Bose
Bose SoundLink Max Portable Speaker
Bose SoundLink Max Portable Speaker portable Bluetooth speaker with manufacturer-sourced battery, durability, weight, and connection specifications.
Bettr Than Score · Balanced
49.8/100
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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
50.2/100
Category-specific score
What matters most to you?
Value, battery, portability, durability, and useful connections.
Bose SoundLink Max Portable Speaker
49.8 / 100
Marshall Kilburn III
50.2 / 100
100% supported scoring weight · 11 shared fields.
How this score works
- Reference price: 20% · Marshall Kilburn III has the favorable value
- Advertised battery life: 20% · Marshall Kilburn III has the favorable value
- Weight: 15% · Bose SoundLink Max Portable Speaker has the favorable value
- Durability tier: 20% · Bose SoundLink Max Portable Speaker has the favorable value
- 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 Max Portable Speaker | Specification | Marshall Kilburn III |
|---|---|---|
$399 | Reference price | $379.99 |
20 hours | Advertised battery life | 50 hours |
2130 g | Weight | 2800 g |
IP67 | Ingress protection | IP54 |
4 | Durability tier | 2 |
5.3 | Bluetooth version | 5.3 |
Yes | Can charge another device | Yes |
No | USB audio input | No |
No | Auracast or compatible broadcast pairing | No |
No | Floats in water | No |
No | Speakerphone | No |
Evidence-based guidance · Balanced model
Marshall Kilburn III 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 Max Portable Speaker for weight (2130 g), durability tier (4).
Consider Marshall Kilburn III for reference price ($379.99), advertised battery life (50 hours).
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Where to buy Bose SoundLink Max Portable Speaker
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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.