Cambridge SoundWorks OontZ Ultra
Score: 83/100
JBL Go 4
Score: 75/100Rankings
The OontZ Ultra delivers 14 W of sound, 20-hour battery life and IPX7 waterproofing with true wireless stereo capability. Android latency and distortion at max volume are notable drawbacks. Perfect for users seeking a compact, waterproof speaker with long playtime and TWS pairing.
The JBL Go 4 is an ultra-portable Bluetooth speaker delivering big-sound performance and robust IP67 durability in a palm-sized body with Bluetooth 5.3 and Auracast for flexible multi-speaker setups. Its limited volume and absence of a built-in microphone are trade-offs. Suited for travelers and casual listeners needing a compact, durable speaker.
| Attribute | | |
|---|---|---|
20 hoursbest | 7 hours | |
| ↓ lower better | 480 g | 190 gbest |
— | 45 mmbest | |
— | 850 mAhbest | |
14 Wbest | 4.2 W | |
30.5 mbest | — | |
| ↓ lower better | — | 180 minutesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Battery & Power(1) | ||
Battery Life (hours) | 20 hours | 7 hours |
Audio(2) | ||
Output Power (W) | 14 W | 4.2 W |
Frequency Response (Hz) | Slope -0.45 dB, Std. Err. 2.77 dB Hz | 90 Hz – 20 kHz Hz |
Connectivity(1) | ||
Bluetooth Version | 5.0 | 5.3 |
Build & Design(3) | ||
Weight (g) | 480 g | 190 g |
Dimensions (H×W×D) (mm) | 71.1×71.1×165.1 mm | 76.2×43.2×94.0 mm mm |
IP Rating | IPX7 | IP67 |
Products in the top-left offer the best value (high score, low price).
Professional reviewers rate the OontZ Angle 3 Ultra highly for its portability, robust IPX7 waterproofing, long battery life, and surprisingly powerful 14 W sound output. They commend its accurate frequency response and reliable 100-foot Bluetooth range, while noting the higher latency on Android devices and the absence of multi-device pairing as the main technical shortcomings.
Everyday users consistently praise the speaker's loud, bass-rich audio, long battery life, and waterproof durability, describing it as an excellent value for outdoor and casual indoor listening. Recurring complaints focus on distortion at max volume, occasional Bluetooth dropouts beyond 30 ft, and limited controls on the secondary TWS unit.
“one of the best sounding under $40... EVER!”
Professional reviewers consistently commend the JBL Go 4 for delivering big-sound performance and robust IP67 durability in an ultra-compact package. They emphasize the value of Bluetooth 5.3 with Auracast for flexible multi-speaker setups, while noting that the audio output, though impressive for size, is not meant for large-area coverage.
Everyday users love the speaker's portability, ruggedness, and balanced sound, especially for personal listening at the beach, pool, or shower. Common criticisms focus on limited volume for bigger spaces and occasional wear on the rubber buttons after heavy use.
