Bose
Bose SoundLink Flex Portable Speaker (2nd Gen)
Bose SoundLink Flex Portable Speaker (2nd Gen) portable Bluetooth speaker with manufacturer-sourced battery, durability, weight, and connection specifications.
Bettr Than Score · Balanced
46/100
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Ultimate Ears
Ultimate Ears WONDERBOOM 4
Ultimate Ears WONDERBOOM 4 portable Bluetooth speaker with manufacturer-sourced battery, durability, weight, and connection specifications.
Bettr Than Score · Balanced
54/100
Category-specific score
What matters most to you?
Value, battery, portability, durability, and useful connections.
Bose SoundLink Flex Portable Speaker (2nd Gen)
46 / 100
Ultimate Ears WONDERBOOM 4
54 / 100
100% supported scoring weight · 11 shared fields.
How this score works
- Reference price: 20% · Ultimate Ears WONDERBOOM 4 has the favorable value
- Advertised battery life: 20% · Ultimate Ears WONDERBOOM 4 has the favorable value
- Weight: 15% · Ultimate Ears WONDERBOOM 4 has the favorable value
- Durability tier: 20% · equal
- Can charge another device: 10% · equal
- USB audio input: 5% · equal
- Auracast or compatible broadcast pairing: 5% · equal
- Floats in water: 5% · equal
The score compares published hardware facts. It does not claim to measure sound quality, maximum loudness, tuning, or real-world battery life.
Side-by-side specifications
| Bose SoundLink Flex Portable Speaker (2nd Gen) | Specification | Ultimate Ears WONDERBOOM 4 |
|---|---|---|
$149 | Reference price | $99.99 |
12 hours | Advertised battery life | 14 hours |
590 g | Weight | 420 g |
IP67 | Ingress protection | IP67 |
4 | Durability tier | 4 |
5.3 | Bluetooth version | 5.2 |
No | Can charge another device | No |
No | USB audio input | No |
No | Auracast or compatible broadcast pairing | No |
Yes | Floats in water | Yes |
Yes | Speakerphone | No |
Evidence-based guidance · Balanced model
Ultimate Ears WONDERBOOM 4 leads on the balanced portable speakers model
Based on 11 shared sourced fields and 100% balanced scoring coverage. The score compares published hardware facts. It does not claim to measure sound quality, maximum loudness, tuning, or real-world battery life.
Choose Bose SoundLink Flex Portable Speaker (2nd Gen) when its form factor, platform, or ecosystem fits you better.
Consider Ultimate Ears WONDERBOOM 4 for reference price ($99.99), advertised battery life (14 hours), weight (420 g).
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Where to buy Bose SoundLink Flex Portable Speaker (2nd Gen)
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No verified retailer offers are available yet.
Prices and availability can change. Totals exclude tax. Lowest-listed labels compare only fresh, in-stock offers with known shipping in the same currency. Sponsored status never changes their order.
Where to buy Ultimate Ears WONDERBOOM 4
We may earn a commission when you buy through links marked “Affiliate link.” This does not change your price or our scores. How we earn
No verified retailer offers are available yet.
Prices and availability can change. Totals exclude tax. Lowest-listed labels compare only fresh, in-stock offers with known shipping in the same currency. Sponsored status never changes their order.
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