Samsung Galaxy Buds2 Pro vs Sennheiser HD 660S2
The Verdict
Samsung Galaxy Buds2 Pro and Sennheiser HD 660S2 serve entirely different use cases and listener profiles. Galaxy Buds2 Pro excel as portable, feature-rich earbuds with intelligent ANC featuring three adjustable levels, impressive 5-hour battery life with ANC enabled, and seamless Samsung ecosystem integration via Auto Switch technology. Their custom coaxial 2-way drivers deliver balanced sound in a compact form factor. Conversely, HD 660S2 represent wired, open-back audiophile headphones requiring a dedicated amplifier due to their 300-ohm impedance. Handcrafted in Germany with replaceable components, these excel for stationary listening environments demanding analytical sound reproduction. At $229 versus $499, price alone doesn't determine superiority. Choose Galaxy Buds2 Pro for active lifestyles, commuting, and wireless convenience with solid sound quality. Select HD 660S2 for critical listening, studio reference work, and those prioritizing sonic accuracy over portability. These genuinely target different audiences.
Who Should Buy
Buy the Samsung Galaxy Buds2 Pro if…
- →24-bit Samsung Seamless codec for Hi-Fi audio quality on Galaxy devices
- →360 Audio with head tracking creates an immersive surround experience
- →Compact and lightweight at 5.5 g per earbud for comfortable fit
Buy the Sennheiser HD 660S2 if…
- →Reference-grade sound with improved bass over the original HD 660S
- →Both 6.35mm and 4.4mm balanced cables included in the box
- →Open-back design creates a wide, natural soundstage
Category Scores
Pros & Cons
Samsung Galaxy Buds2 Pro
Pros
- 24-bit Samsung Seamless codec for Hi-Fi audio quality on Galaxy devices
- 360 Audio with head tracking creates an immersive surround experience
- Compact and lightweight at 5.5 g per earbud for comfortable fit
- IPX7 water resistance handles sweat and rain confidently
- Voice Detect automatically pauses and enables transparency mode
Cons
- Samsung Seamless codec only works with Samsung Galaxy devices
- 5-hour ANC battery life is short — case extends to 18 hours
- No multipoint Bluetooth for dual-device connectivity
- Touch controls can be finicky and hard to activate consistently
- ANC is not as strong as Sony WF-1000XM5 or AirPods Pro 2
Sennheiser HD 660S2
Pros
- Reference-grade sound with improved bass over the original HD 660S
- Both 6.35mm and 4.4mm balanced cables included in the box
- Open-back design creates a wide, natural soundstage
- Lightweight at 260 g for an audiophile over-ear
- Replaceable parts make it a long-term investment
Cons
- 300-ohm impedance requires a dedicated amp/DAC to drive properly
- Wired only — no Bluetooth option
- Open-back leaks significant sound — not for shared spaces
- $499 is steep for headphones that need additional equipment
Full Specifications
| Spec | Samsung Galaxy Buds2 Pro | Sennheiser HD 660S2 |
|---|---|---|
| Active Noise Cancelling | ||
| Type | in-ear | over-ear |
| Weight | 5.5 g (each) | 260 g |
| Battery | ||
| Battery life | 5 hrs (earbuds with ANC), 18 hrs total with case | N/A (wired) |
| Charging | USB-C, Qi wireless, 5 min = 1 hr playback | N/A |
| Drivers | Custom coaxial 2-way driver (10mm woofer + 5.3mm tweeter) | 42mm dynamic transducer, 300 ohm impedance |
| Features | Intelligent ANC with 3 adjustable levels, 360 Audio with head tracking, SmartThings Find for locating lost earbuds, Auto Switch between Samsung devices, Voice Detect for automatic transparency mode | Open-back audiophile design, 300-ohm impedance for dedicated amp/DAC use, Balanced 4.4mm Pentaconn cable included, Replaceable ear pads and cables, Handmade in Germany |
| Connectivity | ||
| Wired option | ||
| Codecs | Samsung Seamless (24-bit), AAC, SBC | |
| Bluetooth | 5.3 | None (wired only) |
| Multipoint | ||
| Water Resistance | IPX7 | None |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
Explore more in headphones, see all Samsung products or all Sennheiser products. View full details for the Samsung Galaxy Buds2 Pro or the Sennheiser HD 660S2.