In depth comparison and review of Poly Voyager Focus UC B825S-M and Sennheiser MOMENTUM 4. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Poly Voyager Focus UC B825S-M | Sennheiser MOMENTUM 4 |
|---|
| Product Type | Headset - Bluetooth - wireless | Headphones - Bluetooth - wireless, wired - 2.5 mm jack, USB-C | |
|---|---|---|---|
| Height | - | 19.5 cm | |
| Width | - | 18 cm | |
| Depth | - | 4.63 cm | |
| Weight | 155 g | 293 g | Poly Voyager Focus UC B825S-M are lighter than Poly Voyager Focus UC B825S-M headphones. |
| Colour | - | Black | White | |
| Earpad Material | - | Synthetic leather | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 45 m | - | |
| High-Resolution Audio | - | Yes |
| SOUND QUALITY | Poly Voyager Focus UC B825S-M | 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 4.1 | Bluetooth 5.2 | Sennheiser MOMENTUM 4 have a more advanced version of Bluetooth than Poly Voyager Focus UC B825S-M. |
| Bluetooth Profiles | Advanced Audio Distribution Profile (A2DP) | 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 | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Adaptive Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | - | 6 - 22000 Hz | |
| Total Harmonic Distortion (THD) | - | 0.3% | |
| Sensitivity | - | 106 dB | |
| Impedance | - | 60 Ohm | |
| Diaphragm | - | 42 mm | |
| Features | - | Smart Pause, Crystal-clear Calls |
| MICROPHONE | Poly Voyager Focus UC B825S-M | Sennheiser MOMENTUM 4 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | Mono | MEMS-directional | |
| Noise Cancelling | - | Yes | Sennheiser MOMENTUM 4 microphone can cancel out ambient noise. |
| Frequency Response | - | 50 - 10000 Hz | |
| Microphones Included | - | 4 |
| REMOTE CONTROL | Poly Voyager Focus UC B825S-M | Sennheiser MOMENTUM 4 |
|---|
| Controls | Volume | Volume, play/pause, equaliser preset |
|---|
| CABLE | Poly Voyager Focus UC B825S-M | Sennheiser MOMENTUM 4 |
|---|
| Cable Type | Charging cable | 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 | Poly Voyager Focus UC B825S-M | Sennheiser MOMENTUM 4 |
|---|
| Features | - | Transparent Hearing mode, auto power on/off | |
|---|---|---|---|
| Sensors | - | Touch sensor | |
| Additional Functions | DSP | Smart Touch Control, USB-C charging port |
| BATTERY AND CHARGING | Poly Voyager Focus UC B825S-M | Sennheiser MOMENTUM 4 |
|---|
| Battery Type | Headset battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 700 mAh | |
| Battery Life | 15 hour(s) | 60 hour(s) | Sennheiser MOMENTUM 4 lasts longer on a single charge than the Poly Voyager Focus UC B825S-M. |
| Charging Time | - | 2 hour(s) | |
| Included Qty | - | 1 |
| CONNECTIONS | Poly Voyager Focus UC B825S-M | Sennheiser MOMENTUM 4 |
|---|
| Connector Type | Bluetooth | Headphones (sub-mini phone 2.5 mm 4-pole) USB (24 pin USB-C) |
|---|
| OTHERS | Poly Voyager Focus UC B825S-M | Sennheiser MOMENTUM 4 |
|---|
| Included Accessories | Carrying case, Bluetooth USB adapter, charging stand | Carrying case, airplane adapter, headphones cable (1.2 m), USB-C charging cable (1.2m) | |
|---|---|---|---|
| Software Included | - | Sennheiser Smart Control | |
| Compliant Standards | - | Bluetooth Class 1 | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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