Detailed comparison and review of Sony WH-CH520 and Poly Voyager Focus B825-M. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - Bluetooth - wireless - USB-A via Bluetooth adapter | |
|---|---|---|---|
| Height | - | 7 cm | |
| Width | - | 18.3 cm | |
| Depth | - | 16 cm | |
| Weight | 147 g | 155 g | Sony WH-CH520 are lighter than Sony WH-CH520 headphones. |
| Colour | Beige | Black | Blue | White | Black | |
| Body Material | Recycled plastic | - | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 10 m | 30 m | Poly Voyager Focus B825-M have a greater operating distance than Sony WH-CH520. |
| SOUND QUALITY | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.2 | Bluetooth 4.1 | Sony WH-CH520 have a more advanced version of Bluetooth than Poly Voyager Focus B825-M. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC | - | |
| Active Noise Cancelling | - | Yes | Poly Voyager Focus B825-M are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | Digital Sound Enhancement Engine (DSEE), 360 Reality Audio | - | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Diaphragm | 30 mm | 32 mm | Poly Voyager Focus B825-M have a thicker diaphragm than Sony WH-CH520. |
| Simultaneously Connectable Devices Qty (Multipoint) | 2 | 8 | Poly Voyager Focus B825-M have the ability to connect to multiple devices simultaneously. |
| Features | MultiPoint Technology, Google Fast Pair, Microsoft Swift Pair | Smart Sensor Technology |
| MICROPHONE | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | MEMS-directional | |
| Frequency Response | - | 100 - 6700 Hz | |
| Microphones Included | - | 3 |
| REMOTE CONTROL | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Controls | Volume, play/pause, skip track | Volume, answer/end, microphone on/mute, play/pause |
|---|
| CABLE | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Cable Type | USB-C charge cable | Micro-USB charging cable |
|---|
| FEATURES | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Internet of Things (IoT) Compatible | Yes | - | |
|---|---|---|---|
| Voice Control | Direct | - | |
| Intelligent Assistant | Siri, Google Assistant | - |
| BATTERY AND CHARGING | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Battery Type | Headphone battery rechargeable | Headset battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 325 mAh | |
| Battery Life | 50 hour(s) | 15 hour(s) | Sony WH-CH520 lasts longer on a single charge than the Poly Voyager Focus B825-M. |
| Battery Life Details | Continuous playback: up to 50 hours Continuous talk: up to 40 hours |
Continuous playback (AAC, active noise-cancelling on): up to 12 hours Continuous talk (active noise-cancelling off): up to 12 hours Continuous talk (active noise-cancelling on): up to 10 hours Continuous playback (active noise-cancelling off): up to 15 hours |
|
| Standby Time | 200 hours | - | |
| Charging Time | 3 hour(s) | 2 hour(s) | Poly Voyager Focus B825-M recharge faster than Sony WH-CH520. |
| CONNECTIONS | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Connector Type | USB (power only) (USB Type-C) Bluetooth |
- |
|---|
| OTHERS | Sony WH-CH520 | Poly Voyager Focus B825-M |
|---|
| Included Accessories | - | Travel pouch, BT700 Bluetooth USB adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Skype for Business, Certified for Microsoft Teams |
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