Cambridge Soundworks OontZ Ultra 2-Pack
Score: 78/100
JBL Go 3 Blue
Score: 70/100Rankings
The OontZ Ultra Dual 2-Pack provides true stereo sound with 14 W per speaker, IPX7 waterproofing and 20-hour battery life. Pairing is managed through the OontZ app, and while the audio performance is strong, charging is slow and the ecosystem is limited.
The JBL Go 3 is a tiny, fabric-wrapped speaker that offers JBL's signature sound and IP67 protection in a pocket-sized form factor. Its modest 5-hour battery and limited bass keep it best suited for casual, low-volume listening rather than bass-heavy music.
| Attribute | | |
|---|---|---|
20 hoursbest | 5 hours | |
14 wattsbest | 4.2 watts | |
| ↓ lower better | — | 90 Hzbest |
— | 20,000 Hzbest | |
| ↓ lower better | 20 hours | 2.5 hoursbest |
165 mmbest | 40 mm | |
| ↓ lower better | 480 g | 209 gbest |
1 metersbest | 1 metersbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Audio Performance(2) | ||
Output Power (watts) | 14 watts | 4.2 watts |
Driver Size (mm) | 165 mm | 40 mm |
Battery & Power(2) | ||
Battery Life (hours) | 20 hours | 5 hours |
Charging Time (hours) | 20 hours | 2.5 hours |
Connectivity(2) | ||
Bluetooth Version | 5.0 | 5.1 |
Auxiliary Input | true | false |
Build & Design(3) | ||
IP Rating | IPX7 | IP67 |
Weight (g) | 480 g | 209 g |
Material | Plastic | fabric |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors highlight the OontZ Ultra's solid build quality, reliable Bluetooth 5.0 connection and true stereo pairing as standout features, especially given its sub-$100 price point. They note the IPX7 rating and AUX input add versatility, but point out the limited speaker compatibility and lack of fast charging as drawbacks.
Everyday users overwhelmingly praise the speaker's rich, distortion-free audio, long battery life and rugged waterproof design, often mentioning its suitability for poolside or outdoor gatherings. The most common complaints revolve around the slow 20-hour charge cycle and occasional glitches with the pairing app.
“Excellent sound for the size”
“Perfect for the deck or pool”
“Easy to set up and pair”
