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
54/100
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Marshall
Marshall Kilburn III
Marshall Kilburn III portable Bluetooth speaker with manufacturer-sourced battery, durability, weight, and connection specifications.
Bettr Than Score · Balanced
46/100
Category-specific score
What matters most to you?
Value, battery, portability, durability, and useful connections.
Bose SoundLink Flex Portable Speaker (2nd Gen)
54 / 100
Marshall Kilburn III
46 / 100
100% supported scoring weight · 11 shared fields.
How this score works
- Reference price: 20% · Bose SoundLink Flex Portable Speaker (2nd Gen) has the favorable value
- Advertised battery life: 20% · Marshall Kilburn III has the favorable value
- Weight: 15% · Bose SoundLink Flex Portable Speaker (2nd Gen) has the favorable value
- Durability tier: 20% · Bose SoundLink Flex Portable Speaker (2nd Gen) has the favorable value
- Can charge another device: 10% · Marshall Kilburn III has the favorable value
- USB audio input: 5% · equal
- Auracast or compatible broadcast pairing: 5% · equal
- Floats in water: 5% · Bose SoundLink Flex Portable Speaker (2nd Gen) has the favorable value
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 | Marshall Kilburn III |
|---|---|---|
$149 | Reference price | $379.99 |
12 hours | Advertised battery life | 50 hours |
590 g | Weight | 2800 g |
IP67 | Ingress protection | IP54 |
4 | Durability tier | 2 |
5.3 | Bluetooth version | 5.3 |
No | Can charge another device | Yes |
No | USB audio input | No |
No | Auracast or compatible broadcast pairing | No |
Yes | Floats in water | No |
Yes | Speakerphone | No |
Evidence-based guidance · Balanced model
Bose SoundLink Flex Portable Speaker (2nd Gen) 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.
Consider Bose SoundLink Flex Portable Speaker (2nd Gen) for reference price ($149), weight (590 g), durability tier (4), floats in water (Yes).
Consider Marshall Kilburn III for advertised battery life (50 hours), can charge another device (Yes).
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Where to buy Bose SoundLink Flex Portable Speaker (2nd Gen)
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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 Marshall Kilburn III
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.