Sennheiser Momentum 5 Wireless vs Sennheiser HD 660S2

Updated Jul 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the Sennheiser Momentum 5 Wireless is the better pick — it scores 89/100 to the Sennheiser HD 660S2's 19, leading on Noise Cancelling and Wireless. Choose the Sennheiser HD 660S2 instead if comfort & build matters most to you, where it comes out ahead.

Sound quality isn't scored yet (we have no measured audio data), so the score covers features, battery, noise cancelling and build.

Verdict

Our overall take, at a glance

Sennheiser Momentum 5 Wireless leads overall

Sennheiser Momentum 5 Wireless

Sennheiser HD 660S2

Watch-outs

Compromises to know before you buy

Sennheiser Momentum 5 Wireless

No notable compromises found.

Sennheiser HD 660S2

No microphone — you can't take calls.

Winner by category for Sennheiser Momentum 5 Wireless vs Sennheiser HD 660S2
Category	Sennheiser Momentum 5 Wireless	Sennheiser HD 660S2	Winner
Noise Cancelling	96	0	Sennheiser Momentum 5 Wireless
Wireless	97	4	Sennheiser Momentum 5 Wireless
Battery	98	0	Sennheiser Momentum 5 Wireless
Comfort & Build	45	55	Sennheiser HD 660S2
Connectivity	96	4	Sennheiser Momentum 5 Wireless

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jul 2026.

Sennheiser Momentum 5 Wireless

The Sennheiser Momentum 5 Wireless is a pair of over-ear, active noise-canceling headphones aimed at listeners seeking sustainable audio gear. A defining characteristic of this model is its user-replaceable battery, which aims to extend the overall lifespan of the device. It also features integrated controls, wireless connectivity, and active noise cancelation.

Best for Eco-conscious buyers looking for headphones with easily serviceable batteriesBest for Daily commuters needing active noise cancelation

Pros

Incorporates an unusual user-replaceable battery design to promote product longevity
Equipped with active noise cancelation to block ambient environmental sounds
Provides wireless connectivity alongside dedicated microphone systems for calling

Cons

Limited immediate purchasing options due to rolling retail availability at launch

Sennheiser HD 660S2

The Sennheiser HD 660S2 is a reference headphone model known for its clear, detailed, and warm sound signature. The design includes rich black velour earpads, and the headphones are noted for being lightweight. It provides impressive vocal clarity in the midrange.

Best for vocal trackingBest for classical musicBest for rock

Pros

Features a fuller and warmer bass response than the original HD 660S
The sound is described as clear, crisp, and detailed without sounding overly analytical
Provides excellent detail and separation, with vocals prominently featured
Is noted for being comfortable for long listening sessions due to light weight and earpads

Cons

Can have a rather tight clamping force out of the box
May not be suitable for genres requiring extremely thunderous bass (e.g., EDM or rap)

Value for Money

Which is the better deal for the price

Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.

Sennheiser Momentum 5 Wireless

Check Price on Amazon

Sennheiser HD 660S2

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Physical Comparison

Weigh them up, then compare real dimensions in 3D

Sennheiser Momentum 5 WirelessSennheiser HD 660S2

Sennheiser Momentum 5 Wireless is 30 g (12%) heavier than Sennheiser HD 660S2.

Review Videos

Hand-picked expert reviews for each product

Detailed Specifications

The full spec sheet, side by side

Noise Cancelling

Feature	Sennheiser Momentum 5 Wireless	Sennheiser HD 660S2
Active Noise Cancelling	Yes	No
Transparency Mode	Yes	No

Wireless

Feature	Sennheiser Momentum 5 Wireless	Sennheiser HD 660S2
Wireless	Yes	No
Bluetooth Version		N/A
Supported Codecs	SBC, AAC, aptX, aptX HD, aptX Adaptive, aptX Lossless	N/A
Multipoint Connection	Yes	No

Battery

Feature	Sennheiser Momentum 5 Wireless	Sennheiser HD 660S2
Battery Life (ANC On)	57 h	N/A
Quick Charge	Yes	No

Comfort & Build

Feature	Sennheiser Momentum 5 Wireless	Sennheiser HD 660S2
Weight	290 g	260 g10% less
Folding Design	No	No
Water Resistance	Not IP Rated	N/A
Dimensions	18 × 19.7 × 4.7 cm	15 × 20 × 10 cm

Connectivity

Feature	Sennheiser Momentum 5 Wireless	Sennheiser HD 660S2
Wired Connection	USB-C, 3.5 mm	6.35mm + 4.4mm balanced
Detachable Cable	Yes	Yes
Built-in Microphone	Yes	No

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about Sennheiser Momentum 5 Wireless vs Sennheiser HD 660S2 comparison

Based on our overall comparison score, Sennheiser Momentum 5 Wireless rates higher at 83/100 versus 24/100 for Sennheiser HD 660S2 — a 59-point lead. Sennheiser Momentum 5 Wireless is the stronger overall pick, though the right choice still depends on which specs matter most to you; the full spec table above breaks down every difference.

Sennheiser Momentum 5 Wireless and Sennheiser HD 660S2 are compared side by side above across every spec in the headphones category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 83/100 for Sennheiser Momentum 5 Wireless and 24/100 for Sennheiser HD 660S2.

At launch, Sennheiser Momentum 5 Wireless was the more affordable option ($400) versus Sennheiser HD 660S2 ($599). Weigh that against the overall scores (83/100 vs 24/100) and the value-for-money meter above to judge whether the higher-rated model justifies its price for your needs. Current retail prices vary — check the retailer.

If you want the higher-rated headphones option overall, Sennheiser Momentum 5 Wireless (83/100) edges out Sennheiser HD 660S2 (24/100). But if Sennheiser HD 660S2 is cheaper or stronger on the specific specs you care about, it can still be the better buy — use the spec table and strengths profile above to decide.