Cambridge Soundworks OontZ Ultra
Score: 77/100
JBL Go 3 Blue
Score: 70/100Rankings
The OontZ Ultra offers 14 W stereo sound, IPX7 waterproofing and a 20-hour battery in a compact, USB-C-charged package. It excels in range and durability but suffers from a very long charge time and a lack of premium build materials.
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 |
— | 40 mmbest | |
| ↓ lower better | 480 g | 209 gbest |
— | 1 metersbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Audio Performance(1) | ||
Output Power (watts) | 14 watts | 4.2 watts |
Battery & Power(2) | ||
Battery Life (hours) | 20 hours | 5 hours |
Charging Time (hours) | 20 hours | 2.5 hours |
Connectivity(2) | ||
Bluetooth Version | 5.4 | 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 editors emphasize the OontZ Ultra's standout 100-ft Bluetooth range, robust IPX7 waterproofing, and rich bass response, noting the advanced antenna design and the rarity of stereo pairing in this price segment. They praise its sound and durability while noting typical budget-friendly trade-offs.
Everyday users consistently praise the speaker's loud, clear audio, exceptional battery life, and reliable waterproof performance, especially for outdoor and poolside use. Common complaints revolve around the lengthy 20-hour charging time, lack of a battery indicator, and occasional issues with stereo pairing or bass distortion at high volumes.
“louder and clearer than expected for its size.”
“Played music all day at a beach party and still had charge.”
“Dropped it in the pool-still works perfectly.”
