Side by side comparison and review of EPOS I SENNHEISER ADAPT 261 and Sennheiser MOMENTUM 4. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headphones - Bluetooth - wireless, wired - 2.5 mm jack, USB-C | |
|---|---|---|---|
| Height | - | 19.5 cm | |
| Width | - | 18 cm | |
| Depth | - | 4.63 cm | |
| Weight | 120.7 g | 293 g | EPOS I SENNHEISER ADAPT 261 are lighter than EPOS I SENNHEISER ADAPT 261 headphones. |
| Colour | Black | Black | White | |
| Earpad Material | Leatherette | Synthetic leather | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| High-Resolution Audio | - | Yes |
| SOUND QUALITY | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | Sennheiser MOMENTUM 4 can be folded. |
| Connectivity Technology | Wireless | Wireless, wired | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.2 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX Adaptive | |
| Active Noise Cancelling | - | Yes | Sennheiser MOMENTUM 4 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Adaptive Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | 20 - 20000 Hz | 6 - 22000 Hz | Sennheiser MOMENTUM 4 offer a larger frequency range than EPOS I SENNHEISER ADAPT 261. |
| Total Harmonic Distortion (THD) | - | 0.3% | |
| Sensitivity | - | 106 dB | |
| Impedance | - | 60 Ohm | |
| Max Sound Pressure | 118 dB | - | |
| Diaphragm | - | 42 mm | |
| Magnet Material | Neodymium | - | |
| Features | - | Smart Pause, Crystal-clear Calls |
| MICROPHONE | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Form Factor | Headset microphone | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | - | MEMS-directional | |
| Noise Cancelling | - | Yes | Sennheiser MOMENTUM 4 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 8000 Hz | 50 - 10000 Hz | Sennheiser MOMENTUM 4 offer a larger microphone frequency range than EPOS I SENNHEISER ADAPT 261. |
| Microphones Included | - | 4 |
| REMOTE CONTROL | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Controls | - | Volume, play/pause, equaliser preset |
|---|
| CABLE | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Cable Type | - | Headphones cable - detachable - L shaped / sub-mini phone 2.5 mm 4-pole - 1.2 m USB-C to USB-A cable - detachable - 1.2 m |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes |
| FEATURES | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Features | EPOS ActiveGard | Transparent Hearing mode, auto power on/off | |
|---|---|---|---|
| Sensors | - | Touch sensor | |
| Additional Functions | - | Smart Touch Control, USB-C charging port |
| BATTERY AND CHARGING | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 700 mAh | |
| Battery Life | 27 hour(s) | 60 hour(s) | Sennheiser MOMENTUM 4 lasts longer on a single charge than the EPOS I SENNHEISER ADAPT 261. |
| Charging Time | - | 2 hour(s) | |
| Included Qty | - | 1 |
| CONNECTIONS | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Connector Type | - | Headphones (sub-mini phone 2.5 mm 4-pole) USB (24 pin USB-C) |
|---|
| OTHERS | EPOS I SENNHEISER ADAPT 261 | Sennheiser MOMENTUM 4 |
|---|
| Included Accessories | USB-C adapter | Carrying case, airplane adapter, headphones cable (1.2 m), USB-C charging cable (1.2m) | |
|---|---|---|---|
| Software Included | - | Sennheiser Smart Control | |
| Software Certification | Certified for Microsoft Teams, Optimised for UC | - | |
| Compliant Standards | - | Bluetooth Class 1 | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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