Cambridge Soundworks OontZ Angle 3 Pro Boat
Score: 84/100
Ultimate Ears MEGABOOM 4 Blue
Score: 84/100Rankings
The OontZ Angle 3 Pro is a powerful, IPX7-rated Bluetooth speaker delivering 21 W of sound with app-controlled EQ and a 15-hour battery. Its downsides are its weight and size, plus occasional connectivity hiccups at longer range. Ideal for outdoor parties where volume and durability outweigh the need for ultra-light portability.

The MEGABOOM 4 is a rugged cylindrical speaker delivering 360° sound and thundering bass with a 20-hour battery and IPX7 waterproofing. Its bulkier weight, lack of USB-C charging, and occasional dropouts limit ultra-portable use. Best suited for party hosts and outdoor enthusiasts who prioritize volume and durability.
| Attribute | Cambridge Soundworks OontZ Angle 3 Pro Boat | ![]() |
|---|---|---|
15 hours | 20 hoursbest | |
| ↓ lower better | 600 gbest | 1,202 g |
21 Wbest | — | |
2,200 mAhbest | — | |
— | 50.8 mmbest | |
30 m | 45 mbest | |
| ↓ lower better | 180 minutesbest | — |
— | 1 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | Cambridge Soundworks OontZ Angle 3 Pro Boat | ![]() |
|---|---|---|
Battery & Power(1) | ||
Battery Life (hours) | 15 hours | 20 hours |
Build & Design(2) | ||
Weight (g) | 600 g | 1202 g |
Dimensions (W×H×D) (mm) | 235 x 95 x 89 mm mm | 101.6 x 203.2 x 101.6 mm mm |
Connectivity(1) | ||
Bluetooth Range (m) | 30 m | 45 m |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the OontZ Angle 3 Pro for its substantial power increase, larger drivers, and robust IPX7 waterproofing, noting that the DSP delivers distortion-free volume even at maximum levels.
Everyday users consistently praise the speaker's booming bass, loud volume, and durable waterproof design, especially for pool parties, beach outings, and boat trips. The long battery life and easy pairing are also frequent positives, while weight, occasional connectivity hiccups, and bass dominance at high volumes are the most common criticisms.

“crystal clear sound”
“perfect for parties”

“floats great.”


Professional reviewers commend the MEGABOOM for its richer bass, balanced treble, and robust IPX7 waterproofing, noting its superior 360° sound dispersion and long battery life. However, they also criticize its bulkier, heavier form factor and the lack of modern USB-C charging or built-in EQ controls, which limit its portability and fine-tuning capabilities.
Everyday users rave about the thundering bass, all-day battery life, and the speaker's ability to float and survive drops, making it a party favorite. Recurring complaints focus on the weight, occasional Bluetooth dropouts at long range, and the absence of an app-based EQ for sound customization.