model. |
A summary of the reviews published on Amazon.com as of 2026-09-09.
4.6 out of 5 from 19,109 ratings, built up over two years. The praise is the size and the toughness, with a striking number of reviews from people who have dropped or soaked one. The recurring complaint is battery life, which is the number JBL cut to make it this small.
Reviews and prices change. Check before you decide.
See reviews and price on AmazonAdd two or more speakers to the comparison and you'll see their spec tables and charts side by side.
Ten dollars cheaper than the model it replaces, with a better water rating and an hour more battery.
Its Amazon page claims 180 watts and a 12-inch speaker, in a device 13 cm tall.
$21.99, twenty hours, IP67, it floats, two years of warranty — and its numbers agree with each other.