Quick takeaway
Anker Soundcore Liberty 4 NC leads this matchup 0 to 0 on measured spec rows and by 100 points overall.
Anker Soundcore Liberty 4 NC vs Sennheiser HD 660S2
Choose Anker Soundcore Liberty 4 NC if...
Pick Anker Soundcore Liberty 4 NC if its current price, brand, or design fits your shortlist better than Sennheiser HD 660S2.
Choose Sennheiser HD 660S2 if...
Pick Sennheiser HD 660S2 if its current price, brand, or design fits your shortlist better than Anker Soundcore Liberty 4 NC.
Side-by-side specs
This is the raw comparison view. It is there for the rows that actually decide the purchase, not just the headline winner badge.
Battery and power
| Spec | Anker Soundcore Liberty 4 NC | Sennheiser HD 660S2 |
|---|---|---|
| Battery Life | Up to 20-30 h (ANC on) | Up to 20-30 h (ANC on) |
Connectivity
| Spec | Anker Soundcore Liberty 4 NC | Sennheiser HD 660S2 |
|---|---|---|
| Bluetooth Version | Bluetooth 5.x | Bluetooth 5.x |
| Connectivity | Wireless (Bluetooth) | Wireless (Bluetooth) |
General
| Spec | Anker Soundcore Liberty 4 NC | Sennheiser HD 660S2 |
|---|---|---|
| Brand | Anker | Sennheiser |
| Category | Headphones | Headphones |
| Form Factor | Over-ear | Over-ear |
| Model Number | - | 660S2 |
The verdict
Based on 9 spec comparisons plus user ratings, the Anker Soundcore Liberty 4 NC comes out ahead with a stronger overall score.
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Comparison FAQ
These answers explain how the score is built, when the lower-scoring option still makes sense, and what to confirm before you buy.
What is the Anker Soundcore Liberty 4 NC vs Sennheiser HD 660S2 score measuring?
VSFinder compares 2 visible spec rows, then blends those wins with current price and Amazon rating signals so the page reflects both raw specs and real shopping context.
When does the lower-scoring option still make sense?
The lower-scoring model can still be the better buy if the few areas where it wins line up with how you shop. That matters most when those wins cover the exact features you care about more than the overall leader.
What should I confirm before I buy?
Confirm the live Amazon listing for price and availability, then double-check the few spec rows that matter most to your use case. We currently track $149.99 for Anker Soundcore Liberty 4 NC and $149.99 for Sennheiser HD 660S2.